The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2020
Filed:
May. 19, 2017
Applicant:
Kaneka Corporation, Osaka, JP;
Inventors:
Ryohei Noishiki, Hyogo, JP;
Masanobu Tamura, Hyogo, JP;
Assignee:
KANEKA CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F 6/02 (2006.01); D01D 10/06 (2006.01); D01D 5/06 (2006.01); D01F 6/40 (2006.01); C08L 27/06 (2006.01); C08L 33/08 (2006.01); D01F 6/10 (2006.01); D01F 6/96 (2006.01); D06M 13/244 (2006.01);
U.S. Cl.
CPC ...
D01F 6/02 (2013.01); C08L 27/06 (2013.01); C08L 33/08 (2013.01); D01D 5/06 (2013.01); D01D 10/06 (2013.01); D01F 6/10 (2013.01); D01F 6/40 (2013.01); D01F 6/96 (2013.01); D06M 13/244 (2013.01);
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.