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:
May. 02, 1995
Filed:
Aug. 19, 1993
Applicant:
Inventors:
Osamu Watanabe, Joetsu, JP;
Motoyuki Yamada, Ohmiya, JP;
Fujio Yagihashi, Yokohama, JP;
Akira Yamamoto, Joetsu, JP;
Yoshinobu Isono, Nagaoka, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526313 ;
Abstract
A polystyrene type monodispersion polymer having at least a monomer unit represented by the following general formula (I), and having a molecular weight which lies in the range 500-500,000 and manufacturing process thereof are disclosed; ##STR1## where R is a hydrogen atom or methyl group, and the R in the molecule may be identical or different.