Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
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
044489510
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), Pitzalis et al.
patent: 4120847 (1978-10-01), Culbertson
Patton, Jr. John T.
Rupert John P.
BASF Wyandotte Corporation
Draper Garnette D.
Kight III John
Michaels Joseph D.
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