Aqueous coating composition

Details Aqueous coating composition Aqueous coating composition

C - Chemistry, Metallurgy

09

D

C09D 163/02 (2006.01) B05D 3/02 (2006.01) C09D 5/08 (2006.01)

Patent

CA 2201724

An aqueous coating composition and a method of coating a metal substrate are provided. The composition and method are particularly suitable for use in coating can bodies and can ends or for can side seam coatings. The coating composition includes a solvent component and a film forming component. The solvent component includes water and an organic solvent. The film forming component includes a curing agent and the product of the reaction of a carboxy addition polymer and an epoxy resin in the presence of a tertiary amine catalyst.

L'invention se rapporte à une composition de revêtement aqueuse et à un procédé de revêtement d'un substrat métallique. La composition et le procédé sont particulièrement appropriés à l'utilisation dans l'enduction de corps et d'extrémités de boîtes métalliques ou de soudures latérales de boîtes. La composition de revêtement comprend un composant à base de solvant et un composant filmogène. Le composant à base de solvant comprend de l'eau et un solvant organique. Le composant filmogène comprend un agent de durcissement et le produit de réaction d'un polymère d'addition carboxy et d'une résine époxy en présence d'un catalyseur d'amine tertiaire.

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