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Title:
CUSHIONING COMPOSITION FOR FOOTWEAR AND CUSHIONING MEMBER FOR FOOTWEAR
Document Type and Number:
WIPO Patent Application WO/2018/025332
Kind Code:
A1
Abstract:
Provided are: a cushioning composition for footwear which includes a lightweight styrene-based thermoplastic elastomer and forms cushioning members that not only have excellent adhesiveness (peel strength) but also have low hardness and excellent mechanical strength (in particular, tensile strength); and a cushioning member for footwear which is obtained from the cushioning composition. The cushioning composition for footwear comprises a styrene-based thermoplastic elastomer (A) and a softener (B), wherein the styrene-based thermoplastic elastomer (A) comprises: a block copolymer (a1) obtained by hydrogenating a block copolymer X-Y-X; and a modified styrene/ethylene/butylene/styrene block copolymer (a2). The block copolymer X-Y-X comprises: blocks X located at both terminals and each comprising a styrene polymer block; and an intermediate block Y comprising a styrene/butadiene copolymer block. The block copolymer (a2) is an amine-modified block copolymer or a maleic-anhydride-modified block copolymer. The block copolymers a1 and a2 have been blended so that a2/(a1+a2)=0.25-0.95 by weight. The styrene-based thermoplastic elastomer (A) and the softener (B) have been blended so that B/(A+B) = 0.5 to 0.7 by weight.

Inventors:
SATO, Shigenori (18-10 Takanawa 2-chome,Minato-k, Tokyo 74, 〒1080074, JP)
SHIRATORI, Yuichi (18-10 Takanawa 2-chome,Minato-k, Tokyo 74, 〒1080074, JP)
Application Number:
JP2016/072676
Publication Date:
February 08, 2018
Filing Date:
August 02, 2016
Export Citation:
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Assignee:
TAICA CORPORATION (18-10, Takanawa 2-chome Minato-k, Tokyo 74, 〒1080074, JP)
International Classes:
C08L53/02; A43B13/04; C08K5/01; C08K7/22; C08L53/00
Attorney, Agent or Firm:
YOSHIDA, Yoshiharu (Kyodo News Building 9F, 2-5 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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