ZA988614B - Hydrophilic polyester-polyurethane foams a process for their production and their use as moisture-absorbing materials - Google Patents

Hydrophilic polyester-polyurethane foams a process for their production and their use as moisture-absorbing materials

Info

Publication number
ZA988614B
ZA988614B ZA988614A ZA988614A ZA988614B ZA 988614 B ZA988614 B ZA 988614B ZA 988614 A ZA988614 A ZA 988614A ZA 988614 A ZA988614 A ZA 988614A ZA 988614 B ZA988614 B ZA 988614B
Authority
ZA
South Africa
Prior art keywords
polyurethane foams
moisture
hydrophilic polyester
production
absorbing materials
Prior art date
Application number
ZA988614A
Inventor
Klaus-Peter Herzog
Gunther Baatz
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of ZA988614B publication Critical patent/ZA988614B/en

Links

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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/125—Water, e.g. hydrated salts
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4263—Polycondensates having carboxylic or carbonic ester groups in the main chain containing carboxylic acid groups
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4825—Polyethers containing two hydroxy groups
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

A single-step process is used to prepare the foam using highly ethoxylated polyether polyols. Preparing hydrophilic polyester polyurethane foams comprises reacting: (A) polyisocyanates; (B) polyester polyols containing at least two hydroxyl groups and having an average molecular weight of 400-10000; (C) ethoxylated polyether polyols containing at least two hydroxyl groups and having a degree of ethoxylation greater than 30 wt.% and a functionality of 2-6; (D) optional chain extender and/or cross-linking agent compounds containing at least two active hydrogen atoms and having a molecular weight of 32-400; (E) catalysts, water and/or propellent; and (F) optional auxiliary agents and additives. An Independent claim is also included for the foams prepared by this process.
ZA988614A 1997-09-22 1998-09-21 Hydrophilic polyester-polyurethane foams a process for their production and their use as moisture-absorbing materials ZA988614B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19741646A DE19741646A1 (en) 1997-09-22 1997-09-22 Hydrophilic polyester-polyurethane foams, a process for their production and their use as moisture-absorbing materials

Publications (1)

Publication Number Publication Date
ZA988614B true ZA988614B (en) 1999-03-31

Family

ID=7843134

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA988614A ZA988614B (en) 1997-09-22 1998-09-21 Hydrophilic polyester-polyurethane foams a process for their production and their use as moisture-absorbing materials

Country Status (14)

Country Link
EP (1) EP0903360B1 (en)
JP (1) JP4350819B2 (en)
KR (1) KR100528946B1 (en)
AT (1) ATE283878T1 (en)
BR (1) BR9803944A (en)
CA (1) CA2247657C (en)
CZ (1) CZ298461B6 (en)
DE (2) DE19741646A1 (en)
DK (1) DK0903360T3 (en)
ES (1) ES2234056T3 (en)
PL (1) PL192955B1 (en)
PT (1) PT903360E (en)
SI (1) SI0903360T1 (en)
ZA (1) ZA988614B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909978A1 (en) * 1999-03-06 2000-09-07 Bayer Ag The use of hydrophilic polyester-polyurethane foams in the manufacture of composite materials for vehicle interiors
DE102004006384A1 (en) * 2004-02-09 2005-08-25 Endress + Hauser Flowtec Ag, Reinach Foamed molded part for protecting electronic components, e.g. in a transmitter, comprises a foam material containing moisture-binding material and having recess(es) for electronic components
JP2007161750A (en) * 2005-12-09 2007-06-28 Inoac Corp Water-absorbing and yellowing-resistant polyurethane foam
US20070191502A1 (en) * 2006-02-14 2007-08-16 Foamex L.P. Hydrophilic ester polyurethane foams
CA2716792C (en) 2008-03-14 2017-04-18 Basf Se Coarse-cell polyurethane elastomers
DE102009028631A1 (en) 2008-08-19 2010-02-25 Basf Se Preparing polyurethane foam, useful as a cleaning sponge for e.g. cleaning tubes, comprises mixing and reacting polyisocyanate, blowing agent (water) and optionally chain extenders, catalyst, and other auxiliaries and/or additives
DE102011050013A1 (en) * 2011-04-29 2012-10-31 Bayer Materialscience Aktiengesellschaft Polyurethane foam and process for its preparation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806474A (en) * 1970-11-23 1974-04-23 Princeton Polymer Sponge Corp Hydrophilic polyester urethane foam
US4049592A (en) * 1975-07-18 1977-09-20 W. R. Grace & Co. Biodegradable hydrophilic foams and method
US4929646A (en) * 1988-04-26 1990-05-29 The Dow Chemical Company Polyurethane foam prepared using high functionality cell openers
US5650450A (en) * 1996-01-25 1997-07-22 Foamex L.P. Hydrophilic urethane foam

Also Published As

Publication number Publication date
CA2247657A1 (en) 1999-03-22
DE19741646A1 (en) 1999-03-25
JPH11246645A (en) 1999-09-14
BR9803944A (en) 1999-12-14
SI0903360T1 (en) 2005-04-30
EP0903360B1 (en) 2004-12-01
CA2247657C (en) 2009-02-17
JP4350819B2 (en) 2009-10-21
PL192955B1 (en) 2006-12-29
CZ298461B6 (en) 2007-10-10
ES2234056T3 (en) 2005-06-16
DK0903360T3 (en) 2005-02-28
EP0903360A1 (en) 1999-03-24
CZ302098A3 (en) 1999-04-14
KR100528946B1 (en) 2006-01-27
DE59812320D1 (en) 2005-01-05
PT903360E (en) 2005-03-31
PL328650A1 (en) 1999-03-29
KR19990029995A (en) 1999-04-26
ATE283878T1 (en) 2004-12-15

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