| 发明名称 |
Process for dry spinning spandex |
| 摘要 |
A process is provided for dry spinning a segmented polyurethaneurea at speeds as high as 900 meters/min. The process includes chain-extending an isocyanate-capped polyether glycol with a mixture of ethylenediamine and 1,2-diaminopropane, the 1,2-diaminopropane amounting to 8 to 17 mole % of the diamine mixture. The resultant spandex is particularly suited for use in women's hosiery.
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| 申请公布号 |
US5362432(A) |
申请公布日期 |
1994.11.08 |
| 申请号 |
US19930042342 |
申请日期 |
1993.04.02 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HOUSER, NATHAN E.;BAKKER, WILLEM;DREIBELBIS, RICHARD L. |
| 分类号 |
C08G65/32;C08G18/10;C08G18/48;C08G18/65;C08G18/66;C08G18/77;D01F6/70;(IPC1-7):D01D5/04;D01F6/78 |
主分类号 |
C08G65/32 |
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