Title:
高活性オレフィン重合触媒の調製方法
Document Type and Number:
Japanese Patent JP6779202
Kind Code:
B2
Abstract:
The present invention relates to a method for preparing a high activity olefin polymerization catalyst, which is easy to be produced, reducing complicated steps, and can be produced at low temperature, wherein said method comprising the following steps: • (a) adding a magnesium halide into an alcohol solvent; • (b) precipitating the solution obtained from (a) in a solution of an organic solvent containing an organo compound of group III element; • (c) adding a titanium compound into the mixture obtained from (b) to obtain a catalyst; • (d) treating the catalyst obtained from (c) with an organoaluminium compound at a temperature ranging from 0 to 60° C. for 2 to 5 hours, wherein the mole ratio of aluminium to titanium (Al/Ti) for treatment is in a range of 1 to 30.
Inventors:
Summing Ply, Shsi Rawat
Kan Won, Thien Klu
Fetrac, Nade
Kan Won, Thien Klu
Fetrac, Nade
Application Number:
JP2017512040A
Publication Date:
November 04, 2020
Filing Date:
September 04, 2015
Export Citation:
Assignee:
PTC Global Chemical Public Company Limited
International Classes:
C08F4/658
Domestic Patent References:
| JP50095382A | ||||
| JP60088016A | ||||
| JP2006515646A | ||||
| JP60133011A | ||||
| JP7179515A | ||||
| JP7242706A |
Foreign References:
| US20040162401 |
Attorney, Agent or Firm:
Harakenzo world patent & trademark