CA2216586C - Organosilicone having a carboxyl functional group thereon - Google Patents
Organosilicone having a carboxyl functional group thereon Download PDFInfo
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- CA2216586C CA2216586C CA002216586A CA2216586A CA2216586C CA 2216586 C CA2216586 C CA 2216586C CA 002216586 A CA002216586 A CA 002216586A CA 2216586 A CA2216586 A CA 2216586A CA 2216586 C CA2216586 C CA 2216586C
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- composition
- alkyl
- polysiloxane
- functional group
- group
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 title claims description 31
- 125000000524 functional group Chemical group 0.000 title claims description 19
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 80
- 239000000203 mixture Substances 0.000 claims abstract description 64
- -1 polysiloxane Polymers 0.000 claims abstract description 57
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 32
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 32
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000001257 hydrogen Substances 0.000 claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 20
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 20
- 125000003342 alkenyl group Chemical group 0.000 claims abstract description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 8
- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 8
- 239000011593 sulfur Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 125000005702 oxyalkylene group Chemical group 0.000 claims abstract description 5
- 125000002877 alkyl aryl group Chemical group 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 31
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 150000002148 esters Chemical class 0.000 claims description 26
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 21
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical class FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 17
- 125000002924 primary amino group Chemical class [H]N([H])* 0.000 claims description 13
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 5
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 125000004181 carboxyalkyl group Chemical group 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 238000006459 hydrosilylation reaction Methods 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 3
- 239000008240 homogeneous mixture Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000011541 reaction mixture Substances 0.000 description 19
- 150000003141 primary amines Chemical class 0.000 description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000000376 reactant Substances 0.000 description 10
- 239000007795 chemical reaction product Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 239000003513 alkali Substances 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 7
- IUNMPGNGSSIWFP-UHFFFAOYSA-N dimethylaminopropylamine Chemical compound CN(C)CCCN IUNMPGNGSSIWFP-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 5
- 239000003039 volatile agent Substances 0.000 description 5
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 125000002843 carboxylic acid group Chemical group 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000012442 inert solvent Substances 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- ZWWQRMFIZFPUAA-UHFFFAOYSA-N dimethyl 2-methylidenebutanedioate Chemical compound COC(=O)CC(=C)C(=O)OC ZWWQRMFIZFPUAA-UHFFFAOYSA-N 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 150000004678 hydrides Chemical group 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- GIEGKXINITVUOO-UHFFFAOYSA-N 2-methylidenebutanedioic acid Chemical compound OC(=O)CC(=C)C(O)=O.OC(=O)CC(=C)C(O)=O GIEGKXINITVUOO-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 125000000746 allylic group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008241 heterogeneous mixture Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- WFYCWAPHNCARGR-UHFFFAOYSA-N methyl 2-oxopyrrolidine-1-carboxylate Chemical compound COC(=O)N1CCCC1=O WFYCWAPHNCARGR-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 1
- 235000019799 monosodium phosphate Nutrition 0.000 description 1
- ZUHZZVMEUAUWHY-UHFFFAOYSA-N n,n-dimethylpropan-1-amine Chemical compound CCCN(C)C ZUHZZVMEUAUWHY-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 150000004040 pyrrolidinones Chemical class 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052990 silicon hydride Inorganic materials 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
- C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
- C08G77/392—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/0834—Compounds having one or more O-Si linkage
- C07F7/0838—Compounds with one or more Si-O-Si sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
- C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
- C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
- C08G77/388—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Silicon Polymers (AREA)
Abstract
A polysiloxane com-position is provided hav-ing formula (1), wherein: R1 can be R2 or at least one pyrrolidone containing group of general formula (2), wherein: R5 is hy-drogen, lower alkyl or al-kali metal; F is linear or branched alkylene of 1-12 carbon atoms; n is 0 or 2; n1 is 0 or 1; n2 is 0 or 1; and B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or lower alkyl; with the pro-viso that when n is 0 and n2 is 1, n1 is 1, when n is 2 and n2 is 1, n1 is 0 or 1 and when n is 2 and n2 is 0, n1 is 0; R2 is selected from alkyl, aryl and olefinic; R3 and R4 are selected from alkyl, aryl capped or uncapped poly-oxyalkylene, alkaryl, aralkylene or alkenyl; a is an integer from 0 to 50,000; and b is a n integer from 0 to 100.
Description
ORGANOSILICONE HAVING A CARBOXYL FUNCTIONAL GROUP THEREON
Field of the Invention The present invention relates to novel organosilicone compositions and, more particularly, to silicone compositions having a carboxyl functional group thereon.
Background of the Invention While carboxyl functional organosilicones are known, they are generally difficult and expensive to prepare and the commercial use thereof has therefore been limited. Heretofore, no convenient method for directly preparing polysiloxanes containing functional carboxylic acid groups is known and indirect routes for their preparation have generally been used, including hydrosilylation of an unsaturated ester followed by hydrolysis, or alternatively, by hydrolysis of nitrile-containing silicone fluids. However, polysiloxanes containing one or more functional groups such as amino groups are well known and readily available and have been used in a variety of commercial applications. Accordingly, the development of a method for readily and more directly preparing polysiloxanes containing one or more functional carboxyl groups would be desirable and it would be particularly advantageous if such method employed readily available materials such as amino functional polysiloxanes for not only preparing carboxyl functional polysiloxanes but a variety of organosilicone derivatives thereof as well, including silicone containing compositions which are readily soluble in a variety of solvents, preferably soluble in water such as silicone-containing phospholipid compositions and the like.
While, as indicated, polysiloxanes containing functional carboxylic acid groups and methods for preparing the same have heretofore been suggested, there is no disclosure or suggestion of the novel carboxyl functional silicone compositions of the present invention or of the method of making the same.
Summary of the Invention It is accordingly an object of the present invention to provide novel organosilicone compositions having at least one carboxyl functional group thereon.
It is another object of the present invention to provide a method for directly and readily preparing organosilicone compositions having at least one carboxyl functional group thereon.
In accordance with the present invention, there has now been discovered novel polysiloxanes containing one or more carboxylic acid groups and/or the ester derivatives thereof that may be represented by the following general formula:
R R R R
s 3 3 s R- SiO- SiO-- SiO-$i R
R 2 R4 R1 Ra a b wherein:
R1, which can be the same or different, can be selected from RZ, H, a primary amine containing group, and a pyrrolidone containing carboxyl functional group of the formula:
C"
OR
C H~ F 8 F- N
n rn1 n2 wherein at least one of R, is a pyrrolidone containing carboxyl or ester functional group or salt derivative thereof as shown;
F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; R2 is as defined below; R5 can be hydrogen, lower alkyl (C,_6) or alkali metal; n is zero or 2; n' is zero or 1; n2 is zero or 1; and B is -NR9, sulfur (S) or oxygen (0), wherein R9 is hydrogen or lower alkyl ( C,-6 ), with the proviso that when n is 0 and n' is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1 and when n is 2 and n2 is 0, n' is 0;
R2 can be the same or different and can be selected from alkyl, aryl and olefinic(alkenyl);
R, and Rõ which may be the same or different, are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene and alkenyl (vinyl);
a can be an integer from 0 to 50,000; and b can be an integer from 0 to 100.
