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Dupont patents

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World



Dupont patents
EPOXY POWDER COATING
Patent No. U.S. 7,323,234 B2
E.I. du Pont de Nemours & Company has received a patent for an epoxy powder coating composition comprised of an intimate mixture of approximately 60-80% weight, based on the total weight of the powder coating composition, of at least one epoxy resin; 0.020-6.0% weight, based on total weight of the powder coating composition, of at least one alkanolamine; at least one epoxy curing agent in an effective amount to cure the powder coating composition; and 1.5-2.5% weight, based on the total weight of the powder coating composition, of at least one zinc borate compound; wherein the component are not reacted prior to being mixed together.

Patent No. U.S. 7,323,234 B2
E.I. du Pont de Nemours & Company has received a patent for an epoxy powder coating composition comprised of an intimate mixture of approximately 60-80% weight, based on the total weight of the powder coating composition, of at least one epoxy resin; 0.020-6.0% weight, based on total weight of the powder coating composition, of at least one alkanolamine; at least one epoxy curing agent in an effective amount to cure the powder coating composition; and 1.5-2.5% weight, based on the total weight of the powder coating composition, of at least one zinc borate compound; wherein the component are not reacted prior to being mixed together.

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