Patent ID: 11958268
Assignee: NIPPON STEEL CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A metal-carbon fiber reinforced plastic material composite, comprising:
a metal member;
a carbon fiber reinforced plastic material that contains a predetermined matrix resin and a carbon fiber material present in the matrix resin; and
one or two layers of coating layers provided between the metal member and the carbon fiber reinforced plastic material, wherein
in the case where the coating layer consists of one layer, the coating layer is a coating layer that is arranged on at least a portion of the metal member, contains a predetermined resin as a main component thereof, and contains an isocyanate group, and the matrix resin is a matrix resin that contains a phenoxy resin as a main component thereof, wherein an epoxy group in the phenoxy resin and an unreacted isocyanate present in the coating layer are chemically bonded to form bonds represented in the following (structural formula 1) in the vicinity of an interface between the carbon fiber reinforced plastic material and the coating layer, and
in the case where the coating layer consists of two layers, the first coating layer that is located on the metal member side is a coating layer that is arranged on at least a portion of the metal member, contains a predetermined resin as a main component thereof, and contains an isocyanate group, and the second coating layer that is located on the carbon fiber reinforced plastic material side is a coating layer that is arranged on at least a portion of the first coating layer and contains an epoxy resin as a main component thereof, and has bonds represented in the following (structural formula 1) in the vicinity of an interface between the first coating layer and the second coating layer,, wherein, in the above (structural formula 1), R1 represents an epoxy side chain and R2 represents an isocyanate side chain.