Title:
ポリエステル製造用触媒及びそれを用いるポリエステル製造方法
Document Type and Number:
Japanese Patent JP3748819
Kind Code:
B2
Abstract:
A polyester having a good color tone, an excellent forming property and a high resistance to cohesion of foreign substance around a melt-spinning orifice when the polyester is melt-spun, is produced by polymerizing an aromatic difunctional carboxylic acid - alkyleneglycol ester and/or oligomer thereof in the presence of a catalyst including a reaction product of (A) a Ti compound component including a Ti compound (1) of formula (I) or a Ti compound (2) produced by reacting the Ti compound (1) with an aromatic difunctional carboxylic acid of the formula (III) or anhydride thereof, with (B) a P compound component selected from P compound (3) of the formula (III). ÄR<1> = C2-C10alkyl group; p = 1 - 3, n = 2 - 4, R<2> = substituted or unsubstituted C6-C20aryl or C1-C20 alkyl group, m = 1 or 2, q = 0 or 1, and m + q = 1 or 2Ü
More Like This:
Inventors:
Tomoyoshi Yamamoto
Application Number:
JP2001506713A
Publication Date:
February 22, 2006
Filing Date:
June 23, 2000
Export Citation:
Assignee:
TEIJIN FIBERS LIMITED
International Classes:
C08G63/85; C08G63/82; C08G63/87
Domestic Patent References:
| JP4189821A |
Foreign References:
| WO1999054039A1 | ||||
| US5453479 |
Attorney, Agent or Firm:
Takashi Ishida
Kazuyuki Nishidate
Jun Tsuruta
Masaya Nishiyama
Higuchi Souji
Kazuyuki Nishidate
Jun Tsuruta
Masaya Nishiyama
Higuchi Souji