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. 30, 2008
Filed:
Feb. 08, 2005
Olivier Miserque, Mont-Saint-Guibert, BE;
Daniel Siraux, Naast, BE;
Philippe Bodart, Clermont sous Huy, BE;
Olivier Miserque, Mont-Saint-Guibert, BE;
Daniel Siraux, Naast, BE;
Philippe Bodart, Clermont sous Huy, BE;
Total Petrochemicals Research Feluy, Feluy, BE;
Abstract
An olefin polymerisation process carried out in the presence of an anti-fouling agent and a chromium-type catalyst or Ziegler Natta catalyst; characterised in that the anti-fouling agent comprises an anti-fouling polymer having an average molecular weight (Mw) of greater than 1000 daltons and containing: (1) one or more blocks —(CH—CH—O)— where each k is in the range from 1 to 50; and (2) one or more blocks —(CH—CH(R)—(O)where R comprises an alkyl group having from 1 to 6 carbon atoms and each n is in the range from 1 to 50, and terminated by a R' and a R″ end groups, wherein R′ is OH or an alkoxy having from 1 to 6 carbon atoms and R″ is H or an alkyl having from 1 to 6 carbon atoms.