Ignition resistant polyurethane foams with melamine

Details Ignition resistant polyurethane foams with melamine Ignition resistant polyurethane foams with melamine

1989-09-27

1992-02-04

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 94, 521110, 521128, 521136, 521164, 521166, 521168, 521906, C08G 6814, C08J 900

Patent

active

050860828

ABSTRACT:
Improved ignition resistant, flexible, open-celled polyurethane foams are described. The foams are formed in situ from the reaction, in the presence of a catalyst, of an isocyanate, one or more blowing agents including water, a foam stabilizer, a polyether polyol, melamine, and a standard flame retardant additive. Preferred standard flame retardants are halogenated phosphorus esters and a blend of about 80 to 85% pentabromodiphenyl oxide in an aromatic phosphate plasticizer. The melamine is present in the foam formulations in an amount of from 30 to 40 parts by weight per 100 parts by weight of polyol. The standard flame retardant is present in an amount of from 15 to 25 parts by weight per 100 parts by weight of polyol. The compositions of the invention are particularly suitable for use in furniture, bedding, and carpet padding.

REFERENCES:
patent: 4745133 (1988-05-01), Grinbergs et al.
patent: 4757093 (1988-07-01), Ricciardi et al.
patent: 4810729 (1989-03-01), Davis et al.
patent: 4826884 (1989-05-01), Grace et al.
patent: 4849459 (1989-07-01), Grace et al.
patent: 4892893 (1990-01-01), Grace
Grace et al. (BASF Corporation), 12th Int'l Conf. on Fire Safety, Jan. 12, 1987, pp. 19-31.

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