| 发明名称 |
POLYURETHANE ELASTIC FIBER AND METHOD FOR PRODUCING SAME |
| 摘要 |
The present invention relates to polyurethane elastic fibers obtained by spinning a polyurethane resin. The polyurethane resin includes, as constituent units, a diol (a1) having a number average molecular weight of 500 to 10,000, an organic diisocyanate (b), and a chain extender (a2). The total concentration of urethane groups and urea groups in the polyurethane resin is 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin. Hard segment domains of the polyurethane resin have an average domain size of 20 to 30 nm as measured with an atomic force microscope. |
| 申请公布号 |
US2016265142(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201415029005 |
申请日期 |
2014.10.16 |
| 申请人 |
TORAY OPELONTEX CO., LTD. |
发明人 |
TANAKA Toshihiro;ITO Shingo;TAKAYAMA Hiroshi;KOIKE Yusuke;FUNAOKA Shinpei;HORI Kenzo |
| 分类号 |
D01F6/70;C08G18/48;C08G18/42;D04H1/56 |
主分类号 |
D01F6/70 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Polyurethane elastic fibers obtained by spinning a polyurethane resin, the polyurethane resin comprising, as constituent units:
a diol (a1) having a number average molecular weight of 500 to 10,000; an organic diisocyanate (b); and a chain extender (a2), the total concentration of urethane groups and urea groups in the polyurethane resin being 1.25 to 2.50 mmol/g based on the weight of the polyurethane resin, hard segment domains of the polyurethane resin having an average domain size of 20 to 30 nm as measured with an atomic force microscope. |
| 地址 |
Chuo-ku, Tokyo JP |
