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:
Jul. 10, 2007
Filed:
Oct. 30, 2003
Yasushi Tohi, Sodegaura, JP;
Naomi Urakawa, Sodegaura, JP;
Koji Endo, Sodegaura, JP;
Koji Kawai, Sodegaura, JP;
Chiemi Okawa, Legal Representative, Otake, JP;
Toshiyuki Tsutsui, Yamaguchi, JP;
Yasushi Tohi, Sodegaura, JP;
Naomi Urakawa, Sodegaura, JP;
Koji Endo, Sodegaura, JP;
Koji Kawai, Sodegaura, JP;
Chiemi Okawa, legal representative, Otake, JP;
Toshiyuki Tsutsui, Yamaguchi, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
The present invention provides a process for preparing a low molecular weight olefin (co)polymer having a narrow molecular weight distribution with high productivity, by polymerizing or copolymerizing an olefin in the presence of an olefin polymerization catalyst comprising (A) a specific Group 4 transition metal compound, and (B) at least one compound selected from the group consisting of (B-1) an organometallic compound, (B-2) an organoaluminum compound, (B-3) an organoaluminum oxy-compound, and (B-4) a compound which reacts with the Group 4 transition metal compound (A) to form an ion pair; and compounds useful in that process.