Title:
INTERMITTENTLY FIBER-SEPARATED CONTINUOUS CARBON FIBER BUNDLE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2023027359
Kind Code:
A
Abstract:
To provide a manufacturing method of a fiber-reinforced resin molding material which enables supply of a fiber-separated fiber bundle in a stable state up to a cutter while avoiding influence of meandering of a fiber bundle and skewing and meandering of a filament generated in the fiber bundle when manufacturing the fiber-reinforced resin molding material.SOLUTION: A continuous carbon fiber bundle is intermittently fiber-separated. The continuous carbon fiber bundle includes a fiber-separated portion of a length a and a fiber-unseparated portion of a length b, which are alternately arranged in a longitudinal direction, and satisfies a condition of formula (3): 0.9≤a/(a+b)<1.SELECTED DRAWING: Figure 1
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Inventors:
Samejima Sadao
Waterfowl Yukihiro
Yasu Watanabe
Koji Kanehagi
Waterfowl Yukihiro
Yasu Watanabe
Koji Kanehagi
Application Number:
JP2022205751A
Publication Date:
March 01, 2023
Filing Date:
December 22, 2022
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
D02G3/16; D02J1/18; D06H7/04
Attorney, Agent or Firm:
田▲崎▼ 聡
Tetsuya Kimizuka
Kazunori Onami
Tetsuya Kimizuka
Kazunori Onami