Paint
OwnerKurt E. G. Bierinventor
Life of this patent
Estimating the term…
Abstract
A water-based paint which comprises a constituent selected from fillers and pigments as well as an aqueous phase comprising one or more water-soluble salts in an amount sufficient to substantially prevent dissolution in the paint of water-soluble organic or inorganic colored substances. The water-soluble salt/salts may be present in a concentration of at or above 10% (weight/volume), in particular at or above 35%, such as up to 70% (weight/volume). The paint is useful for the painting of stained interior building surfaces without allowing water-soluble stains to seep through the wet paint.
Claims14
A water-based pigmented paint exhibiting the property of substantially preventing dissolution of water-soluble organic or inorganic colored substances present on a surface to which said paint is applied, said paint composition comprising:
- a pigment, said pigment being present in said paint composition in an amount of on the order of at least about 5% by weight;
- a filler, said filler being present in said paint composition on the order of from about 20 to about 70% by weight, based on the weight of said composition;
- and
- an aqueous phase containing a water-soluble salt, or a mixture of water-soluble salts, in an amount of at least about 10% (weight/volume) of said aqueous phase.
A water-based pigmented paint composition exhibiting the property of substantially preventing dissolution of water-soluble organic or inorganic colored substances present on a surface to which said paint is applied, said paint composition consisting essentially of:
- a pigment, said pigment being present in said composition in an amount of on the order of at least about 5% by weight;
- a filler, said filler being present in said composition on the order of from about 20 to about 70% by weight of said composition;
- an aqueous phase containing a water-soluble salt, or a mixture of water-soluble salts, said salt present in said paint composition in an amount of at least 10% (weight/volume) of said aqueous phase;
- a binder, said binder present in said paint composition in an amount of from about 3 to about 20% by weight, based on the weight of said paint composition;
- reinforcing fiber, said fiber selected from the group consisting of glass, diabas, polyethylene, polypropylene, polyester, polyacrylonitrile and mixtures thereof, said fibers having a length of from about 2 to 10 mm and present in said paint composition in an amount of up to about 5% by weight;
- a hydrophobizing agent selected from the group consisting of silicone oil, silicone resin, fluorinated silicone, wax emulsions and polyethylene dispersions, said agent present in said paint composition in an amount of up to about 15% by weight;
- a viscosity-reducing agent selected from saccharides, polysaccharides and polyhydric alcohols, said agent present in said paint composition in an amount of from about 1 to about 20% by weight;
- surfactant selected from lecithin, alkyl sulfates, alkyl sulfonates and polyoxyethylene derivatives, said surfactant present in said paint composition in an amount of up to about 2% by weight;
- an anti-foaming agent selected from silicone and fatty alcohols, said agent present in said paint composition in an amount of up to about 0.5% by weight;
- and
- a crystal formation-retarding agent selected from potassium hexacyanoferrate, potassium ferricyanide, potassium cyanate and potassium thiocyanate, said agent present in said paint composition in an amount of up to about 5% by weight.
Dependencies are inferred from the claim text.