DE409199T1 - Harte polyurethanpolyisocyanurat-schaumstoffe, sowie verfahren zu deren herstellung. - Google Patents

Harte polyurethanpolyisocyanurat-schaumstoffe, sowie verfahren zu deren herstellung.

Info

Publication number
DE409199T1
DE409199T1 DE199090113770T DE90113770T DE409199T1 DE 409199 T1 DE409199 T1 DE 409199T1 DE 199090113770 T DE199090113770 T DE 199090113770T DE 90113770 T DE90113770 T DE 90113770T DE 409199 T1 DE409199 T1 DE 409199T1
Authority
DE
Germany
Prior art keywords
rigid foam
carboxylic acid
foam according
weight
blowing agent
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE199090113770T
Other languages
English (en)
Inventor
Thomas W. Macungie Pennsylvania 18062 Bodnar
Leslie A. New Haven Connecticut 06515 Cole
Shenghong A. Cheshire Connecticut 06410 Dai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of DE409199T1 publication Critical patent/DE409199T1/de
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/14—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 organic
    • C08J9/149—Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • 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
    • C08G18/08—Processes
    • C08G18/09—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
    • C08G18/092—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture oligomerisation to isocyanurate groups
    • 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
    • C08J9/06—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 chemical blowing agent
    • C08J9/08—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 chemical blowing agent developing carbon dioxide
    • 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
    • C08J9/127—Mixtures of organic and inorganic blowing agents
    • 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
    • C08J9/14—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 organic
    • C08J9/143—Halogen containing compounds
    • C08J9/147—Halogen containing compounds containing carbon and halogen atoms only
    • 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
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/0041—Foam properties having specified density
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/12—Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
    • 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
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
    • 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
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/10—Rigid foams
    • 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
    • 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
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors

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)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Claims (9)

113 770.3 THE DOW CHEMICAL COMPANY PATENTANSPRÜCHE
1. Polyurethan-Polyisocyanurat-Hartschaumstoff, hergestellt durch Vereinigen eines Gemischs aus
(a) einem organischen Polyisocyanat;
(b) einem Polyol;
(c) einem Treibmittelgemisch aus
(1) einem Halogenkohlenstofftreibmittel und 15
(2) einer organischen Carbonsäure, bei der die
Carbonsäuregruppe an einem nicht-aromatischen Kohlenstoffatom hängt, und
(d) einem Trimerisierungskatalysator
unter Schaumstoffbildungsbedingungen.
2. Hartschaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß das Treibmittelgemisch (c) 50 - 90 Gew.-% (.1.) und
50 - 10 Gew.-% (2), bezogen auf das Gesamtgewicht (1) und (2),enthält.
3. Hartschaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß das Treibmittelgemisch (c) 5-20 Gew.-%, bezogen
auf das Gesamtgewicht (a) , (b) und (c), ausmacht. 30
4. Hartschaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß das Treibmittelgemisch (c) zusätzlich
(3) Wasser in solchen Mengen enthält, daß die gewichtsprozentualen Mengen (1), (2) und (3), bezogen auf ihr Gesamtgewicht, 25-95, 2-60 bzw. 0,5 - 15 Gew.-% ausmachen.
5. Hartschaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß (a) aus einem aromatischen Polyisocyanat, (b) aus einem polymeren Polyol einer Funktionalität von 2 bis 8 und eines Molekulargewichts von 225 bis 12 000 oder eines Durchschnittswerts derselben, (1) aus einem Fluorkohlenstoff und (2) aus einer aliphatischen Carbonsäure mit 1-10 Kohlenstoffatom(en) bestehen.
6. Hartschaumstoff nach Anspruch 5, dadurch gekennzeichnet, daß es sich bei dem Polyol um ein Rohpolyesterpolyol
einer primären Hydroxylfunktionalität von 2 bis 4 oder eines Durchschnittswerts derselben und eines Molekulargewichts von 250 bis 1 500 oder eines Durchschnittswerts desselben handelt.
15
7. Hartschaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Reaktionsteilnehmeranteile derart sind, daß das Verhältnis Isocyanatäquivalente/gesamte aktive Wasserstoff äquivalente in einen Bereich von 1,5:1 bis 8:1 fällt.
8. Hartschaumstoff nach Anspruch 1, hergestellt durch Vereinigen
(a) eines Polymethylenpoly(phenylisocyanats); 25
(b) eines Rohpolyesterpolyols einer primären Hydroxylfunktionalität von 2-4 oder eines Durchschnittswerts derselben und eines Molekulargewichts von 250 bis 1 500 oder eines Durchschnittswerts desselben;
(c) 5-20 Gew.-%, bezogen auf das Gesamtgewicht (a), (b) und (c), eines Treibmittelgemischs aus
(1) 25 - 95 Gew.-% eines Fluorkohlenstoffs,
(2) 2-60 Gew.-% einer aliphatischen Carbonsäure mit 1-10 Kohlenstoffatom(en) und
(3) 0,5 - 15 Gew.-% Wasser und
(d) eines Trimerisierungskatalysators, wobei die Reaktionsteilnehmeranteile derart sind, daß
c das Verhältnis Isocyanatäquivalente/gesamte aktive
Wasserstoffäquivalente in einen Bereich von 1,5:1 bis 8:1 fällt.
9. Hartschaumstoff nach Anspruch 8, dadurch gekennzeichnet, daß das Treibmittelgemisch (c) 7-12 Gew.-% des Gesamtgewichts (a), (b) und (c) ausmacht und das Treibmittelgemisch selbst
(1) 65 - 85 Gew.-% Monofluortrichlormethan,
(2) 9-30 Gew.-% einer verzweigtkettigen C.- bis CR-aliphatischen Carbonsäure und
(3) 2-6 Gew.-% Wasser
enthält.
10· Verfahren zur Herstellung eines Polyurethan-Polyisocyanurat-Hartschaumstoffs, gekennzeichnet durch Vereinigen eines Gemischs aus
(a) einem organischen Polyisocyanat;
(b) einem Polyol;
25
(c) einem Treibmittelgemisch aus
(1) einem Halogenkohlenstofftreibmxttel und
(2) einer organischen Carbonsäure, bei der die
Carbonsäuregruppe an einem nicht-aromatischen 30
Kohlenstoffatom hängt, und
(d) einem Trimerisierungskatalysator unter Schaumstoffbildungsbedingungen.
DE199090113770T 1989-07-19 1990-07-18 Harte polyurethanpolyisocyanurat-schaumstoffe, sowie verfahren zu deren herstellung. Pending DE409199T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38252789A 1989-07-19 1989-07-19

