Patent ID: 8114922
Filing Date: 2012-02-14
Classification: B32B,C09D,Y10T

Abstract:
1. An ink comprising: metal thin film fragments having an average thickness of 0.01 to 0.1 gm and an average particle diameter of 5 to 25 μm; and a binder resin having 50 to 500 mmol/kg of at least one selected from the group consisting of a carboxyl group, a phosphoric acid group, a sulfonic acid group and metal salts thereof; wherein the binder resin is selected from the group consisting of a. a vinyl chloride resin, a vinylidene chloride resin, a vinyl chloride-vinyl acetate resin, a ethylene-vinyl acetate resin, a polyolefin resin, a chlorinated olefin resin, or an ethylene-acrylic resin wherein the vinyl chloride resin, the vinylidene chloride resin, the vinyl chloride-vinyl acetate resin, the ethylene-vinyl acetate resin, the polyolefin resin, the chlorinated olefin resin, and the ethylene-acrylic resin contain maleic anhydride, fumaric acid or salts thereof; b. a petroleum-based resin, an epoxy resin, or a cellulose derivative resin, wherein the petroleum-based resin, the epoxy resin, and the cellulose derivative resin are modified with chloroacetic acid, bromoacetic acid, or sulfuric acid; or c. a polyurethane resin, an amide-modified polyurethane resin, a urea-modified polyurethane resin, an epoxy-modified polyurethane resin, a polyester resin, an amide-modified polyester resin, a urea-modified polyester resin, or an epoxy-modified polyester resin, wherein the polyurethane resin, the amide-modified polyurethane resin, the urea-modified polyurethane resin, the epoxy-modified polyurethane resin, the polyester resin, the amide-modified polyester resin, the urea-modified polyester resin, and the epoxy-modified polyester resin is obtained by condensation of a polyol and/or a polycarboxylic acid and 2,2-dimethylolpropionic acid, phthalic acid having a sulfonic acid group, diethanolaminoethylphosphoric acid, or salts thereof.