Fiber opening agent

The use of spider silk fibroin as a fiber-opening agent in fiber-reinforced composites addresses inefficiencies in existing methods, enhancing mechanical properties by promoting fiber bundle opening and reducing resin pooling.

JP7804285B2Active Publication Date: 2026-01-22UCHIHAMA KASEI +2
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
JP2022536341
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-07-15
Filing Date
2021-07-12
Publication Date
2026-01-22
Estimated Expiration
2041-07-12

Smart Images

  • Figure 0007804285000007
    Figure 0007804285000007
  • Figure 0007804285000008
    Figure 0007804285000008
  • Figure 0007804285000009
    Figure 0007804285000009
Patent Text Reader

Abstract

The purpose of the present invention is to provide a fiber opening agent to be blended, together with fiber bundles of a reinforcing fiber and a matrix resin, into a fiber-reinforced composite material, said fiber opening agent being capable of promoting opening of the fiber bundles of the reinforcing fiber in a composing process. The fiber opening agent according to the present invention, which is to be blended into a fiber-reinforced composite material, said fiber-reinforced composite material containing fiber bundles consisting of a plurality of reinforcing fiber yarns bundled together and a matrix resin, to promote opening of the fiber bundles. This fiber opening agent contains a structural protein.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Fiber-reinforced resin material molded body, method for producing fiber-reinforced resin material molded body and method for producing fiber-reinforced resin material

    JP2018080347A

  • Fiber reinforced composite material and manufacturing method therefor

    JP2019044117A

  • Fiber-reinforced resin material and laminate

    WO2018116979A1

  • Fiber-reinforced composite material, additive for fiber-reinforced composite material, and method for producing fiber-reinforced composite material

    WO2019066028A1

  • Injection molded body, composition for injection molding, and method for producing injection molded body

    WO2020067518A1