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

1984-05-07

1985-11-26

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521124, 521127, 521136, 521158, C08J 914

Patent

active

045555303

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: 3242107 (1966-03-01), Bunze et al.
patent: 3432457 (1969-03-01), Robins
patent: 3546253 (1970-12-01), Carpenter et al.
patent: 3632531 (1972-01-01), Rush et al.
patent: 3661814 (1972-05-01), Smith et al.
patent: 3674732 (1972-07-01), Pitzalis et al.
patent: 3948824 (1976-04-01), Robins
patent: 4293658 (1981-10-01), Raden et al.

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