US 12,246,521 B2
Fiber-reinforced resin material, method for manufacturing same, and fiber-reinforced resin article
Tetsuya Yamamoto, Aichi-ken (JP); Kohei Kira, Ehime-ken (JP); Keisuke Kato, Aichi-ken (JP); and Masaaki Nomura, Aichi-ken (JP)
Assigned to TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-Ken (JP); and NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Aichi-Ken (JP)
Filed by TOYOTA BOSHOKU KABUSHIKI KAISHA, Aichi-ken (JP); and NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Aichi-ken (JP)
Filed on Jul. 18, 2022, as Appl. No. 17/813,239.
Claims priority of application No. 2021-127846 (JP), filed on Aug. 3, 2021.
Prior Publication US 2023/0044569 A1, Feb. 9, 2023
Int. Cl. B32B 27/12 (2006.01); B29C 70/00 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/022 (2019.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 37/06 (2006.01); B32B 37/10 (2006.01); B32B 37/18 (2006.01)
CPC B32B 27/12 (2013.01) [B29C 70/0035 (2021.05); B32B 5/02 (2013.01); B32B 5/26 (2013.01); B32B 7/022 (2019.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 37/06 (2013.01); B32B 37/10 (2013.01); B32B 37/185 (2013.01); B32B 2250/03 (2013.01); B32B 2250/20 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/106 (2013.01); B32B 2264/0264 (2013.01); B32B 2270/00 (2013.01); B32B 2305/18 (2013.01); B32B 2307/51 (2013.01); B32B 2307/54 (2013.01); B32B 2307/732 (2013.01); B32B 2309/02 (2013.01); B32B 2309/12 (2013.01); B32B 2313/04 (2013.01); B32B 2323/10 (2013.01); B32B 2377/00 (2013.01); B32B 2605/08 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A fiber-reinforced resin material, comprising:
a first fiber-reinforced resin layer;
a second fiber-reinforced resin layer having higher ductility and lower elasticity than those of the first fiber-reinforced resin layer; and
a third fiber-reinforced resin layer having higher ductility and lower elasticity than those of the second fiber-reinforced resin layer,
wherein the first fiber-reinforced resin layer, the second fiber-reinforced resin layer, and the third fiber-reinforced resin layer are laminated and integrated in this order,
the first fiber-reinforced resin layer comprises a first thermoplastic resin and continuous fibers,
the second fiber-reinforced resin layer comprises a second thermoplastic resin and continuous fibers,
the third fiber-reinforced resin layer comprises a third thermoplastic resin and continuous fibers,
the first thermoplastic resin, the second thermoplastic resin, and the third thermoplastic resin are three kinds of thermoplastic resins different from each other,
the first thermoplastic resin is a polyamide resin,
the second thermoplastic resin is a composite resin of a polyolefin resin and a polyamide resin,
the third thermoplastic resin is a composite resin of a polyolefin resin and a polyamide resin,
all of the continuous fibers have particles attached to surfaces thereof, and
the particles are made of a polyamide resin.