GB1339442A - Polyurethane foams - Google Patents

Polyurethane foams

Info

Publication number
GB1339442A
GB1339442A GB1339442DA GB1339442A GB 1339442 A GB1339442 A GB 1339442A GB 1339442D A GB1339442D A GB 1339442DA GB 1339442 A GB1339442 A GB 1339442A
Authority
GB
United Kingdom
Prior art keywords
poly
iii
oxyethylene
triol
groups
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
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.)
Dunlop Holdings Ltd
Original Assignee
Dunlop Holdings 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 Dunlop Holdings Ltd filed Critical Dunlop Holdings Ltd
Priority claimed from GB1866371*[A external-priority patent/GB1356981A/en
Publication of GB1339442A publication Critical patent/GB1339442A/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

Abstract

1339442 Polyurethane foam DUNLOP HOLDINGS Ltd 2 June 1971 [19 June 1970] 18603/71 Heading C3R Flexible polyurethane foam is prepared by reacting a mixture of an organic polyisocyanate (I) and a mixture of polyols (II and III); II is a poly(oxyethylene)poly(oxypropylene)polyol in which 40-70% of the hydroxyl end groups are primary hydroxyl groups; III, which is present as an antishrink agent for the foam, is a poJy- (oxyalkylene) diol or triol derived from ethylene oxide and having a poly(oxyethylene) content of at least 20% by weight and is present at 2-40% by weight of the polyol component. II and III are different polyols. I may be crude tolylene diisocyanate or crude 4,4<SP>1</SP>-diisocyanatodiphenylmethane. II may be a poly(oxyethylene)poly- (oxypropylene)triol of M.W. 3000-6000. III may be triol of M.W. 2000-3500 in which 35-45% of the terminal OH groups are primary, e.g. a polyethylene glycol.
GB1339442D 1971-06-02 1970-06-19 Polyurethane foams Expired GB1339442A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1866371*[A GB1356981A (en) 1970-06-05 1971-06-02 Loading and closing containers

Publications (1)

Publication Number Publication Date
GB1339442A true GB1339442A (en) 1973-12-05

Family

ID=10116319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1339442D Expired GB1339442A (en) 1971-06-02 1970-06-19 Polyurethane foams

Country Status (2)

Country Link
GB (1) GB1339442A (en)
MY (1) MY7500280A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950694A (en) * 1989-06-29 1990-08-21 Union Carbide Chemicals And Plastics Company Inc. Preparation of polyurethane foams without using inert blowing agents
US5011908A (en) * 1988-07-12 1991-04-30 Arco Chemical Technology, Inc. Polymer polyol compositions and their use in the preparation of polyurethane foams
US5171759A (en) * 1988-07-12 1992-12-15 Arco Chemical Technology, L.P. Polymer polyol compositions and their use in the preparation of polyurethane foams
US5447965A (en) * 1993-06-02 1995-09-05 Imperial Chemical Industries Plc Method for the preparation of flexible polymeric foams
US5668378A (en) * 1993-12-07 1997-09-16 Polyol International B.V. Polyol compositions and their use in the preparation of high resilience polyurethane foams

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5011908A (en) * 1988-07-12 1991-04-30 Arco Chemical Technology, Inc. Polymer polyol compositions and their use in the preparation of polyurethane foams
US5171759A (en) * 1988-07-12 1992-12-15 Arco Chemical Technology, L.P. Polymer polyol compositions and their use in the preparation of polyurethane foams
US4950694A (en) * 1989-06-29 1990-08-21 Union Carbide Chemicals And Plastics Company Inc. Preparation of polyurethane foams without using inert blowing agents
US5447965A (en) * 1993-06-02 1995-09-05 Imperial Chemical Industries Plc Method for the preparation of flexible polymeric foams
US5668378A (en) * 1993-12-07 1997-09-16 Polyol International B.V. Polyol compositions and their use in the preparation of high resilience polyurethane foams
US5677361A (en) * 1993-12-07 1997-10-14 Polyol International B. V. Polyol compositions and their use in the preparation of high resilience polyurethane foams

Also Published As

Publication number Publication date
MY7500280A (en) 1975-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee