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:
Jun. 16, 1981
Filed:
Jul. 03, 1979
Applicant:
Inventors:
Hiroyuki Minematsu, Niihama, JP;
Kojiro Matsumoto, Takarazuka, JP;
Tadashi Saeki, Niihama, JP;
Akira Kishi, Niihama, JP;
Assignee:
Sumitomo Naugatuck Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525264 ; 525316 ;
Abstract
A process for preparing a thermoplastic resin having excellent heat resistance, impact resistance and processability, which comprises emulsion polymerization of a mixture comprising a monomeric mixture consisting essentially of an .alpha.-alkylstyrene, methyl methacrylate and an unsaturated nitrile and a diene rubber latex containing particles of 400 to 900 A in particle size in an amount of not less than 30% by weight in the presence of a radical initiator, the weight proportion of the monomeric mixture and the diene rubber latex (solids) being from 60:40 to 95:5.