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:
Jan. 31, 1995
Filed:
Oct. 14, 1993
Takashi Fujita, Yokkaichi, JP;
Mitsubishi Petrochemical Company Limited, Tokyo, JP;
Abstract
Ziegler polymerization of C.sub.3 or higher .alpha.-olefins is disclosed which is characterized by a solid catalyst component and an organoaluminum component used in the Ziegler catalyst, and also by the temperature used which is 150.degree. to 300.degree. C. The solid catalyst component, Component (A), comprises Sub-component (i) which is a solid catalyst component for Ziegler catalysts comprising Ti, Mg and a halogen; Sub-component (ii) which is a silicon compound represented by a formula: R.sup.1.sub.m X.sub.n Si(OR.sup.2).sub.4-n-m wherein R.sup.1 indicates a hydrocarbyl group, R.sup.2 which may be the same as or different from R.sup.1 indicates a hydrocarbyl group, X is a halogen atom, and m and n are each a number satisfying equations 0.ltoreq.m.ltoreq.3, 0.ltoreq.n.ltoreq.3 and 0.ltoreq.m+n.ltoreq.3; and Sub-component (iii) which is an organometal compound of a metal of Groups I to IV of the Periodic Table. The organoaluminum component (B) is an organoaluminum compound represented by a formula