Phenolic polyols and rigid cellular compositions derived therefr

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

1984-02-17

1984-09-25

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521124, 521125, 521127, 521902, 528129, 528139, 528140, 528154, C08G 1800, C08G 836

Patent

active

044736690

ABSTRACT:
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 preparation of modified rigid polyisocyanurate foams.

REFERENCES:
patent: 3661814 (1972-05-01), Smith et al.
patent: 3674732 (1972-07-01), Pitzodis et al.
patent: 4120847 (1978-10-01), Culbertson
patent: 4390641 (1983-06-01), Smith

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