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:
Nov. 29, 2011
Filed:
Jan. 23, 2007
Christine Rademacher, Akron, OH (US);
Steven Luo, Copley, OH (US);
Zhong-ren Chen, Stow, OH (US);
Walter Tomaszewski, Canton, OH (US);
Edward Kelley, Tallmadge, OH (US);
Christine Rademacher, Akron, OH (US);
Steven Luo, Copley, OH (US);
Zhong-Ren Chen, Stow, OH (US);
Walter Tomaszewski, Canton, OH (US);
Edward Kelley, Tallmadge, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
Blends of syndiotactic 1,2-polybutadiene and rubbery elastomers are prepared by a process that comprises polymerizing 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within a rubber cement of an elastomeric terpolymer by using a chromium-based, molybdenum-based, or iron-based catalyst composition. Polymer composition comprising the blend with improved properties is also provided.