Process for manufacturing plastic articles having on the surface thereof a protected metal film

Claim 1

A process for manufacturing molded plastic articles having on the surface thereof a metal film coated with protective layers, characterized by (1) applying over said metal film a layer A consisting essentially of an acrylic copolymer of a lower alkyl ester of acrylic or methacrylic acid and a lower hydroxy-alkyl ester of acrylic or methacrylic acid and having a hydroxyl number of 10-150, and per 100 parts by weight of said copolymer 10-150 parts by weight of an anti-yellowing polyisocyanate and 2-10 parts by weight of an ultraviolet ray-absorbing agent and subjecting the mixture to heating to react the same; and then (2) while free hydroxyl groups are present in said layer A, applying over the heated layer A a layer B consisting essentially of an unsaturated polyester having terminal hydroxyl or carboxyl groups and about 10-80 parts by weight of an anti-yellowing polyisocyanate per 100 parts of said unsaturated polyester, which layer is curable by the action of ultraviolet rays and then curing the latter paint by irradiation of ultraviolet rays, or alternatively, reversing the order of said applying and corresponding curing steps A and B.