Title:
CATALYST FOR OLEFIN POLYMERIZATION AND POLYMERIZATION OF OLEFIN
Document Type and Number:
Japanese Patent JP3387946
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject catalyst consisting of a specific transition metal compound, an organoaluminum compound and a contact product of a Mg compound and an electron donative substance, excellent in both of olefin polymerization activityt and economical efficiency and capable of producting an olefin polymer in high yield.
CONSTITUTION: The objective catalyst consists of (A) a transition metal compound of the group IVB of the periodic table including a ligand having cyclopentadienyl skeleton [preferably bis(methylcyclopentadienyl)zirconium dichloride, etc.], (B) an organoaluminum compound (preferably ≥4C trialkylaluminum, etc.) and (C) a contact product of a Mg compound and an electron donative substance (preferably magnesium chloride.2-ethylhexyl alcohol complex, etc.). Furthermore, the catalyst is preferably prepared by a method comprising bringing the component A into contact with the component B and then bringing the product into contact with the component C or bringing the component B into contact with C and then bringing the product into contact with the component A. The contact temperature is preferably 10-150°C and the contact time is preferably 1sec to 1hr.
Inventors:
Takashi Tashiro
Taka Ueda
Taka Ueda
Application Number:
JP32451092A
Publication Date:
March 17, 2003
Filing Date:
December 03, 1992
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F4/642; C08F4/60; C08F4/646; C08F4/659; C08F4/6592; C08F10/00; (IPC1-7): C08F4/646; C08F10/00
Domestic Patent References:
| JP63168408A | ||||
| JP646003A |
Other References:
【文献】欧州特許出願公開416928(EP,A2)
Attorney, Agent or Firm:
Shunichiro Suzuki