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:
May. 13, 1997
Filed:
Sep. 21, 1995
Applicant:
Inventors:
Norbert Hafner, Linz, AT;
Wilfried T oltsch, Marchtrenk, AT;
Hans Ledwinka, St. Ulrich, AT;
Wolfgang Neissl, Lichtenberg, AT;
Assignee:
PCD Polymere Gesellschaft m.b.H., Schwechat-Mannsw orth, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
502120 ; 502117 ; 502152 ; 526160 ;
Abstract
Highly active catalysts, for olefin polymerization, from tetraneophylzirconium and partly hydroxylated metal oxides from group IIa, IIIa, IVa or IVb of the Periodic Table, which are essentially free from by-products.