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Title:
POLYESTER BLOCK COPOLYMER COMPOSITION FOR FLEXIBLE BOOTS
Document Type and Number:
WIPO Patent Application WO/2012/128161
Kind Code:
A1
Abstract:
The present invention can provide flexible boots using a polyester block copolymer composition that demonstrates good flexural fatigue resistance when used in a high temperature environment which could not be resolved by conventional methods, wherein the polyester block copolymer composition for flexible boots is a composition containing 0.05 to 1.0 mass parts of a polyfunctional epoxy compound per 100 mass parts of a polyester block copolymer having a polybutylene naphthalate component as a hard segment and a polyoxytetramethylene glycol component as a soft segment, and an accordion-shaped test piece formed using this composition has a flexural fatigue resistance of 4 million times or higher when tested using a DeMattia flexural fatigue tester.

Inventors:
KAWAMURA, Hitoshi (1-1 Katata 2-chome, Otsu-sh, Shiga 92, 〒5200292, JP)
河村 日紀 (〒92 滋賀県大津市堅田二丁目1番1号 東洋紡績株式会社内 Shiga, 〒5200292, JP)
Application Number:
JP2012/056622
Publication Date:
September 27, 2012
Filing Date:
March 15, 2012
Export Citation:
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Assignee:
TOYO BOSEKI KABUSHIKI KAISHA (2-8 Dojima Hama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目2番8号 Osaka, 〒5308230, JP)
KAWAMURA, Hitoshi (1-1 Katata 2-chome, Otsu-sh, Shiga 92, 〒5200292, JP)
International Classes:
C08L67/02; C08G63/672; C08L63/00; F16J3/04
Domestic Patent References:
WO2007111059A1
WO2007072642A1
WO2008093574A1
Foreign References:
JP2008309304A
JP2007191666A
JP2007191665A
JP2000159991A
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Claims: