GB1390231A - Flexible polyurethane foams - Google Patents

Flexible polyurethane foams

Info

Publication number
GB1390231A
GB1390231A GB1259372A GB1259372A GB1390231A GB 1390231 A GB1390231 A GB 1390231A GB 1259372 A GB1259372 A GB 1259372A GB 1259372 A GB1259372 A GB 1259372A GB 1390231 A GB1390231 A GB 1390231A
Authority
GB
United Kingdom
Prior art keywords
polyurethane foams
march
flexible polyurethane
trimerization
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
GB1259372A
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
Priority to GB1259372A priority Critical patent/GB1390231A/en
Priority to AU53480/73A priority patent/AU5348073A/en
Publication of GB1390231A publication Critical patent/GB1390231A/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
    • 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
    • C08G18/09—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
    • C08G18/092—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture oligomerisation to isocyanurate 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
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Abstract

1390231 Polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 12 March 1973 [17 March 1972 19 April 1972] 12593/72 and 18113/72 Heading C3R Flexible polyurethane foams are prepared by reacting an organic polyisocyanate with a polyether polyol having a hydroxyl number of 15 to 56 in the presence of a blowing agent and a catalyst for the trimerization of isocyanates, the polyisocyanate being used so as to provide from 1À25 to 1À5 equivalents of isocyanate groups for each equivalent of active hydrogen. The polyisocyanates, polyethers, blowing agents and catalysts are those used conventionally in the art. In an example a flexible foam is made by mixing a poly-(oxypropylene-oxyethylene)triol of M.W. 5300, potassium acetate as trimerization catalyst, water and tolylene diisocyanate at an isocyanate index of 135.
GB1259372A 1972-03-17 1972-03-17 Flexible polyurethane foams Expired GB1390231A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1259372A GB1390231A (en) 1972-03-17 1972-03-17 Flexible polyurethane foams
AU53480/73A AU5348073A (en) 1972-03-17 1973-03-19 Polymeric materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1259372A GB1390231A (en) 1972-03-17 1972-03-17 Flexible polyurethane foams
GB1811372 1972-04-19

Publications (1)

Publication Number Publication Date
GB1390231A true GB1390231A (en) 1975-04-09

Family

ID=26249123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1259372A Expired GB1390231A (en) 1972-03-17 1972-03-17 Flexible polyurethane foams

Country Status (2)

Country Link
AU (1) AU5348073A (en)
GB (1) GB1390231A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166164A (en) 1977-12-05 1979-08-28 Basf Wyandotte Corporation Process for the preparation of carbodiimide-isocyanurate foams
US4829097A (en) * 1986-01-22 1989-05-09 Oy Lohja Ab Process for the preparation of an isocyanurate modified polyurethane foam and the resulting foam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4166164A (en) 1977-12-05 1979-08-28 Basf Wyandotte Corporation Process for the preparation of carbodiimide-isocyanurate foams
US4829097A (en) * 1986-01-22 1989-05-09 Oy Lohja Ab Process for the preparation of an isocyanurate modified polyurethane foam and the resulting foam

Also Published As

Publication number Publication date
AU5348073A (en) 1974-09-19

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Legal Events

Date Code Title Description
PS Patent sealed
434A Offer to surrender (sect. 34/1949)
4333 Proceeding terminated by surrender of patent under section 34 patents act 1949
433B Case decided by the comptroller ** patent revoked (sect. 33/1949)