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US 9,181,622 B2Granted
Process for metallizing nonconductive plastic surfaces
AssigneeAtotech Deutschland GmbH
InventorHermann Middeke
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Abstract
The present invention relates to a process for metallizing electrically nonconductive plastic surfaces of articles. During the process, the rack to which the said articles are fastened is subjected to a treatment for protection against metallization. Subsequently, the articles are metallized by means of known processes, wherein the racks remain free of metal.
Claims20
Process for metallizing electrically nonconductive plastic surfaces of articles, comprising the separate process steps of:
- A) fastening the article to a rack,
- B) etching the plastic surface with an etching solution;
- C) treating the plastic surface with a solution of a metal colloid or of a compound of a metal, the metal being selected from the metals of transition group I of the Periodic Table of the Elements and transition group VIII of the Periodic Table of the Elements, and
- D) metallizing the plastic surface with a metallizing solution;
- wherein the rack is treated with a solution comprising iodate ions and the treatment of the rack with a solution comprising iodate ions is performed prior to process step C).
2 more elements
Dependencies are inferred from the claim text.