| 发明名称 |
SOFT POLYURETHANE FOAM AND SHEET PAD |
| 摘要 |
The present invention provides a soft polyurethane foam that is obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a cross-linking agent, a foaming agent, and a catalyst in which: a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,000 and having three to four functional groups is contained; a molar ratio of ethylene oxide groups/propylene oxide groups in all the compound contained as the cross-linking agent is 100 or more; and diphenylmethane diisocyanate is contained in an isocyanate index of 70 or more. |
| 申请公布号 |
US2017121448(A1) |
申请公布日期 |
2017.05.04 |
| 申请号 |
US201515317054 |
申请日期 |
2015.06.12 |
| 申请人 |
BRIDGESTONE CORPORATION |
发明人 |
YOSHITOMI Kosuke;SHINOHARA Toshimitsu |
| 分类号 |
C08G18/48;C08G18/76;C08G18/32;A47C27/14 |
主分类号 |
C08G18/48 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A soft polyurethane foam that is obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a cross-linking agent, a foaming agent, and a catalyst in which:
a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,000 and having three to four functional groups is contained as the polyol; a molar ratio of ethylene oxide groups/propylene oxide groups in all the compound contained as the cross-linking agent is 100 or more; and diphenylmethane diisocyanate is contained in an isocyanate index of 70 or more as the polyisocyanate. |
| 地址 |
Tokyo JP |
