Flame-resistant rigid foams based on isocyanate

Details Flame-resistant rigid foams based on isocyanate Flame-resistant rigid foams based on isocyanate

C - Chemistry, Metallurgy

08

L

C08L 75/04 (2006.01) C08G 18/28 (2006.01) C08K 5/05 (2006.01)

Patent

CA 2182714

Flame-resistant rigid foams based on isocyanate Abstract Flame-resistant rigid foams based on isocyanate are produced by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound containing hydrogen atoms reactive toward isocyanates and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents, e) catalysts f) at least one bromine-containing flame retardant and, if desired, g) further auxiliaries and/or additives, wherein predominantly tribromoneopentyl alcohol is used at bromine-containing flame retardant and the crosslinking index of all compounds containing hydrogen atoms reactive toward isocyanates, including the bromine-containing flame retardant, is at least 3Ø The rigid foams based on isocyanate and produced by this process can be used as insulation materials.

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