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:
Jan. 12, 1993
Filed:
May. 15, 1992
Applicant:
Inventors:
Elizabeth M Stacy, Bartlesville, OK (US);
M Bruce Welch, Bartlesville, OK (US);
Shirley J Martin, Bartlesville, OK (US);
Max P McDaniel, Bartlesville, OK (US);
Dale E Pierce, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 64 ; 526107 ; 526125 ; 526129 ; 526135 ; 526156 ; 526352 ; 502103 ; 502108 ; 502117 ;
Abstract
A process for polymerizing olefins wherin a suitable amount of a fumed refractory oxide is used to improve the flow of particulate catalyst as a slurry of that catalyst is charged to the polymerization zone.