发明名称 |
POLY(TRIMETHYLENE TEREPHTHALATE) YARN |
摘要 |
<p>Processes for making poly(trimethyelene terephthalate) yarn are provided. The process includes extruding a polyester polymer through a spinneret to form non-round filaments at a spinning speed less than 4500 mpm and a temperature between about 255° C. and about 275° C. The polyester polymer composition includes at least 85 mole percent poly(trimethylene terephthalate) wherein at least 85 mole percent of the repeating units consist of trimethylene units, and the polyester polymer has an intrinsic viscosity of at least 0.70 dl/g.</p> |
申请公布号 |
EP1183409(B1) |
申请公布日期 |
2005.11.16 |
申请号 |
EP20010916317 |
申请日期 |
2001.03.01 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HOWELL, JAMES, M.;LONDON, JOE, FORREST, JR. |
分类号 |
D01D5/253;D01F6/62;D03D15/00;(IPC1-7):D01F6/62 |
主分类号 |
D01D5/253 |
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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