Intumescent coating composition with enhanced metal adhesion

US8921456B2 · kind B2 · utility

Assignee

• Evonik Röhm GmbH · DE

Inventors

• Gunter Schmitt · Darmstadt, DE
• Peter Neugebauer · Barmstedt, DE
• Sybille Scholl · Rodenbach, DE
• Heike Heeb · Niederrodenbach, DE
• Peter Reinhard · Dreieich, DE
• Gilbert Kühl · Hanau, DE

Key dates

• Filing date: Mar 7, 2012
• Grant date: Dec 30, 2014
• Expiry date: Mar 22, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31895
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An intumescent coating composition and a process for curing the coating to obtain an intumescent coating is provided. The intumescent coating composition contains a thermoplastic polymer which comprises as a copolymerized component, an acid (meth)acrylate or a copolymerizable polyfunctional carboxylic acid; at least one ethylenically unsaturated monomer; an azo or organic peroxide initiator; an acid source; a carbon source; and a gas source.