Halogenated phenolic polyols and rigid cellular compositions mad

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

1983-01-17

1984-05-15

Kight, III, John

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528139, 528140, 528154, C08G 836

Patent

active

044489528

ABSTRACT:
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 temperature. They are also useful in the preparation of modified rigid polyisocyanurate foams.

REFERENCES:
patent: 3891579 (1975-06-01), Cenker
patent: 4120847 (1978-10-01), Culbertson

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