WO2008010459A1 - Ingrédient catalyseur au titane solide, catalyseur de polymérisation d'oléfine, et procédé de polymérisation d'oléfine - Google Patents
Ingrédient catalyseur au titane solide, catalyseur de polymérisation d'oléfine, et procédé de polymérisation d'oléfine Download PDFInfo
- Publication number
- WO2008010459A1 WO2008010459A1 PCT/JP2007/063972 JP2007063972W WO2008010459A1 WO 2008010459 A1 WO2008010459 A1 WO 2008010459A1 JP 2007063972 W JP2007063972 W JP 2007063972W WO 2008010459 A1 WO2008010459 A1 WO 2008010459A1
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- WIPO (PCT)
- Prior art keywords
- group
- catalyst component
- carbon atoms
- compound
- polymerization
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- 239000003054 catalyst Substances 0.000 title claims abstract description 136
- 239000010936 titanium Substances 0.000 title claims abstract description 90
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 83
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 80
- 239000007787 solid Substances 0.000 title claims abstract description 71
- 150000001336 alkenes Chemical class 0.000 title claims abstract description 62
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000004615 ingredient Substances 0.000 title abstract description 7
- 239000002685 polymerization catalyst Substances 0.000 claims abstract description 18
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 14
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 13
- 150000002367 halogens Chemical class 0.000 claims abstract description 13
- 150000002902 organometallic compounds Chemical class 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 72
- 125000004432 carbon atom Chemical group C* 0.000 claims description 37
- 125000004122 cyclic group Chemical group 0.000 claims description 31
- 150000002430 hydrocarbons Chemical group 0.000 claims description 30
- 125000004185 ester group Chemical group 0.000 claims description 28
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 8
- 125000005843 halogen group Chemical group 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 125000006841 cyclic skeleton Chemical group 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000004429 atom Chemical group 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 3
- 239000011949 solid catalyst Substances 0.000 claims 1
- -1 ester compound Chemical class 0.000 abstract description 83
- 238000009826 distribution Methods 0.000 abstract description 37
- 229920000098 polyolefin Polymers 0.000 abstract description 30
- 229920000642 polymer Polymers 0.000 description 32
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- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 5
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
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- 238000003756 stirring Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
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- 150000001298 alcohols Chemical class 0.000 description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 150000001733 carboxylic acid esters Chemical class 0.000 description 4
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 238000005227 gel permeation chromatography Methods 0.000 description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 4
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 4
- 150000003377 silicon compounds Chemical class 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 4
- MEPSBRTXOHFWCF-UHFFFAOYSA-N (2-cyclohexyl-1,3-dimethoxypropan-2-yl)cyclohexane Chemical compound C1CCCCC1C(COC)(COC)C1CCCCC1 MEPSBRTXOHFWCF-UHFFFAOYSA-N 0.000 description 3
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 description 3
- RGHIYOCUMCUWAQ-UHFFFAOYSA-N 3,3-bis(methoxymethyl)-2,5-dimethylhexane Chemical compound COCC(COC)(CC(C)C)C(C)C RGHIYOCUMCUWAQ-UHFFFAOYSA-N 0.000 description 3
- BHPDSAAGSUWVMP-UHFFFAOYSA-N 3,3-bis(methoxymethyl)-2,6-dimethylheptane Chemical compound COCC(C(C)C)(COC)CCC(C)C BHPDSAAGSUWVMP-UHFFFAOYSA-N 0.000 description 3
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- ZVGIBQMBZHWERX-UHFFFAOYSA-N [2-(cyclohexylmethyl)-3-methoxy-2-(methoxymethyl)propyl]cyclohexane Chemical compound C1CCCCC1CC(COC)(COC)CC1CCCCC1 ZVGIBQMBZHWERX-UHFFFAOYSA-N 0.000 description 3
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
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Classifications
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- C—CHEMISTRY; METALLURGY
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Definitions
- Solid titanium catalyst component Solid titanium catalyst component, catalyst for olefin polymerization, and method for olefin polymerization
- the present invention relates to a solid titanium catalyst component preferably used for polymerization of ⁇ -olefin having 3 or more carbon atoms.
- the present invention also relates to an polyolefin polymerization catalyst comprising the solid titanium catalyst component.
- the present invention relates to a method for polymerizing olefin using the above olefin polymerization catalyst.
- olefin polymerization catalyst a tetrachloride salt referred to as a Cidara one-natta catalyst.
- a catalyst containing titanium or titanium trichloride, a catalyst comprising a solid titanium catalyst component made of magnesium, titanium, halogen and an electron donor and an organometallic compound are widely known.
- the latter catalyst exhibits high activity in the polymerization of ⁇ -olefins such as propylene and 1-butene in addition to ethylene.
- ⁇ -olefins such as propylene and 1-butene
- the obtained 1-year-old refin polymer may have high stereoregularity.
- a solid titanium catalyst component carrying an electron donor selected from carboxylic acid esters, typically phthalate esters, and an aluminum alkyl as a promoter component is used.
- excellent polymerization activity and stereospecificity are exhibited when a catalyst comprising a compound and a key compound having at least one Si—OR (wherein R is a hydrocarbon group) is used.
- No. 57-63310 Patent Document 1 is reported.
- a polymer obtained by using the above catalyst often has a narrow molecular weight distribution as compared with a polymer obtained by a Tiedara one-natta catalyst.
