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US 5,210,103 AGranted
Volatile silicone oil-blown integral skin foam
AssigneeBASF SE
InventorsValeri L. Valoppi, Oscar M. Grace, Joe C. Wilson
Life of this patent
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Abstract
The present invention relates to integral skin foams prepared without using halogenated hydrocarbons as blowing agents. The foams of the present invention are prepared using water and volatile silicone fluids as co-blowing agents. Useful silicone agents have boiling points at on below 100.degree. C.
Claims6
An integral skin polyurethane foam, comprising:
- A) an organic isocyanate;
- and,
- B) a resin component, comprising:
- i) a polyol selected from the group consisting of polyoxyalkylene polyether polyols, polyester polyols, graft copolymer dispersions, non-graft polymer dispersions, and mixtures thereof;
- ii) a chain extender and/or crosslinker;
- iii) a catalyst and/or mixture of catalysts capable of promoting urethane formation and optionally isocyanurate formation;
- iv) a co-blowing agent comprising water and a volatile silicone fluid having a boiling point at 760 mm of 100.degree. C. and an average kinematic viscosity of 0.65 centistokes;
- and,
- v) optionally a surfactant, fillers, flame retardants, and mixtures thereof.
6 more elements
Dependencies are inferred from the claim text.