Publications (1)

Publication Number Publication Date
DE409199T1 true DE409199T1 (de) 1991-05-23

Family

ID=23509352

Family Applications (1)

Application Number Title Priority Date Filing Date
DE199090113770T Pending DE409199T1 (de) 1989-07-19 1990-07-18 Harte polyurethanpolyisocyanurat-schaumstoffe, sowie verfahren zu deren herstellung.

Country Status (10)

Country Link
US (1) US5064871A (de)
EP (1) EP0409199A3 (de)
JP (1) JPH03149234A (de)
KR (1) KR910002936A (de)
AU (1) AU5910490A (de)
BR (1) BR9003472A (de)
CA (1) CA2021417A1 (de)
DE (1) DE409199T1 (de)
IE (1) IE902621A1 (de)
NZ (1) NZ234526A (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028211A1 (de) * 1990-09-06 1992-03-12 Basf Ag Verfahren zur herstellung von urethangruppen oder urethan- und isocyanuratgruppen enthaltenden hartschaumstoffen
DE4307384A1 (de) * 1993-03-09 1994-09-15 Bayer Ag Verfahren zur Herstellung von Formkörpern aus Polyurethanschaumstoffen
US5328977A (en) * 1993-11-12 1994-07-12 Miles Inc. Polymerization catalyst for the preparation of poly(isocyanates)
DE19647296A1 (de) * 1996-11-15 1998-05-20 Basf Ag Zinnhaltige Polyisocyanate und Verfahren zur Herstellung von Polyisocyanat-Polyadditionsprodukten
WO1999051668A1 (en) 1998-04-03 1999-10-14 Huntsman Ici Chemicals Llc Polyisocyanurate foams
JP3891934B2 (ja) * 2000-10-17 2007-03-14 旭化成ケミカルズ株式会社 ポリイソシアネート組成物の製造方法
JP4104494B2 (ja) * 2002-06-28 2008-06-18 花王株式会社 ポリイソシアヌレートフォームの製造法
DE10346157A1 (de) * 2003-10-04 2005-05-12 Basf Coatings Ag Flüssige Rheologiehilfsmittel, Verfahren zu ihrer Herstellung und ihre Verwendung
DE102005041763A1 (de) * 2005-09-01 2007-03-08 Basf Ag Polyisocyanurat Hartschaum und Verfahren zur Herstellung
US8603070B1 (en) 2013-03-15 2013-12-10 Angiodynamics, Inc. Catheters with high-purity fluoropolymer additives
US20140276470A1 (en) 2006-11-07 2014-09-18 Raymond Lareau Dialysis Catheters with Fluoropolymer Additives
ES2611629T3 (es) 2006-12-14 2017-05-09 Interface Biologics Inc. Macromoléculas de modificación de superficie con altas temperaturas de degradación y usos de las mismas
CA2735442C (en) * 2008-08-28 2018-09-11 Interface Biologics Inc. Thermally stable biuret and isocyanurate based surface modifying macromolecules and uses thereof
PL2295132T3 (pl) 2009-05-15 2017-02-28 Interface Biologics Inc. Przeciwzakrzepowe membrany z włókien kapilarnych, materiał do zalewania i przewód do krwi
RU2012121583A (ru) * 2009-10-28 2013-12-10 Баейр Матириальсайенс Аг Катализаторы и их применение
US20120313035A1 (en) * 2011-06-08 2012-12-13 Honeywell International Inc. Polyurethane foam premixes containing halogenated olefin blowing agents and foams made from same
MX345176B (es) 2011-05-05 2017-01-19 Adco Products Llc Adhesivo reactivo de techumbre.
US9701876B2 (en) * 2012-11-02 2017-07-11 Adco Products, Llc Reactive roofing adhesive
US9206283B1 (en) 2013-03-15 2015-12-08 Angiodynamics, Inc. Thermoplastic polyurethane admixtures
US8784402B1 (en) 2013-03-15 2014-07-22 Angiodynamics, Inc. Catheters with fluoropolymer additives
US10166321B2 (en) 2014-01-09 2019-01-01 Angiodynamics, Inc. High-flow port and infusion needle systems
US9764884B2 (en) 2014-10-06 2017-09-19 Interface Biologics, Inc. Packaging materials including a barrier film
CA3041063C (en) 2016-10-18 2021-06-08 Interface Biologics, Inc. Plasticized pvc admixtures with surface modifying macromolecules and articles made therefrom
US10961340B2 (en) 2017-07-14 2021-03-30 Fresenius Medical Care Holdings, Inc. Method for providing surface modifying composition with improved byproduct removal