- a polymer with a narrow molecular weight distribution It is known that there is a tendency of “low properties”, “low melt tension”, “poor formability”, “slightly low rigidity”, and the like.
- various high-speed molding technologies such as high-speed stretching technology for the purpose of improving the productivity of stretched films are evolving from the viewpoint of productivity improvement and cost reduction.
- Patent Document 7 in Japanese Patent Publication No. 2005-517746 (Patent Document 7), in Patent Documents 4 to 6, a catalyst containing a carboxylic acid ester having a divalent or higher valent ester group has a polyolefin having a broad molecular weight distribution. It is disclosed to give.
- Patent Document 1 JP-A-57-63310
- Patent Document 2 Japanese Patent Laid-Open No. 5-170843
- Patent Document 3 Japanese Patent Laid-Open No. 3-7703
- Patent Document 4 Pamphlet of International Publication No. 01Z057099
- Patent Document 5 International Publication No. 00Z63261 Pamphlet
- Patent Document 6 Pamphlet of International Publication No. 02Z30998
- Patent Document 7 Special Table 2005-517746
- the above catalyst has no effect of widening the molecular weight distribution of the olefin polymer.
- the catalyst was sufficient to broaden the molecular weight distribution by increasing the low molecular weight component.
- these catalysts have been evaluated in the field where the melt tension of the polyolefin polymer is not sufficiently improved, and from the viewpoint of cost reduction, the molecular weight distribution can be reduced by a simpler process. There is a long-awaited appearance of a catalyst that can produce a modified olefin polymer!
- an object of the present invention is to provide a catalyst component and a catalyst capable of easily producing an olefin polymer suitable for high-speed stretching and high-speed molding with a wide molecular weight distribution and high melt tension. .
- the solid titanium catalyst component (I) of the present invention comprises:
- ⁇ is an integer of 5 to 10.
- a plurality of R 1 are each independently a monovalent hydrocarbon group having 1 to 20 carbon atoms.
- a plurality of R's are each independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogen atom, a nitrogen-containing group, an oxygen-containing group, a phosphorus-containing group, a halogen-containing group and a silicon-containing group.
- Basic force An atom or group selected, which may be bonded to each other to form a ring.
- R is the backbone of Yogu said ring optionally contains double bonds in the skeleton of the ring formed by bonding to each other, if it contains C a to OCOR 1 is attached two or more
- the number of carbon atoms constituting the ring skeleton is 5 to 10.
- the cyclic skeleton is preferably composed of 6 carbon atoms.
- the cyclic polyvalent ester group-containing compound (a) is preferably a compound represented by the following formula (la).
- n is an integer of 5 to 10.
- the single bond in the cyclic skeleton (except for the C a — C a bond and the C a — C b bond) may be replaced with a double bond.
- a plurality of R 1 s are each independently a monovalent hydrocarbon group having 1 to 20 carbon atoms.
- a plurality of Rs are each independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogen atom, a nitrogen-containing group, an oxygen-containing group, a phosphorus-containing group, a halogen-containing group, and a silicon-containing group.
- R contains two C a in the backbone of Yogu said ring optionally contains double bonds in the skeleton of the ring formed by bonding to each other, forming a ring skeleton
- the number of carbon atoms is 5 ⁇ : LO is there. ].
- the catalyst for olefin polymerization of the present invention is:
- the solid titanium catalyst component (I) is the solid titanium catalyst component (I).
- the catalyst for olefin polymerization of the present invention may further contain an electron donor (III).
- the olefin polymerization method of the present invention is characterized in that olefin polymerization is carried out in the presence of the olefin polymerization catalyst.
- the solid titanium catalyst component, the olefin polymerization catalyst, and the olefin polymerization method of the present invention are suitable for producing an olefin polymer having high stereoregularity and a wide molecular weight distribution with high activity. .
- an olefin polymer having excellent rigidity in addition to moldability such as high-speed stretchability and high-speed moldability, for example. Can be expected to be manufacturable.
- FIG. 1 is a graph showing the relationship between the amount of hydrogen added and MFR in the production of the olefin polymer of Example.
- solid titanium catalyst component (I) the catalyst for olefin polymerization and the method for producing the olefin polymer according to the present invention will be described in more detail.
- the solid titanium catalyst component (I) according to the present invention is characterized in that it contains titanium, magnesium, halogen and a cyclic polyvalent ester group-containing compound (a).
- the cyclic polyvalent ester group-containing compound (a) is represented by the following formula (1).
- n is an integer of 5 to 10, preferably an integer of 5 to 7, and particularly preferably 6.
- C a represents a carbon atom.
- C a — C a and C a — C b are C— C.
- a plurality of R 1 s each independently has 1 to 20, preferably 1 to 10, more preferably 2 to 8, more preferably 4 to 8, particularly preferably 4 to 6 carbon atoms.
- the hydrocarbon group include ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, hexyl group, heptyl group, octyl group, 2-ethylhexyl group, decyl group, dodecyl group, Examples include a tetradecyl group, a hexadecyl group, an octadecyl group, and an eicosyl group.
- an n-butyl group, an isobutyl group, a hexyl group, and an octyl group are preferable, and an n-butyl group and an isobutyl group are preferable.
- a plurality of R's are each independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, a halogen atom, a nitrogen-containing group, an oxygen-containing group, a phosphorus-containing group, a halogen-containing group, and a silicon-containing group
- a hydrocarbon group having 1 to 20 carbon atoms is preferable as R other than a hydrogen atom.
