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. 20, 1998
Filed:
Aug. 23, 1996
Applicant:
Inventors:
John R Johnson, Euclid, OH (US);
James D Burrington, Mayfield, OH (US);
Assignee:
The Lubrizol Corporation, Wickliffe, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526172 ; 5263487 ; 585510 ; 585527 ; 585530 ;
Abstract
Phosphotungstic acid salts are used to polymerize C.sub.2 -C.sub.30 .alpha.-olefins and derivatives thereof to form highly reactive products having a high content of terminal vinylidene groups and .beta.-isomers in resonance therewith. Isobutylene has been polymerized to form a Mn 300-20,000 polymer.
Johnson, John. (1998). Heteropolyacid catalyzed polymerization of olefins (U.S. Patent No. 5710225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5710225
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile