Process for the production of flexible foams containing...

Details Process for the production of flexible foams containing... Process for the production of flexible foams containing...

C - Chemistry, Metallurgy

08

G

C08G 18/72 (2006.01) C08G 18/10 (2006.01) C08G 18/70 (2006.01) C08G 18/83 (2006.01) C08J 9/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2130322

PROCESS FOR THE PRODUCTION OF FLEXIBLE FOAMS CONTAINING URETHANE GROUPS ABSTRACT OF THE DISCLOSURE Flexible foams containing urethane groups are produced by reacting a reaction mixture comprising: 1) modified polyisocyanates, 2) compounds having molecular weights of 400 to 10,000 and containing at least two isocyanate-reactive hydrogen atoms, and 3) water and/or organic blowing agents. The modified polyisocyanates are prepared by reacting polyurethanes with polyisocyanates, in the presence of acylating and/or alkylating agents, It is also possible that the reaction mixture comprise: 4) compounds having molecular weights of 32 to 399 and containing at least two isocyanate-reactive hydrogen atoms as crosslinking agents.

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