- the hydrocarbon group having 1 to 20 carbon atoms include a methyl group, an ethyl group, and n- Propyl group, iso-propyl group, n-butyl group, iso-butyl group, sec-butyl group, n-pentyl group, cyclopentyl group, n-hexyl group, cyclohexyl group, butyl group, phenyl group, Examples thereof include an aliphatic hydrocarbon group such as an octyl group, an alicyclic hydrocarbon group, and an aromatic hydrocarbon group.
- R may be bonded to each other to form a ring.
- R may be bonded to each other.
- the ring skeleton may include a double bond. during, if it contains C a to OCOR 1 is attached two or more, the number of carbon atoms forming the ring backbone is 5-10.
- Examples of such a ring skeleton include a norbornane skeleton and a tetracyclododecene skeleton.
- a plurality of Rs may be a carbocyclic group-containing group such as a carboxylic acid ester group, an alkoxy group, a siloxy group, an aldehyde group, an acetyl group, or an oxycarbonylalkyl group. Preferably contains at least one hydrocarbon group.
- a compound in which R is a hydrocarbon group is preferable because a solid titanium catalyst component having high activity and stereoregularity tends to be obtained.
- the compound is at least one group other than a hydrogen atom, a broad molecular weight distribution is intact, with higher activity, more stereoregular It is preferable because of its high properties and the ability to obtain an olefin polymer.
- the compound having a diester structure as described above has isomers such as cis and trans derived from a plurality of OCOR 1 groups in Formula 1, and any structure meets the object of the present invention.
- the content of the trans isomer is higher. The higher the content of the trans isomer, the higher the activity only by the effect of broadening the molecular weight distribution and the higher the stereoregularity of the resulting polymer.
- the cyclic polyvalent ester group-containing compound as (a) is bonded to a substituent to a carbon adjacent to C a, a compound represented by the following formula (la) is preferred for Rukoto is preferred instrument JP ,.
- R bonded directly to C b at least one is a group other than a hydrogen atom compounds, broad molecular weight distribution is intact, with higher activity, more stereoregular highly Orefu in polymer Preferred in terms of obtaining ⁇ .
- Etc. can be mentioned as a preferable example.
- These compounds may be used alone or in combination of two or more. Further, these cyclic polyvalent ester group-containing compounds (a) may be used in combination with a catalyst component (b) or a catalyst component (c) described later as long as the object of the present invention is not impaired.
- the cyclic polyvalent ester group-containing compound (a) may be formed in the process of preparing the solid titanium catalyst component (I). For example, when preparing the solid titanium catalyst component (I), a step of substantially contacting the carboxylic anhydride or carboxylic dihalide corresponding to the catalyst component (a) and the corresponding polyol is provided. Thus, the cyclic polyvalent ester group-containing compound (a) may be contained in the solid titanium catalyst component. [0057] In the method for producing an olefin polymer of the present invention, a polymer having a wide molecular weight distribution can be obtained.
- the cyclic hydrocarbon structure is known to form various three-dimensional structures such as a chair type and a boat type. Furthermore, if the cyclic structure has a substituent, the possible variation of the three-dimensional structure is further increased. In addition, if the C a — C a bond and the C a — C b bond linking a plurality of ester groups (OCOR 1 group) are single bonds, the possible three-dimensional norelation increases. The ability to take such a variety of three-dimensional structures leads to the formation of a variety of active species on the solid titanium catalyst component (I).
- olefin polymers having various molecular weights can be produced at the same time, that is, broad-olefin polymers having a molecular weight distribution are produced. be able to.
- a magnesium compound and a titanium compound are used in addition to the cyclic polyvalent ester group-containing compound (a).
- Magnesium halides such as magnesium chloride and magnesium bromide
- Alkoxy magnesium halides such as methoxy magnesium chloride, ethoxy magnesium chloride, phenoxy magnesium chloride;
- Alkoxymagnesium such as ethoxymagnesium, isopropoxymagnesium, butoxymagnesium, 2-ethylhexoxymagnesium; magnesium carboxylates such as magnesium stearate
- These magnesium compounds may be used alone or in combination of two or more. These magnesium compounds may be complex compounds with other metals, double compounds, or mixtures with other metal compounds.
- magnesium compounds containing halogen are preferred.
- Magnesium halide particularly magnesium chloride, is preferably used.
- alkoxymagnesium such as ethoxymagnesium is also preferably used.
- the magnesium compound is Other materials may be derived, for example, those obtained by contacting an organomagnesium compound such as a Grignard reagent with titanium halide, silicon halide, halogenated alcohol or the like.
- titanium compounds include general formulas
- the tetravalent titanium compound shown by can be mentioned. More specifically,
- Titanium tetrahalides such as TiCl and TiBr
- Trihalogenated alkoxytitanium such as Br
- Dihalogenated alkoxytitanium such as Ti (OCH) CI, Ti (OC H) CI;
- Monohalogenated alkoxy such as Ti (OCH) Cl, Ti (0-n-C H) Cl, Ti (OC H) Br
- Tetraal such as Ti (OCH), Ti (OC H), Ti (OC H), Ti (0-2-ethylhexyl)
- titanium tetrachloride is particularly preferred. These titanium compounds may be used alone or in combination of two or more.
