| 摘要 |
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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