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:
Sep. 30, 2014
Filed:
Mar. 26, 2012
Lee Douglas Henderson, Calgary, CA;
Peter Phung Minh Hoang, Calgary, CA;
Ian Ronald Jobe, Calgary, CA;
Xiaoliang Gao, Calgary, CA;
Lee Douglas Henderson, Calgary, CA;
Peter Phung Minh Hoang, Calgary, CA;
Ian Ronald Jobe, Calgary, CA;
Xiaoliang Gao, Calgary, CA;
Nova Chemicals (International) S.A., Fribourg, CH;
Abstract
A dual catalyst system comprising a phosphinimine ligand containing catalyst and phenoxide ligand (preferably a salicylaldimine) on a support treated with a metal salt has improved reactor continuity in a dispersed phase reaction in terms of initial activation and subsequent deactivation The resulting catalyst has a lower consumption of ethylene during initiation and a lower rate of deactivation. Preferably the catalyst is used with an antistatic agent.