Method to coat metals onto surfaces

US11976377B2 · kind B2 · utility

Assignee

• Earth Science Laboratories, Inc. · US

Inventors

• Nam Tran · Chicago, US
• John A. Hatten, Jr. · Rogers, US
• Reid Henry Bowman · Ojai, US
• Jeffrey Alan Keiser · Rogers, US
• David Hammond · Berkeley, US
• Freddie L. Singleton · Fruit Cove, US
• David Nicholas · Pensacola, US

Key dates

• Filing date: Dec 14, 2022
• Grant date: May 7, 2024
• Expiry date: Dec 14, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C18/44
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Described herein are methods of applying metals to substrates, where the methods include contacting the substrate with an aqueous metal plating composition comprising polyammonium bisulfate (“PABS”) and a dissolved metal or salt thereof. The methods allow application of metals to the substrate without need for electrical energy input or for an added chemical catalyst, chelating agent, complexing agent, reducing agent, stabilizer, or pH-modifying (or controlling) chemical compound.