Flexible flame resistant polyurethane foams

Details Flexible flame resistant polyurethane foams Flexible flame resistant polyurethane foams

1987-10-23

1989-03-07

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521906, C08J 900, C08G 1848

Patent

active

048107298

ABSTRACT:
The invention pertains to flame retardant polyurethane foams prepared by the reaction of a polyoxyalkylene polyether polyol with toluene diisocyanate and a blowing agent wherein the flame retardant compound is selected from the group consisting of dicyandiamide, oxamide and biuret. The amount of flame retardant may range from about 25 weight percent of about 75 weight percent of the total composition.

REFERENCES:
patent: 2975146 (1961-03-01), Rogers et al.
patent: 3462517 (1969-08-01), Hansen et al.
patent: 3899454 (1975-08-01), Wagner et al.
patent: 4140667 (1979-02-01), Preston et al.
patent: 4176218 (1979-11-01), Demon et al.
patent: 4221877 (1980-09-01), Cuscurida et al.
patent: 4568705 (1986-02-01), Grace et al.

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