ES2172159T3 - Composiciones de isocianato para espumas de poliuretano expandidas. - Google Patents

Composiciones de isocianato para espumas de poliuretano expandidas.

Info

Publication number
ES2172159T3
ES2172159T3 ES98932104T ES98932104T ES2172159T3 ES 2172159 T3 ES2172159 T3 ES 2172159T3 ES 98932104 T ES98932104 T ES 98932104T ES 98932104 T ES98932104 T ES 98932104T ES 2172159 T3 ES2172159 T3 ES 2172159T3
Authority
ES
Spain
Prior art keywords
isocianate
compositions
polyurethane foams
polyisocyanate
expanded polyurethane
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.)
Expired - Lifetime
Application number
ES98932104T
Other languages
English (en)
Inventor
Sachchida Nand Singh
Steven Burns
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.)
Huntsman International LLC
Original Assignee
Huntsman International LLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26728835&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2172159(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huntsman International LLC filed Critical Huntsman International LLC
Application granted granted Critical
Publication of ES2172159T3 publication Critical patent/ES2172159T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • 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
    • C08G18/4205—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups
    • C08G18/4208—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups
    • C08G18/4211—Polycondensates having carboxylic or carbonic ester groups in the main chain containing cyclic groups containing aromatic groups derived from aromatic dicarboxylic acids and dialcohols
    • 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
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl 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
    • C08J9/12—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
    • C08J9/141—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
    • 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
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C08J9/146—Halogen containing compounds containing carbon, halogen and hydrogen only only fluorine as halogen atoms
    • 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
    • C08G2110/005—< 50kg/m3
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Push-Button Switches (AREA)

Abstract

Un procedimiento para preparar una espuma de poliuretano rígida, comprendiendo dicho procedimiento hacer reaccionar una composición de poliisocianato con una composición reactiva con isocianato en presencia de un agente de expansión de hidrofluorocarburo, caracterizado porque la composición de poliisocianato comprende (a) de 15 a 42 por ciento en peso de diisocianato de difenilmetano, (b) oligómeros de tres anillos de poliisocianato de polifenileno-polimetileno en una cantidad tal que la relación de (a) a (b) es igual a de 0,2 a 1,8 y (c) homólogos superiores de poliisocianato de polifenileno-polimetileno.
ES98932104T 1997-06-13 1998-06-02 Composiciones de isocianato para espumas de poliuretano expandidas. Expired - Lifetime ES2172159T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5090697P 1997-06-13 1997-06-13
US5095297P 1997-06-13 1997-06-13

Publications (1)

Publication Number Publication Date
ES2172159T3 true ES2172159T3 (es) 2002-09-16

Family

ID=26728835

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98932104T Expired - Lifetime ES2172159T3 (es) 1997-06-13 1998-06-02 Composiciones de isocianato para espumas de poliuretano expandidas.

Country Status (18)

