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Sports shoe sole material

A technology for sole materials and sports shoes, applied in the field of sole materials for sports shoes, can solve the problems of non-wear resistance, poor thermal stability, low mechanical strength, etc. The effect of improving athletic performance

Inactive Publication Date: 2019-03-12
QIAODAN SPORTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, EVA (vinyl acetate copolymer) has low mechanical strength, poor thermal stability, and no wear resistance, which limits its further application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described below in combination with embodiments.

[0031] In the present embodiment, the composition of each material weight percentage of the sole of sports shoes is as follows:

[0032] Ethylene-vinyl acetate copolymer (VA content 26%) 45%;

[0033] Ethylene-vinyl acetate copolymer (40% VA content) 20%;

[0034] Ethylene-octene copolymer 15%;

[0035] EPDM 13.5%;

[0036] Transparent Zinc Oxide 1.5%;

[0037] Stearic acid 0.5%;

[0038] White foaming agent 4%;

[0039] Crosslinker 0.5%.

[0040] in:

[0041] 1. Ethylene-vinyl acetate copolymer is referred to as EVA. In this implementation case, the VA content of 26% is EVA7470 from Taiwan Formosa Plastics Co., Ltd., and the VA content of 40% is EVA 40W from Dow Corporation of the United States.

[0042] 2. Ethylene-octene copolymer is referred to as POE. In this implementation case, Exxon Mobil’s POE9061 is used.

[0043] 3. The EPDM rubber used in this implementation cas...

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PUM

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Abstract

The invention discloses a sports shoe sole material. The elasticity of a sports shoe sole prepared by virtue of the technical scheme of the invention is 71 percent, the heat shrinkage rate is 1.2 percent, the compression deformation rate is 30 percent, the hardness is 50 degrees, and the density is 0.18 g / cm3. The sports shoe sole material formula consists of the following components by weight percent: 40 to 50 percent of vinyl-vinyl acetate copolymer (the content of VA is 26 percent); 15 to 25 percent of vinyl-vinyl acetate copolymer (the content of VA is 40 percent), 20 to 30 percent of vinyl-octylene copolymer, 10 to 15 percent of EPDM, 1 to 1.5 percent of transparent zinc oxide, 0.4 to 0.6 percent of stearic acid, 3.5 to 4.5 percent of white foaming agent, and 0.4 to 0.6 percent of cross-linking agent.

Description

technical field [0001] The invention belongs to the field of sports shoe materials, in particular to a sports shoe sole material with high resilience performance. Background technique [0002] The energy return of running shoes is an important factor to measure its quality. The better the energy return, the less extra work the human body consumes when wearing the shoes, which also means that the more effort is saved when wearing the shoes. According to research by experts in the field of sports and shoemaking, there are two factors that affect the energy return of running shoes, one is the structural design of the sole, and the other is the rebound performance of the sole material itself. Due to the difference in formula ingredients or content, the rebound elasticity, compression deformation and thermal compression of the soles are quite different. In terms of sole materials, most of the shoemaking industry currently adopts EVA (vinyl acetate copolymer) foaming technology. ...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/16C08K3/22C08K5/09C08J9/04
CPCC08J9/0023C08J9/0066C08J9/04C08J2323/08C08J2423/08C08J2423/16
Inventor 阮果清樊鹏宇徐亮陶鹏举
Owner QIAODAN SPORTS CO LTD
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