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:
Jan. 26, 1993
Filed:
Mar. 30, 1992
Applicant:
Inventors:
Assignees:
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Nippon Steel Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
5263292 ;
Abstract
Molding materials of this invention comprise copolymers consisting essentially of 10 to 30% by weight of .alpha.-methylstryene units. 40 to 70% by weight of methyl methacrylate and 10 to 30% by weight of stryene units with a weight average molecular weight in the range from 50,000 to 200,000, a melt flow rate (MFR) in the range from 4 to 18 g./10 min. at 220.degree. C. under a 10-kg load, and a Vicat softening point of 130.degree. C. or more, show a high degree of transparency, good heat and weather resistance and good moldability and are best suited for such uses as automotive and electrical parts.