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Title:
POLYESTER COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2020/213519
Kind Code:
A1
Abstract:
The present invention provides a polyester composition that exhibits a very good water absorption capacity at room temperature and is capable of conjugate spinning with polyethylene terephthalate resin or polyamide resin. A polyester composition according to the present invention is a polyester composition obtained by the polycondensation reaction of alkylene glycol with at least one of dicarboxylic acid and an ester-forming derivative of dicarboxylic acid. The polyester composition can be melt-formed in the range of 230°C to 300°C, and the volume of the composition increases by 50% to 3,000% when the composition is allowed to stand for 1 week at 50°C and is then immersed for 1 hour in ion-exchanged water at 30°C.

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Inventors:
WATARI IPPEI (JP)
TANAKA YOICHIRO (JP)
Application Number:
PCT/JP2020/016048
Publication Date:
October 22, 2020
Filing Date:
April 09, 2020
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08G63/672; C08G63/688; C08G63/83; C08G63/85
Domestic Patent References:
WO2017022569A12017-02-09
WO2020004350A12020-01-02
Foreign References:
JPS5998130A1984-06-06
JPS60163920A1985-08-26
JPH04283279A1992-10-08
JPH06184416A1994-07-05
JPH06263882A1994-09-20
JPH10158492A1998-06-16
JPH11302365A1999-11-02
JP2011213880A2011-10-27
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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