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:
Jun. 28, 1983
Filed:
Jul. 23, 1981
Montedison S.p.A., Milan, IT;
Abstract
There are disclosed components of catalysts for polymerizing ethylene and mixtures of ethylene with alpha-olefins comprising the reaction product of (A) a magnesium compound, such as Mg-chloride, Mg-alcoholate or a Grignard compound, with (B) a titanium, vanadium or zirconium compound having at least two metal-oxygen bonds, such as a tetra-alcoholate, and with (C) a halogenated compound of metals of B, such as Ti tetrachloride. According to an aspect of the invention, the reaction product (A)+(B), before being reacted with (C), is treated with a silicum compound having a halogenating and/or reducing action. The catalysts according to the invention are suitable for obtaining ethylene polymers having a broad distribution of molecular weights.