In another aspect of the present invention there is provided a method for preparing polysiloxanes containing one or more carboxylic acid pyrrolidone groups and/or the ester derivatives thereof, which comprises reacting an organosilicone fluid or composition having at least one primary amine functional group with itaconic acid or an ester thereof at an elevated temperature (preferably from about 90 C to about 150 C) for a time sufficient to react, preferably substantially completely react (generally ranging from about 1-5 hours), the itaconic and or ester thereof with the functional primary amine group(s) on the silicone fluid or composition to form an organosilicone composition having at least one pyrrolidone-containing 3a carboxyl functional group. Desirably, the organosilicone composition having at least one primary amine functional group is substantially compatible with said itaconic acid or ester derivative thereof and forms a homogenous reaction mixture therewith.
Field of the Invention The present invention relates to novel organosilicone compositions and, more particularly, to silicone compositions having a carboxyl functional group thereon.
Background of the Invention While carboxyl functional organosilicones are known, they are generally difficult and expensive to prepare and the commercial use thereof has therefore been limited. Heretofore, no convenient method for directly preparing polysiloxanes containing functional carboxylic acid groups is known and indirect routes for their preparation have generally been used, including hydrosilylation of an unsaturated ester followed by hydrolysis, or alternatively, by hydrolysis of nitrile-containing silicone fluids. However, polysiloxanes containing one or more functional groups such as amino groups are well known and readily available and have been used in a variety of commercial applications. Accordingly, the development of a method for readily and more directly preparing polysiloxanes containing one or more functional carboxyl groups would be desirable and it would be particularly advantageous if such method employed readily available materials such as amino functional polysiloxanes for not only preparing carboxyl functional polysiloxanes but a variety of organosilicone derivatives thereof as well, including silicone containing compositions which are readily soluble in a variety of solvents, preferably soluble in water such as silicone-containing phospholipid compositions and the like.
While, as indicated, polysiloxanes containing functional carboxylic acid groups and methods for preparing the same have heretofore been suggested, there is no disclosure or suggestion of the novel carboxyl functional silicone compositions of the present invention or of the method of making the same.
Summary of the Invention It is accordingly an object of the present invention to provide novel organosilicone compositions having at least one carboxyl functional group thereon.
It is another object of the present invention to provide a method for directly and readily preparing organosilicone compositions having at least one carboxyl functional group thereon.
In accordance with the present invention, there has now been discovered novel polysiloxanes containing one or more carboxylic acid groups and/or the ester derivatives thereof that may be represented by the following general formula:
R R R R
s 3 3 s R- SiO- SiO-- SiO-$i R
R 2 R4 R1 Ra a b wherein:
R1, which can be the same or different, can be selected from RZ, H, a primary amine containing group, and a pyrrolidone containing carboxyl functional group of the formula:
C"
OR
C H~ F 8 F- N
n rn1 n2 wherein at least one of R, is a pyrrolidone containing carboxyl or ester functional group or salt derivative thereof as shown;
F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; R2 is as defined below; R5 can be hydrogen, lower alkyl (C,_6) or alkali metal; n is zero or 2; n' is zero or 1; n2 is zero or 1; and B is -NR9, sulfur (S) or oxygen (0), wherein R9 is hydrogen or lower alkyl ( C,-6 ), with the proviso that when n is 0 and n' is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1 and when n is 2 and n2 is 0, n' is 0;
R2 can be the same or different and can be selected from alkyl, aryl and olefinic(alkenyl);
R, and Rõ which may be the same or different, are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene and alkenyl (vinyl);
a can be an integer from 0 to 50,000; and b can be an integer from 0 to 100.
In another aspect of the present invention there is provided a method for preparing polysiloxanes containing one or more carboxylic acid pyrrolidone groups and/or the ester derivatives thereof, which comprises reacting an organosilicone fluid or composition having at least one primary amine functional group with itaconic acid or an ester thereof at an elevated temperature (preferably from about 90 C to about 150 C) for a time sufficient to react, preferably substantially completely react (generally ranging from about 1-5 hours), the itaconic and or ester thereof with the functional primary amine group(s) on the silicone fluid or composition to form an organosilicone composition having at least one pyrrolidone-containing 3a carboxyl functional group. Desirably, the organosilicone composition having at least one primary amine functional group is substantially compatible with said itaconic acid or ester derivative thereof and forms a homogenous reaction mixture therewith.
In yet another aspect of the present invention there is provided an alternate method for preparing polysiloxanes containing one or more ester derivatives of carboxylic acid pyrrolidone groups which comprises reacting an organosilicone fluid or composition having one or more hydride groups (terminal or lateral) on the polysiloxane chain with an N-alkenyl carboalkoxy compound containing a pyrrolidone group in the presence of a noble metal catalyst, preferably soluble platinum catalyst, at an elevated temperature (preferably between about 65 C and 130 C) for the time sufficient to react, preferably substantially completely react, the hydride groups on the silicone fluid or composition with the N-alkenyl carboalkoxy compound containing the pyrrolidone group.
In a still further aspect of the present invention there is provided a novel silicone-modified amidoamine composition having the formula:
II R
C\ 7 r-( C s j.3 lk R 10 C S; !- H F-"' N A
ni n7 R, =
0 wherein:
RIO is the silicone backbone chain as herein described to which at least one pyrrolidone containing amidoamine derivative of a carboxyl functional group can be attached as shown;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl of up to 6 carbon atoms each, or cycloalkyl of up to 6 carbon atoms, or polyoxyalkylene of up to 10 carbon atoms within the oxyalkylene unit;
R7 and Re, which may be the same or different, are selected from alkyl, hydroxyalkyl, carboxyalkyl of up to 6 carbon atoms in each alkyl; and polyoxyalkylene of up to carbon atoms; in addition R, and R.
In a still further aspect of the present invention there is provided a novel silicone-modified amidoamine composition having the formula:
II R
C\ 7 r-( C s j.3 lk R 10 C S; !- H F-"' N A
ni n7 R, =
0 wherein:
RIO is the silicone backbone chain as herein described to which at least one pyrrolidone containing amidoamine derivative of a carboxyl functional group can be attached as shown;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl of up to 6 carbon atoms each, or cycloalkyl of up to 6 carbon atoms, or polyoxyalkylene of up to 10 carbon atoms within the oxyalkylene unit;
R7 and Re, which may be the same or different, are selected from alkyl, hydroxyalkyl, carboxyalkyl of up to 6 carbon atoms in each alkyl; and polyoxyalkylene of up to carbon atoms; in addition R, and R.
5 taken together with the nitrogen to which they are attached may represent an N-hetercycle.
n is 0 or 2;
n' is zero or 1;
10 n2 is zero or 1;
n' is at least 1 and preferably an integer from 2 to 12;
B is -NR9, sulfur or oxygen, wherein R. is hydrogen or lower alkyl (C,_6); with the proviso that when n is 0 and nz is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and nZ is 0, n' is 0;
F, which may be the same or different is branched or linear alkylene of 1-12 carbon atoms; and d is at least one.
