Reduction of discoloration in flame retarded polyurethane foams

Details Reduction of discoloration in flame retarded polyurethane foams Reduction of discoloration in flame retarded polyurethane foams

1988-05-02

1988-12-27

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

25218213, 521128, 521163, C08G 1814

Patent

active

047941260

ABSTRACT:
Polyurethane foams containing halogenated phosphorus-based flame retardants are protected from scorching by the incorporation therein of an anti-scorch package which comprises a diaryl arylenediamine, the reaction product of a diarylamine and a lower alkyl ketone, and a hindered phenol.

REFERENCES:
patent: 3637573 (1972-01-01), Mine et al.
patent: 3798184 (1974-03-01), Cuscurida et al.
patent: 4130513 (1978-12-01), Reale et al.

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