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. 09, 1990
Filed:
Apr. 13, 1988
Applicant:
Inventors:
Roy J Sampson, Guisborough, GB;
John W Kelland, Middlesborough, GB;
Frank T Kiff, Middlesborough, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502107 ; 502123 ; 502125 ; 502127 ; 502133 ; 526124 ;
Abstract
A transition metal composition is obtained by reacting the magnesium salt of a cycloalkyl carboxylic acid with a transition metal compound, and optionally a Lewis Base compound. The product may be used to produce an olefin polymerization catalyst by addition of for example an aluminium trialkyl and the resulting catalyst has a high activity and stereospecificity in an olefin polymerization process.