Non-cellular polyurethane composite

Details Non-cellular polyurethane composite Non-cellular polyurethane composite

1991-10-02

1993-10-19

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

36 25R, 428328, 428330, 428331, 4284239, 524507, 525130, B32B 516, B32B 2740

Patent

active

052544052

ABSTRACT:
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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