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:
Sep. 24, 2002
Filed:
Jun. 08, 2000
Sakae Kamiyama, Chiba, JP;
Toshifumi Takemori, Ichihara, JP;
Minoru Iijima, Ichihara, JP;
Yukiko Hane, Ichihara, JP;
Shigeharu Yamamoto, Yotsukaido, JP;
Maruzen Petrochemical Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a solid catalyst (D) for olefin polymerization comprising a magnesium-containing solid component (A) carrying thereon an organoaluminum-oxy compound (B) and a metallocene compound (C), the magnesium-containing compound (A) being obtained by heat treating a magnesium compound represented by the general formula: MgX .nH O where X represents a halogen atom and n is an integer of 1 to 12, and to a method of producing an olefinic polymer using the catalyst. In the case where the above solid catalyst for olefin polymerization is used, catalyst activity, particularly activity per solid catalyst, is high. Therefore, a deashing treatment step such as catalyst removal can be omitted. Further, the olefinic polymer produced has a narrow molecular weight distribution, and in the case of a copolymer, its monomer composition is uniform.