Exposing carboxyl polymer-polyepoxide powder to amine for powder coating
AssigneeE. I. Du Pont de Nemours and Company
InventorSamuel David Arthur
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Abstract
A process for preparing a heat curable powder coating composition comprises exposing a powder comprising a carboxyl-functional polymer and a polyepoxy compound to an amine selected from the group consisting of organic amines and ammonia under mild conditions, particularly temperatures of between −30° C. and 50° C.
Claims15
A process for preparing a heat curable coating composition, comprising exposing a powder comprising a carboxyl-functional polymer and a polyepoxy compound to an amine selected from the group consisting of organic amines and ammonia under mild conditions.
A process for preparing a heat curable coating composition, comprising exposing a powder comprising a carboxyl-functional polymer and a polyepoxy compound to a catalyst that is a non-ionic nitrogen-containing compound substantially free of ions.
Dependencies are inferred from the claim text.