초록 ▼

The apparent scratch resistance of articles coated with a fluoropolymer finish is improved if the article is coated with at least two coats with the topcoat containing mica particles, mica particles coated with a pigment, or metal flake in a smaller amount than is contained in the coat under the top

The apparent scratch resistance of articles coated with a fluoropolymer finish is improved if the article is coated with at least two coats with the topcoat containing mica particles, mica particles coated with a pigment, or metal flake in a smaller amount than is contained in the coat under the topcoat.

대표청구항 ▼

An article bearing a basecoat derived from a composition comprising: (a) a particulate polymer polymerized or copolymerized from monomers selected from one or more monoethylenically unsaturated hydrocarbon monomers and hydrocarbon ether monomers, said monomers being completely substituted with fluor

An article bearing a basecoat derived from a composition comprising: (a) a particulate polymer polymerized or copolymerized from monomers selected from one or more monoethylenically unsaturated hydrocarbon monomers and hydrocarbon ether monomers, said monomers being completely substituted with fluorine atoms or a combination of fluorine atoms and chlorine atoms; (b) mica particles, mica particles coated with pigment, or metal flake; and (c) a liquid carrier; overlaid with a topcoat finish derived from a composition comprising (a), (b) and (c), with the concentration of (b) in the topcoat being from 10% to 90% of the concentration of (b) in the basecoat. A method for improving the apparent scratch resistance of an article bearing a basecoat derived from a composition comprising: (a) a particulate polymer polymerized or copolymerized from monomers selected from one or more monoethylenically unsaturated hydrocarbon monomers and hydrocarbon ether monomers, said monomers being completely substituted with fluorine atoms or a combination of fluorine atoms or chlorine atoms; (b) mica particles, mica particles coated with pigment, or metal flake; (c) a polymer of monoethylenically unsaturated monomers which depolymerizes and whose depolymerization products vaporize in the temperature range of about 150°C. below the fusion temperature of (a) to about the decomposition temperature of (a); and (d) a liquid carrier; the method comprising topcoating the basecoat with a composition comprising (a), (b), (c) and (d), wherein the concentration of (b) in the topcoat is from 10% to 90% of the concentration of (b) in the basecoat, and then fusing the coatings.