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. 19, 2004
Filed:
Jun. 20, 2002
Applicant:
Inventors:
John D. Hottovy, Bartlesville, OK (US);
Harvey D. Hensley, Bartlesville, OK (US);
David J. Przelomski, Bartlesville, OK (US);
Teddy H. Cymbaluk, Bartlesville, OK (US);
Robert K. Franklin, III, Bartlesville, OK (US);
Ethelwoldo P. Perez, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/14 ;
U.S. Cl.
CPC ...
C08F 2/14 ;
Abstract
An olefin polymerization process wherein monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The product slurry is exposed to a pressure drop in a flash zone, producing a second slurry and vaporized diluent. The vaporized diluent produced in said flash chamber is condensed by heat exchange, without compression.