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. 13, 1998
Filed:
May. 19, 1995
Applicant:
Inventors:
Fausto Calderazzo, Ghezzano, IT;
Guido Pampaloni, Pontedera, IT;
Francesco Masi, S. Donato Mil.Se, IT;
Andrea Vallieri, Comacchio., IT;
Assignee:
Enichem S.p.A., Milan, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
502152 ; 502102 ; 502113 ; 502128 ; 502131 ; 502153 ; 502154 ; 502169 ;
Abstract
A catalyst for the (co)polymerization of ethylene is obtained by a process comprising the contact of the following components (A), (B), (C) and (D) in the respective molar ratios (1):(0.5-2):(0-25):(0-15): (A): a bivalent arene of titanium having the formula