Description of the Preferred Embodiments In accordance with the present invention there are provided novel polysiloxanes comprising a class of carboxyl functional polysiloxanes which may be represented by the general formula:
R R R R
R-Si O-'SiO- Si0-8,1-R
1 I I f I 1 R R R R
s a i z a b wherein:
Rõ which can be the same or different, can be selected from R2, H, a primary amine containing group and a pyrrolidone containing carboxyl functional group of the general formula:
O
I I
c O Rs -~cH2 F B F- N
n nl n2 wherein at least one R, is a pyrrolidone-containing carboxyl or ester functional group or salt derivative thereof as shown;
F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; R, is as defined below; RS is hydrogen, alkyl, preferably lower alkyl (C,_ 6), or an alkali metal; n is 0 or 2; n' is 0 or 1; n2 is 0 or 1; and B is -NR9, sulfur (S) or oxygen (0) , wherein R9 is hydrogen or lower alkyl (C,_6); with the proviso when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1 and when n is 2 and n2 is 0, n' is 0;
R2 can be the same or different and can be selected from alkyl, aryl and olefinic(alkenyl);
R3 and Rõ which may be the same or are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene and alkenyl (vinyl);
a can be an integer from 0 to 50,000;
b can be an integer from 0 to 100;
It is evident from the general formula above that the polysiloxane compositions of the present invention have one or more pyrrolidone containing functional carboxyl or ester group(s) or salt derivative thereof linked terminally, laterally or both terminally and laterally to the silicone (polysiloxane) chain through a hydrocarbon linkage which may contain a hetero atom.
The polysiloxane compositions according to the present invention are useful, for example, for reducing the friction of petroleum flow through pipelines as well as being precursors for a wide range of personal care products, fiber treating agents and the like which impart such advantages as improved feel, substantivity, reduced surface tension, and anti-stick characteristics.
The novel carboxyl functional polysiloxanes of the present invention surprisingly and unexpectedly can be readily and directly prepared by the reaction of corresponding silicone compositions or fluids having one or more functional primary amine groups with up to about one equivalent, preferably about stoichiometric quantities, of itaconic acid or its ester per functional primary amine group ( s) at an elevated temperature for the time sufficient for substantially all of the itaconic acid or its ester to react with the functional primary amine group(s). In general from about 0.5, preferably, from about 0.9 to about 1.1 equivalents of itaconic acid or its ester per functional primary amine group is reacted with the silicone fluid wherein substantially all the itaconic acid and preferably all the functional pr_imary amine group(s) are reacted and polysiloxane compositions with at least one pyrrolidone containing functional carboxyl group(s) and/or its ester are formed.
The reaction can be carried out neat or in an inert solvent such as alcohol, hydrocarbon solvent, chlorinated hydrocarbon and the like, as desired, in general, at elevated temperature, preferably from about 90 C to about 130 C. The reaction proceeds readily and generally complete reaction of the itaconic acid or its ester with the available functional primary amine groups will occur in from about 1 to 5 hours, with routine analytical techniques for amine and acid values as well as monitoring water and/or alcohol evolution being used to determine completion of the reaction.
Primary amine functional silicone fluids suitable for use in accordance with the practice of the invention, having one or more primary amine functional group(s) linked -terminally, laterally or both terminally and laterally, as desired, are well known and are available commercially, for example, from Dow Corning, Th. Goldschmidt AG and Shin-Etsu. While the equivalent weight of the silicone fluids or compositions which may be employed in the preparation of the polysiloxanes of the present invention is not critical, and suitable compositions may have equivalent weights of 5,000 to 10,000 or even higher, silicone fluids having equivalent weights from about 500 to about 5,000 are in general preferred.
As indicated, the polysiloxane compositions of the present invention are readily prepared by reaction of primary amine functional silicone fluids with itaconic acid or its ester. Itaconic acid (methylene succinic acid) is a compound of the formula:
CH2 = C (COOR9 ) CH2 COOR9 wherein R9, which can be the same or different, is hydrogen or lower alkyl (1-6 carbon atoms).
The compound itaconic acid is available commercially from Pfizer Chemicals Division whereas ester derivatives thereof are available from Morflex Inc., Greensboro, N.C. The compounds are produced by known fermentation techniques although chemical synthesis methods are also known.
The novel carboxyl functional polysiloxanes, or ester derivatives thereof, of the present invention can also be readily prepared by a hydrosilylation reaction wherein a silicone fluid or composition having one or more hydride substituents on the silicone chain (terminal, lateral or combination or terminal and lateral) is added to a N-alkenyl carboalkoxy containing pyrrolidone nucleus in the ~ 5 presence of a noble metal (Group VIII metal) catalyst, preferably soluble platinum, at an elevated temperature ( 65 C to 130 C) for a time sufficient for substantially all of the N-alkenyl carboalkoxy containing pyrrolidone to react with the hydride group(s). The N-alkenyl carboalkoxy containing pyrrolidone reactant can have a N-allyl or higher olefinic group of 3 or more carbon atoms which can also include at least one hetero atom. The reaction can be carried out neat or in inert solvents such as toluene, benzene, chlorobenzene, heptane and the like.
In general, from about 0.5 up to about one equivalent, preferably from about 0.9 to about 1.1 equivalents of the N-alkenyl pyrrolidone groups per functional hydride groups is reacted with the silicone fluid wherein substantially all the N-alkenyl carboalkxy containing pyrrolidone and, preferably all of the functional hydride groups are reacted. Suitable platinum catalysts include solubilized platinum or platinum metal on inert supports such as alumina, charcoal and the like. In general from about 10-3 to 10-6 moles of platinum per mole of hydride group can be used. In another aspect of the present invention, there are provided novel silicone-containing amidoamines suitable for use as a surfactants and a variety of other applications as well as intermediate reactants which are preferably derivatives of the novel polysiloxane compositions of the invention as hereinabove described. The novel amidoamine compositions of the invention may be represented by the general formula:
1 =
~ R7 c R C fi~ ~- B F- iq a3 \
io a n nl nZ Ri Re c wherein:
Rlo is a silicone backbone chain as herein described to which at least one pyrrolidone containing 5 carboxyl functional group or amidoamine derivative thereof is attached as hereinabove shown;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl up to 6 carbon atoms each, cycloalkyl of up 10 to 6 carbon atoms or polyoxyalkylene of up to 10 carbon atoms, preferably from 2 to 5 carbon atoms, within the oxyalkylene unit and at least one R6 is hydrogen;
R7 and RB7 which may be the same or different, are selected from alkyl, hydroxyalkyl, carboxyalkyl of up to 6 carbon atoms in each alkyl, and polyoxyalkylene of up to 10 carbon atoms; in addition R, and R. taken together with the nitrogen to which they are attached may represent N-heterocycle.
F, which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or lower alkyl ( C1_6 ); with the proviso that when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and n2 is 0, n' is 0;
n is 0 or 2;
nl is zero or 1;
n2 is zero or 1;
c y n' is at least 1 and preferably an integer from 2 to 12;
d is an integer from 1 or greater, generally from 1-50 and preferably 2-10.
The novel silicone-containing amidoamine compositions of the invention can be prepared as follows:
O
C~ OIt Rc R
s + D N--(CHz-}- 3 N
30 -lCI I3-)-- l~ n.I [3 nZ F- N I I 11 l; Re O
d II
CN-(CH=-)---N~~i _ 0 + RS- OH
R~~CIl3 n rnl B 2 F-N RRe c 0 d wherein:
Rlo is a silicone backbone chain as herein described to which at least one pyrrolidone containing carboxyl functional group or amidoamine derivative thereof is attached as hereinabove shown;
RS is hydrogen, lower alkyl (C,-6) or alkali metal;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl up to 6 carbon atoms each, cycloalkyl of up to 6 carbon atoms or polyoxyalkylene of up to 10 carbon atoms, preferably from 2 to 5 carbon atoms, within the oxyalkylene unit and at least one R. is hydrogen;
n is 0 or 2;
n' is zero or 1;
10 n2 is zero or 1;
n' is at least 1 and preferably an integer from 2 to 12;
B is -NR9, sulfur or oxygen, wherein R. is hydrogen or lower alkyl (C,_6); with the proviso that when n is 0 and nz is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and nZ is 0, n' is 0;
F, which may be the same or different is branched or linear alkylene of 1-12 carbon atoms; and d is at least one.
