Title:
SOLID CATALYST COMPONENT AND CATALYST FOR POLYMERIZING OLEFINS
Document Type and Number:
Japanese Patent JP3654311
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a solid catalyst component for polymerizing olefins capable of providing polypropylene, etc., having stereoregularity and crystallinity in a high yield by combining specific solid components, etc.
SOLUTION: This solid catalyst component is obtained by combining (A) one or more of solid components prepared by using (i) one or more dialkoxymagnesiums of formula I (R1 is a 1-4C alkyl or an aryl), (ii) one or more of titanium compounds of formula II [R2 is a 1-4C alkyl; X is a halogen, (m) is 0-3] and (iii) one or more of aromatic dicarboxylic acid diesters with (B) one or more of solid components prepared by using the components (i) to (iii), (iv) one or more of polysiloxanes and (v) one or more selected from the group of aluminum compounds of formula III or IV [R3 is a 1-4C alkyl; X is a halogen; (n) is 0-3; R4 is a 1-4C alkyl; Y is H or a halogen; (p) is 0-3]. Furthermore, the weight ratio of the components (A) to (B) is preferably (1/99) to (99/1).
Inventors:
Takuo Kataoka
Umebayashi Hidetoshi
Kenji Goto
Umebayashi Hidetoshi
Kenji Goto
Application Number:
JP23469595A
Publication Date:
June 02, 2005
Filing Date:
August 21, 1995
Export Citation:
Assignee:
Toho Titanium Co., Ltd.
International Classes:
C08F4/658; C08F4/60; C08F10/00; (IPC1-7): C08F4/658; C08F10/00
Domestic Patent References:
| JP5378287A | ||||
| JP62508A | ||||
| JP62146904A | ||||
| JP63182306A | ||||
| JP641707A | ||||
| JP3157409A | ||||
| JP867711A |
Attorney, Agent or Firm:
Kenji Akatsuka
Yasuo Fukuda
Yasuo Fukuda
Previous Patent: AIR CONDITIONER FOR VEHICLE
Next Patent: ASSEMBLING METHOD FOR BRUSH OF ELECTRIC ROTATING MACHINE AND BRUSH SUPPORT
Next Patent: ASSEMBLING METHOD FOR BRUSH OF ELECTRIC ROTATING MACHINE AND BRUSH SUPPORT