Country Link
US (3) US6248802B1 (es)
EP (1) EP0990006B1 (es)
JP (1) JP2002510343A (es)
KR (1) KR100505774B1 (es)
CN (1) CN1117781C (es)
AR (1) AR015885A1 (es)
AU (1) AU731538B2 (es)
BR (1) BR9810613A (es)
CA (1) CA2289530A1 (es)
DE (1) DE69803669T2 (es)
ES (1) ES2172159T3 (es)
MY (1) MY116748A (es)
NZ (1) NZ501122A (es)
PL (1) PL192466B1 (es)
SK (1) SK170899A3 (es)
TR (1) TR199902970T2 (es)
TW (1) TW432082B (es)
WO (1) WO1998056847A1 (es)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002510343A (ja) * 1997-06-13 2002-04-02 ハンツマン・アイシーアイ・ケミカルズ・エルエルシー 発泡ポリウレタンフォーム用のイソシアネート組成物
US6218443B1 (en) 1997-12-30 2001-04-17 Basf Corporation Pentafluoropropane blowing agent-containing resin blend for use in making integral skin foams
EP0927738A3 (en) * 1997-12-30 2000-12-20 Basf Corporation Integral skin foams employing pentafluoropropane blowing agents
EP1345986B1 (en) 2000-12-21 2008-11-05 Dow Global Technologies Inc. Blowing agent composition and polymeric foam containing a normally-liquid hydrofluorocarbon and carbon dioxide
US6646020B2 (en) * 2001-05-23 2003-11-11 Vulcan Chemicals A Division Of Vulcan Materials Company Isopropyl chloride with hydrofluorocarbon or hydrofluoroether as foam blowing agents
RU2004113418A (ru) * 2001-10-01 2005-10-20 Хонейвелл Интернэшнл Инк. (Us) Пенопласты и способы их изготовления
US20070292675A1 (en) * 2002-09-17 2007-12-20 Hout Penne J Polymeric foam composites that meet factory material 4880 requirements
RU2315787C2 (ru) * 2002-09-17 2008-01-27 Дау Глобал Текнолоджиз Инк. Полимерные пенокомпозиты, которые удовлетворяют требованиям стандарта factory material 4880
US20040082675A1 (en) * 2002-10-28 2004-04-29 Schilling Steven L. Rigid foams and a process for the production of such foams
US20040132631A1 (en) * 2003-01-02 2004-07-08 Atofina Chemicals, Inc. Blowing agent blends
US7144926B2 (en) * 2003-01-02 2006-12-05 Arkema Inc. Blowing agent blends
US6846850B2 (en) * 2003-01-22 2005-01-25 Bayer Materialscience Llc Rigid polyurethane foams with improved properties
PL1802689T3 (pl) * 2004-10-12 2012-08-31 Dow Global Technologies Llc Kompozycja środka porotwórczego i pianka oparta na poliizocjanianach wytworzona z jej użyciem
US8119701B2 (en) 2005-10-24 2012-02-21 Owens Corning Intellectual Capital, Llc Method of manufacturing polystyrene foam with polymer processing additives
US7624910B2 (en) 2006-04-17 2009-12-01 Lockheed Martin Corporation Perforated composites for joining of metallic and composite materials
US20070173554A1 (en) 2005-10-27 2007-07-26 Yadollah Delaviz Method of manufacturing polystyrene foam with polymer processing additives
AU2013200184B2 (en) * 2005-11-01 2015-12-03 The Chemours Company Fc, Llc. Methods for making foams using blowing agents comprising unsaturated fluorocarbons
US20070100010A1 (en) * 2005-11-01 2007-05-03 Creazzo Joseph A Blowing agents for forming foam comprising unsaturated fluorocarbons
CA2840435A1 (en) 2005-11-01 2007-05-10 E.I. Du Pont De Nemours And Company Methods for making foams using blowing agents comprising unsaturated fluorocarbons
US20070098646A1 (en) 2005-11-01 2007-05-03 Nappa Mario J Aerosol propellants comprising unsaturated fluorocarbons
MY145459A (en) * 2005-11-01 2012-02-15 Du Pont Solvent compositions comprising unsaturated fluorinated hydrocarbons
ES2353434T3 (es) * 2006-03-24 2011-03-02 Huntsman International Llc Procedimiento para fabricar una espuma de poliuretano.
EP2091992A1 (de) * 2006-11-17 2009-08-26 Basf Se Polyphenylenpolymethylenpolyisocyanat und seine verwendung zur herstellung von polyurethan-schaumstoffen
WO2008075725A1 (ja) * 2006-12-19 2008-06-26 Asahi Glass Company, Limited 軟質ポリウレタンフォームの製造方法
ATE475681T1 (de) * 2007-01-12 2010-08-15 Basf Se Polyurethan-hartschaumstoffe
KR102171637B1 (ko) 2007-04-27 2020-10-29 더 케무어스 컴퍼니 에프씨, 엘엘씨 Z-1,1,1,4,4,4-헥사플루오로-2-부텐의 공비 및 공비-유사 조성물
BRPI0810304B1 (pt) * 2007-05-23 2021-02-02 Huntsman International Llc processo para produção de artigos compósitos lignocelulósicos
CA2684290C (en) 2007-06-12 2016-09-06 E. I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of e-1,1,1,4,4,4-hexafluoro-2-butene
KR20100063027A (ko) * 2007-07-20 2010-06-10 이 아이 듀폰 디 네모아 앤드 캄파니 조성물 및 폴리아이소시아네이트계 폼의 제조에서 트랜스-1,1,1,4,4,4-헥사플루오로-2-부텐 폼-형성 조성물의 용도
MX2010002471A (es) * 2007-09-06 2010-03-26 Du Pont Composiciones azeotropicas y similares a azeotropos de e-1,1,1,4,4,5,5,5-octafluoro-2-penteno.
CN101878253B (zh) * 2007-11-29 2013-05-29 纳幕尔杜邦公司 包含顺式-1,1,1,4,4,4-六氟-2-丁烯泡沫形成组合物的组合物以及所述组合物制备基于多异氰酸酯的泡沫的用途
CA2708274C (en) 2007-12-19 2016-10-18 E. I. Du Pont De Nemours And Company Foam-forming compositions containing azeotropic or azeotrope-like mixtures containing z-1,1,1,4,4,4-hexafluoro-2-butene and their uses in the preparation of polyisocyanate-based foams
CA2725102A1 (en) * 2008-06-04 2009-12-10 Owens Corning Intellectual Capital, Llc Extruded polystyrene foam containing propylene carbonate, ethylene carbonate or butylene carbonate as a process aids
JP2012519741A (ja) 2009-03-06 2012-08-30 ゾルファイ フルーオル ゲゼルシャフト ミット ベシュレンクテル ハフツング 不飽和ヒドロフルオロカーボンの使用
US20110147638A1 (en) * 2009-06-26 2011-06-23 E.I. Du Pont De Nemours And Company Azeotropic and azeotrope-like compositions of z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene, and cyclopentane
WO2011042284A2 (en) * 2009-10-07 2011-04-14 Huntsman International Llc Process for making a flexible polyurethane foam
US8821749B2 (en) 2010-04-26 2014-09-02 E I Du Pont De Nemours And Company Azeotrope-like compositions of E-1,1,1,4,4,4-hexafluoro-2-butene and 1-chloro-3,3,3-trifluoropropene
US10428170B1 (en) 2012-07-31 2019-10-01 Huntsman International Llc Hydrocarbon blown polyurethane foam formulation giving desirable thermal insulation properties
US10144798B2 (en) * 2015-12-21 2018-12-04 Covestro Llc Methods for designing polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby
US10829939B2 (en) * 2017-03-29 2020-11-10 Johns Manville Thermal insulation properties of polyiso foams

