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. 26, 2013
Filed:
May. 05, 2011
Kazuhisa Matsunaga, Otake, JP;
Hideki Yamamoto, Ichihara, JP;
Kunio Yamamoto, Yamaguchi, JP;
Tetsunori Shinozaki, Ichihara, JP;
Kiyoshi Takahashi, Otake, JP;
Kazuhisa Matsunaga, Otake, JP;
Hideki Yamamoto, Ichihara, JP;
Kunio Yamamoto, Yamaguchi, JP;
Tetsunori Shinozaki, Ichihara, JP;
Kiyoshi Takahashi, Otake, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
Provided are a solid titanium catalyst component for ethylene polymerization which can polymerize ethylene at a high activity and which can provide an ethylene polymer having an excellent particle property, an ethylene polymerization catalyst and an ethylene polymerization method in which the catalyst is used. The solid titanium catalyst component (I) for ethylene polymerization according to the present invention is obtained by bringing a liquid magnesium compound (A) including a magnesium compound, an electron donor (a) having 1 to 5 carbon atoms and an electron donor (b) having 6 to 30 carbon atoms into contact with a liquid titanium compound (C) under the presence of an electron donor (B) and includes titanium, magnesium and a halogen. The ethylene polymerization catalyst of the present invention includes the component (I) and an organic metal compound catalyst component (II). Further, the ethylene polymerization method of the present invention is a method for polymerizing ethylene under the presence of the catalyst.