ES2115687T3 - Procedimiento para la obtencion de plasticos celulares suaves de poliuretano exentos de hidrocarburos fluorclorados con empleo de mezclas de poliisocianato que contienen grupos uretano a base de diisocianato de difenilmetano, asi como mezclas de poliisocianatos modificadas de - Google Patents

Procedimiento para la obtencion de plasticos celulares suaves de poliuretano exentos de hidrocarburos fluorclorados con empleo de mezclas de poliisocianato que contienen grupos uretano a base de diisocianato de difenilmetano, asi como mezclas de poliisocianatos modificadas de

Info

Publication number
ES2115687T3
ES2115687T3 ES93101611T ES93101611T ES2115687T3 ES 2115687 T3 ES2115687 T3 ES 2115687T3 ES 93101611 T ES93101611 T ES 93101611T ES 93101611 T ES93101611 T ES 93101611T ES 2115687 T3 ES2115687 T3 ES 2115687T3
Authority
ES
Spain
Prior art keywords
polyisocyanate mixtures
weight
groups
diphenylmethane
reacting
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
ES93101611T
Other languages
English (en)
Inventor
Heinz-Dieter Dr Lutter
Bernd Dr Bruchmann
Claudia Spang
Roland Dr Minges
Dietrich Dr Scherzer
Michael Lugmayr
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of ES2115687T3 publication Critical patent/ES2115687T3/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
    • 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
    • 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
    • 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
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • 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
    • C08G18/409—Dispersions of polymers of C08G in organic compounds having active hydrogen
    • 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
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy 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
    • 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
    • C08G2110/0041—Foam properties having specified density
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

LOS OBJETOS DE LA INVENCION SON UN PROCEDIMIENTO PARA LA OBTENCION DE MATERIALES ESPUMOSOS BLANDOS DE POLIURETANOS LIBRES DE CFC MEDIANTE LA TRANSFORMACION DE A) COMPUESTOS DE POLIISOCIANATO LIQUIDOS QUE CONTIENEN GRUPOS URETANOS UNIDOS CON UN CONTENIDO EN GRUPOS NCO DEL 20 AL 30% EN PESO, QUE POR SU PARTE SON OBTENIDOS MEDIANTE LA TRANSFORMACION DE UNA MEZCLA DE DIISOCIANATOS DE DIFENILMETANO Y POLIISOCIANATO DE POLIFENIL LIMETILENO (MDI BRUTO) CON UN COMPUESTO DE POLIETER ON UN INDICE HIDROXILO DE 120 A 25 DE AL MENOS UN POLIOXIPROPILENGLICOL Y AL MENOS UN POLIOXIPROPILEN POLIOXIETELEN TRIFUNCIONAL, CON UN CONTENIDO EN UNIDADES DE OXIDO DE ETILENO DEL 90 HASTA EL 10% EN PESO; O MEDIANTE LA TRANSFORMACION DE 4,4'' ROS MDI CON LOS COMPUESTOS DE POLIETER UN CASI PREPOLIMERO QUE CONTIENE GRUPOS NCO Y LA DILUCION DE ESTOS CASI PREPOLIMEROS CON MDI BRUTO, CON B) COMPUESTOS DE POLIHIDROXILO DE ALTO PESO MOLECULAR Y, DADO EL CASO, C) AGENTES PROLONGADORES DE CADENA Y/O RETICULANTES DE BAJO PESO MOLECULAR EN PRESENCIA DE D) PROPELENTES, E) CATALIZADORES ASI COMO, DADO EL CASO, F) MEDIOS AUXILIARES Y/O ADITIVOS, Y LOS COMPUESTO DE POLIISOCIANATO (A) MODIFICADOS CON GRUPOS URETANO APLICABLES SEGUN LA INVENCION.
ES93101611T 1992-02-11 1993-02-03 Procedimiento para la obtencion de plasticos celulares suaves de poliuretano exentos de hidrocarburos fluorclorados con empleo de mezclas de poliisocianato que contienen grupos uretano a base de diisocianato de difenilmetano, asi como mezclas de poliisocianatos modificadas de Expired - Lifetime ES2115687T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4203918A DE4203918A1 (de) 1992-02-11 1992-02-11 Verfahren zur herstellung von fluorchlorkohlenwasserstoff-freien polyurethan-weichschaumstoffen unter verwendung von urethangruppen enthaltenden polyisocyanatmischungen auf diphenylmethan-diisocyanatbasis sowie derartige modifizierte polyisocyanatmischungen

Publications (1)

Publication Number Publication Date
ES2115687T3 true ES2115687T3 (es) 1998-07-01

Family

ID=6451385

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93101611T Expired - Lifetime ES2115687T3 (es) 1992-02-11 1993-02-03 Procedimiento para la obtencion de plasticos celulares suaves de poliuretano exentos de hidrocarburos fluorclorados con empleo de mezclas de poliisocianato que contienen grupos uretano a base de diisocianato de difenilmetano, asi como mezclas de poliisocianatos modificadas de

Country Status (9)

