US 12,233,623 B2
Metal-fiber reinforced resin material composite body and method for producing metal-fiber reinforced resin material composite body
Masaharu Ibaragi, Tokyo (JP); Noriyuki Negi, Tokyo (JP); Masafumi Usui, Tokyo (JP); and Masako Nakai, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Appl. No. 16/976,696
Filed by NIPPON STEEL CORPORATION, Tokyo (JP)
PCT Filed Feb. 27, 2019, PCT No. PCT/JP2019/007670
§ 371(c)(1), (2) Date Aug. 28, 2020,
PCT Pub. No. WO2019/168064, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. 2018-034731 (JP), filed on Feb. 28, 2018.
Prior Publication US 2020/0406585 A1, Dec. 31, 2020
Int. Cl. B32B 15/08 (2006.01); B32B 7/022 (2019.01); B32B 7/12 (2006.01); B32B 15/14 (2006.01); C08L 71/10 (2006.01)
CPC B32B 15/14 (2013.01) [B32B 7/022 (2019.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); C08L 71/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A metal-fiber reinforced resin material composite body comprising
a metal member, a fiber-reinforced resin material laminated on at least one surface of the metal member to form a composite with the metal member, and
an adhesive resin layer interposed between the metal member and the fiber-reinforced resin material,
wherein the fiber-reinforced resin material comprises a matrix resin containing 50 parts by mass or more of a phenoxy resin with respect to 100 parts by mass of a resin component, and a reinforcing fiber material contained in the matrix resin,
wherein a concentration of the phenoxy resin in a resin component of the adhesive resin layer is lower than the concentration of the phenoxy resin in the resin component of the matrix resin,
wherein the concentration of the phenoxy resin in the resin component of the adhesive resin layer is more than 0 parts by mass and less than 50 parts by mass with respect to 100 parts by mass of the resin component,
wherein a shear strength between the metal member and the fiber-reinforced resin material is 0.8 MPa or more as measured by JIS K 6850:1999,
wherein the following Formula (2-2) is satisfied
C>A2+B  Formula (2-2)
wherein, in the above Formula (2-2), A2 represents a tensile load of the metal member alone when the metal-fiber reinforced resin material composite body is broken, B represents a maximum load of the fiber-reinforced resin material alone, and C is a maximum load of the metal-fiber reinforced resin material composite body, and
wherein the resin component of the adhesive resin layer is a resin component in a state having a storage elastic modulus higher than that of the phenoxy resin in a temperature range not lower than a glass transition temperature of the phenoxy resin and not higher than a processing temperature when the fiber-reinforced resin material is heated and pressure-bonded.