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:
Mar. 09, 1993
Filed:
Nov. 22, 1991
Applicant:
Inventors:
Laurent Duranel, Arthez de Bearn, FR;
Roger Spitz, St Syphorien d'Ozon, FR;
Thierry Soto, Lyons, FR;
Assignee:
Atochem, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502126 ; 502125 ; 502127 ; 526125 ;
Abstract
A cocatalyst for use in association with a catalytic component comprising a titanium compound and an internal electron donor on a magnesium halide support for the polymerization of propylene alone or propylene with ethylene or a C.sub.4 to C.sub.12 alpha-olefin, said cocatalyst consisting essentially of an organic aluminum compound and an external electron donor consisting essentially of a non-aromatic silane with two Si--O--C bonds and a monoether and/or a silane with a single Si--O--C bond and the resultant catalyst wherein such cocatalyst is combined with a catalytic component known for use in polymerizing propylene.