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US 4,287,314 AGranted
Maleimide-styrene copolymer blend with polyurethane
AssigneeArco Polymers, Inc.
InventorRonald A. Fava
Life of this patent
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Abstract
An advantageous blend suitable for compression molding, injection molding, or general molding of plastic articles is prepared by mechanically mixing at an elevated controlled temperature a polyurethane resin and a resin derived from copolymerization maleimide and styrene.
Claims3
A thermoplastic composition for molding of plastic articles consisting of a blend of
- A. polyurethane
- B. a resin containing 5 to 35% maleimide and 65 to 95% styrene each of components A and B being present in a weight concentration within a range from 40% to 60%.
Dependencies are inferred from the claim text.