Bright electroless plating process and plated articles...

B - Operations – Transporting – 32 – B

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B32B 15/08 (2006.01) C23C 3/02 (1980.01)

Patent

CA 1136006

Abstract of the Disclosure An adherent bright metallic coating which may be any metal or alloy capable of being deposited electrolessly, is applied to the surface of a plastic or other dielectric part (or to a metal part) by an electroless process comprising suitable pre-treatment of said surface, deposition of a primary electroless copper to produce an underlayer, then depositing a bright secondary electroless coating of the desired metal (the overlayer) with complete elimination of any subsequent electroplating process [usually required to achieve this brightness]. The required overlayer may also be limited to selected surface areas of a coated part by mechanically re- moving portions of the primary electroless copper prior to immersion of the part in the secondary electroless bath to produce the desired overlayer metal.

321322

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