Non-cellular polyurethane composite

Details Non-cellular polyurethane composite Non-cellular polyurethane composite

C - Chemistry, Metallurgy

08

L

C08L 17/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2119462

2119462 9306991 PCTABS00021 A non-cellular polyurethane composite material comprising desiccated rubber particles embedded in a non-cellular matrix of polyurethane. Rubber particles derived from tires and other sources are combined with a desiccant to remove moisture present in the particles. The resulting desiccated rubber particles and desiccant are mixed with a polyol and isocyanate to form a precursor blend which is cured to produce a non-cellular polyurethane composite. The resulting rubber-polyurethane composite may be used for tires, shoe and boot soles, surface coatings, and other applications requiring a material which is structurally strong and wear resistant. The desiccated rubber particles may be premixed with the polyol and/or added simultaneously with the polyol and isocyanate during composite molding.

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