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:
Oct. 06, 2009
Filed:
Nov. 10, 2004
Applicant:
Benjamin M. Shaw, Calgary, CA;
Inventor:
Benjamin M. Shaw, Calgary, CA;
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/00 (2006.01); C08F 210/00 (2006.01); C08F 110/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of starting up a gas phase polymerization reactor, comprising controlling an amount of hydrocarbon absorbed in a polymer seedbed during startup to avoid formation of agglomerates or sheeting on an interior wall of the reactor. A system for of starting up a gas phase polymerization reactor, comprising a controller coupled to the polymerization reactor and controlling an amount of hydrocarbon absorbed in a polymer seedbed during startup to avoid formation of agglomerates or sheeting on an interior wall of the reactor.