POLYURETHANE FOAM AND SHOE SOLE MEMBER

WIPO Patent Application WO/2021/193363

A1

The present invention provides: a polyurethane foam which has an adequately low hardness and excellent mechanical strength, while maintaining good rebound resilience; and a shoe sole member which is obtained using this polyurethane foam.　This polyurethane foam is configured from a polyurethane starting material that contains a polyol component, a polyisocyanate component, a foaming agent, a catalyst and a foam stabilizer, while being configured such that: the polyol component contains a polytetramethylene ether glycol that has a number average molecular weight of from 600 to 3,000; the proportion of the polytetramethylene ether glycol in the polyol component is 90% by mass or more; the polyisocyanate component contains (i) an isocyanate group-terminated prepolymer that has a number average molecular weight of from 500 to 2,000, an average number of functional groups of 2 and an isocyanate group content of from 3% by mass to 10% by mass and (ii) a modified MDI that has an isocyanate group content of from 25% by mass to 33% by mass; and the isocyanate group content in the polyisocyanate component is from 11% by mass to 27% by mass. A shoe sole member is configured using this polyurethane foam.

OHMURA KYOHEI (JP)
MORI HIROKI (JP)

PCT/JP2021/011138

September 30, 2021

March 18, 2021

Click for automatic bibliography generation  

ACHILLES CORP (JP)

C08G18/00; A43B13/04; C08G18/10; C08G18/48; C08G18/76; C08G101/00

WO2019172201A1

2019-09-12

JP2019189804A	2019-10-31
JP2018203921A	2018-12-27
JP2017105913A	2017-06-15
JP2017210628A	2017-11-30
JP2017132012A	2017-08-03

HOSOI, Isamu et al. (JP)

View/Download PDF      PDF Help

Previous Patent: IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Next Patent: DRIVER DEVICE FOR STEPPING MOTOR