Title:
ポリエステル重合触媒およびそれを用いるポリエステルの製造方法
Document Type and Number:
Japanese Patent JP5326741
Kind Code:
B2
Abstract:
Provided are a polymerization catalyst with which such a polyester that the generation of foreign materials caused by the catalyst or mold pollution at the time of molding are reduced and the thermal stability and the color tone of the polymer are superior remarkably in comparison to conventional products can be obtained, and a method for producing a polyester using the same. Provided are a polyester polymerization catalyst to be obtained by making a titanium compound and mannitol react together in a molar ratio of titanium atom to mannitol of from 1:1 to 1:3 and a method for producing a polyester using the catalyst.
Inventors:
Eri Hatano
Yoichiro Tanaka
Keisuke Honda
Yoichiro Tanaka
Keisuke Honda
Application Number:
JP2009082693A
Publication Date:
October 30, 2013
Filing Date:
March 30, 2009
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C08G63/82; C08G63/181; C08K5/053; C08L67/00; D01F6/62
Domestic Patent References:
| JP2001524536A | ||||
| JP2005220278A | ||||
| JP2001200045A |
Foreign References:
| WO2004111105A1 |