PREPREG, LAMINATE, AND MOLDED ARTICLE

WIPO Patent Application WO/2020/235487

A1

The purpose of the present invention is to provide: a prepreg which has excellent tensile shear binding strength, fatigue binding strength, and interlayer fracture toughness value, which can be firmly integrated with other structural members when being melted and adhered thereto, and which is for manufacturing a laminate that is suitable as a structural material; and said laminate. This prepreg contains [A] reinforced fibers, [B] a thermosetting resin, and [C] a thermoplastic resin as components, and is characterized in that, [C] is present in the surface of the prepreg, [C] is a crystalline thermoplastic resin having a glass transition temperature not less than 100°C or an amorphous thermoplastic resin having a glass transition temperature not less than 180°C, and [A] the reinforced fibers included in both a resin region containing [B] and a resin region containing [C] are present across the boundary surface between the two resin regions.

MISUMI JUN (JP)
HONMA MASATO (JP)
SHINOHARA KYOKO (JP)

PCT/JP2020/019469

November 26, 2020

May 15, 2020

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TORAY INDUSTRIES (JP)

B29B11/16; B29C70/20; B29C70/30; B29C70/68; B32B5/28; C08J5/04; C08J5/24; B29K105/10; B29L9/00

WO2005082982A1

2005-09-09

JP2006049878A	2006-02-16
JP2007092072A	2007-04-12
JP2018161801A	2018-10-18
JPH10138354A	1998-05-26
JP3906319B2	2007-04-18
JPH08259713A	1996-10-08

JAPAN SOCIETY OF PLASTIC PROCESSING (ED.): "Plastic molding processing data book; 2nd ed.", 28 January 2002, NIHON KOGYO SHIMBUN, JP, ISBN: 4-526-04870-4, article "General Properties of Thermoplastics", pages: 2 - 3, XP009531537
See also references of EP 3974140A4

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