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US 12,215,424 B2Granted
Metal resin composite, preparation method thereof, and electronic product housing having the same
AssigneeBYD Company Limited
InventorsJunlan Lian, Hongye Lin, Fan Chen, Weitu Li
Life of this patent
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Abstract
A metal resin composite includes a metal substrate, a metal layer formed on a surface of the metal substrate, and a resin layer formed on the metal layer. A plurality of microcracks are formed at a surface of the metal layer.
Claims9
A preparation method for a metal resin composite, comprising:
- forming a metal layer on a metal substrate;
- forming a plurality of microcracks on a surface of the metal layer by contacting the metal layer on the metal substrate with a treating agent containing an acid and an oxidizing agent, wherein each microcrack is an elongate groove along the surface of the metal layer, and a depth of the microcracks is 2000-3000 nm and a width of the microcracks is 230-370 nm;
- and
- forming a resin layer on the metal layer,
- wherein at least a part of the plurality of microcracks are connected to each other and form an interconnected network of microcracks.
2 more elements
Dependencies are inferred from the claim text.