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. 22, 2008
Filed:
Aug. 24, 2006
Adel Farhan Halasa, Bath, OH (US);
Wen-liang Hsu, Cuyahoga Falls, OH (US);
Chad Aaron Jasiunas, Copley, OH (US);
John Robert Zuppo, Iii, Copley, OH (US);
Lauire Elizabeth Austin, Hartville, OH (US);
Adel Farhan Halasa, Bath, OH (US);
Wen-Liang Hsu, Cuyahoga Falls, OH (US);
Chad Aaron Jasiunas, Copley, OH (US);
John Robert Zuppo, III, Copley, OH (US);
Lauire Elizabeth Austin, Hartville, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
The present invention is directed to an amine containing catalyst system for synthesizing rubbery polymers, such as polybutadiene rubber and styrene-butadiene rubber, having a high trans microstructure. The catalyst system, in one embodiment, includes (a) an organolithium compound, (b) a group IIa metal salt, (c) an organoaluminum compound, and (d) an amine compound which can be selected from (1) a heterocyclic aromatic compound which includes a ring structure with one or more nitrogen atoms as part of the ring; (2) a heterocyclic non-aromatic compound which includes a ring structure with two or more nitrogen atoms as part of the ring; (3) an aromatic compound including a ring structure substituted with at least one amine and at least one polar functionality containing group selected from a carboxyl group or a hydroxyl group; (4) a bicyclic chelating diamine compound; or (5) an aliphatic amine which includes a C-Calkyl group.