发明授权
- 专利标题： Process of making fine polyester hollow filaments
- 专利标题（中）： 制造精细聚酯中空丝的工艺
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申请号： US214717申请日： 1994-03-16
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公开(公告)号： US5487859A公开(公告)日： 1996-01-30
- 发明人: Arun P. Aneja , David G. Bennie , Robert J. Collins , Hans Rudolf E. Frankfort , Stephen B. Johnson , Benjamin H. Knox , Elmer E. Most, Jr.
- 申请人： Arun P. Aneja , David G. Bennie , Robert J. Collins , Hans Rudolf E. Frankfort , Stephen B. Johnson , Benjamin H. Knox , Elmer E. Most, Jr.
- 申请人地址： DE Wilmington
- 专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人地址： DE Wilmington
- 主分类号： D01D5/08
- IPC分类号： D01D5/08 ; D01D5/22 ; D01D5/24 ; D01D10/02 ; D01F6/62 ; D01F8/12 ; D01F8/14 ; D02G1/18 ; D02G3/02 ; D02J1/22 ; D01D5/253 ; D02J1/08
摘要：
A post-coalescence melt-spinning process for preparing fine undrawn hollow polyester filaments having excellent mechanical quality and uniformity at high speeds (2-5 km/min) involving selection of polymer viscosity and spinning conditions, whereby the void content of the resulting new undrawn filaments is essentially maintained or increased on cold-drawing or hot-drawing with or without post heat treatment, and the new fine hollow polyester filaments obtained thereby.
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