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:
Feb. 16, 1993
Filed:
Jun. 26, 1990
Applicant:
Inventors:
Edgar C Baker, Bridgewater, NJ (US);
Francis G Stakem, Flemington, NJ (US);
Allen Noshay, East Brunswick, NJ (US);
Kiu H Lee, South Charleston, WV (US);
Arthur E Marcinkowsky, Charleston, WV (US);
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 88 ; 526113 ; 526157 ; 526339 ; 526901 ;
Abstract
An improved polymerization process for making essentially non-agglomerated ethylene polymers, especially EPR polymers, based on the use of a high activity vanadium catalyst, which utilizes an alkylated metal chain transfer agent to moderate the kinetics of the polymerization reaction so as to avoid formation of an undesirable amount of agglomerated polymer.