Flexible high resilience polyurethane foam

Details Flexible high resilience polyurethane foam Flexible high resilience polyurethane foam

C - Chemistry, Metallurgy

08

L

C08L 75/08 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08G 18/74 (2006.01) C08G 18/76 (2006.01) C08J 9/08 (2006.01) B60R 13/02 (2006.01)

Patent

CA 2164572

The invention discloses a flexible high-resilience polyurethane foam which has improved impact resilience and compression set, excellent effect on the reduction of transmissibility at 6 Hz and also improved mechanical strengths even under a reduced amount of a catalyst and is prepared by using, as an organic polyisocyanate composition, a mixture having a specified ratio of tolylene diisocyanate to polymethylenepolyph enyl isocyanate having a specific benzenoid composition or by using an isocyanate terminated prepolymer obtained by reacting the mixture with polyoxyalkylene polyol which has specific structure and is used for modification, and by using polyalkylene polyol which satisfies specific conditions in a hydroxyl value, monool content, and head-to-tail coupling selectivity; and a preparation process of the flexible high resilience polyurethane foam.

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