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:
Dec. 02, 2003
Filed:
Feb. 01, 2001
Applicant:
Inventors:
Daniel Claude Durand, Martigues, FR;
Estelle Marie Joelle Meurice, St Mitre-les-remparts, FR;
Frederic Robert Marie Michel Morterol, Sausset-les-Pins, FR;
Assignee:
BP Chemicals Limited, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D 7/00 ; C23C 1/644 ; C08F 2/34 ; C08F 4/00 ;
U.S. Cl.
CPC ...
B05D 7/00 ; C23C 1/644 ; C08F 2/34 ; C08F 4/00 ;
Abstract
A continuous process for gas phase coating of polymerization catalyst. The polymerization catalyst is introduced in a gas phase plug flow type reactor wherein it is submitted to polymerization conditions in the presence of at least one monomer such that at least 95% by weight of the produced coated catalysts have a coating yield comprised between 0.5 to 2 times the average coating yield.