Title:
CARBON FIBER TAPE MATERIAL, AND REINFORCED FIBER LAMINATE AND MOLDED ARTICLE USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/095623
Kind Code:
A1
Abstract:
In order to achieve a carbon fiber tape material that has favorable mold conformability and favorable matrix resin impregnability, that improves productivity when producing a reinforced fiber laminate via a fiber placement method, and that, upon being impregnated in resin and molded, is capable of providing a molded article having high mechanical strength, the present invention provides a carbon fiber tape material wherein a carbon fiber group, in which a plurality of carbon fiber bundles are aligned parallel to the fiber orientation direction, is integrated with a fabric, characterized in that the carbon fiber tape material satisfies the following (a) to (c): (a) the fabric is formed from one or more types of thermoplastic resin; (b) the carbon fiber tape material, excluding the fabric, has a mass per unit area of between 120 g/m2 and 400 g/m2; and (c) in at least one direction of the fabric, the fabric elongation percentage Ep(%) when a 80mN/50mm load is applied to the fabric is 5-100%. Ep=[(L1-L0)/L0]×100. Ep: Fabric elongation percentage (%). L0: Original fabric length (mm) between marks. L1: Fabric length (mm) when load has been applied.
Inventors:
SATO MASAYUKI (JP)
Application Number:
PCT/JP2020/041312
Publication Date:
May 20, 2021
Filing Date:
November 05, 2020
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B29B11/16; B29C43/12; B29C70/16; B29C70/44; B32B5/26; B32B5/28; D06M17/00; B29K105/08; B29K105/10
Domestic Patent References:
| WO2018052080A1 | 2018-03-22 | |||
| WO2012011437A1 | 2012-01-26 |
Foreign References:
| JP2018501121A | 2018-01-18 | |||
| JP2015502271A | 2015-01-22 | |||
| JPH07149927A | 1995-06-13 | |||
| JP2015017343A | 2015-01-29 | |||
| JP2010155460A | 2010-07-15 | |||
| JP2012510385A | 2012-05-10 | |||
| JP2017521291A | 2017-08-03 | |||
| JP2015116806A | 2015-06-25 |
Other References:
See also references of EP 4059685A4
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