Description of the Preferred Embodiments In accordance with the present invention there are provided novel polysiloxanes comprising a class of carboxyl functional polysiloxanes which may be represented by the general formula:
R R R R
R-Si O-'SiO- Si0-8,1-R
1 I I f I 1 R R R R
s a i z a b wherein:
Rõ which can be the same or different, can be selected from R2, H, a primary amine containing group and a pyrrolidone containing carboxyl functional group of the general formula:
O
I I
c O Rs -~cH2 F B F- N
n nl n2 wherein at least one R, is a pyrrolidone-containing carboxyl or ester functional group or salt derivative thereof as shown;
F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; R, is as defined below; RS is hydrogen, alkyl, preferably lower alkyl (C,_ 6), or an alkali metal; n is 0 or 2; n' is 0 or 1; n2 is 0 or 1; and B is -NR9, sulfur (S) or oxygen (0) , wherein R9 is hydrogen or lower alkyl (C,_6); with the proviso when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1 and when n is 2 and n2 is 0, n' is 0;
R2 can be the same or different and can be selected from alkyl, aryl and olefinic(alkenyl);
R3 and Rõ which may be the same or are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene and alkenyl (vinyl);
a can be an integer from 0 to 50,000;
b can be an integer from 0 to 100;
It is evident from the general formula above that the polysiloxane compositions of the present invention have one or more pyrrolidone containing functional carboxyl or ester group(s) or salt derivative thereof linked terminally, laterally or both terminally and laterally to the silicone (polysiloxane) chain through a hydrocarbon linkage which may contain a hetero atom.
The polysiloxane compositions according to the present invention are useful, for example, for reducing the friction of petroleum flow through pipelines as well as being precursors for a wide range of personal care products, fiber treating agents and the like which impart such advantages as improved feel, substantivity, reduced surface tension, and anti-stick characteristics.
The novel carboxyl functional polysiloxanes of the present invention surprisingly and unexpectedly can be readily and directly prepared by the reaction of corresponding silicone compositions or fluids having one or more functional primary amine groups with up to about one equivalent, preferably about stoichiometric quantities, of itaconic acid or its ester per functional primary amine group ( s) at an elevated temperature for the time sufficient for substantially all of the itaconic acid or its ester to react with the functional primary amine group(s). In general from about 0.5, preferably, from about 0.9 to about 1.1 equivalents of itaconic acid or its ester per functional primary amine group is reacted with the silicone fluid wherein substantially all the itaconic acid and preferably all the functional pr_imary amine group(s) are reacted and polysiloxane compositions with at least one pyrrolidone containing functional carboxyl group(s) and/or its ester are formed.
The reaction can be carried out neat or in an inert solvent such as alcohol, hydrocarbon solvent, chlorinated hydrocarbon and the like, as desired, in general, at elevated temperature, preferably from about 90 C to about 130 C. The reaction proceeds readily and generally complete reaction of the itaconic acid or its ester with the available functional primary amine groups will occur in from about 1 to 5 hours, with routine analytical techniques for amine and acid values as well as monitoring water and/or alcohol evolution being used to determine completion of the reaction.
Primary amine functional silicone fluids suitable for use in accordance with the practice of the invention, having one or more primary amine functional group(s) linked -terminally, laterally or both terminally and laterally, as desired, are well known and are available commercially, for example, from Dow Corning, Th. Goldschmidt AG and Shin-Etsu. While the equivalent weight of the silicone fluids or compositions which may be employed in the preparation of the polysiloxanes of the present invention is not critical, and suitable compositions may have equivalent weights of 5,000 to 10,000 or even higher, silicone fluids having equivalent weights from about 500 to about 5,000 are in general preferred.
As indicated, the polysiloxane compositions of the present invention are readily prepared by reaction of primary amine functional silicone fluids with itaconic acid or its ester. Itaconic acid (methylene succinic acid) is a compound of the formula:
CH2 = C (COOR9 ) CH2 COOR9 wherein R9, which can be the same or different, is hydrogen or lower alkyl (1-6 carbon atoms).
The compound itaconic acid is available commercially from Pfizer Chemicals Division whereas ester derivatives thereof are available from Morflex Inc., Greensboro, N.C. The compounds are produced by known fermentation techniques although chemical synthesis methods are also known.
The novel carboxyl functional polysiloxanes, or ester derivatives thereof, of the present invention can also be readily prepared by a hydrosilylation reaction wherein a silicone fluid or composition having one or more hydride substituents on the silicone chain (terminal, lateral or combination or terminal and lateral) is added to a N-alkenyl carboalkoxy containing pyrrolidone nucleus in the ~ 5 presence of a noble metal (Group VIII metal) catalyst, preferably soluble platinum, at an elevated temperature ( 65 C to 130 C) for a time sufficient for substantially all of the N-alkenyl carboalkoxy containing pyrrolidone to react with the hydride group(s). The N-alkenyl carboalkoxy containing pyrrolidone reactant can have a N-allyl or higher olefinic group of 3 or more carbon atoms which can also include at least one hetero atom. The reaction can be carried out neat or in inert solvents such as toluene, benzene, chlorobenzene, heptane and the like.
In general, from about 0.5 up to about one equivalent, preferably from about 0.9 to about 1.1 equivalents of the N-alkenyl pyrrolidone groups per functional hydride groups is reacted with the silicone fluid wherein substantially all the N-alkenyl carboalkxy containing pyrrolidone and, preferably all of the functional hydride groups are reacted. Suitable platinum catalysts include solubilized platinum or platinum metal on inert supports such as alumina, charcoal and the like. In general from about 10-3 to 10-6 moles of platinum per mole of hydride group can be used. In another aspect of the present invention, there are provided novel silicone-containing amidoamines suitable for use as a surfactants and a variety of other applications as well as intermediate reactants which are preferably derivatives of the novel polysiloxane compositions of the invention as hereinabove described. The novel amidoamine compositions of the invention may be represented by the general formula:
1 =
~ R7 c R C fi~ ~- B F- iq a3 \
io a n nl nZ Ri Re c wherein:
Rlo is a silicone backbone chain as herein described to which at least one pyrrolidone containing 5 carboxyl functional group or amidoamine derivative thereof is attached as hereinabove shown;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl up to 6 carbon atoms each, cycloalkyl of up 10 to 6 carbon atoms or polyoxyalkylene of up to 10 carbon atoms, preferably from 2 to 5 carbon atoms, within the oxyalkylene unit and at least one R6 is hydrogen;
R7 and RB7 which may be the same or different, are selected from alkyl, hydroxyalkyl, carboxyalkyl of up to 6 carbon atoms in each alkyl, and polyoxyalkylene of up to 10 carbon atoms; in addition R, and R. taken together with the nitrogen to which they are attached may represent N-heterocycle.
F, which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or lower alkyl ( C1_6 ); with the proviso that when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and n2 is 0, n' is 0;
n is 0 or 2;
nl is zero or 1;
n2 is zero or 1;
c y n' is at least 1 and preferably an integer from 2 to 12;
d is an integer from 1 or greater, generally from 1-50 and preferably 2-10.
