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:
Dec. 23, 2025
Filed:
Jun. 15, 2022
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Kaori Imagawa, Kurashiki, JP;
Satoshi Koizumi, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 8/14 (2006.01); D01D 5/34 (2006.01); D01D 5/36 (2006.01); D01F 8/06 (2006.01);
U.S. Cl.
CPC ...
D01F 8/14 (2013.01); D01D 5/34 (2013.01); D01D 5/36 (2013.01); D01F 8/06 (2013.01);
Abstract
Provided is a sea-island composite fiber having excellent spinnability and thermoplastic deformability. The sea-island composite fiber comprises an island component and a sea component having a lower melting point than that of the island component, wherein the fiber has an aspect ratio of from 2.0 to 5.0 in a fiber cross section; and the sea component has a sea component thickness of from 0.2 to 2.0 μm, the sea component thickness being defined as a distance between an outer periphery of the fiber and an island component closest to the outer periphery on a minor axis of the fiber cross section.