Country Link
US (1) US5494941A (es)
EP (1) EP0555742B1 (es)
JP (1) JPH05271378A (es)
KR (1) KR100270012B1 (es)
AT (1) ATE165851T1 (es)
CA (1) CA2089204C (es)
DE (2) DE4203918A1 (es)
DK (1) DK0555742T3 (es)
ES (1) ES2115687T3 (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411781A1 (de) * 1994-04-06 1995-10-12 Basf Ag Verfahren zur Herstellung von Fluorchlorkohlenwasserstoff freien hochelastischen Polyurethan-Weichschaumstoffen und hierfür verwendbare, mit Urethangruppen modifizierte Polyisocyanatmischungen auf Diphenylmethan-diisocyanatbasis
DE4436495A1 (de) * 1994-10-12 1996-04-18 Gore W L & Ass Gmbh Verfahren zur Abdichtung von Schuhen im Sohlenbereich
DE19501198A1 (de) * 1995-01-17 1996-07-18 Bayer Ag Verwendung eines Folienverbundkörpers als selbsttragendes Bauteil im Automobilbereich
US6322722B1 (en) * 1996-12-19 2001-11-27 The Dow Chemical Company Use of bo polyols to improve compatibility of pentane and cyclopentane in rigid polyurethane foams
US7576909B2 (en) 1998-07-16 2009-08-18 Imra America, Inc. Multimode amplifier for amplifying single mode light
US7656578B2 (en) * 1997-03-21 2010-02-02 Imra America, Inc. Microchip-Yb fiber hybrid optical amplifier for micro-machining and marking
US6090864A (en) * 1997-04-25 2000-07-18 Basf Corporation Polymeric MDI prepolymer composition and flexible foams prepared therefrom
US5877227A (en) * 1997-08-11 1999-03-02 Imperial Chemical Industries Plc Low density flexible polyurethane foams
DE19735488A1 (de) * 1997-08-16 1999-02-18 Basf Ag Verfahren zur Herstellung von Polyurethan-Weichschaumstoffen
US6275512B1 (en) 1998-11-25 2001-08-14 Imra America, Inc. Mode-locked multimode fiber laser pulse source
KR20000012279A (ko) * 1999-11-16 2000-03-06 최수현 냉장/냉동고 벽체용 바이오우레탄 조성물 및 그 조성물을이용한 냉장/냉동고 벽체
KR20010054080A (ko) * 1999-12-03 2001-07-02 조형래 고탄성 발포우레탄수지의 제조방법
JP2003520873A (ja) 2000-01-17 2003-07-08 ハンツマン・インターナショナル・エルエルシー フリーライズまたはスラブストック軟質ポリウレタンフォームの製造方法
US6954575B2 (en) * 2001-03-16 2005-10-11 Imra America, Inc. Single-polarization high power fiber lasers and amplifiers
DE10247789A1 (de) * 2002-10-14 2004-04-22 Bayer Ag Zellige Polyurethanelastomere, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10314762A1 (de) † 2003-03-31 2004-10-14 Basf Ag Verfahren zur Herstellung von Polyurethan-Weichschaumstoffen
DE10352876A1 (de) * 2003-11-10 2005-06-23 Basf Ag Verfahren zur Herstellung von Polyurethan-Weichschaumstoffen
US8658709B2 (en) * 2006-03-24 2014-02-25 Huntsman International Llc Process for making a polyurethane foam
CA2701986C (en) * 2007-10-26 2016-12-13 Basf Se Polyurethane lamination resin, laminate containing the polyurethane lamination resin, and skis or snowboards containing the laminate
EP2268692B1 (en) * 2008-04-17 2017-08-16 Dow Global Technologies LLC Polyurethane elastomers from renewable resources
EP2635617B1 (en) * 2010-11-03 2018-12-26 Dow Global Technologies LLC Self-crushing polyurethane systems
US9695266B2 (en) * 2013-03-06 2017-07-04 Foamtec International Co., Ltd. Wettable, high strength foam especially for ink holders
US9908984B2 (en) * 2013-03-15 2018-03-06 Basf Se Flame retardant polyurethane foam and method for producing same
US10875956B2 (en) * 2013-07-16 2020-12-29 Basf Se Isocyanate prepolymer composition and crosslinked polyurethane prepared therefrom
EP3263620B1 (en) * 2016-06-30 2019-03-13 Polytex Sportbeläge Produktions-GmbH Pu flooring production for a sports field
JP6534428B2 (ja) * 2017-07-10 2019-06-26 日本発條株式会社 クッション材
CN109232844A (zh) 2017-07-10 2019-01-18 日本发条株式会社 缓冲材料、座席用缓冲材料和座席

