Synthesis of copper pyrithione from zinc pyrithione and copper compound

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United States of America Patent

PATENT NO 9540520
APP PUB NO 20140296371A1
SERIAL NO

14239203

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Abstract

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A composition containing unique particles of copper pyrithione wherein greater than 20 wt % to 90 wt % of the particles have a particle size of greater than 10 microns, as determined by laser light scattering using a particle size distribution analyzer, and wherein the particles are flat acicular needle-shaped is described herein. Also described herein is an antifouling paint containing the copper pyrithione and a method of making the composition and antifouling paint.

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Patent Owner(s)

  • ARCH CHEMICALS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kappock, Paul S Cumming, US 9 171
Martin, Robert J Asheville, US 76 902

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