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:
Oct. 04, 1977
Filed:
Mar. 26, 1976
Applicant:
Inventors:
Yung-Kang Wei, Sarnia, CA;
Zbigniew Jack Lobos, Sarnia, CA;
Assignee:
Polysar Limited, Sarnia, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 46 ; 526 16 ; 526298 ; 526312 ; 526338 ;
Abstract
Synthetic rubber compositions of improved green strength are prepared by reacting a rubbery polymer containing small amounts of tertiary amine groups bound in the polymer chain with a dihalogen compound having halogen groups located in the molecule of the compound in conjugated relationship to a carbonyl group. An example of a suitable rubbery polymer is a terpolymer of butadiene, styrene and dimethylanunoethyl methacrylate. An example of a suitable dihalogen compound is 4,4'-bis (bromoacetyl) diphenyl.