- Examples of the magnesium compound and titanium compound as described above may also include compounds described in detail in Patent Document 1, Patent Document 2, and the like.
- (P-1) A solid adduct comprising a magnesium compound and a catalyst component (b), a cyclic polyvalent ester group-containing compound (a), and a liquid titanium compound coexist in an inert hydrocarbon solvent. Below, contact method in suspension.
- (P-2) A solid adduct comprising a magnesium compound and a catalyst component (b), a cyclic polyvalent ester group-containing compound (a), and a titanium compound in a liquid state are contacted in several steps. How to let
- the preferred reaction temperature is in the range of -30 ° C to 150 ° C, more preferably -25 ° C to 130 ° C, and even more preferably 25 to 120 ° C.
- the production of the above solid titanium catalyst component can be carried out in the presence of a known medium, if necessary.
- the medium include aromatic hydrocarbons such as toluene having a slight polarity, and known aliphatic hydrocarbons such as heptane, octane, decane, and cyclohexane, and alicyclic hydrocarbon compounds. Among them, aliphatic hydrocarbons are preferable examples.
- the catalyst component (b) used for the formation of the above solid adduct or liquid magnesium compound a known compound capable of solubilizing the above magnesium compound in a temperature range of about room temperature to 300 ° C is preferred.
- a known compound capable of solubilizing the above magnesium compound in a temperature range of about room temperature to 300 ° C is preferred.
- alcohol, aldehyde, amine, carboxylic acid and a mixture thereof are preferable. Examples of these compounds include compounds described in detail in Patent Document 1 and Patent Document 2.
- alcohols having the above-mentioned magnesium compound soluble ability include methanol, ethanol, propanol, butanol, isobutanol, ethylene glycol, 2-methylpentanol, 2-ethylbutanol, aliphatic alcohols such as n-heptanol, n-octanol, 2-ethylhexanol, decanol, dodecanol; Cycloaliphatic alcohols such as cyclohexanol and methylcyclohexanol; aromatic alcohols such as benzyl alcohol and methylbenzyl alcohol; aliphatic alcohols having an alkoxy group such as n-butyl cellosolve
- Examples of the carboxylic acid include organic carboxylic acids having 7 or more carbon atoms such as strong prillic acid and 2-ethylhexanoic acid.
- Examples of the aldehyde include aldehydes having 7 or more carbon atoms such as capric aldehyde and 2-ethylhexyl aldehyde.
- Examples of the amine include amines having 6 or more carbon atoms such as heptylamine, octylamine, noramine, laurylamine, 2-ethylhexylamine and the like.
- the above alcohols are preferable, and ethanol, propanolol, butanol, isobutanol, hexanol, 2-ethynolehexanol, defanol and the like are particularly preferable.
- the amount of the magnesium compound and the catalyst component (b) used in preparing the solid adduct or the liquid magnesium compound varies depending on the type, contact conditions, etc.
- the compound is used in an amount of 0.1 to 20 mol Z liter, preferably 0.5 to 5 mol Z liter per unit volume of the catalyst component (b).
- a medium inert to the solid adduct can be used in combination.
- Preferred examples of the medium include known hydrocarbon compounds such as heptane, octane and decane.
- the composition ratio of the obtained solid adduct or the magnesium compound in the liquid state to the catalyst component) varies depending on the type of compound used and cannot be defined unconditionally.
- the catalyst component (b) is preferably at least 2.0 moles, more preferably at least 2.2 moles, even more preferably at least 2.6 moles, particularly preferably at least 2.7 moles relative to moles. The range is 5 mol or less.
- the solid titanium catalyst component (I) comprises sardine, an aromatic carboxylic acid ester and a compound having two or more ether bonds via Z or a plurality of carbon atoms (hereinafter referred to as “catalyst component (c)”. ) May be included. If the solid titanium catalyst component (I) of the present invention contains the catalyst component (c), the activity and stereoregularity may be enhanced, and the molecular weight distribution may be further broadened.
- catalyst component (c) known aromatic carboxylic acid esters and polyether compounds, which have been preferably used in conventional olefin polymerization catalysts, such as the above-mentioned Patent Document 2 and JP-A 200-354714, are disclosed. Can be used without limitation.
- aromatic carboxylic acid ester examples include aromatic carboxylic acid monoesters such as benzoic acid esters and toluic acid esters, and aromatic polyvalent carboxylic acid esters such as phthalic acid esters. It is done. Of these, phthalic acid esters, which are preferred for aromatic polyvalent carboxylic acid esters, are more preferred. As the phthalic acid esters, phthalic acid alkyl esters such as ethyl phthalate, n-butyl phthalate, isobutyl phthalate, hexyl phthalate and heptyl phthalate are preferable, and diisobutyl phthalate is particularly preferable.
- polyether compound is more specifically a compound represented by the following formula (3).
- m is an integer of l ⁇ m ⁇ 10, more preferably an integer of 3 ⁇ m ⁇ 10, and R U to R 36 are each independently a hydrogen atom, Alternatively, a substituent having at least one element selected from carbon, hydrogen, oxygen, fluorine, chlorine, bromine, iodine, nitrogen, sulfur, phosphorus, boron, and key element.
- a plurality of R 11 and R 12 may be the same or different. Any R U to R 36 , preferably R 11 and R 12 may jointly form a ring other than a benzene ring.
