Flame retardant coatings

US9688867B2 · kind B2 · utility

Assignees

• AMERICAN UNIVERSITY · US
• The United States of America, as Represented by the Secretary of Commerce National Institute of Standards and Technology · US

Inventors

• Mauro Zammarano · Gaithersburg, US
• Douglas Fox · Reston, US
• Philipp Grützmacher · Rathsberg, DE
• Rick Davis · Urbana, US

Key dates

• Filing date: Jul 21, 2014
• Grant date: Jun 27, 2017
• Expiry date: Dec 19, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/52
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A flame retardant coating composition comprising poly(dopamine) and either tris(hydroxymethyl)aminomethane) or gaseous ammonia, as well as an article comprising a substrate and the flame retardant coating composition, is provided. In various embodiments, the poly(dopamine) is substantially water insoluble. The coating composition can further comprise at least one additional component selected from the group consisting of melamine, an anionic clay, a phosphorus-containing compound, an amine-containing compound, aluminosilicates, silicon oxides, and combinations thereof. Also provided are methods for forming the flame retardant coating composition and methods for increasing flame retardant properties of a substrate.