Quick-drying aqueous coating compositions

Details Quick-drying aqueous coating compositions Quick-drying aqueous coating compositions

C - Chemistry, Metallurgy

09

D

C09D 5/02 (2006.01) C04B 41/48 (2006.01) C04B 41/63 (2006.01) C04B 41/83 (2006.01) C09D 133/06 (2006.01) C09D 201/02 (2006.01) E01F 9/08 (2006.01)

Patent

CA 2199088

Disclosed are aqueous coating compositions containing a latex having pendant amine-functional groups, wherein such latex has a Tg greater than about 0 °C and is capable of film formation at application temperatures, and an amount of base sufficient to raise the pH of the composition to a point where essentially all of the amine functional groups are in a non-ionic state. Also disclosed are methods for producing fast drying coatings on suitable substrates by application of such coatings, where such coatings develop early water-resistance.

On décrit des compositions de revêtement à l'eau contenant un latex comportant des groupes fonctionnels amine pendants, dans lesquelles le latex possède une Tg supérieure à environ 0 degré C et est capable de former une pellicule aux températures d'application, et une quantité de base suffisante pour élever le pH de la composition à un point où essentiellement tous les groupes fonctionnels amine sont dans un état non ionique. On décrit également des méthodes pour produire des revêtements à séchage rapide sur des substrats appropriés par l'application de ces revêtements, lesquels revêtements deviennent rapidement résistants à l'eau.

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