- 2-substituted dialkoxypropanes such as 2-cyclohexyl-2-cyclohexylmethyl-1,3-dimethoxypropane,
- Gianolecoxynolecans such as
- Dialkoxycycloalkane such as
- 1,3-diethers are preferred, especially 2-isopropyl-2-isobutyl-1,3-dimethoxypropane, 2,2-diisobutyl-1,3-dimethoxypropane, 2-isopropyl -2-Isopentyl-1,3-dimethoxypropane, 2,2-dicyclohexyl-1,3-dimethoxypropane and 2,2-bis (cyclohexylmethyl) 1,3-dimethoxypropane are preferred!
- the cyclic polyvalent ester group-containing compound (a), the catalyst component (b), and the catalyst component (c) as described above may be considered to belong to a component called an electron donor by those skilled in the art.
- the above-mentioned electron donor component has the effect of increasing the stereoregularity of the obtained polymer while maintaining the high activity of the catalyst, the effect of controlling the composition distribution of the obtained copolymer, the particle size of the catalyst particles, It is known to show an aggregating agent effect for controlling the particle size.
- the cyclic polyvalent ester group-containing compound (a) of the present invention also has an effect that the molecular weight distribution can be further controlled by the electron donor.
- the halogen Z titanium (atomic ratio) (that is, the number of moles of halogen atoms and the number of moles of Z titanium atoms) is 2 to 100, preferably Is preferably 4 to 90,
- Cyclic polyvalent ester group-containing compound (a) Z titanium (molar ratio) that is, the number of moles of cyclic polyvalent ester group-containing compound (a) Z number of moles of titanium atom
- Cyclic polyvalent ester group-containing compound (a) Z titanium (molar ratio) that is, the number of moles of cyclic polyvalent ester group-containing compound (a) Z number of moles of titanium atom
- Catalyst component (b) or catalyst component (c) is catalyst component (b) Z titanium atom (molar ratio) is preferably 0 to: LOO, preferably 0 to: LO.
- the magnesium Z titanium (atomic ratio) (that is, the number of moles of magnesium atoms and the number of moles of Z titanium atoms) is 2 to 100, preferably 4 to 50.
- the catalyst component (b) and the catalyst component (c) is preferably cyclic polyvalent.
- the valent ester group-containing compound (a) is not more than 20% by weight, more preferably not more than 10% by weight, based on 100% by weight.
- the olefin polymerization catalyst according to the present invention comprises:
- Solid titanium catalyst component (I) according to the present invention, and
- organometallic compound catalyst component (II) a compound containing a Group 13 metal, such as an organoaluminum compound, a complex alkyl compound of a Group 1 metal and aluminum, a Group 2 metal organometallic compound, etc. Can be used. Of these, organoaluminum compounds are preferred.
- organometallic compound catalyst component (i) examples include the known EP585869A1 and the like.
- Preferable examples include organometallic compound catalyst components described in the literature.
- the olefin polymerization catalyst of the present invention may contain the above-described catalyst component (III) together with the above-mentioned organometallic compound catalyst component ( ⁇ ) as necessary.
- the catalyst component (III) is preferably an organic silicon compound. Examples of the organic silicon compound include compounds represented by the following general formula (4).
- R and R ′ are hydrocarbon groups, and n is an integer of 0 ⁇ n ⁇ 4.
- organic silicon compound represented by the above general formula (4) examples include diisopropylpropyldimethoxysilane, t-butylmethyldimethoxysilane, t-butylmethyljetoxysilane, and t-amino retino-leger.
- Toxisilane dicyclohexylenoresimethoxymethoxy, cyclohexylmethyldimethoxysilane, cyclohexylmethyljetoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, t-butyltriethoxysilane, phenyltriethoxysilane, cyclo Hexyltrimethoxysilane, cyclopentyltrimethoxysilane, 2-methylcyclopentyltrimethoxysilane, cyclopentyltriethoxysilane, dicyclopentyldimethoxysilane, dicyclopentenolegetoxysilane, tricyclopentylmethoxy Orchids, dicyclopentyl methylmethoxysilane, dicyclopentyl Rue chill silane, such Shikurobe emissions chill dimethylethoxysilane is used.
- butyltriethoxysilane, diphenyldimethoxysilane, dicyclohexyldimethoxysilane, cyclohexenoremethinoresimethoxymethoxysilane, and dicyclopentinoresinmethoxysilane are preferably used.
- a silane compound represented by the following formula (5) described in International Publication No. 2004Z016662 pamphlet is also a preferable example of the organic silicon compound.
- R a is a hydrocarbon group having 1 to 6 carbon atoms
- examples of R a include unsaturated or saturated aliphatic hydrocarbon groups having 1 to 6 carbon atoms, particularly preferably.
- Examples include hydrocarbon groups having 2 to 6 carbon atoms.
- Specific examples include methyl, ethyl, n-propyl, is o-propyl, n-butyl, iso-butyl, sec-butyl, n-pentyl, is An o-pentyl group, a cyclopentyl group, an n-xyl group, a cyclohexyl group and the like can be mentioned.
- an ethyl group is particularly preferable.
- R b is a hydrocarbon group having 1 to 12 carbon atoms or hydrogen
- examples of R b include an unsaturated or saturated aliphatic hydrocarbon group having 1 to 12 carbon atoms or hydrogen. It is done. Specific examples include a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butinole group, an iso-butinole group, a sec-butinole group, an n-pentinole group, an iso-pentinole group, a cyclopentyl group, An n- xyl group, a cyclohexyl group, an octyl group and the like can be mentioned, and among these, an ethyl group is particularly preferable.
