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:
Oct. 05, 1976
Filed:
Nov. 05, 1974
Masayoshi Morimoto, Ichihara, JA;
Tetsutaro Sanjiki, Ichihara, JA;
Hideki Horiike, Ichihara, JA;
Takeo Oyamada, Ichihara, JA;
Sumitomo Chemical Company, Limited, Osaka, JA;
Abstract
A binary or ternary graft-copolymer excellent in both tensile strength and impact resistance is obtained by the process for producing a binary or ternary graft-copolymer consisting essentially of an ethylene-propylene rubber and an aromatic vinyl compound or of an ethylene-propylene rubber, an aromatic vinyl compound, and a vinyl cyanide compound, characterized by subjecting these materials to solution polymerization in a mixed solvent comprising an aliphatic hydrocarbon solvent capable of dissolving the ethylene-propylene rubber and a polar solvent capable of dissolving a poly-(aromatic vinyl compound) or a copolymer of the aromatic vinyl compound and the vinyl cyanide compound.