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:
Apr. 18, 1995
Filed:
Aug. 09, 1993
Applicant:
Inventors:
Howard W Turner, Webster, TX (US);
Gregory G Hlatky, Houston, TX (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
502155 ; 502103 ; 502117 ; 502152 ; 556-7 ; 556-8 ; 556 53 ; 526117 ; 526120 ; 526126 ; 526131 ;
Abstract
An ionic catalyst useful for the polymerization of olefins, diolefins and/or acetylenically unsaturated monomers is described. The catalyst comprises cyclopentadienyl derivatives of Group IV-B metals as cation and a compatible non-coordinating anion containing a plurality of boron atoms. Borate, carborate, borane, carborane, metallaborane and metallacarborane compounds exemplify anion sources and dihydrocarbyl-substituted bis(cyclopentadienyl) zirconium compounds exemplify the Group IV-B metal cation sources. Utility is illustrated for olefin polymerization.