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:
Apr. 03, 2001
Filed:
Apr. 05, 1995
Applicant:
Inventors:
Clyde E. Bishop, Hockessin, DE (US);
Robert L. Jones, Jr., Elkton, MD (US);
Krishna Raman, Wilmington, DE (US);
Vu Anh Dang, Bear, DE (US);
Lin-Chen Yu, Hockessin, DE (US);
Luigi Resconi, Ferrara, IT;
Tiziano Dall'Occo, Ferrara, IT;
Maurizio Galimberti, Milan, IT;
Assignee:
Montell Technology Company bv, Hoofddorp, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 3/100 ;
U.S. Cl.
CPC ...
B01J 3/100 ;
Abstract
A class of bridged or unbridged metallocene compounds is disclosed, wherein the cyclopentadienyl ligands have two or four adjacent substituents forming one or two alkylenic cycles of from 4 to 8 carbon atoms. These metallocenes are useful as catalyst components for the polymerization of olefins, particularly for the (co)polymerization of ethylene and for the polymerization of propylene.