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Patents

Rohm and Haas

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

Rohm and Haas
Patents Powder Coating
Patent No. U.S. 6,905,778 B2
Rohm and Haas Company has obtained a patent for a cured powder coating composition. It is comprised of the reaction product of an acid-functional polyester thermoset resin and a matting agent selected from styrene-maleic anhydride copolymers having a glass transition temperature (Tg) of at least 45° C and up to 110° C and an acid number of at least 110 mg KOH/g and up to 210 mg KOH/g.

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