Manufacture of cellular polymers and compositions therefor

Details Manufacture of cellular polymers and compositions therefor Manufacture of cellular polymers and compositions therefor

C - Chemistry, Metallurgy

08

J

C08J 9/00 (2006.01) C08G 18/66 (2006.01) C08J 9/04 (2006.01) C08J 9/14 (2006.01) C08L 101/02 (2006.01)

Patent

CA 2063688

E 36280T ABSTRACT Manufacture Of Cellular Polymers And Compositions Therefor A method for the preparation of a flexible foam, an integral skin foam or a microcellular elastomer by reacting an organic polyisocyanate and an isocyanate-reactive composition comprising at least one isocyanate-reactive compound of molecular weight of 1000 to 10000 and a functionality of 2 to 4 in the presence of a blowing agent, characterised in that the reaction is conducted in the presence of an inert, insoluble, organic liquid which has a boiling point of at least 60°C at 1 bar. CFC-free foams and elastomers of good quality are obtainable.

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