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:
Nov. 10, 1992
Filed:
Dec. 31, 1991
Applicant:
Inventors:
Frederick J Karol, Belle Mead, NJ (US);
Sun-Chueh Kao, Belle Mead, NJ (US);
Robert C Brady, III, Morristown, NJ (US);
Assignee:
Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526132 ; 526134 ; 526351 ; 556-8 ; 556 53 ; 502103 ; 502202 ;
Abstract
Methylene bridged derivatives of novel cyclopentadienyl dicarbollide complexes of titanium, zirconium and hafnium display high activity as ethylene polymerization catalysts in the absence of a cocatalyst.