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. 15, 2011
Filed:
Jan. 19, 2006
Kazuhisa Matsunaga, Otake, JP;
Hisao Hashida, Iwakuni, JP;
Toshiyuki Tsutsui, Otake, JP;
Kunio Yamamoto, Kuga-gun, JP;
Atsushi Shibahara, Chiba, JP;
Tetsunori Shinozaki, Otake, JP;
Kazuhisa Matsunaga, Otake, JP;
Hisao Hashida, Iwakuni, JP;
Toshiyuki Tsutsui, Otake, JP;
Kunio Yamamoto, Kuga-gun, JP;
Atsushi Shibahara, Chiba, JP;
Tetsunori Shinozaki, Otake, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
The process for producing an olefin polymer according to the present invention is characterized in that it comprises polymerizing an olefin having 3 or more carbon atoms in the presence of a catalyst for olefin polymerization containing a solid titanium catalyst component (I) which contains titanium, magnesium, halogen, and a cyclic ester compound (a) specified by the following formula (1): According to this process, an olefin polymer having a broad molecular weight distribution can be prepared.