The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1998
Filed:
Dec. 03, 1996
Hiroaki Narisawa, Aichi, JP;
Masahiro Kaneko, Aichi, JP;
Mitsuo Kawata, Aichi, JP;
Syuichi Yamaguchi, Aichi, JP;
Shinichi Asai, Aichi, JP;
Makoto Someda, Aichi, JP;
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Abstract
A heat-resistant high-nitrile polymer composition obtained by the graft copolymerization of 100 parts by weight of a monomer mixture comprising 50 to 80% by weight of an unsaturated nitrile monomer, a maleimide monomer, an aromatic vinyl monomer, and a monomer copolymerizable with the foregoing monomers, in the presence of 1 to 40 parts by weight of a conjugated diene-based synthetic rubber containing not less than 50% by weight of a conjugated diene monomer unit, wherein the concentration of residual maleimide monomer in the polymer composition is not greater than 200 ppm by weight. This polymer composition is suitable for use as a molding material for extrusion molding, blow molding, injection molding and the like, and is useful in applications which require gas barrier properties, chemical resistance, non-adsorptive properties and the like, and which require use in automobiles, heat resistance sufficient for heat filling, and safety and hygienic properties.