A coating composition

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 7/12 (2006.01) C09D 5/00 (2006.01) C09D 5/02 (2006.01) C09D 5/22 (2006.01)

Patent

CA 2603961

A coloured coating composition comprising a white base paint and at least one coloured pigment in a form that can be readily mixed with the white base paint, the white base paint comprising a film-forming polymer, a liquid carrier, one or more opacifying white pigments and one or more extenders, the coloured coating composition having a light reflectance value Y less than 110, and greater than that defined by the equation Y = mC + K, where 25 > C > 1.0, C being the chroma of the coloured coating composition, m and K being empirical coefficients selected according to the type and number of the type of the at least one coloured pigment, and dependant on the hue angle of the coating composition.

L~invention concerne une composition de revêtement colorée comprenant une peinture blanche de base et au moins un pigment coloré sous une forme pouvant facilement être mélangée avec la peinture blanche de base, ladite peinture blanche de base comprenant un polymère filmogène, un véhicule liquide, un ou plusieurs pigments blancs opacifiants et une ou plusieurs matières de charge, ladite composition de revêtement colorée ayant une valeur de réflectance de la lumière Y inférieure à 110 et supérieure à la valeur définie par l~équation Y = mC + K, avec 25 > C > 1,0, C représentant l~indice de couleur de la composition de revêtement colorée, m et K étant des coefficients empiriques choisis selon le type et le nombre de types du ou des pigments colorés et dépendant de l~angle de nuance de la composition de revêtement.

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