Method for producing electroconductive laminate, laminate, and electroconductive laminate

A method for producing an electroconductive laminate having a base material, a patterned plated layer, and a metal layer, the method comprising:

• a step of forming a plated layer forming layer on the base material using a plated layer forming composition containing a polymerization initiator and Compound X or Composition Y below;
• a step of subjecting the plated layer forming layer to a patternwise exposure treatment and then subjecting the exposed plated layer forming layer to a development treatment to form the patterned plated layer containing a portion having a line width of less than 3 μm;
• a step of applying a plating catalyst or a precursor thereof to the patterned plated layer using an alkaline plating catalyst-applying liquid containing the plating catalyst or the precursor thereof;
• and
• a step of subjecting the patterned plated layer to which the plating catalyst or the precursor thereof has been applied to a plating treatment using a plating liquid containing at least one of an aminocarboxylic acid or an aminocarboxylic acid salt to form the metal layer on the patterned plated layer.
• Compound X:
• a compound having a functional group capable of interacting with a plating catalyst or a precursor thereof, and a polymerizable group
• Composition Y:
• a composition containing a compound having a functional group capable of interacting with a plating catalyst or a precursor thereof, and a compound having a polymerizable group