- a hydrocarbon group having 1 to 12 carbon atoms is a hydrocarbon group having 1 to 12 carbon atoms, and examples thereof include an unsaturated or saturated aliphatic hydrocarbon group having 1 to 12 carbon atoms or hydrogen. Specific examples include a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group, an iso-butynole group, a sec-butinole group, an n-pentinole group, an iso-pentinole group, and a cyclopentinole group. , N-hexyl group, cyclohexyl group, octyl group and the like, among which ethyl group is particularly preferable.
- organosilicon compound is a compound represented by the following formula (6). I can get lost.
- RN is a cyclic amino group
- examples of the cyclic amino group include perhydroquinolino group, perhydroisoquinolino group, 1, 2, 3, 4-tetrahydroquinolino group, 1, 2 , 3, 4-tetrahydroisoquinolino group, otatamethyleneimino group and the like.
- organic cage compounds may be used in combination of two or more.
- catalyst component ( ⁇ ) examples include the aromatic carboxylic acid ester and a compound having two or more ether bonds via Z or a plurality of carbon atoms (the catalyst component).
- the polyethery compounds described as examples in (c)) are also preferred and can be mentioned as examples.
- 1,3-diethers are preferred, especially 2-isopropyl-2-isobutyl-1,3-dimethoxypropane, 2,2-diisobutyl-1,3-dimethoxy Mouth pan, 2-isopropyl-2-isopentyl-1,3-dimethoxypropane, 2,2-dicyclohexyl-1,3-dimethoxypropane, 2,2-bis (cyclohexylmethyl) 1,3-dimethoxypropane Is preferred.
- the olefin polymerization catalyst of the present invention may contain other components useful for olefin polymerization as required in addition to the above components.
- examples of other components include a carrier such as silica, an antistatic agent, a particle flocculant, a storage stabilizer, and the like.
- a carrier such as silica, an antistatic agent, a particle flocculant, a storage stabilizer, and the like.
- the olefin polymerization method according to the present invention is characterized in that olefin polymerization is performed using the olefin polymerization catalyst of the present invention.
- polymerization may include the meaning of copolymerization such as random copolymerization and block copolymerization in addition to homopolymerization.
- the main polymerization is performed in the presence of a prepolymerization catalyst obtained by prepolymerizing ⁇ -olefin in the presence of the olefin polymerization catalyst of the present invention. It is also possible.
- This prepolymerization is carried out by prepolymerizing a-olefin in an amount of from 0.1 to: LOOOg, preferably from 0.3 to 500 g, particularly preferably from 1 to 200 g, per lg of olefin polymerization catalyst.
- the concentration of the solid titanium catalyst component (I) in the prepolymerization is usually about 0.001 to 200 midimono, preferably about 0.01 to 50 midmol per 1 liter of liquid medium in terms of titanium atoms. In particular, the range of 0.1 to 20 mmol is desirable.
- the amount of the organometallic compound catalyst component ( ⁇ ) in the prepolymerization should be such that 0.1 to L000 g, preferably 0.3 to 500 g of polymer is formed per lg of the solid titanium catalyst component (I). In an amount of about 0.1 to 300 mol, preferably about 0.5 to L00 mol, particularly preferably 1 to 50 mol, per mol of titanium atom in the solid titanium catalyst component (I). I hope that there is.
- the catalyst component (III) or the like can be used as necessary.
- these components are added to the solid titanium catalyst component (I) with respect to 1 mole of titanium atoms. It is used in an amount of 1 to 50 mol, preferably 0.5 to 30 mol, more preferably 1 to 10 mol.
- the prepolymerization can be performed under mild conditions by adding olefin and the above-described catalyst component to an inert hydrocarbon medium.
- Aliphatic hydrocarbons such as propane, butane, pentane, hexane, heptane, octane, decane, dodecane, kerosene;
- Aromatic hydrocarbons such as benzene, toluene, xylene;
- Halogenated hydrocarbons such as ethylene chloride and chlorobenzene
- inert hydrocarbon media it is particularly preferable to use aliphatic hydrocarbons.
- the prepolymerization is preferably performed in a batch system.
- prepolymerization can be performed using olefin itself as a solvent, or it can be prepolymerized in a substantially solvent-free state. In this case, it is preferable to perform preliminary polymerization continuously.
- the olefin used in the prepolymerization may be the same as or different from the olefin used in the main polymerization described later. Specifically, propylene is preferable.
- the temperature during the prepolymerization is usually within a range of about -20 to + 100 ° C, preferably about -20 to + 80 ° C, more preferably 0 to + 40 ° C. ! /
- Olefins that can be used in the polymerization include ⁇ -olefins having 3 to 20 carbon atoms, such as propylene, 1-butene, 1 -Linear olefins such as pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene, 4-methyl-1- Examples include branched olefins such as pentene, 3-methyl-1-pentene, and 3-methyl-1-butene.
- Propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 3-methyl- 1-butene is preferred.
- propylene, 1-butene, 4-methyl-1-pentene, and 3-methyl-1-butene are particularly preferable from the viewpoint that the advantages of a polymer having a wide molecular weight distribution can be easily expressed in high-stiffness rosin.
- aromatic beer compounds such as ethylene, styrene, and arylbenzene; and alicyclic beure compounds such as beucyclohexane and beucycloheptane.