The novel silicone-containing amidoamine compositions of the invention can be prepared as follows:
O
C~ OIt Rc R
s + D N--(CHz-}- 3 N
30 -lCI I3-)-- l~ n.I [3 nZ F- N I I 11 l; Re O
d II
CN-(CH=-)---N~~i _ 0 + RS- OH
R~~CIl3 n rnl B 2 F-N RRe c 0 d wherein:
Rlo is a silicone backbone chain as herein described to which at least one pyrrolidone containing carboxyl functional group or amidoamine derivative thereof is attached as hereinabove shown;
RS is hydrogen, lower alkyl (C,-6) or alkali metal;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl up to 6 carbon atoms each, cycloalkyl of up to 6 carbon atoms or polyoxyalkylene of up to 10 carbon atoms, preferably from 2 to 5 carbon atoms, within the oxyalkylene unit and at least one R. is hydrogen;
R, and R8, which may be the same or different, are selected from alkyl, hydroxyalkyl, carboxyalkyl of up to 6 carbon atoms in each alkyl, and polyoxyalkylene of up to 10 carbon atoms; in addition R, and R. taken together with the nitrogen to which they are attached may represent an N-heterocycle.
F, which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
B is -NRõ sulfur or oxygen, wherein R9 is hydrogen or lower alkyl; with the proviso that when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and n2 is 0, n' is 0;
n is 0 or 2;
n' is zero or 1;
n? is zero or 1;
n' is at least 1 and preferably an integer from 2 to 12;
d and D is an integer from 1 or greater, generally from 1-50 and preferably 2-10. The reactant ratio of the amine reactant to the carboxyl reactant on the silicon is preferably 1:1 but can be varied in ratio from 1:0.8 to 1:1.2.
Silicone-containing amidoamines of the invention are readily prepared by the above coupling reaction from the novel polysiloxane compositions of the present invention having one or more pyrrolidone containing functional carboxyl group(s) as hereinabove described.
The above coupling reaction for preparing the silicone-containing amidoamine compositions can be carried.
out neat or can be carried out in an inert solvent such as xylene, toluene, chlorobenzene or the like. While the equivalent weight of the silicone-containing amidoamine compositions is not critical, preferably the equivalent weight of such compositions are from about 500 to 1500.
The preparation of specific compositions of the invention is illustrated by the following specific examples which are provided herein for purposes of illustration only and are not intended to limit the scope therein.
Example 1 An alpha-omega diamino functional polysiloxane fluid obtained commercially under the designation Tegomer A-Si2120 from Goldschmidt Company is used in this example.
The amine content of the fluid is 3.5% which corresponds to a molecular weight of 91.4 grams of the above polysiloxane fluid (0.1 moles) is admixed with 26 grams (0.2 moles) of Itaconic Acid in a reaction vessel. Upon combination of the reactants, a heterogeneous mixture is formed. External heat is applied to the reaction vessel bringing the reaction mixture to a temperature of about 110 C, whereupon the reaction mixture becomes completely homogeneous while the temperature rises to 140 C.
After a heating period of 4 hours, a total of 7.5m1 of volatiles are collected. The acid value of the reaction mixture is 81.6 (theoretical 95.5) while the alkali number is nil, thus confirming that there is the presence of carboxyl groups on the product.
Example 2 An alpha, omega-Bis primary amino alkyl dimethyl polysiloxane fluid with an average molecular weight about 1579.5 and having the general formula:
CH~ i H3 CH1 HN- CH'CH'CH~ 81 O- Si O- Si CH~ CH' ~ CH~ NH
= ~ ~ 2 CH~ . CH3 CH 3 obtained commercially from Shin-Etsu under the designation X-22161A is used in this example.
WO 96/32432 PCT/US96l04990 A mixture of 994.5 grams of the above polysiloxane fluid (0.6296 moles) and 163.7 grams (1.25 moles) of Itaconic Acid is formed in a reaction vessel and heated (slowly to about 90 C at which point an exotherm occurs raising the reaction vessel temperature to 130 C and water starts to evolve.
The reaction mixture is heated to and maintained at a temperature of 140 C to 150 C for a period of 3 hours during which time about 20m1. of water and other volatiles are collected. A clear, yellow viscous liquid is formed having an alkali number of 0.
The mixture is then cooled to 90 C and 192.6 grams (an excess) of dimethylamino propylamine is admixed therewith. The temperature in the reaction vessel is increased to 170 C to 185 C and maintained at that temperature for an 4 additional hours during which time a total of 92 ml. of volatiles is collected.
The reaction mixture is then cooled to about 50 C
and subjected to a vacuum of 30mm. While the vacuum is slowly drawn to 3mm, the reaction vessel temperature is increased from 75 C to 150 C. The product residue collected from the reaction vessel has a 92% yield with an alkali number of 67 (theoretical alkali number is 57).
200.88 grams of the reaction product above (0.12 moles) is then admixed with 75.4 grams of 40% active phosphate ester halide reactant and a 2:1 mixture of propylene glycol and water to obtain a solution having 30%
solids. The phosphate ester halide reactant used is prepared by the reaction of 3 moles of epichlorohydrin and one mole of sodium dihydrogen phosphate.
The reaction admixture is heated for 4 hours at a temperature range of 75 C to 85 C whereupon a homogeneous, clear liquid solution is obtained having a NaCl content of 1.8% (theoretical NaCl is 1.86%).
The product formed when mixed with water produced a great deal of stable foam whereas the polysiloxane functional amino fluid used as a starting material in the example provided no foam when mixed with water.
Example 3 Another sample of a diamino polysiloxane fluid 5 such as used in example 2 is used in this example. The average molecular weight of the sample is 1729 which corresponds to a percent amine of 1.85%.
To 43.2 grams (0.025 moles) of the above siloxane fluid in a reaction vessel is added with mixing 6.5 grams 10 (0.05 moles) of Itaconic acid. The mixture is heated to 90 C whereupon an exotherm occurs raising the temperature to 130 C and resulting in a liquified viscous yellow mass.
The reaction mixture is heated to and maintained at a temperature of 135 -140 C for 3 hours while some volatiles 15 are collected and at which point the alkali number is zero.
There is then added to the reaction mixture 7.7 grams (0.075 moles, 50% excess) of dimethylamino propylamine (DMAPA) and the temperature is raised to 165 C
where it is held for four additional hours. The reaction mixture is subjected to vacuum stripping to remove excess DMAPA at a reaction vessel temperature of 125 C and a vacuum of 10mm. The alkali number ofthe reaction product residue is 54 (theoretical 52.9).
A combination of 21.2 grams (0.01 moles) of the reaction product above, 6.25 grams (0.0061 mole) of 40%
active phosphate ester halide reactant prepared as in example 2, 16 grams of isopropanol and 16 grams of water having a solid content of 40% is prepared in a reaction 2vessel. The combined reactants are heated to a temperature of 95 C for four-five hours at which time a clear yellow solution is obtained having a NaCl content of 2.4%
(theoretical 1.9%).
The product formed when added to water produces a great deal of stable foam.
F, which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
B is -NRõ sulfur or oxygen, wherein R9 is hydrogen or lower alkyl; with the proviso that when n is 0 and n2 is 1, n' is 1, when n is 2 and n2 is 1, n' is 0 or 1, and when n is 2 and n2 is 0, n' is 0;
n is 0 or 2;
n' is zero or 1;
n? is zero or 1;
n' is at least 1 and preferably an integer from 2 to 12;
d and D is an integer from 1 or greater, generally from 1-50 and preferably 2-10. The reactant ratio of the amine reactant to the carboxyl reactant on the silicon is preferably 1:1 but can be varied in ratio from 1:0.8 to 1:1.2.
