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:
Oct. 20, 2026
Filed:
Dec. 10, 2021
Kuraray Co., Ltd., Kurashiki, JP;
Naoyuki Iwachido, Kurashiki, JP;
Ryokei Endo, Kurashiki, JP;
Yoshimi Nonaka, Kurashiki, JP;
Osamu Shimabukuro, Kurashiki, JP;
Kuraray Co., Ltd., Okayama, JP;
Abstract
A polyvinyl alcohol fiber that is excellent in water absorption properties, water solubility and mechanical strength; a fiber structure including the polyvinyl alcohol fiber; and a method for producing the polyvinyl alcohol fiber are provided. The polyvinyl alcohol fiber includes 1 mol % or more of at least one functional group selected from a sulfonic acid group, a sulfonate group, a maleic acid group, an itaconic acid group, an acrylic acid group, and a methacrylic acid group. The polyvinyl alcohol fiber has a degree of cross-linking of 0% and a tensile strength of 3 cN/dtex or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile