Title:
THERMOPLASTIC POLYESTER ELASTOMER RESIN COMPOSITION FOR RESIN BELT MATERIALS, AND MOLDED RESIN BELT
Document Type and Number:
WIPO Patent Application WO/2019/188285
Kind Code:
A1
Abstract:
According to the present invention, a polyester elastomer resin composition for resin belt materials, which has high resin strength, excellent flex fatigue resistance and excellent moldability is achieved. The present invention is a thermoplastic polyester elastomer resin composition for resin belt materials, which is characterized by containing 80-92.99% by weight of a thermoplastic polyester elastomer (A), 7-19.99% by weight of glass fibers (B) and 0.01-5.0% by weight of a crystal nucleator (C), and which is also characterized in that: the thermoplastic polyester elastomer (A) is a polyester block copolymer which contains 40-70% by weight of a high melting point crystalline polymer segment (a1) that is composed of a crystalline aromatic polyester unit and 30-60% by weight of a low melting point polymer segment (a2) that is composed of an aliphatic polyether unit; and the melt flow rate as determined in accordance with ASTM D1238 at 230°C under a load of 2,160 g is 1.0 g/10 min or more but less than 10.0 g/10 min.
Inventors:
NAKAO YUICHI (JP)
UEMURA YUJI (JP)
UEMURA YUJI (JP)
Application Number:
PCT/JP2019/010258
Publication Date:
October 03, 2019
Filing Date:
March 13, 2019
Export Citation:
Assignee:
DU PONT TORAY CO LTD (JP)
International Classes:
C08L67/02; C08G63/66; C08K7/14; F16G1/16
Foreign References:
| JP2017172794A | 2017-09-28 | |||
| JP2011006519A | 2011-01-13 |
Attorney, Agent or Firm:
ICHIJO, Chikara (JP)
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