Title:
MESH-LIKE FIBER-REINFORCED COMPOSITE MATERIAL, MESH-LIKE KNITTED STRUCTURE, MATERIAL FOR FORMING MESH-LIKE FIBER-REINFORCED COMPOSITE MATERIAL, AND MESH-LIKE FIBER-REINFORCED COMPOSITE MATERIAL SHAPED BODY
Document Type and Number:
WIPO Patent Application WO/2022/071455
Kind Code:
A1
Abstract:
Provided is a mesh-like fiber-reinforced composite material which is composed of a knitted base material that can withstand deep drawing during shaping, has superior stretchability and drape properties to those of the conventional materials, has excellent formability into a shape having a curved face and excellent air permeability, can be prevented from stuffiness, has a light weight and high strength, and has high stiffness and excellent impact resistance. Further provided are: a mesh-like knitted structure; a material for forming a mesh-like fiber-reinforced composite material; and a mesh-like fiber-reinforced composite material shaped body. The mesh-like fiber-reinforced composite material has a mesh-like knitted structure composed of the following three types of yarns: a plurality of rows of knitted structures (20) in each of which a chain stitch yarn (2) runs continuously in a loop-like shape in the lengthwise direction to form a knitted chain stich (2A); a plurality of rows of weft insert yarns (3) each of which is inserted while folding and shaking the lengthwise-direction knitted structures in at least three rows per course in the crosswise direction, and warp insert yarns (4) each of which is inserted in the direction of a plurality of rows produced by shaking the chain knitted yarn in one row per course in the opposite direction of the weft insert yarn. In the mesh-like fiber-reinforced composite material, only the knitted structures, the warp insert yarns and the weft insert yarns are impregnated with a resin and are cured. In the mesh-like fiber-reinforced composite material, each of the chain stitch yarns comprises (a) an organic fiber made from polyester, nylon, vinylon or the like, or (b) a high-strength fiber such as an aramid long fiber, a PBO long fiber, an ultra-high-molecular-weight polyethylene fiber and a high-strength polyarylate long fiber, or (c) an inorganic fiber such as a glass long fiber and a basalt fiber, and each of the warp and weft insert yarns comprises (a) an inorganic fiber such as a glass long fiber and a basalt fiber or (b) a high-strength fiber such as an aramid long fiber, a PBO long fiber, an ultra-high-molecular-weight polyethylene fiber and a high-strength polyarylate long fiber.
Inventors:
MURAKAMI SHINKICHI (JP)
KURATA ISAO (JP)
UNNO HIROTO (JP)
KITAMURA MASAYUKI (JP)
KURATA ISAO (JP)
UNNO HIROTO (JP)
KITAMURA MASAYUKI (JP)
Application Number:
PCT/JP2021/036025
Publication Date:
April 07, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
HOKURIKU FIBER GLASS COMPANY LTD (JP)
HOKURIKU FIBER GLASS COMPANY LTD (JP)
International Classes:
B29B15/12; B29B11/16; D04B21/00; D04B21/12
Domestic Patent References:
| WO2017212835A1 | 2017-12-14 |
Foreign References:
| US5265445A | 1993-11-30 | |||
| JP2011241505A | 2011-12-01 | |||
| JPH0662961U | 1994-09-06 | |||
| JP2016172942A | 2016-09-29 | |||
| JP6362454B2 | 2018-07-25 |
Attorney, Agent or Firm:
KURAHASHI Kentaro et al. (JP)
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