Invention Grant
- Patent Title: Acrylic-fiber manufacturing method
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Application No.: US15600096Application Date: 2017-05-19
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Publication No.: US10676843B2Publication Date: 2020-06-09
- Inventor: Ryohei Noishiki , Masanobu Tamura
- Applicant: Kaneka Corporation
- Applicant Address: JP Osaka
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Osha Liang LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@37cc016d
- Main IPC: D01F6/02
- IPC: D01F6/02 ; D01D10/06 ; D01D5/06 ; D01F6/40 ; C08L27/06 ; C08L33/08 ; D01F6/10 ; D01F6/96 ; D06M13/244

Abstract:
A method for manufacturing an acrylic fiber uses a spinning solution in which an acrylic polymer is dissolved in an organic solvent, the method including reducing an amount of organic solvent by repeatedly spraying water onto coagulated filaments obtained by solidifying the spinning solution and pressing the coagulated filaments with nip rolls. The nip rolls may apply a nip pressure of 0.2 MPa or higher. Thus, a method for manufacturing an acrylic fiber with which an organic solvent in the acrylic fiber can be removed within a short period of time without using a water bath is provided.
Public/Granted literature
- US20170253998A1 ACRYLIC-FIBER MANUFACTURING METHOD Public/Granted day:2017-09-07
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