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. 10, 1998
Filed:
Oct. 27, 1995
Applicant:
Inventor:
Takashi Sakamoto, Niihama, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
5263297 ; 5263184 ; 5263077 ; 526332 ; 526342 ; 526347 ;
Abstract
The present invention is directed to methyl methacrylate polymer comprising methyl methacrylate units as a primary component, wherein the weight-average molecular weight of the polymer is in the range from 80,000 to 400,000, and the molecular weight between branching points calculated from the z-average molecular weight of the polymers is in the range from 30,000 to 1,000,000.