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:
Jun. 23, 1998
Filed:
Jun. 20, 1995
Applicant:
Inventors:
Thomas Garoff, Helsinki, FI;
Solveig Johansson, Stenungsund, FI;
Ulf Palmqvist, Porvoo, FI;
Daniel Lindgren, Hjalteby, FI;
Marita Sutela, Porvoo, FI;
Paivi Waldvogel, Porvoo, FI;
Arja Kostiainen, Porvoo, FI;
Assignee:
Borealis Polymers Oy, Porvoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502154 ; 502102 ; 502103 ; 502104 ; 502113 ; 502115 ; 502152 ; 502156 ; 502157 ; 502171 ; 502172 ;
Abstract
The invention relates to a procatalyst for the production of ethylene polymers, which procatalyst comprises an inorganic support, a chlorine compound carried on said support, a magnesium compound carried on said support, a titanium compound carried on said support, whereby the chlorine compound can be different from or the same as the magnesium compound and/or the titanium compound. The activity balance AB of the procatalyst in specified polymerization conditions, is