Dupont Powder Coatings USA, Inc.

E.i. Dupont De Nemours and Company

Peter Gottschling

Frederick L Cummings

Jeffrey R Hagerlin

Maria Strid

Owen H Decker

M Aaron Sparks

Zbigniew Stachyra

This invention relates to a powder coating composition comprising a mixture of conventional, possibly coloured, non-conductive thermosetting powder coating compositions with highly conductive thermosetting powder coating compositions so as to produce a coating having an electrical surface resistance of less than 10 &OHgr; (ohm), preferably of less than 10 &OHgr; (ohm), and to the substrates coated therewith. This invention also relates to using a mixture of non-conductive and conductive powder coating compositions to produce a coated surface having an electrical surface resistance sufficiently low to possess antistatic properties.

Antistatic powder coating compositions and their use

Improved powder coatings exhibit enhanced resistance to bacterial and fungal attack, while possessing excellent toughness, appearance, corrosion resistance, durability, processability, and ease of application. The coating is comprised of anti-microbial agents melt-processed into the matrices of coating powders or bonded to coating powders. An article may be coated with a thermoset or thermoplastic powder that may be applied by electrostatic spray or fluidized bed or by thermal or flame spray.

Anti-microbial power coating

Improved powder coatings exhibit enhanced resistance to bacterial and fungal attack, while possessing excellent toughness, appearance, corrosion resistance, durability, processability, and ease of application. The coating is comprised of anti-microbial agents melt-processed into the matrices of powder coatings. An article may be coated with a thermoset or thermoplastic powder which may be applied by electrostatic spray, by dipping it into a fluidized bed (or electrostatically charging it and then dipping it into the fluidized bed), or by thermal or flame spray.

Anti-microbial powder coatings

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Columbus, OH, United States of America

Peter Gottschling