GB1340329A - Cushion foams - Google Patents

Cushion foams

Info

Publication number
GB1340329A
GB1340329A GB891370A GB1340329DA GB1340329A GB 1340329 A GB1340329 A GB 1340329A GB 891370 A GB891370 A GB 891370A GB 1340329D A GB1340329D A GB 1340329DA GB 1340329 A GB1340329 A GB 1340329A
Authority
GB
United Kingdom
Prior art keywords
triol
cyclic polyisocyanate
isocyanate
promote
catalyst
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
GB891370A
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB1340329A publication Critical patent/GB1340329A/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
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4816—Two or more polyethers of different physical or chemical nature mixtures of two or more 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
    • C08G18/70—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
    • 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
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/0058—≥50 and <150kg/m3
    • 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)
  • Polyurethanes Or Polyureas (AREA)

Abstract

1340329 Flexible polyurethane foams UNITED KINGDOM ATOMIC ENERGY AUTHORITY 19 April 1971 [24 Feb 1970] 8913/70 Heading C3R Flexible polyurethane foams are prepared by reacting a mixture comprising at least two polyether triols having differing molecular weights, the triol of lower M.W. having a maximum M.W. of 1700, a cyclic polyisocyanate composition comprising a cyclic polyisocyanate component amounting to at least 85% by weight of the composition and having two aromatic rings and two isocyanate groups per mol. of component, water, a catalyst to promote the isocyanate-water reaction, a catalyst to promote the isocyanate-triol reaction and a foamstabilizing agent. The triols are most preferably prepared by reacting propylene oxide with hexane triol and the mixture thereof suitably has a minimum average M.W. of 1200. The preferred cyclic polyisocyanate component is diphenylmethane diisocyanate which may be mixed with at least one cyclic polyisocyanate of higher frictionality. Tertiary amine and organometallic catalysts are used and the foam stabilizing agent is preferably a polydimethylsiloxanepolyoxyalkylene copolymer.
GB891370A 1970-02-24 1970-02-24 Cushion foams Expired GB1340329A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB891370 1970-02-24

Publications (1)

Publication Number Publication Date
GB1340329A true GB1340329A (en) 1973-12-12

Family

ID=9861737

Family Applications (1)

Application Number Title Priority Date Filing Date
GB891370A Expired GB1340329A (en) 1970-02-24 1970-02-24 Cushion foams

Country Status (1)

Country Link
GB (1) GB1340329A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138012A (en) * 1983-04-12 1984-10-17 Teroson Gmbh Flexible polyurethane foam for sound insulation purposes, process for the production and use thereof
WO1998016567A1 (en) * 1996-10-15 1998-04-23 Shell Internationale Research Maatschappij B.V. Polyol combination

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138012A (en) * 1983-04-12 1984-10-17 Teroson Gmbh Flexible polyurethane foam for sound insulation purposes, process for the production and use thereof
FR2545493A1 (en) * 1983-04-12 1984-11-09 Teroson Gmbh FLEXIBLE POLYURETHANE FOAM FOR SONIC ISOLATION, PROCESS FOR PRODUCTION THEREOF AND USE THEREOF
WO1998016567A1 (en) * 1996-10-15 1998-04-23 Shell Internationale Research Maatschappij B.V. Polyol combination

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees