CATALYTIC COMPONENT FOR OLEFIN POLYMERIZATION AND CATALYST THEREFROM

Japanese Patent JP3904117

B2

PROBLEM TO BE SOLVED: To obtain a catalyst having high activity and stereospecificity in olefin polymerization without the need of any external electron donar, comprising an active magnesium halide, a titanium compound borne thereon and having a Ti-halogen bond and a cyclopolyene-based diether.
SOLUTION: This catalyst comprises (A) an active-type magnesium halide and (B) a titanium compound borne thereon and having a Ti-halogen bond and (C) a cyclopolyene-based 1,3-diether of the formula [A, B, C and D are each C, N, O, S, etc.; (v), (x) and (y) are each 0 or 1; (u) and (z) are each 0-2; with proviso that A, B and C are each carbon atom, and (v), (x) and (y) are 1 when (u)=0]. The carbon atom at the site of 2 in the 1,3-diether belongs to a cyclic or polycyclic structure having 5-7 carbons, or (5-n) or (6-n') carbons plus hetero atoms selected from a group of (n) nitrogens and (n') (N, O, S and/or Si) (where (n) is 1 or 2 and (n') is 1, 2 or 3), containing 2 or 3 unsaturated bonds and being substituted with an alkyl, an aryl group, etc.

Jean Clown, Molini
Enrico, Albizazzi
Julio, Barbontin
Giovanni, Baruzzi
Antonio, Christophori

JP3409196A

April 11, 2007

February 21, 1996

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Basel North America, Inc.

C08F4/654; C08F4/60; C08F4/649; C08F4/651; C08F10/00; C08F10/06; C08F210/18; (IPC1-7): C08F4/654; C08F10/00

JP8333413A
JP9020804A
JP3000706A

Kazuo Shamoto
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takako Koiso
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Masaharu Takamura

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