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:
Mar. 10, 2026
Filed:
Mar. 07, 2023
Kuraray Co., Ltd., Kurashiki, JP;
Satoshi Katsuya, Okayama, JP;
Haruna Mitsumori, Okayama, JP;
Ryokei Endo, Kurashiki, JP;
Shohei Tsunofuri, Kurashiki, JP;
Tsugumi Yoshida, Kurashiki, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
Provided is a space filling material having excellent strength in reinforcing a predetermined space to be filled with the space filling material and/or strength in fixing a material to be fixed therewith. The space filling material () includes reinforcing fibers and a thermoplastic resin, wherein the reinforcing fibers form a plurality of intersections at least a part of which are bonded with the thermoplastic resin, and among all of the reinforcing fibers, a proportion in volume of reinforcing fibers each having a bent ratio of 1.004 or higher is 20 vol % or more relative to a total volume of the reinforcing fibers, the bent ratio being defined as a ratio of fiber length/shortest distance between opposite ends of fiber. The space filling material () expands to fill a predetermined space () when the thermoplastic resin is softened by heating to release bending loads of the reinforcing fibers.