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL269798A (es) * 1960-10-03
BE670426A (es) * 1964-10-02
US3441523A (en) * 1964-11-12 1969-04-29 Allied Chem Filled cellular urethanes
DE1618380C3 (de) * 1967-03-08 1975-09-11 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung eines bei Raumtemperatur flüssigen Diphenylmethan-diisocyanatpräparates
FR2129823B1 (es) * 1971-03-15 1974-03-01 Ugine Kuhlmann
LU65918A1 (es) * 1971-10-06 1973-01-15
GB1430455A (en) * 1973-01-29 1976-03-31 Ici Ltd Isocyanate compositions
GB1369334A (en) * 1973-06-05 1974-10-02 Ici Ltd Liquid isocyanate compositions
GB1450660A (en) * 1974-04-03 1976-09-22 Ici Ltd Polyisocyanates
GB1444192A (en) * 1974-04-03 1976-07-28 Ici Ltd Polyisocyanate compositions
SE7503966L (sv) * 1974-04-19 1975-10-20 Naphtachimie Sa Sett att framstella polyuretanskum.
US3968089A (en) * 1974-11-18 1976-07-06 Jefferson Chemical Company, Inc. Polymer-prepolymer composition prepared by polymerizing an ethylenically unsaturated monomer in the presence of an isocyanate-terminated prepolymer
GB1483957A (en) * 1975-05-19 1977-08-24 Ici Ltd Diphenylmethane diisocyanate compositions
DE2624526B2 (de) * 1976-06-01 1981-06-25 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von modifizierten Polyisocyanaten der Diphenylmethanreihe
US4055548A (en) * 1976-09-17 1977-10-25 The Upjohn Company Storage-stable liquid polyisocyanate composition
GB1596469A (en) * 1978-04-11 1981-08-26 Ici Ltd Liquid isocyanate compositions based on diphenylmethane diisocyanate
DE2815579A1 (de) * 1978-04-11 1979-10-25 Basf Ag Verfahren zur herstellung von polyurethan-weichschaumstoffen
EP0010850B2 (en) * 1978-10-03 1990-01-31 Imperial Chemical Industries Plc Liquid polyisocyanate compositions
US4237240A (en) * 1979-04-09 1980-12-02 Basf Aktiengesellschaft Process for the manufacture of flexible polyurethane foams with high load-bearing and high energy-absorption capacity
DE3066568D1 (en) * 1979-07-11 1984-03-22 Ici Plc Prepolymers, polyisocyanate compositions prepared therefrom and their use in the preparation of polyurethane foams
GB2109803A (en) * 1981-02-26 1983-06-08 Ici Plc High molecular weight polyether polyols
DE3231497A1 (de) * 1982-08-25 1984-03-01 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von kompakten, waermebestaendigen urethan- und isocyanuratgruppen enthaltenden kunststoffen
DE3241450A1 (de) * 1982-11-10 1984-05-10 Basf Ag, 6700 Ludwigshafen Fluessige urethangruppen enthaltende polyisocyanatmischungen auf diphenylmethan-diisocyanat-basis, verfahren zu deren herstellung und deren verwendung zur herstellung von polyurethan-weichschaumstoffen
EP0116309A1 (en) * 1983-01-17 1984-08-22 Basf Wyandotte Corporation Flexible polyurethane foams having high indentation load deflection prepared from polyol blends
US4937012A (en) * 1985-01-25 1990-06-26 Basf Corporation Low temperature stable polymethylene polyphenylene polyisocyanates
US4738991A (en) * 1987-01-23 1988-04-19 Basf Corporation Storage stable polyisocyanates characterized by allophanate linkages
US4888365A (en) * 1987-02-12 1989-12-19 Basf Corporation Isocyanate terminated quasi-prepolymers useful for preparing polyurethane/polyisocyanurate foams having low thermal conductivity
US4743626A (en) * 1987-09-14 1988-05-10 Basf Corporation Liquid carbodiimide-uretonimine modified polymethylene polyphenylene polyisocyanates and polyurethane foams made therefrom
DE3818769A1 (de) * 1988-06-02 1989-12-07 Bayer Ag Fluessige polyisocyanatmischungen, ein verfahren zu ihrer herstellung und ihre verwendung zur herstellung von polyurethan-weichschaumstoffen
GB8908490D0 (en) * 1989-04-14 1989-06-01 Ici Plc Prepolymers
IT1229755B (it) * 1989-05-17 1991-09-10 Montedipe Spa Composizioni poliisocianiche e loro impiego nella preparazione di schiume poliuretaniche flessibili.
DE3942329A1 (de) * 1989-12-21 1991-06-27 Basf Ag Verfahren zur herstellung von polyurethan-weichschaumstoffen mit geringer stauchhaerte und hierfuer verwendbare blockpolyoxypropylen-polyoxyethylen-polyolgemische
DE4001556A1 (de) * 1990-01-20 1991-07-25 Bayer Ag Neue polyisocyanatmischungen und ihre verwendung bei der herstellung von weichen polyurethan-schaumstoffen

Also Published As

Publication number Publication date
ATE165851T1 (de) 1998-05-15
EP0555742A2 (de) 1993-08-18
DE59308484D1 (de) 1998-06-10
EP0555742A3 (en) 1993-10-27
CA2089204A1 (en) 1993-08-12
KR100270012B1 (ko) 2000-10-16
DK0555742T3 (da) 1998-10-07
US5494941A (en) 1996-02-27
KR930017952A (ko) 1993-09-20
EP0555742B1 (de) 1998-05-06
JPH05271378A (ja) 1993-10-19
CA2089204C (en) 1998-05-12
DE4203918A1 (de) 1993-08-12

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