发明名称 |
HIGH PRODUCTIVITY SPANDEX FIBER PROCESS AND PRODUCT |
摘要 |
<p>Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4,4'-MDI and 2,4'-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content.</p> |
申请公布号 |
EP1622958(B1) |
申请公布日期 |
2010.11.03 |
申请号 |
EP20040718099 |
申请日期 |
2004.03.05 |
申请人 |
INVISTA TECHNOLOGIES S.A.R.L. |
发明人 |
SELLING, GORDON, W.;HOUSER, NATHAN, E. |
分类号 |
C08G18/10;C08G18/48;C08G18/76;D01F6/70 |
主分类号 |
C08G18/10 |
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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