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. 16, 2018
Filed:
May. 01, 2013
Applicants:
Bridgestone Corporation, Tokyo, JP;
Terrence E. Hogan, Akron, OH (US);
William L. Hergenrother, Akron, OH (US);
David M. Roggeman, Akron, OH (US);
Inventors:
Terrence E. Hogan, Uniontown, OH (US);
William L. Hergenrother, Akron, OH (US);
David M. Roggeman, North Royalton, OH (US);
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 130/02 (2006.01); C08F 236/06 (2006.01); C08F 236/04 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C08F 230/02 (2006.01);
U.S. Cl.
CPC ...
C08F 236/06 (2013.01); C08F 236/04 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08F 230/02 (2013.01);
Abstract
Embodiments provide polydienes and diene copolymers having organophosphines functionality. Specific embodiments employ phosphorus-containing organometal initiators and copolymers prepared by anionically polymerizing conjugated diene monomer and vinyl organophosphine.