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

Claim 9:
10. The method of producing the metal-carbon fiber reinforced plastic material composite according to claim 7, wherein
in the coating material used in the step of forming the coating layer or the first coating layer, as the blocked isocyanate, a first blocked isocyanate and a second blocked isocyanate that has a dissociation temperature higher than that of the first blocked isocyanate are contained,
the content of the first blocked isocyanate is 1.0 to 1.2 equivalents with respect to the amount of functional groups that react with the first blocked isocyanate present in the resin contained in the coating material,
the content of the second blocked isocyanate is 0.2 to 0.5 equivalents with respect to the amount of functional groups that react with the first blocked isocyanate present in the resin contained in the coating material,
when in the step of forming the coating layer or the first coating layer, a dissociation temperature of the first blocked isocyanate is set to al, a dissociation temperature of the second blocked isocyanate is set to α2, and the thermocompression bonding temperature in the step of bonding by the thermocompression bonding is set to γ, the maximum attained temperature β is set so as to satisfy α1≤β≤α2≤γ.