- a compound having a polyunsaturated bond such as conjugated gen such as rhododecene, isoprene, butadiene and the like and non-conjugated gen can also be used as a polymerization raw material together with ethylene and a-olefin.
- conjugated gen such as rhododecene, isoprene, butadiene and the like
- non-conjugated gen can also be used as a polymerization raw material together with ethylene and a-olefin.
- These compounds may be used alone or in combination of two or more.
- ethylene and aromatic bur compounds are preferable.
- small amounts e.g. 10 wt% or less, preferably it is an amount of 0/0 below 5 by weight, other Orefin such as ethylene may be used in combination.
- the prepolymerization and the main polymerization can be carried out even if they are liquid phase polymerization methods such as Balta polymerization method, solution polymerization, suspension polymerization, or gas phase polymerization methods.
- the reaction solvent may be the inert hydrocarbon used in the above pre-polymerization, or olefin that is liquid at the reaction temperature. it can.
- the solid titanium catalyst component (I) is usually about 0.0001 to 0.5 mmol, preferably about about 0.0001 to 0.5 mmol in terms of titanium atom per liter of polymerization volume. Used in an amount of 0.005 to 0.1 mmol.
- the organometallic compound catalyst component ( ⁇ ) is usually about 1 to 2000 mol, preferably about 5 to 500 mol, more preferably 10 to 1 mol per 1 mol of titanium atom in the prepolymerization catalyst component in the polymerization system. 350 mol, more preferably 30 to 350 mol, particularly preferably 50 to 350 mol is used.
- the catalyst component (III) is preferably from 0.001 to 50 mol, preferably from 0.01 to 30 mol, particularly preferably from the organometallic compound catalyst component (II). Used in an amount of 0. 05-20 moles.
- the molecular weight of the resulting polymer can be adjusted, and a polymer having a high melt flow rate can be obtained.
- the polymerization temperature of olefin is usually about 20 to 200 ° C, preferably about 30 to 100 ° C, more preferably 50 to 90 ° C.
- the pressure is usually set to normal pressure to 10 Okgf / cm 2 (9.8 MPa), preferably about 2 to 50 kgfZcm 2 (0.20 to 4.9 MPa).
- the polymerization is carried out either batchwise, semi-continuous or continuously. It can also be done in the law.
- the polymerization can be carried out in two or more stages by changing the reaction conditions. By performing such multi-stage polymerization, it is possible to further widen the molecular weight distribution of the olefin polymer.
- the olefin polymer obtained in this manner may be misaligned, such as a homopolymer, a random copolymer, and a block copolymer.
- the decane insoluble component content is 70% or more, preferably 85% or more, particularly preferably 90% or more. A certain propylene-based polymer with high stereoregularity is obtained.
- a polyolefin having a wide molecular weight distribution can be obtained without performing multistage polymerization, even with a small number of stages of polymerization, for example, single stage polymerization.
- the ratio of components having a higher molecular weight is higher than that of conventional olefin polymers having the same melt flow rate (MFR). It is characterized in that an olefin polymer having a low molecular weight and a low component ratio is often obtained. This characteristic can be confirmed by gel permeation chromatography (GPC) measurement described later, and a polymer having both high Mw ZMn value and MzZMw value can be obtained.
- GPC gel permeation chromatography
- Polypropylene having a high MwZMn value is regarded as a common sense in the traders that it has excellent moldability and rigidity.
- a high MzZMw value indicates a high content ratio of components having a high molecular weight, and it is expected that the resulting polypropylene has a high melt tension and is likely to be excellent in moldability.
- the method for polymerizing olefins of the present invention is used, a polymer having a broad molecular weight distribution can be obtained without performing multi-stage polymerization, and therefore the possibility of simplifying the polymer production apparatus is possible. There is. In addition, when applied to a conventional multistage polymerization method, it is expected that a polymer having better melt tension and moldability can be obtained.
- the bulk specific gravity, melt flow rate, decane-soluble (insoluble) component amount, and molecular weight distribution of the propylene polymer were measured by the following methods.
- the measurement temperature was 230 ° C for propylene polymer and 260 ° C for 4-methyl 1-pentene polymer.
- Decane insoluble component content 100-100 X (500 X a) / (100 X b)
- Liquid Chromatograph Waters ALC / GPC 150-C plus (with suggested refractometer detector)
- the MwZ Mn value and the MzZMw value were calculated by analyzing the obtained chromatogram by a known method.
- the measurement time per sample was 60 minutes
- the solid part was collected by hot filtration.
- the solid part was resuspended in 200 ml of titanium tetrachloride, and the temperature was raised to 130 ° C. And held for 15 minutes with stirring.
- the solid part was again collected by hot filtration, and thoroughly washed with decane and heptane at 100 ° C until no free titanium compound was detected in the washing solution.
- the solid titanium catalyst component (A) was obtained by the above operation.
- a solid titanium catalyst component (B) was obtained in the same manner as in Example 1 except that —1, 2-dibenzoate (CH) was used.
- a solid titanium catalyst component (C) was obtained in the same manner as in Example 1 except that the reaction at 120 ° C was 90 minutes and the reaction at 130 ° C was 45 minutes.
