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. 05, 1976
Filed:
Apr. 13, 1972
Applicant:
Inventor:
Clayton Trevor Elston, Kingston, CA;
Assignee:
Du Pont of Canada Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526169 ; 526280 ; 526281 ; 526336 ; 526352 ;
Abstract
A polymer of an alpha-olefin and at least one diene with low residual unsaturation and long chain branching and the process for preparing said polymer. The process comprises polymerizing an alpha-olefin (ethylene) with at least one diene in the presence of a coordination catalyst, the diene being selected from linear .alpha.,.omega.-dienes of at least eight carbon atoms (1,7-octadiene) and cyclic endomethylenic dienes (bicyclo(2,2,1)-2-5-heptadiene, dinorbornene), the diene being characterized in that each one of the two double bonds is readily polymerizable.