Carbodiimide-isocyanurate foams modified with ethoxylated...

Details Carbodiimide-isocyanurate foams modified with ethoxylated... Carbodiimide-isocyanurate foams modified with ethoxylated...

C - Chemistry, Metallurgy

08

G

403/12.1

C08G 18/50 (2006.01) C08G 18/09 (2006.01) C08G 18/16 (2006.01) C08G 18/48 (2006.01)

Patent

CA 1075850

CARRODIIMIDE-ISOCYANURATE FOAMS MODIFIED WITH ETHOXYLATED POLYOLS Abstract Of The Invention Rigid cellular foams are prepared by catalytically condensing an organic polyisocyanate in the presence of (a) a carbodiimide-promoting catalyst, (b) a trimerization catalyst, (c) a urethane catalyst, and (d) from 10 parts to 40 parts per 100 parts of polyisocyanate of a polyol mixture comprising (1) from 5 parts to 30 parts of a poly- oxyethylated polyhydric alcohol and (2) from 5 parts to 25 parts of a polyoxyethylated phosphate polyol.

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