Phenolic polyols and rigid cellular compositions derived...

Details Phenolic polyols and rigid cellular compositions derived... Phenolic polyols and rigid cellular compositions derived...

C - Chemistry, Metallurgy

08

G

402/40, 403/46

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

Patent

CA 1225496

PHENOLIC POLYOLS AND RIGID CELLULAR COMPOSITIONS DERIVED THEREFROM Abstract of the Disclosure Modified benzyl ether-containing resole polyols derived from phenol, paraformaldehyde and an aliphatic hydroxyl compound 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 temperature. They are also useful in the prepara- tion of modified rigid polyisocyanurate foams.

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