Aqueous dispersion of zinc compound modified polymers

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 167/08 (2006.01) C08K 3/00 (2006.01) C08K 5/00 (2006.01) C08L 67/08 (2006.01) C09J 167/08 (2006.01)

Patent

CA 2687302

An aqueous polymer dispersion contains zinc compound-modified polymer. The zinc compound-modified polymer is produced by the incorporation of zinc compound into the acrylic-modified alkyd by mixing at the temperatures of higher than 50oC. The resulting polymer is then dispersed in water by salt formation with a base. The aqueous dispersion of the present invention offers improved coating properties of early water-spot resistance, hardness, ink stain blocking and scrub resistance while demonstrating the viscosity stability.

Une dispersion polymère aqueuse contient un polymère modifié par un composé du zinc. Le polymère modifié par un composé du zinc est produit par l'incorporation du composé du zinc dans l'alkyde à modification acrylique par mélange aux températures supérieures à 50°C. Le polymère résultant est dispersé dans l'eau par la formation d'un sel avec une base. La dispersion aqueuse de la présente invention offre des propriétés de revêtement améliorées de résistance aux taches d'eau précoces, de dureté, de blocage de tache d'encre et de résistance à l'abrasion, tout en présentant une stabilité de la viscosité.

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