Multilayer body composed of cured organopolysiloxane films, use of same, and method for producing same

A laminate body, comprising a structure with two or more laminated organopolysiloxane cured films obtained by curing curable organopolysiloxane compositions with different compositions where at least a portion of functional groups involved in the curing reaction are the same, wherein the laminated organopolysiloxane cured films have structures chemically bonded at an interface thereof:

• wherein the curable organopolysiloxane compositions, which are cured to provide an organopolysiloxane cured film, at least contain:
• (A) an organopolysiloxane with a curing reactive group having at least two carboncarbon double bonds in one molecule;
• (B) an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in the molecule, in (in an amount within a range in which the amount of silicon atom-bonded hydrogen atoms in this component is 0.5 to 2.5 mol per 1 mol of the total amount of carbon-carbon double bonds in the composition;
• and component);
• and
• (C) an effective amount of a hydrosilylation reaction catalyst;
• wherein the laminated organopolysiloxane cured films have structures chemically bonded at an interface thereof by a hydrosilylation reaction between the aforementioned component (A) and component (B);
• wherein one of the organopolysiloxane cured films contains electrically conductive microparticles, in which the substance amount [SiH/Vi] Elec of silicon atom-bonded hydrogen atoms in an organohydrogenpolysiloxane component is 0.5 mols or more to 1.0 mol or less per 1 mol of the total amount of carbon-carbon double bonds in the composition;
• wherein the other of the organopolysiloxane cured films is a dielectric layer and does not contain electrically conductive microparticles, and the substance amount [SiH/Vi]DEAP of silicon atom-bonded hydrogen atoms in an organohydrogenpolysiloxane component per 1 mol of carbon-carbon double bonds in the composition is more than 1.0 mol to 2.0 mol;
• and
• wherein the value of [SiH/ViJriec/[SiH/Vi]pEap is within a range of 0.33 to 0.85.