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:
Mar. 23, 1982
Filed:
Mar. 15, 1979
Chisso Corporation, Osaka, JP;
Abstract
A method for producing .alpha.-olefin polymers which enables to control molecular weight distribution in a narrower range, with a higher yield and a higher crystallinity of products, is proposed. A catalyst used in said method is also proposed. The solid component of said catalyst is obtained by reacting a trivalent metal halide with a hydroxide, an oxide, a carbonate of a divalent metal, a double compound containing any of these compounds or a hydrate of a compound containing a divalent metal to produce a solid product (I); reacting one or more electron donors and one or more electron acceptors separately or simultaneously each in from one step 10 steps but by using TiCl.sub.4 as an acceptor at least in one step, with said solid product (I) to obtain a solid product (II); and then combining an organoaluminum compound and an electron donor with said solid product (II).