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:
Dec. 06, 2016
Filed:
Dec. 10, 2012
Applicant:
Bridgestone Corporation, Tokyo, JP;
Inventors:
Kevin M. McCauley, Akron, OH (US);
Terrence E. Hogan, Uniontown, OH (US);
William L. Hergenrother, Akron, OH (US);
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/69 (2006.01); C08C 19/44 (2006.01); C08G 18/32 (2006.01); C08G 18/73 (2006.01); C08C 19/22 (2006.01);
U.S. Cl.
CPC ...
C08G 18/69 (2013.01); C08C 19/44 (2013.01); C08G 18/3206 (2013.01); C08G 18/73 (2013.01); C08C 19/22 (2013.01); C08G 2380/00 (2013.01);
Abstract
A method for preparing a coupled polymer, the method comprising the steps of: (i) polymerizing monomer to form a reactive polymer; (ii) reacting the reactive polymer with a polyisocyanate having a functionality of X to form an intermediate polymer product; and (iii) reacting the intermediate polymer product with a polyol having a functionality of Y to form the coupled polymer product, where X+Y≧5.