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:
Aug. 23, 2016
Filed:
Jun. 30, 2014
Applicant:
Bridgestone Corporation, Chuo-ku, TK;
Inventors:
Zengquan Qin, Copley, OH (US);
Jason T. Poulton, Akron, OH (US);
David M. Roggeman, North Royalton, OH (US);
Shigeaki Matsuo, Kodairashi, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 36/04 (2006.01); C08F 136/06 (2006.01); C08F 236/06 (2006.01); C08F 4/70 (2006.01);
U.S. Cl.
CPC ...
C08F 136/06 (2013.01); C08F 36/04 (2013.01); C08F 236/06 (2013.01);
Abstract
In general the present invention provides a process for forming conjugated diene polymer, the process comprising the step of polymerizing conjugated diene monomer in the presence of a catalytically effective amount of a catalyst composition formed by combining (a) a nickel-containing compound, (b) an alkylating agent, (c) a fluorine-containing compound, (d) a carboxylic acid, and (e) an alcohol.