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:
Feb. 21, 1995
Filed:
Mar. 24, 1994
Applicant:
Inventors:
Giuseppe Braca, Pisa, IT;
Anna M Raspolli Galletti, Titignano Navacchio, IT;
Stefano Pinori, Pontedera, IT;
Glauco Sbrana, Pisa, IT;
Assignee:
Enichem S.p.A., Milan, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526171 ; 526170 ; 526172 ; 526318 ; 5263184 ; 526352 ; 502155 ;
Abstract
A catalyst active in the preparation of ethylene homo and copolymers consists of a nickel complex bound to a polystyrene support and definable by the general formula (I): ##STR1## in which Ph, m and n have the meaning given in the description. The catalyst preparation and its use in ethylene polymerization and ethylene copolymerization with other unsaturated monomers are described.