Aqueous coating binders for corrosion protection, wood and...

Details Aqueous coating binders for corrosion protection, wood and... Aqueous coating binders for corrosion protection, wood and...

C - Chemistry, Metallurgy

09

D

C09D 163/00 (2006.01)

Patent

CA 2675218

This invention relates to binder mixtures comprising mass fractions of from 70 % to 98 % of chain-extended epoxy amine adducts A and from 2 % to 30 % of carboxy functional polyesters B that contain a limited amount of aromatic constituents in mass fractions of up to 15 % and have an acid number of from 4 mg/g to 50 mg/g, a method of making these binder mixtures, and a method of use thereof in coatings for metals, wood, cardboard, plaster, and concrete.

Cette invention concerne des mélanges liants comprenant des fractions massiques de 70 % à 98 % de produits d'addition époxy amine à chaîne étendue A et de 2 % à 30 % de polyesters à fonctionnalité carboxy B qui contiennent une quantité limitée de constituants aromatiques en fractions massiques allant jusqu'à 15 % et ont un indice d'acide de 4 mg/g à 50 mg/g. L'invention concerne également un procédé de fabrication de ces mélanges liants et un procédé d'utilisation de ces mélanges dans des revêtements pour les métaux, le bois, le carton, le plâtre et le béton.

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