Title:
強化繊維テープ材料およびその製造方法、強化繊維テープ材料を用いた強化繊維積層体および繊維強化樹脂成形体
Document Type and Number:
Japanese Patent JP7344472
Kind Code:
B2
Abstract:
The present invention concerns a reinforcing fiber tape material having a strand aggregate provided with one or a plurality of reinforcing fiber strands, used for resin injection molding, characterized in that the tape material is formed by being restrained and integrated with reinforcing fibers forming the reinforcing fiber strand or/and the plurality of reinforcing fiber strands with each other by a first or fourth resin material arranged on at least one of surfaces of the strand aggregate and a second or third resin material arranged on one of the surfaces which is different in softening point from the first or fourth resin material, and the first or fourth resin material and the second or third resin material have matrix resin permeability,wherein a heat-meltable fourth resin material having a softening point of 40°C or higher and 200°C or lower is provided at a state of being solidified after being softened on both surfaces of the strand aggregate composed of reinforcing fiber strands each in which reinforcing fibers are aligned in parallel in one direction, and a third resin material having a softening point higher than that of the fourth resin material is adhered to one surface of the strand aggregate composed of the reinforcing fiber strands via the fourth resin material,especially wherein the softening point M3 [°C] of the third resin material and the softening point M4 [°C] of the fourth resin material satisfy the following equation: M3>M4+10°C.
Inventors:
Mamoru Kanda
Masayuki Sato
Masayuki Sato
Application Number:
JP2020536479A
Publication Date:
September 14, 2023
Filing Date:
July 29, 2019
Export Citation:
Assignee:
Toray Industries, Inc.
International Classes:
B29C70/16; B29B11/16; B29C70/50; B32B5/26; B32B27/12
Domestic Patent References:
| JP2014189013A | ||||
| JP2013531707A | ||||
| JP2017521291A |
Foreign References:
| WO2010087811A1 |
Attorney, Agent or Firm:
Toshimitsu Ban
Koichi Hosoda
Koichi Hosoda