Halogenated phenolic polyols and rigid cellular compositions...

Details Halogenated phenolic polyols and rigid cellular compositions... Halogenated phenolic polyols and rigid cellular compositions...

C - Chemistry, Metallurgy

08

G

402/40, 403/46

C08G 8/36 (2006.01) C08G 8/06 (2006.01) C08G 18/54 (2006.01) C08J 9/06 (2006.01)

Patent

CA 1225495

HALOGENATED PHENOLIC POLYOLS AND RIGID CELLULAR COMPOSITIONS MADE THEREFROM Abstract of the Disclosure Modified benzyl ether-containing resole polyols derived from a phenolic component, a non-aqueous aldehyde, and a halogen-containing aliphatic hydroxyl component are prepared using a metal derivative as a catalyst. These polyols react with organic polyisocyanates to yield closed cell, low friability, low combustibility, rigid polyurethane foams without the need for post curing at elevated tempera- ture. They are also useful in the preparation of modified rigid polyisocyanurate foams.

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