Polyurethane foams having low discoloration

Details Polyurethane foams having low discoloration Polyurethane foams having low discoloration

1981-04-17

1982-04-13

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 252609, 521117, 521166, 521170, 521906, C08G 1814

Patent

active

043248659

ABSTRACT:
Polyurethane foams prepared with chlorinated oligomeric phosphate ester or tris(dichloropropyl) phosphate flame retardants have low scorch and surface discoloration by addition of a mixture of phenothiazine and 4,4'-thio-bis(6-tertiary butyl meta cresol).

REFERENCES:
patent: 3706680 (1972-12-01), Booth
patent: 4143219 (1979-03-01), Hensch
patent: 4275173 (1981-06-01), Hinze

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