发明名称 |
Melt processable, bleach resistant, durable fibers having high elastic recovery and low stress relaxation from polyurethane elastomers |
摘要 |
The present invention provides melt processable, bleach resistant durable fibers having an elastic recovery above 50% after extension to 160% elongation and a stress relaxation below 50% after extension to 150% for 30 minuets which are formed from a soft polyurethane elastomer. This elastomer is comprised of (a) from 75 to 90% weight of a polydiene diol having up to about two terminal hydroxyl groups per molecule and a number average molecular weight between 500 and 20,000, (b) from 9 to 25% weight of a diisocyanate, and (c) from 0.8% to 5% weight of a chain extender which is a low molecular weight aliphatic diol, or a mixture of the low molecular weight aliphatic diol and from 0.1 to 4.0 mol % of a diamine wherein the hard segment content of the polyurethane elastomer is from about 10 to about 30% weight. The present invention further provides a polyurethane elastomer.
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申请公布号 |
US2003162910(A1) |
申请公布日期 |
2003.08.28 |
申请号 |
US20030347910 |
申请日期 |
2003.01.21 |
申请人 |
DJIAUW LIE KHONG;MASSE MICHAEL A. |
发明人 |
DJIAUW LIE KHONG;MASSE MICHAEL A. |
分类号 |
C08G18/65;D01F6/70;(IPC1-7):C08F283/04 |
主分类号 |
C08G18/65 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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