Metal-coated resin molded article and production method therefor
AssigneesMatsushita Electric Works, Ltd., Sumitomo Chemical Company, Limited
InventorNaoto IKEGAWA
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Abstract
A metal-coated resin molded article is provided, which has improved adhesion between a metal layer and a substrate of a resin composition as well as excellent moldability, heat resistance, electronic and mechanical properties. The resin composition comprises a liquid-crystalline polyester and an epoxy-group containing ethylene copolymer. The ethylene copolymer contains 50 to 99.9 wt % of an ethylene unit and 0.1 to 30 wt % of at least one of an unsaturated carboxylic acid glycidyl ester unit and an unsaturated glycidyl ether unit in the molecule thereof. A content of the ethylene copolymer is in a range of 0.1 to 25 parts by weight with respect to 100 parts by weight of the liquid-crystalline polyester.
Claims16
A metal-coated resin molded article comprising a substrate made of a resin composition and a metal layer formed on said substrate, wherein said resin composition comprises a liquid-crystalline polyester and an epoxy-group containing ethylene copolymer,
- said epoxy-group containing ethylene copolymer contains 50 to 99.9 wt % of an ethylene unit and 0.1 to 30 wt % of at least one of an unsaturated carboxylic acid glycidyl ester unit and an unsaturated glycidyl ether unit in the molecule thereof, and
- a content of said epoxy-group containing ethylene copolymer is in a range of 0.1 to 25 parts by weight with respect to 100 parts by weight of said liquid-crystalline polyester.
A method of producing a metal-coated resin molded article comprising the steps of
- molding a resin composition to obtain a substrate;
- and
- forming a metal layer on a surface of said substrate,
- wherein said resin composition comprises a liquid-crystalline polyester and an epoxy-group containing ethylene copolymer, said epoxy-group containing ethylene copolymer contains 50 to 99.9 wt % of an ethylene unit and 0. 1 to 30 wt % of at least one of an unsaturated carboxylic acid glycidyl ester unit and an unsaturated glycidyl ether unit in the molecule thereof, and a content of said epoxy-group containing ethylene copolymer is in a range of 0. 1 to 25 parts by weight with respect to 100 parts by weight of said liquid-crystalline polyester.
Dependencies are inferred from the claim text.