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:
Oct. 14, 1997
Filed:
Jan. 19, 1996
Applicant:
Inventors:
Sirpa Ala-Huikku, Helsinki, FI;
Pekka Sormunen, Porvoo, FI;
Assignee:
Neste Oy, Kulloo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502115 ; 502104 ; 502111 ; 502120 ; 502124 ; 502125 ; 502126 ; 502127 ; 502132 ; 502134 ; 5261246 ;
Abstract
An olefin polymerization catalyst composition is prepared by adding an organometallic compound of a group IA to IIIA metal to a procatalyst containing a support impregnated with TiCl.sub.4 but without using free TiCl.sub.4 to impregnate the support. The procatalyst is prepared by stirring a carrier with magnesium dichloride and a titanium tetralkoxide in a hydrocarbon solvent containing an electron donor, evaporating the solvent and the donor to form a free-flowing powder and chlorinating the titanium tetralkoxide with an alkyl aluminum chloride.