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. 01, 2011
Filed:
Aug. 29, 2005
Munehito Funaya, Ichihara, JP;
Naritoshi Hirota, Takaishi, JP;
Mayumi Hiwara, Chiba, JP;
Yasushi Tohi, Ichihara, JP;
Koji Kawai, Ichihara, JP;
Ryoji Mori, Ichihara, JP;
Masahiko Okamoto, Chiba, JP;
Shigenobu Ikenaga, Ichihara, JP;
Hiromasa Marubayashi, Chigasaki, JP;
Munehito Funaya, Ichihara, JP;
Naritoshi Hirota, Takaishi, JP;
Mayumi Hiwara, Chiba, JP;
Yasushi Tohi, Ichihara, JP;
Koji Kawai, Ichihara, JP;
Ryoji Mori, Ichihara, JP;
Masahiko Okamoto, Chiba, JP;
Shigenobu Ikenaga, Ichihara, JP;
Hiromasa Marubayashi, Chigasaki, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
A high molecular weight propylene polymer exhibiting high stereoregularity (isotactic) and high position selectivity can be effectively produced by polymerizing at least one monomer selected from propylene, α-olefins and polyenes in the presence of a catalyst for olefin polymerization comprising: