ES426729A1 - Polyurethane foams - Google Patents

Polyurethane foams

Info

Publication number
ES426729A1
ES426729A1 ES426729A ES426729A ES426729A1 ES 426729 A1 ES426729 A1 ES 426729A1 ES 426729 A ES426729 A ES 426729A ES 426729 A ES426729 A ES 426729A ES 426729 A1 ES426729 A1 ES 426729A1
Authority
ES
Spain
Prior art keywords
diphenylmethanediisocyanate
weight
polyurethane foams
polyether
translation
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
Application number
ES426729A
Other languages
Spanish (es)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES426729A1 publication Critical patent/ES426729A1/en
Expired 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
    • C08G18/28—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
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene end 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
    • C08G18/4804—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
    • 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
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • 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

Abstract

Process for obtaining a flexible polyurethane foam, characterized in that it comprises reacting, in the presence of a blowing agent, a polyether having at least two terminal hydroxyl groups with a diphenylmethanediisocyanate composition having an average isocyanate functionality of less than 2, 4, containing not more than 60% by weight of 4,4'-diphenylmethanediisocyanate and wherein at least 15% by weight of the content of diphenylmethanediisocyanate isomers consists of 2,4'-diphenylmethanediisocyanate. (Machine-translation by Google Translate, not legally binding)
ES426729A 1973-05-29 1974-05-29 Polyurethane foams Expired ES426729A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2536873A GB1422056A (en) 1973-05-29 1973-05-29 Polyurethane foams

Publications (1)

Publication Number Publication Date
ES426729A1 true ES426729A1 (en) 1976-07-01

Family

ID=10226542

Family Applications (1)

Application Number Title Priority Date Filing Date
ES426729A Expired ES426729A1 (en) 1973-05-29 1974-05-29 Polyurethane foams

Country Status (6)

Country Link
BE (1) BE815523A (en)
DE (1) DE2425657C2 (en)
ES (1) ES426729A1 (en)
FR (1) FR2231705B3 (en)
GB (1) GB1422056A (en)
IT (1) IT1012895B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202957A (en) * 1974-09-09 1980-05-13 The Upjohn Company Thermoplastic polyurethane elastomers from polyoxypropylene polyoxyethylene block copolymers
DE2647482A1 (en) * 1976-10-21 1978-04-27 Bayer Ag PROCESS FOR THE MANUFACTURING OF COLD-CARDING FOAMS CONTAINING URETHANE GROUPS
US4256849A (en) 1976-10-21 1981-03-17 Bayer Aktiengesellschaft Process for the production of cold setting foams which contain urethane groups prepared from a mixture of 4,4-diphenyl methane diisocyanate and 2,4-diphenyl methane diisocyanate
DE2717653C2 (en) * 1977-04-21 1988-05-26 Bayer Ag, 5090 Leverkusen Process for the production of cold-curing, flexible foams containing urethane groups
EP0031650B1 (en) * 1979-12-14 1984-10-03 Imperial Chemical Industries Plc Process for preparing liquid polyisocyanate compositions, and their use
US4603076A (en) * 1985-03-04 1986-07-29 Norwood Industries, Inc. Hydrophilic foam
DE3934098C1 (en) * 1989-10-12 1991-05-23 Bayer Ag, 5090 Leverkusen, De
DE3942329A1 (en) * 1989-12-21 1991-06-27 Basf Ag METHOD FOR PRODUCING POLYURETHANOUS FUEL GRAINS WITH LOW STERILIZED HAIR AND BLOCKPOLYOXYPROPYLENE POLYOXYETHYLENE POLYOL MIXTURES USES THEREOF
DE4127514A1 (en) * 1991-08-20 1993-02-25 Bayer Ag METHOD FOR PRODUCING POLYISOCYANATES FROM DISTILLATION RESIDUES OF THE TOLUYLENE DIISOCYANATE PRODUCTION
US5621016A (en) * 1992-04-16 1997-04-15 Imperial Chemical Industries Plc Polyisocyanate compositions and low density flexible polyurethane foams produced therewith
TW568921B (en) 1998-08-07 2004-01-01 Huntsman Int Llc Process for preparing a moulded flexible polyurethane foam
DE10111823A1 (en) 2001-03-13 2002-09-26 Basf Ag Preparation of soft polyurethane foam, useful e.g. in mattresses and furniture, using block polyoxypropylene-polyoxyethylene polyol with specific hydroxy number
DE102009033710A1 (en) 2009-07-18 2011-01-20 Evonik Goldschmidt Gmbh Use of metal salts of a carboxylic acid in the production of polyurethane systems
DE102010003672A1 (en) 2010-04-07 2011-10-13 Evonik Goldschmidt Gmbh Preparation and Use of Metal Salts of Alkyl Oxide and / or Aryl Alkoxylate Oligomers and Acid Terminated Polymers in the Preparation of Polyurethane Systems
DE102011110016A1 (en) 2011-08-11 2013-02-14 Evonik Goldschmidt Gmbh Composition comprising tin and / or zinc salts of ricinoleic acid and at least one further tin carboxylate and use of the composition in the production of polyurethane systems
DE102011110020A1 (en) 2011-08-11 2013-02-14 Evonik Goldschmidt Gmbh Formulation containing tin and / or zinc salts of ricinoleic acid, urea, polyethylene glycol and sugar alcohol and use of the formulation in the preparation of polyurethane systems
EP2752243A1 (en) 2013-01-04 2014-07-09 Evonik Industries AG Use of tin salts of neodecanoic acid in the production of polyurethane systems
DE102013201825A1 (en) 2013-02-05 2014-08-07 Evonik Industries Ag Composition for use in the manufacture of polyurethane systems
JP6741420B2 (en) * 2015-12-16 2020-08-19 株式会社ブリヂストン Flexible polyurethane foam for forming vehicle seat pads, and vehicle seat pads
CN108368228A (en) * 2015-12-16 2018-08-03 株式会社普利司通 Flexible polyurethane foams and seat cushion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362979A (en) * 1964-01-02 1968-01-09 Jefferson Chem Co Inc Mixtures of methylene-bridged polyphenyl polyisocyanates
GB1240708A (en) * 1967-07-31 1971-07-28 Upjohn Co Polyurethane foams

Also Published As

Publication number Publication date
DE2425657C2 (en) 1983-08-25
IT1012895B (en) 1977-03-10
FR2231705B3 (en) 1977-03-25
GB1422056A (en) 1976-01-21
BE815523A (en) 1974-11-25
DE2425657A1 (en) 1974-12-19
FR2231705A1 (en) 1974-12-27

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