Silicone-containing amidoamines of the invention are readily prepared by the above coupling reaction from the novel polysiloxane compositions of the present invention having one or more pyrrolidone containing functional carboxyl group(s) as hereinabove described.
The above coupling reaction for preparing the silicone-containing amidoamine compositions can be carried.
out neat or can be carried out in an inert solvent such as xylene, toluene, chlorobenzene or the like. While the equivalent weight of the silicone-containing amidoamine compositions is not critical, preferably the equivalent weight of such compositions are from about 500 to 1500.
The preparation of specific compositions of the invention is illustrated by the following specific examples which are provided herein for purposes of illustration only and are not intended to limit the scope therein.
Example 1 An alpha-omega diamino functional polysiloxane fluid obtained commercially under the designation Tegomer A-Si2120 from Goldschmidt Company is used in this example.
The amine content of the fluid is 3.5% which corresponds to a molecular weight of 91.4 grams of the above polysiloxane fluid (0.1 moles) is admixed with 26 grams (0.2 moles) of Itaconic Acid in a reaction vessel. Upon combination of the reactants, a heterogeneous mixture is formed. External heat is applied to the reaction vessel bringing the reaction mixture to a temperature of about 110 C, whereupon the reaction mixture becomes completely homogeneous while the temperature rises to 140 C.
After a heating period of 4 hours, a total of 7.5m1 of volatiles are collected. The acid value of the reaction mixture is 81.6 (theoretical 95.5) while the alkali number is nil, thus confirming that there is the presence of carboxyl groups on the product.
Example 2 An alpha, omega-Bis primary amino alkyl dimethyl polysiloxane fluid with an average molecular weight about 1579.5 and having the general formula:
CH~ i H3 CH1 HN- CH'CH'CH~ 81 O- Si O- Si CH~ CH' ~ CH~ NH
= ~ ~ 2 CH~ . CH3 CH 3 obtained commercially from Shin-Etsu under the designation X-22161A is used in this example.
WO 96/32432 PCT/US96l04990 A mixture of 994.5 grams of the above polysiloxane fluid (0.6296 moles) and 163.7 grams (1.25 moles) of Itaconic Acid is formed in a reaction vessel and heated (slowly to about 90 C at which point an exotherm occurs raising the reaction vessel temperature to 130 C and water starts to evolve.
The reaction mixture is heated to and maintained at a temperature of 140 C to 150 C for a period of 3 hours during which time about 20m1. of water and other volatiles are collected. A clear, yellow viscous liquid is formed having an alkali number of 0.
The mixture is then cooled to 90 C and 192.6 grams (an excess) of dimethylamino propylamine is admixed therewith. The temperature in the reaction vessel is increased to 170 C to 185 C and maintained at that temperature for an 4 additional hours during which time a total of 92 ml. of volatiles is collected.
The reaction mixture is then cooled to about 50 C
and subjected to a vacuum of 30mm. While the vacuum is slowly drawn to 3mm, the reaction vessel temperature is increased from 75 C to 150 C. The product residue collected from the reaction vessel has a 92% yield with an alkali number of 67 (theoretical alkali number is 57).
200.88 grams of the reaction product above (0.12 moles) is then admixed with 75.4 grams of 40% active phosphate ester halide reactant and a 2:1 mixture of propylene glycol and water to obtain a solution having 30%
solids. The phosphate ester halide reactant used is prepared by the reaction of 3 moles of epichlorohydrin and one mole of sodium dihydrogen phosphate.
The reaction admixture is heated for 4 hours at a temperature range of 75 C to 85 C whereupon a homogeneous, clear liquid solution is obtained having a NaCl content of 1.8% (theoretical NaCl is 1.86%).
The product formed when mixed with water produced a great deal of stable foam whereas the polysiloxane functional amino fluid used as a starting material in the example provided no foam when mixed with water.
Example 3 Another sample of a diamino polysiloxane fluid 5 such as used in example 2 is used in this example. The average molecular weight of the sample is 1729 which corresponds to a percent amine of 1.85%.
To 43.2 grams (0.025 moles) of the above siloxane fluid in a reaction vessel is added with mixing 6.5 grams 10 (0.05 moles) of Itaconic acid. The mixture is heated to 90 C whereupon an exotherm occurs raising the temperature to 130 C and resulting in a liquified viscous yellow mass.
The reaction mixture is heated to and maintained at a temperature of 135 -140 C for 3 hours while some volatiles 15 are collected and at which point the alkali number is zero.
There is then added to the reaction mixture 7.7 grams (0.075 moles, 50% excess) of dimethylamino propylamine (DMAPA) and the temperature is raised to 165 C
where it is held for four additional hours. The reaction mixture is subjected to vacuum stripping to remove excess DMAPA at a reaction vessel temperature of 125 C and a vacuum of 10mm. The alkali number ofthe reaction product residue is 54 (theoretical 52.9).
A combination of 21.2 grams (0.01 moles) of the reaction product above, 6.25 grams (0.0061 mole) of 40%
active phosphate ester halide reactant prepared as in example 2, 16 grams of isopropanol and 16 grams of water having a solid content of 40% is prepared in a reaction 2vessel. The combined reactants are heated to a temperature of 95 C for four-five hours at which time a clear yellow solution is obtained having a NaCl content of 2.4%
(theoretical 1.9%).
The product formed when added to water produces a great deal of stable foam.
Example 4 A lateral (pendant) amino functional silicone fluid having an average molecular weight of about 3720 obtained from Shin-Etsu under the product designation KE-864 is used in this example.
A mixture of 377 grams (0.1013 moles) of the silicone fluid and 13.2 grams (0.1013 moles) of Itaconic acid is formed in a reaction vessel and heated to a temperature of 160 C for about two hours.
A clear melt is formed having an acid number of 11.6 (theoretical 14.6).
Example 5 A pendant (lateral) amino functional silicone fluid having an average molecular weight of 4400 obtained from Shin-Etsu under the product designation KF865 is used in this example.
88 grams (0.02 moles) of the silicone fluid is admixed with 2.6 grams of Itaconic acid (0.02 moles) and heated to a temperature of 130 -140 C whereupon a clear melt is obtained and then continued heating for an additional two hours.
After heating for two hours, the reaction mixture is cooled to 70 C and 4.08 grams (an excess) of dimethylamino propyl amine (DMAPA) is admixed therewith.
The reaction mixture is then heated to a temperature of 165 C for four hours, cooled to 70 C and vacuum stripped at 30-10mm for three hours while slowly raising the temperature to 110 C.
The reaction product residue is a clear liquid having an alkali number of 12.3 (theoretical 12.2) and an acid number of 0. i.r. analysis confirms the presence of an amide linkage.
Example 6 A pendant (lateral) amino functional silicone fluid obtained from Shin-Etsu under the product designation KF 865 is used in this example. The silicone fluid has an amine value of 0.2219 percent which corresponds to an amine equivalent weight of 5675.
665.9 grams (0.1173 equiv. wt.) of the silicone fluid and 15.25 grams of Itaconic acid (0.1173 mole) are combined with 150 ml of xylene in a reaction vessel and heated to a temperature of 130 -140 C under reflux. After heating for 4 to 5 hours under reflux, 2.3 ml of water is removed (theory 2.1).
