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. 25, 1986
Filed:
Aug. 14, 1985
Applicant:
Inventors:
Osamu Murai, Osaka, JP;
Noboru Moriyama, Wakayama, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526216 ; 5263471 ;
Abstract
An .alpha.-methylstyrene copolymer is produced by effecting the emulsion polymerization of .alpha.-methylstyrene and another co-monomer in the presence of a succinic acid derivative having a C8 to C40 alkenyl group or a salt thereof.
Murai, Osamu. (1986). Emulsion polymerization process for production of .alpha.-methylstyrene (U.S. Patent No. 4578441). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4578441
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile