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. 19, 2014
Filed:
Sep. 16, 2011
Applicants:
Peter Phung Minh Hoang, Calgary, CA;
Benjamin Milton Shaw, Calgary, CA;
Patrick Lam, Calgary, CA;
Victoria Ker, Calgary, CA;
Cliff Robert Baar, Calgary, CA;
Inventors:
Peter Phung Minh Hoang, Calgary, CA;
Benjamin Milton Shaw, Calgary, CA;
Patrick Lam, Calgary, CA;
Victoria Ker, Calgary, CA;
Cliff Robert Baar, Calgary, CA;
Assignee:
Nova Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/64 (2006.01); C08F 4/76 (2006.01); C08F 4/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for altering the polymer architecture of ethylene copolymers made with a supported phosphinimine polymerization catalyst. The method involves changing the amount of a catalyst modifier added to a reactor separately from or together with a supported phosphinimine polymerization catalyst.