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE72253T1 (de) * 1987-09-15 1992-02-15 Bayer Ag Verfahren zur herstellung von polyurethanhartschaumstoffen.
GB8728886D0 (en) * 1987-12-10 1988-01-27 Ici Plc Polyisocyanate compositions
JP2967828B2 (ja) 1988-06-06 1999-10-25 ▲高▼木産業株式会社 袋の開口支援機構
DE3933335C2 (de) * 1989-10-06 1998-08-06 Basf Ag Verfahren zur Herstellung von Polyurethan-Hartschaumstoffen mit geringer Wärmeleitfähigkeit und ihre Verwendung
US5436277A (en) * 1994-07-28 1995-07-25 Basf Corporation Polyisocyanate compositions for the preparation of flexible polyurethane foams
GB2292386A (en) * 1994-08-17 1996-02-21 Basf Corp Polyol compositions and rigid polyisocyanate based foams containing 2-chloropr opane and aliphatic hydrocarbon blowing agents
US5426127A (en) * 1994-09-26 1995-06-20 Miles Inc. Rigid foams with improved insulation and physical properties
US5510053A (en) * 1994-12-29 1996-04-23 Basf Corporation Water-blown polyurethane sealing devices and compositions for producing same
JP2002510343A (ja) * 1997-06-13 2002-04-02 ハンツマン・アイシーアイ・ケミカルズ・エルエルシー 発泡ポリウレタンフォーム用のイソシアネート組成物