17.9 grams of dimethylpropyl amine (DMAPA) is then admixed with the reaction mixture and heated under reflux at a temperature of 160 - 170 C for a period of about 4 hours during which time an additional 2.1 grams of water is removed. The reaction mixture is cooled to about 70 C and vacuum stripped at 30-40mm to remove low boiling volatiles. A vacuum of 5-10 mm is then applied to the reaction mixture and the reaction vessel is heated for three hours at 140 C. The reaction product is a clear liquid having an alkali number of 9 (theoretical 9.55) which corresponds to an amine equivalent weight of 6233.
Example 7 This example illustrates an alternate procedure of preparing a polysiloxane composition having at least one pyrrolidone containing carboxyl functional group(s).
A mixture of 122.4 grams of octamethyl-cyclotetrasiloxane, 13.4 grams of tetramethylohsiloxane, 0.7 grams of activated charcoal and 0.07 grams concentrated sulfuric acid are charged into a reaction vessel and heated with agitation to 65 C for 24 hours. The mixture is filtered and the filtrate is subjected to reduced pressure at 70 C for 48 hours. A colorless liquid is obtained having a number average molecular weight of about 1580 which is terminated in silicon hydride as determined by NMR.
A solution of 15.8 grams (0.1 mole) of dimethyl itaconate in 30ml of methanol is added at ambient to a reaction vessel containing a solution of 5.7 grams (0.1 mole) alylamine in lOml methanol. Upon complete addition of the dimethyl itaconate, a mild exotherm is produced raising the reaction mixture temperature to 55 C. Following this, the reaction mixture is held at ref lux for 3 hours. The reaction mixture is stripped of solvent and the product (N-allyl 4 carbonmethoxy pyrrolidone) is isolated by distillation of 115 C. A colorless liquid is obtained in 85% yield.
158 grams of the silicone hydride terminated polysiloxane material prepared above is charged to a reaction vessel and iml of a 0.1N chloroplatinic acid solution in tetrahydrofurane (THF) is added thereto. The reaction mixture is heated to 90-95 C, the heat source is removed and 36.6 grams (0.2 Equivalents) of the itaconate/allylamine reaction product prepared above is added to the reaction vessel. After a brief induction period, the temperature of the mixture starts to rise slowly and the reaction temperature is controlled between 110-115 C by the rate of addition. Following complete addition of the pyrrolidone reaction product, the reaction mixture is heated at 120 C for 3 hours.
Analysis of the reaction product indicates complete absence of Silicone-Hydride absorption and allylic unsaturated is also absent. NMR analysis confirms that the resulting reaction product is an alpha-Omega capped carbomethoxy pyrrolidone containing silicone fluid.
Although some preferred embodiments have been described, many modifications and variations may be made thereto in light of the above teachings. It is therefore to be understood that the invention may be practiced otherwise than as specifically described and illustrated.
A mixture of 377 grams (0.1013 moles) of the silicone fluid and 13.2 grams (0.1013 moles) of Itaconic acid is formed in a reaction vessel and heated to a temperature of 160 C for about two hours.
A clear melt is formed having an acid number of 11.6 (theoretical 14.6).
Example 5 A pendant (lateral) amino functional silicone fluid having an average molecular weight of 4400 obtained from Shin-Etsu under the product designation KF865 is used in this example.
88 grams (0.02 moles) of the silicone fluid is admixed with 2.6 grams of Itaconic acid (0.02 moles) and heated to a temperature of 130 -140 C whereupon a clear melt is obtained and then continued heating for an additional two hours.
After heating for two hours, the reaction mixture is cooled to 70 C and 4.08 grams (an excess) of dimethylamino propyl amine (DMAPA) is admixed therewith.
The reaction mixture is then heated to a temperature of 165 C for four hours, cooled to 70 C and vacuum stripped at 30-10mm for three hours while slowly raising the temperature to 110 C.
The reaction product residue is a clear liquid having an alkali number of 12.3 (theoretical 12.2) and an acid number of 0. i.r. analysis confirms the presence of an amide linkage.
Example 6 A pendant (lateral) amino functional silicone fluid obtained from Shin-Etsu under the product designation KF 865 is used in this example. The silicone fluid has an amine value of 0.2219 percent which corresponds to an amine equivalent weight of 5675.
665.9 grams (0.1173 equiv. wt.) of the silicone fluid and 15.25 grams of Itaconic acid (0.1173 mole) are combined with 150 ml of xylene in a reaction vessel and heated to a temperature of 130 -140 C under reflux. After heating for 4 to 5 hours under reflux, 2.3 ml of water is removed (theory 2.1).
17.9 grams of dimethylpropyl amine (DMAPA) is then admixed with the reaction mixture and heated under reflux at a temperature of 160 - 170 C for a period of about 4 hours during which time an additional 2.1 grams of water is removed. The reaction mixture is cooled to about 70 C and vacuum stripped at 30-40mm to remove low boiling volatiles. A vacuum of 5-10 mm is then applied to the reaction mixture and the reaction vessel is heated for three hours at 140 C. The reaction product is a clear liquid having an alkali number of 9 (theoretical 9.55) which corresponds to an amine equivalent weight of 6233.
Example 7 This example illustrates an alternate procedure of preparing a polysiloxane composition having at least one pyrrolidone containing carboxyl functional group(s).
A mixture of 122.4 grams of octamethyl-cyclotetrasiloxane, 13.4 grams of tetramethylohsiloxane, 0.7 grams of activated charcoal and 0.07 grams concentrated sulfuric acid are charged into a reaction vessel and heated with agitation to 65 C for 24 hours. The mixture is filtered and the filtrate is subjected to reduced pressure at 70 C for 48 hours. A colorless liquid is obtained having a number average molecular weight of about 1580 which is terminated in silicon hydride as determined by NMR.
A solution of 15.8 grams (0.1 mole) of dimethyl itaconate in 30ml of methanol is added at ambient to a reaction vessel containing a solution of 5.7 grams (0.1 mole) alylamine in lOml methanol. Upon complete addition of the dimethyl itaconate, a mild exotherm is produced raising the reaction mixture temperature to 55 C. Following this, the reaction mixture is held at ref lux for 3 hours. The reaction mixture is stripped of solvent and the product (N-allyl 4 carbonmethoxy pyrrolidone) is isolated by distillation of 115 C. A colorless liquid is obtained in 85% yield.
158 grams of the silicone hydride terminated polysiloxane material prepared above is charged to a reaction vessel and iml of a 0.1N chloroplatinic acid solution in tetrahydrofurane (THF) is added thereto. The reaction mixture is heated to 90-95 C, the heat source is removed and 36.6 grams (0.2 Equivalents) of the itaconate/allylamine reaction product prepared above is added to the reaction vessel. After a brief induction period, the temperature of the mixture starts to rise slowly and the reaction temperature is controlled between 110-115 C by the rate of addition. Following complete addition of the pyrrolidone reaction product, the reaction mixture is heated at 120 C for 3 hours.
Analysis of the reaction product indicates complete absence of Silicone-Hydride absorption and allylic unsaturated is also absent. NMR analysis confirms that the resulting reaction product is an alpha-Omega capped carbomethoxy pyrrolidone containing silicone fluid.
Although some preferred embodiments have been described, many modifications and variations may be made thereto in light of the above teachings. It is therefore to be understood that the invention may be practiced otherwise than as specifically described and illustrated.
