Flame-retardant polyurethane foam produced without additional bl

Details Flame-retardant polyurethane foam produced without additional bl Flame-retardant polyurethane foam produced without additional bl

1992-07-17

1993-12-07

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521103, 521106, 521107, 521123, 521126, 521127, 521155, 521154, 252609, C08J 904

Patent

active

052683931

ABSTRACT:
Flame-retardant polyurethane foam products are produced by mixing and reacting an organic phosphorus containing compound which will react with a polyisocyanate compound and produce a gaseous compound and a polyisocyanate compound in the presence of a polyurethane catalyst. No other blowing agent is necessary.
The flame-retardant polyurethane foam products may be used for thermal and sound-insulation, for cushioning, for molding useful objects and as a cavity filler.

REFERENCES:
patent: 4291129 (1981-09-01), Kennedy
patent: 4374207 (1983-02-01), Stone et al.
patent: 4755547 (1988-07-01), Pawloski
patent: 4831062 (1989-05-01), von Bonin
patent: 5110840 (1992-05-01), Blount

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