- the polyolefin polymerization catalyst containing the solid titanium catalyst component of the present invention is used in comparison with the olefin polymerization catalyst containing a solid titanium catalyst component of a comparative example that has been conventionally used. It can be seen that an olefin polymer having a broad molecular weight distribution can be obtained. Such an olefin polymer is also advantageous in obtaining a high melt flowable resin recently required for, for example, automobile injection molding applications.
- Figure 1 shows the relationship between the hydrogen consumption and MFR in the above results. It is known to those skilled in the art that the relationship between the amount of hydrogen used and MFR shows good linearity on the graph when the logarithm is taken. In the case of performing multistage polymerization for the purpose of broadening the molecular weight distribution, it is shown that the catalyst with a steeper slope in this graph can greatly change the molecular weight with a small difference in the amount of hydrogen used. That is, it is advantageous for widening the molecular weight distribution.
- the molecular weight distribution is extremely wide. It is possible to obtain a olefin polymer.
- a solid titanium catalyst component containing a cyclic polyvalent ester group-containing compound having a substituent at the cyclic site is used, olefin polymerization with extremely high activity and higher stereoregularity is maintained while maintaining a wide molecular weight distribution.
- the multistage polymerization method is used in combination, it is advantageous to obtain an olefin polymer having a broad molecular weight distribution.
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Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP07790753.3A EP2048166B1 (en) | 2006-07-18 | 2007-07-13 | Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of olefin polymerization |
JP2008525847A JP5479734B2 (ja) | 2006-07-18 | 2007-07-13 | 固体状チタン触媒成分、オレフィン重合用触媒およびオレフィン重合方法 |
US12/309,319 US20090203855A1 (en) | 2006-07-18 | 2007-07-13 | Solid titanium catalyst ingredient, catalyst for olefin polymerization, and method of olefin polymerization |
CN2007800266855A CN101490101B (zh) | 2006-07-18 | 2007-07-13 | 固态钛催化剂成分、烯烃聚合用催化剂及烯烃聚合方法 |
Applications Claiming Priority (2)
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JP2006-195732 | 2006-07-18 | ||
JP2006195732 | 2006-07-18 |
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WO2008010459A1 true WO2008010459A1 (fr) | 2008-01-24 |
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PCT/JP2007/063972 WO2008010459A1 (fr) | 2006-07-18 | 2007-07-13 | Ingrédient catalyseur au titane solide, catalyseur de polymérisation d'oléfine, et procédé de polymérisation d'oléfine |
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US (1) | US20090203855A1 (ja) |
EP (1) | EP2048166B1 (ja) |
JP (1) | JP5479734B2 (ja) |
KR (2) | KR20090034984A (ja) |
CN (1) | CN101490101B (ja) |
TW (1) | TW200829615A (ja) |
WO (1) | WO2008010459A1 (ja) |
Cited By (7)
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JP2012514126A (ja) * | 2008-12-31 | 2012-06-21 | ダウ グローバル テクノロジーズ エルエルシー | 強化されたプロ触媒組成物及びプロセス |
JP2012514125A (ja) * | 2008-12-31 | 2012-06-21 | ダウ グローバル テクノロジーズ エルエルシー | 置換された1,2−フェニレン芳香族ジエステルの内部供与体を有するプロ触媒組成物及び方法 |
WO2014065331A1 (ja) | 2012-10-25 | 2014-05-01 | 株式会社プライムポリマー | 微多孔フィルム用ポリプロピレン |
US10256041B2 (en) | 2015-03-31 | 2019-04-09 | Prime Polymer Co., Ltd. | Polypropylene for film capacitor, biaxially stretched film for film capacitor, film capacitor, and process for producing the same |
WO2022045232A1 (ja) | 2020-08-26 | 2022-03-03 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒、オレフィンの重合方法およびプロピレン重合体 |
WO2022138634A1 (ja) | 2020-12-21 | 2022-06-30 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒、オレフィンの重合方法およびプロピレン重合体 |
WO2024204845A1 (ja) * | 2023-03-30 | 2024-10-03 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒およびオレフィンの重合方法 |
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US10011693B2 (en) | 2012-10-25 | 2018-07-03 | Prime Polymer Co., Ltd. | Polypropylene for microporous film |
US10256041B2 (en) | 2015-03-31 | 2019-04-09 | Prime Polymer Co., Ltd. | Polypropylene for film capacitor, biaxially stretched film for film capacitor, film capacitor, and process for producing the same |
WO2022045232A1 (ja) | 2020-08-26 | 2022-03-03 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒、オレフィンの重合方法およびプロピレン重合体 |
WO2022138634A1 (ja) | 2020-12-21 | 2022-06-30 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒、オレフィンの重合方法およびプロピレン重合体 |
WO2024204845A1 (ja) * | 2023-03-30 | 2024-10-03 | 三井化学株式会社 | 固体状チタン触媒成分、オレフィン重合用触媒およびオレフィンの重合方法 |
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TW200829615A (en) | 2008-07-16 |
EP2048166A1 (en) | 2009-04-15 |
CN101490101A (zh) | 2009-07-22 |
CN101490101B (zh) | 2011-11-02 |
JPWO2008010459A1 (ja) | 2009-12-17 |
KR20090034984A (ko) | 2009-04-08 |
JP5479734B2 (ja) | 2014-04-23 |
KR20110134522A (ko) | 2011-12-14 |
EP2048166A4 (en) | 2013-02-20 |
US20090203855A1 (en) | 2009-08-13 |
EP2048166B1 (en) | 2014-02-26 |
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