Also Published As

Publication number Publication date
KR100505774B1 (ko) 2005-08-04
PL337317A1 (en) 2000-08-14
CA2289530A1 (en) 1998-12-17
TW432082B (en) 2001-05-01
AU8211998A (en) 1998-12-30
WO1998056847A1 (en) 1998-12-17
MY116748A (en) 2004-03-31
SK170899A3 (en) 2000-06-12
US20030078310A1 (en) 2003-04-24
BR9810613A (pt) 2000-08-29
JP2002510343A (ja) 2002-04-02
KR20010013695A (ko) 2001-02-26
CN1117781C (zh) 2003-08-13
US6248802B1 (en) 2001-06-19
NZ501122A (en) 2002-04-26
AU731538B2 (en) 2001-03-29
TR199902970T2 (xx) 2000-05-22
EP0990006B1 (en) 2002-01-30
US6590005B2 (en) 2003-07-08
US20020022674A1 (en) 2002-02-21
CN1260809A (zh) 2000-07-19
PL192466B1 (pl) 2006-10-31
DE69803669T2 (de) 2002-08-14
AR015885A1 (es) 2001-05-30
DE69803669D1 (de) 2002-03-14
EP0990006A1 (en) 2000-04-05
US6455601B1 (en) 2002-09-24

Similar Documents

Publication Publication Date Title
AR015885A1 (es) Composiciones para espumas de poliuretano expandidas y procedimiento para su preparacion
DE60102572D1 (en) Polyurethanhartschaumstoffe
AR018787A1 (es) Composiciones de prepolimero de poliuretano, espumas hechas a partir de las mismas y metodos para hacer cada una de las mismas
BR8902554A (pt) Misturas de poliisocianato liquidas,processo para a sua preparacao e aplicacao
ID17935A (id) Pembuatan cetakan-cetakan poliuretana elastis yang mempunyai permukaan rapat dan inti selular
ES2102472T3 (es) Espumas de poliuretano.
AR017144A1 (es) Proceso para preparar espumas rigidas de poliuretano, espuma rigida obtenida por dicho proceso y composicion polifuncional reactiva al isocianato quecomprende una mezcla de agentes de expansion fisica.
BR9408191A (pt) Processo para a preparação de uma espuma de poliuretano em placas de elevada elasticidade composição para uso com isocianato de elevado indice e baixo teor de água e espuma de poliuretano de elevada elasticidade
BR9408113A (pt) Processo para a preparação de espumas de poliuretana rígidas
ES2058389T3 (es) Procedimiento para la fabricacion de espumas en bloques blandas de poliuretano.
MY110496A (en) Polyurethane foams
BR9807217A (pt) Pré-polìmero terminado com isocianato, processo para sua preparação, e, espuma de poliuretano.
MX9302511A (es) Prepolimeros de poliisocianato liquido y proceso para su obtencion.
AR004593A1 (es) Composicion de poliisocianato organico y proceso para preparar una espuma flexible de poliuretano
DE59309634D1 (de) Spritzbeständiger wässriger schaum, dessen herstellung und verwendung
ES8203925A1 (es) Procedimiento para la fabricacion de espuma de elastomero decelulas abiertas y-o cerradas
AU4560300A (en) Polymer-modified polyols, their use for the manufacture of polyurethane products
BR0112327A (pt) Espuma de uretano flexìvel altamente resiliente e espumas moldadas flexìveis com base em isocianatos modificados com alofanato
CO4900094A1 (es) Composicion de prepolimeros y proceso para la preparacion de espumas con dicha composicion
KR950011493A (ko) 우레탄기를 함유하는 유동성이 개선된 반경질 발포체의 제조 방법
BR9909943A (pt) Espumas de poliuretano rìgidas e método para formar as referidas espumas usando dióis e trióis de peso molecular baixo
CA2111079A1 (en) Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization
CA2027354A1 (en) Polyisocyanate compositions and their use in the preparation of flexible polyurethane foams
ES2154027T3 (es) Procedimiento para la fabricacion de espumas duras de poliuretano expandidas con hidrocarburos.
AU2002227906A1 (en) Activators for the production of polyurethane foamed materials

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 990006

Country of ref document: ES