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:
Aug. 26, 1997
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Daryll G Harrison, Calgary, CA;
P Scott Chisholm, Calgary, CA;
Assignee:
Novacor Chemicals Ltd., Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502120 ; 502103 ; 502117 ; 502152 ; 526129 ; 526160 ; 526901 ; 526943 ;
Abstract
A catalyst prepared by firstly depositing a large amount of aluminoxane on a particulate support, then depositing a small amount of monocyclopentadienyl zirconium trihalide on the support. The catalyst is active for the polymerization of ethylene, optionally with a minor amount of other alpha olefins such as butene or hexene, particularly in a gas phase process.