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:
Nov. 30, 2010
Filed:
Mar. 15, 2006
Applicants:
Ilya Nifant'ev, Moscow, RU;
Pavel Ivchenko, Moscow, RU;
Yoshikuni Okumura, Kawasaki, JP;
Eleonora Ciaccia, Ferrara, IT;
Luigi Resconi, Ferrara, IT;
Inventors:
Ilya Nifant'ev, Moscow, RU;
Pavel Ivchenko, Moscow, RU;
Yoshikuni Okumura, Kawasaki, JP;
Eleonora Ciaccia, Ferrara, IT;
Luigi Resconi, Ferrara, IT;
Assignee:
Basell Poliolefine Italia s.r.l., Milan, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 4/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bridged metallocene compound of formula (I) wherein: M is an atom of a transition metal; X, is a hydrogen atom, a halogen atom, or a hydrocarbon-based group; R1 is a C1-C40 hydrocarbon radical; R2 and R3, form together a condensed 3-7 membered ring; R4 is a hydrogen atom or a C1-C40 hydrocarbon radical; W is an aromatic 5 or 6 membered ring.