Unlock instant, AI-driven research and patent intelligence for your innovation.

Injection molded sole

An injection molding, thermoplastic technology, applied in the direction of shoe soles, footwear, footwear, etc.

Inactive Publication Date: 2015-05-13
EI DU PONT DE NEMOURS & CO
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this blend still cannot solve the above problems

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Injection molded sole
  • Injection molded sole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0062] Material:

[0063] · AEM : by product name Ethylene / methyl acrylate copolymer rubber (containing 65% by weight methyl acrylate) available from DuPont;

[0064] · EVM : under the trade name LevaprenTM 700 Ethylene / vinyl acetate copolymer rubber (containing 70% by weight vinyl acetate) obtained from Lanxess AG, Germany;

[0065] · ECP-1 : by product name AC1330 is an ethylene / methyl acrylate copolymer (containing 30% by weight methyl acrylate) from DuPont;

[0066] · ECP-2 : by product name 40L-03 Ethylene / vinyl acetate (contains 40% by weight vinyl acetate) from DuPont;

[0067] · CLA : Dicumyl peroxide obtained from Shanghai Fangruida Chemical Co., Ltd., China;

[0068] · FA : Azodicarbonamide obtained from Hangzhou Haihong Fine Chemical Co., Ltd., China;

[0069] · TiO 2 : by product name Titanium dioxide from DuPont for R101;

[0070] · ZnO : zinc oxide obtained from Guangdong Guanghua Technology Co., Ltd., China;

[0071] · StZ : Zinc ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed herein is an injection molded shoe sole made of a foam composition, wherein the foam composition having: (a) about 20-93 wt% of at least one thermoplastic ethylene copolymer and (b) about 7-80 wt% of at least one ethylene / alkyl acrylate copolymer rubber, based on the combined weight of (a) and (b). The foam composition disclosed herein further has, relative to the combined weight of (a) and (b), (c) about 0.5-5 wt% of at least one cross-linking agent; and (d) about 0.5-5 wt% of at least one foaming agent.

Description

technical field [0001] The present disclosure relates to injection molded shoe soles with improved elasticity and reduced compression set. Background technique [0002] In the footwear industry, foams based on ethylene vinyl acetate (EVA) have been widely used as sole materials. However, when this EVA-based foam is used as a high-end casual shoe or running shoe, it is still necessary to further improve its elasticity and further reduce its compression set in order to provide high energy return and reduce fatigue. [0003] US Patent Publication 2005 / 0081980 discloses a foam cushion made of a blend of resin such as EVA and natural or synthetic rubber such as polyacrylate rubber, polybutadiene rubber, styrene butadiene rubber, and the like. However, this blend still cannot solve the above-mentioned problems. Contents of the invention [0004] The present disclosure relates to injection molded shoe soles with high elasticity and low compression set. The injection molded sho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L33/08C08L31/04C08K5/14C08J9/10C08J3/24A43B13/04
CPCB29D35/122A43B13/04C08J9/0061C08J2201/026C08J2323/04C08J2323/08C08J2333/04C08J2333/06C08J2333/08C08J2333/10C08J2333/12C08J2423/04C08J2423/08C08J2433/06C08J2433/08C08J2433/10C08J2433/12
Inventor 陈峰张大为王盛孟季茹王兴旺
Owner EI DU PONT DE NEMOURS & CO