C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
403/18
C08J 9/14 (2006.01) C08G 18/40 (2006.01) C08K 5/3492 (2006.01) C08K 5/5333 (2006.01)
Patent
CA 1338411
The present invention relates to a process for the preparation of polyurethane foams comprising reacting poly- isocyanates with compounds having a molecular weight of from 400 to 10,000 and containing at least two isocyanate-reactive hydrogen atoms, in the presence of water and/or organic blowing agents, catalysts, melamine as a flameproofing agent, and phosphonic acid ester flameproofing agents selected from the group consisting of compounds having the general formulas Image , Image , Image , wherein R1 ls C1-C6 alkyl, C2-C6 unsaturated aliphatic, C5-C12 cycloalkyl, C7-C15 aralkyl, or C6-C12 aryl; R2 and R3 are independently C1-C6 alkyl, C2-C6 unsaturated aliphatic, C5-C12 cycloalkyl, C7-C15 aralkyl, or C6-C12 aryl, or R2 and R3 together are C2-C4 alkylene; R4 is C1-C6 alkylene, C5-C12 cycloalkylene, C7-C15 aralkylene, or C6-C12 arylene; R5 is C2-C6 alkylene, C5-C12 cycloalkylene, C7-C15 aralkylene, or C6-C12 arylene; and n is an integer of from 1 to about 100. The process is optionally carried out in the presence of compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of from 32 to 399, and known surface-active additives and auxiliaries.
614488
Haas Peter
Hettel Hans
Jacobs Gundolf
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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