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:
Jul. 06, 2021
Filed:
Jun. 22, 2016
Applicant:
Kuraray Co., Ltd., Kurashiki, JP;
Inventors:
Masami Kawakami, Kurashiki, JP;
Toshiaki Kobayashi, Kurashiki, JP;
Hiroyuki Kawai, Kurashiki, JP;
Shinichi Takemoto, Kurashiki, JP;
Tomohiro Hayakawa, Kurashiki, JP;
Assignee:
KURARAY CO., LTD., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 29/04 (2006.01); D01F 6/50 (2006.01); D01F 6/14 (2006.01); D01F 1/10 (2006.01); D01D 5/06 (2006.01); D01F 11/06 (2006.01); D02J 1/22 (2006.01);
U.S. Cl.
CPC ...
D01F 6/50 (2013.01); C08L 29/04 (2013.01); D01D 5/06 (2013.01); D01F 1/10 (2013.01); D01F 6/14 (2013.01); D01F 11/06 (2013.01); D02J 1/222 (2013.01); D02J 1/223 (2013.01); D02J 1/224 (2013.01); C08L 2203/12 (2013.01); D10B 2321/06 (2013.01); D10B 2331/06 (2013.01); D10B 2401/021 (2013.01);
Abstract
A polyvinyl alcohol fiber that can easily be fibrillated at a low manufacture cost is provided. The readily fibrillative polyvinyl alcohol fiber contains a polyalkylene oxide in addition to a polyvinyl alcohol. A mass ratio of the polyalkylene oxide ranges from 3 to 40% relative to the total mass of the polyvinyl alcohol and the polyalkylene oxide. A method for manufacturing the polyvinyl alcohol fiber is also provided.