Claims (16)
1. A polysiloxane composition having the formula wherein:
R1, which can be the same or different, is selected from R2, H, a primary amine containing group or a pyrrolidone containing group of the general formula:
wherein at least one R1 is a pyrrolidone containing carboxyl functional group or ester derivative thereof as shown; R2 is as defined below; R. is hydrogen, C1 to C6 alkyl or alkali metal; F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; n is 0 or 2; n1 is 0 or 1; n2 is 0 or 1; and B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or C1 to C6 alkyl; with the proviso that when n is 0 and n2 is 1, n1 is 1, when n is 2 and n2 is 1, n1 is 0 or 1 and when n is 2 and n2 is 0, n1 is 0;
R2 can be the same or different and is selected from alkyl, aryl or alkenyl;
R3 and R4, which may be the same or different are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene or alkenyl;
a is an integer from 0 to 50,000; and b is an integer from 0 to 100;
R1, which can be the same or different, is selected from R2, H, a primary amine containing group or a pyrrolidone containing group of the general formula:
wherein at least one R1 is a pyrrolidone containing carboxyl functional group or ester derivative thereof as shown; R2 is as defined below; R. is hydrogen, C1 to C6 alkyl or alkali metal; F, which can be the same or different, is linear or branched alkylene of 1-12 carbon atoms; n is 0 or 2; n1 is 0 or 1; n2 is 0 or 1; and B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or C1 to C6 alkyl; with the proviso that when n is 0 and n2 is 1, n1 is 1, when n is 2 and n2 is 1, n1 is 0 or 1 and when n is 2 and n2 is 0, n1 is 0;
R2 can be the same or different and is selected from alkyl, aryl or alkenyl;
R3 and R4, which may be the same or different are selected from alkyl, aryl, capped or uncapped polyoxyalkylene, alkaryl, aralkylene or alkenyl;
a is an integer from 0 to 50,000; and b is an integer from 0 to 100;
2. The polysiloxane composition as claimed in claim 1, wherein R5 is hydrogen or C1 to C6 alkyl.
3. The polysiloxane composition as claimed in claim 1, wherein each R1 is R2 or a pyrrolidone containing carboxyl functional group or ester derivative thereof.
4. The polysiloxane composition as claimed in claim 1, wherein at least one terminally linked R1 group is a pyrrolidone containing carboxyl functional group or ester derivative thereof.
5. The polysiloxane composition as claimed in claim 1, wherein R3 and R4 are methyl and a is at least 1.
6. The polysiloxane composition as claimed in claim 1, wherein both terminal R1 groups are R2 and a and b are each at least 1.
7. The polysiloxane composition as claimed in claim 1, wherein R2, R3 and R4 are methyl.
8. The polysiloxane composition as claimed in claim 1, wherein B is -NR9, n1 is 1, n2 is 1 and n is 0.
9. A method for preparing polysiloxane compositions containing at least one pyrrolidone containing carboxyl functional group and/or the ester derivatives thereof, which comprises reacting an organosilicone composition having at least one primary amine functional group with itaconic acid or an ester derivative thereof at an elevated temperature for a time sufficient to react substantially all the itaconic acid or ester derivative thereof with the functional primary amine group(s) on the silicone composition to form an organosilicone composition having at least one pyrrolidone containing carboxyl functional group.
10. The method for preparing polysiloxane compositions as claimed in claim 9, wherein said organosilicone composition having at least one primary amine functional group forms a homogenous mixture with said itaconic acid or ester derivative thereof.
11. The method for preparing polysiloxane compositions as claimed in claim 9, wherein reaction of said organosilicone composition having at least one primary amine functional group and itaconic acid or ester is carried out at a temperature from about 90 C to about 130 C.
12. The method for preparing polysiloxane compositions as claimed in claim 9, wherein about a stoichiometric amount of itaconic acid or its ester derivative per functional primary group(s) is employed in said reaction.
13. The method for preparing polysiloxane compositions as claimed in claim 9, wherein said organosilicone composition has one or more terminal primary amine functional groups.
14. The method for preparing polysiloxane compositions as claimed in claim 9, wherein said organosilicone composition has one or more lateral primary amine functional groups.
15. A method for preparing polysiloxane composition containing at least one ester derivative of pyrrolidone containing functional group which comprises reacting by hydrosilylation an organosilicone fluid or composition having one or more hydrogen atoms directly bonded to a terminal silicon atom or hydrogen atoms directly bonded to a lateral silicon atom on the polysiloxane chain with an N-alkenyl carboalkyoxy compound containing a pyrrolidone group in the presence of a noble metal catalyst at an elevated temperature for a time sufficient to react the hydrogen atom(s) directly bonded to a silicon atom on said silicone fluid with the N-alkenyl carboalkyoxy compound containing the pyrrolidone group.
16. Silicone-modified amidoamine composition having the formula:
wherein:
R10 is a silicone backbone chain to which at least one pyrrolidone containing amidoamine derivative of a carboxyl functional group as shown is attached;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl of up to 6 carbon atoms each, or cycloalkyl of up to 6 carbon atoms, or polyoxyalkylene of up to 10 carbon atoms within the oxyalkylene unit;
R7 and R8, which may be the same or different, are selected from alkyl, hydroxyalkyl, cycloalkyl or carboxyalkyl of up to 6 carbon atoms in each alkyl or polyoxalkylene of up to 10 carbon atoms;
or in addition R7 and R8 taken together with the nitrogen to which they are attached can represent an N-heterocycle;
F which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
n is 0 or 2;
n1 is 0 or 1;
n2 is 0 or 1;
n3 is at least 1;
B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or C1 to C6 alkyl; with the proviso that when n is 0 and n2 is 1, n1 is 1, when n is 2 and n2 is 1, n1 is 0 or 1 and when n is 2 and n 2 is 0, n1 is 0; and d is at least one.
wherein:
R10 is a silicone backbone chain to which at least one pyrrolidone containing amidoamine derivative of a carboxyl functional group as shown is attached;
R6 is hydrogen or alkyl, hydroxyalkyl or alkenyl of up to 6 carbon atoms each, or cycloalkyl of up to 6 carbon atoms, or polyoxyalkylene of up to 10 carbon atoms within the oxyalkylene unit;
R7 and R8, which may be the same or different, are selected from alkyl, hydroxyalkyl, cycloalkyl or carboxyalkyl of up to 6 carbon atoms in each alkyl or polyoxalkylene of up to 10 carbon atoms;
or in addition R7 and R8 taken together with the nitrogen to which they are attached can represent an N-heterocycle;
F which can be the same or different is linear or branched alkylene of 1-12 carbon atoms;
n is 0 or 2;
n1 is 0 or 1;
n2 is 0 or 1;
n3 is at least 1;
B is -NR9, sulfur or oxygen, wherein R9 is hydrogen or C1 to C6 alkyl; with the proviso that when n is 0 and n2 is 1, n1 is 1, when n is 2 and n2 is 1, n1 is 0 or 1 and when n is 2 and n 2 is 0, n1 is 0; and d is at least one.
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US08/420,746 | 1995-04-12 | ||
US08/420,746 US5596061A (en) | 1993-12-28 | 1995-04-12 | Organosilicone having a carboxyl functional group thereon |
PCT/US1996/004990 WO1996032432A1 (en) | 1995-04-12 | 1996-04-11 | Organosilicone having a carboxyl functional group thereon |
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