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US 4,374,951 AGranted
Polyblends comprising N-phenylmaleimide copolymers and SAN copolymers
AssigneeMonsanto Company
InventorsYoon C. Lee, deceased, Gary L. Deets, Quirino A. Trementozzi
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Abstract
Polyblends of N-phenyl maleimide copolymers and SAN copolymers within certain imide and acrylonitrile content ranges are found to have unique compatibility properties not displayed by related copolymer blends.
Claims5
A polyblend comprising:
- A. a copolymer having from 40 to 55% by weight of N-phenyl maleimide, from 0 to 10% by weight of acrylonitrile and from 35 to 60% by weight of a vinylaromatic monomer;
- and
- B. a copolymer of a vinyl aromatic monomer and from 20 to 40% by weight of acrylonitrile.
Dependencies are inferred from the claim text.