Laminated article having excellent stain-proofing property and interlayer adhesion and method of production of same

A method of producing a laminated article, the laminated article comprising a substrate (III), a primer layer (II) provided on the substrate (III) and a top coat layer (I) provided directly on the primer layer (II), in which

• the top coat layer (I) is formed with a cured article of a top coat composition comprising (A) a curable fluorine-containing resin, (B) a curing agent and (C) a coupling agent comprising a functional group-containing silane coupling agent and/or an aluminum chelating agent, and
• the primer layer (II) is formed with a primer composition comprising (D) a polydiorganosiloxane, (E) a polyorganosiloxane resin and (F) a coupling agent comprising a functional group-containing silane coupling agent and/or an aluminum chelating agent,
• wherein (B) the curing agent is at least one curing agent selected from the group consisting of an isocyanate curing agent and an amino curing agent,
• the isocyanate curing agent being at least one selected from the group consisting of 2,4-tolylene diisocyanate, diphenylmethane-4,4′-diisocyanate, xylylene diisocyanate, isophorone diisocyanate, lysine methyl ester diisocyanate, methylcyclohexyl diisocyanate, trimethylhexamethylene diisocyanate, hexamethylene diisocyanate, n-pentane-1,4-diisocyanate, trimers thereof, adducts and biurets thereof, polymers thereof having at least two isocyanate groups, and blocked isocyanates;
• the amino curing agent being at least one selected from the group consisting of a melamine resin, urea resin, guanamine resin, amine adduct, and polyamide,
• wherein (D) the polydiorganosiloxane comprises repeating siloxane units of the formula R2SiO2/2, in which R is a substituted or unsubstituted monovalent hydrocarbon group,
• wherein (E) the polyorganosiloxane resin comprises siloxane units of the formula R3SiO1/2, in which R is a substituted or unsubstituted monovalent hydrocarbon group, and siloxane units of the formula SiO4/2,
• wherein a molar ratio of the R3SiO1/2 siloxane units to the SiO4/2 siloxane units in (E) the polyorganosiloxane resin is within a range of 0.5 to 1.5, and
• wherein the substrate (III) is a silicone rubber substrate,
• which method comprises:
• a step for forming a coating film of a primer composition comprising (D) the polydiorganosiloxane, (E) the polyorganosiloxane resin and (F) the coupling agent comprising a functional group-containing silane coupling agent and/or an aluminum chelating agent on the substrate (III) directly or through an intervenient layer,
• a step for forming an uncured top coat layer by applying a top coat composition comprising (A) the curable fluorine-containing resin, (B) the curing agent and (C) the coupling agent comprising a functional group-containing silane coupling agent and/or an aluminum chelating agent, and
• a step for curing the uncured top coat layer.