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公开(公告)号：US10344403B2
公开(公告)日：2019-07-09
申请号：US14980547
申请日：2015-12-28
Applicant: Cytec Industries Inc.
Inventor： Thomas B Taylor
Abstract: Provided herewith is a process for improving tensile strength of precursor PAN fiber during the spinning stage in the manufacturing process. According to the process of the present invention, precursor fiber is made denser as it enters each wash bath. This progressive densification approach is useful for all PAN precursor bath draw/wash processes where a need for careful control of fiber network density and structure is required for improved carbon fiber properties.
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