Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 16, 2021
Patent Application Number
16461110
Date Filed
November 22, 2017
Patent Primary Examiner
Patent abstract
The present invention relates to a chrome free etch for plating on plastic processes, wherein plastic surfaces are contacted in a first etching step with an etching solution at least comprising Mn(IV)-ions and, in a second etching step, with a solution at least comprising Mn(III)- and Mn(VII)-ions prior to the metal plating step.
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