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:
Mar. 19, 2002
Filed:
Nov. 16, 2000
Applicant:
Inventors:
Marc Herzog, Sausset les Pins, FR;
Jean-Pierre Isnard, Martigues, FR;
Claudine Lalanne-Magne, Saint Mitre les Remparts, FR;
Patrick Leaney, Bouc Bel Air, FR;
Myung-Je Shin, Anvers, BE;
Assignee:
BP Chemicals Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/40 ; C08F 1/000 ;
U.S. Cl.
CPC ...
C08F 2/40 ; C08F 1/000 ;
Abstract
A process for the gas phase polymerization of one or more alpha-olefins conducted in the presence of a catalyst in a reactor having a fluidized bed, in which process, one or more zones having a temperature greater than the average bed temperature are formed at or in close proximity to the reactor wall, comprising the step of deactivating said zones by the introduction into the reactor of an effective quantity of carbon monoxide.