Temporary camouflage paint
AssigneePotter Paint Co.
InventorKenneth G. Meades
Life of this patent
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Abstract
A temporary removable water-based paint produces a protective film which is insensitive to water or weather, but washes off with an ammonia gel. The paint is waterborne employing an acrylic copolymer as a vehicle, and an acetylenic dispersant to disperse the pigment particles in the acrylic copolymer. The acetylenic dispersant is present in an amount of 3-5% by weight of the pigment. The acetylenic dispersant has the property that after it is applied, it becomes water insensitive so it does not rewet on exposure to moisture.
Claims8
A water-based paint or coating composition which produces a protective film that when dry is insensitive to water and weather but which can be rendered soluble by application of an alkali solution, the paint or coating composition comprising an aqueous suspension of an alkali-soluble acrylic copolymer dispersion resin, one or more pigments dispersed in the suspension, a tertiary acetylenic glycol dispersant in suitable amount equal to about 2-3% by weight of the pigments to serve as a primary dispersant for dispersing said pigments in said suspension, and aqueous ammonia in sufficient quantity to adjust the pH of the composition to be at least slightly basic, said tertiary acetylenic glycol dispersant having the property that it is water soluble until the composition is applied but becomes insensitive to moisture after the protective film has dried.
Dependencies are inferred from the claim text.