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:
Feb. 02, 1982
Filed:
Jun. 12, 1980
Applicant:
Inventor:
Joseph Odar, South Euclid, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 93 ; 526335 ; 5263401 ;
Abstract
Substantially linear and gel-free cis-1,4-polybutadiene is produced by polymerizing butadiene in the presence of a catalyst comprising a mixture of a cobalt compound, at least one organoaluminum compound and water, the improvement being the use of a cycloalkane having 5 to 8 carbon atoms in the ring and from 0.01 to 2 percent of a tetramethylbenzene or pentamethylbenzene as a polymerization regulator.