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:
May. 22, 2007
Filed:
Apr. 03, 2003
Kazuhisa Matsunaga, Sodegaura, JP;
Masao Nagano, Sodegaura, JP;
Masaaki Ohgizawa, Sodegaura, JP;
Toshiyuki Tsutsui, Sodegaura, JP;
Kazuhisa Matsunaga, Sodegaura, JP;
Masao Nagano, Sodegaura, JP;
Masaaki Ohgizawa, Sodegaura, JP;
Toshiyuki Tsutsui, Sodegaura, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
Disclosed is a catalyst for olefin polymerization comprising [I] a solid titanium catalyst component [S] comprising titanium, magnesium, halogen and an electron donor (b), which is obtained by bringing a solid adduct consisting of a magnesium compound and an electron donor (a) into contact with an electron donor (b) and a liquid titanium compound by at least one method selected from (A) a method of contacting the materials in a suspended state in the coexistence of an inert hydrocarbon solvent and (B) a method of contacting the material plural times individed portions and [II] an organometallic compound catalyst component [M] containing a metal selected from the groups I to III in the periodic table.