Color stable integral skin foam

Details Color stable integral skin foam Color stable integral skin foam

1979-12-19

1980-12-30

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 37N, 521126, 521127, C08G 1814, C08G 1824, C08G 1875

Patent

active

042424631

ABSTRACT:
This disclosure relates to a new color stable integral skin polyurethane foam and method of producing the same wherein an integral skin foam is provided which will not "yellow" or change color severely when exposed to ultraviolet light or other visible radiation. The foam composition in its most basic aspect involves the combination of a polyol, an isocyanate, and a crosslinker or chainextender, with a catalyst comprised of stannous octoate and dimethyltin dilaurate. Other ingredients such as a blowing agent, a pigment, an ultraviolet stabilizer, an anti-oxidant, and an anti-ozonant may be added depending upon the final properties desired.

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