Patent ID: 6468336
Filing Date: 2002-10-22
Classification: C09D

Abstract:
A water-borne shop primer composition comprising(a) 5-40% by volume of a pigment mixture, (b) 1.4-10% by volume of one or more water soluble silicates (based on the dry volume of the silicate), and (c) 40-90% by volume of water, said pigment mixture comprising 40-90% by weight of zinc, 10-60% by weight of micaceous iron oxide, and 0-50% by weight of a second filler selected from the group consisting of iron oxides, natural barium sulphate, precipitated barium sulphate, barytes, blanc fixe, aluminium silicate, kaolin, kaolinite, china clay, magnesium silicate, magnesium hydrosilicate, mica, talc, chlorite, tremolite, silica, surface treated silica, amorphous quartz, crystalline quartz, fumed silica, aluminium oxide, aluminium oxide hydrate, bauxite, calcined bauxite, calcium magnesium carbonate, dolomite, natural calcium carbonate, precipitated calcium carbonate, aluminium silicates, feldspar, nepheline syenite, calcium silicates, wollastonite, zinc oxide, zinc phosphate, graphite, bismuth vanadate, lead chromate, silicium carbide, zeolites, pyrophyllite, glass flakes, iron phosphide, nickel phosphide, hollow spheres, and aluminium.