Invention Grant
US5296286A Process for preparing subdenier fibers, pulp-like short fibers, fibrids,
rovings and mats from isotropic polymer solutions
失效
从各向同性聚合物溶液制备亚分子纤维，纸浆状短纤维，纤条体，粗纱和垫的方法
- Patent Title: Process for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutions
- Patent Title (中): 从各向同性聚合物溶液制备亚分子纤维，纸浆状短纤维，纤条体，粗纱和垫的方法
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Application No.: US961704Application Date: 1993-01-11
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Publication No.: US5296286APublication Date: 1994-03-22
- Inventor: Steven R. Allen , David M. Gale , Aziz A. Mian , Sam L. Samuels , Hsiang Shih
- Applicant: Steven R. Allen , David M. Gale , Aziz A. Mian , Sam L. Samuels , Hsiang Shih
- Applicant Address: DE Wilmington
- Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee: E. I. Du Pont de Nemours and Company
- Current Assignee Address: DE Wilmington
- Main IPC: D01D5/11
- IPC: D01D5/11 ; D01F2/28 ; D01F6/18 ; D01F6/60 ; D04H1/56 ; D04H13/00 ; D21H13/26 ; D03D3/00
Abstract:
A process for preparing subdenier fibers and structures thereof from isotropic polymer solutions is disclosed. The process comprises extruding a stream of the polymer solution into a chamber, introducing a pressurized gas into the chamber, directing the gas in the flow direction of and in surrounding contact with the stream within the chamber, passing both the gas and the stream into a zone of lower pressure at a velocity sufficient to attenuate the stream and fragment it into fibers, and contacting the fragmented stream in the zone with a coagulating fluid.
Public/Granted literature
- US5996025A Network transparent access framework for multimedia serving Public/Granted day:1999-11-30
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