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US3476933A (en) * 1966-10-21 1969-11-04 Westinghouse Electric Corp Large-celled polyurethane foam
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US3919173A (en) * 1973-11-23 1975-11-11 Contech Inc Moisture curable polyurethane systems
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DE2607999C2 (de) * 1976-02-27 1983-02-03 Bayer Ag, 5090 Leverkusen Urethan- und Isocyanuratgruppen aufweisende Schaumstoffe und ein Verfahren zu ihrer Herstellung
US4066580A (en) * 1976-06-07 1978-01-03 Basf Wyandotte Corporation Process for the manufacture of polyisocyanurate foams
US4110135A (en) * 1976-11-11 1978-08-29 Thiokol Corporation Control of cure rate of polyurethane resin based propellants
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DE3328661A1 (de) * 1983-08-09 1985-02-21 Bayer Ag, 5090 Leverkusen Verwendung von ammoniumsalzen als latente katalysatoren fuer die isocyanat-polyadditionsreaktion
US4473666A (en) * 1984-01-30 1984-09-25 Abbott Laboratories Catalyst system for use in producing carboxylic acid blown polyurethane foams
US4582861A (en) * 1984-11-13 1986-04-15 Air Products And Chemicals, Inc. Delayed action/enhanced curing catalysis in polyurethane systems
US4584362A (en) * 1985-02-27 1986-04-22 Cosan Chemical Corporation Bismuth catalyst system for preparing polyurethane elastomers
US4611044A (en) * 1985-05-28 1986-09-09 The Dow Chemical Company Polyurethane carpet backing catalyzed with organoiron and organobismuth catalysts
US4742090A (en) * 1986-03-31 1988-05-03 The Dow Chemical Company Bismuth/carboxylic acid catalysts for preparing elastomers
US4740577A (en) * 1987-08-28 1988-04-26 Minnesota Mining And Manufacturing Company Energy polymerizable polyurethane precursors
DE3734340A1 (de) * 1987-10-10 1989-04-27 Bayer Ag Hitzehaertbares klebstoffsystem und ein verfahren zum verkleben von werkstoffen
DE3840817A1 (de) * 1988-12-03 1990-06-07 Bayer Ag Verfahren zur herstellung von formkoerpern aus polyurethanschaumstoffen und die nach diesem verfahren erhaltenen formkoerper

Also Published As

Publication number Publication date
NZ234526A (en) 1992-08-26
JPH03149234A (ja) 1991-06-25
KR910002936A (ko) 1991-02-26
EP0409199A3 (en) 1992-01-08
AU5910490A (en) 1991-01-24
EP0409199A2 (de) 1991-01-23
CA2021417A1 (en) 1991-01-20
IE902621A1 (en) 1991-02-27
US5064871A (en) 1991-11-12
BR9003472A (pt) 1991-08-27

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