Patent ID: 7955714
Filing Date: 2011-06-07
Classification: C09D,Y10T

Abstract:
1. A metal material comprising: a substrate selected from the group consisting of iron, steel, copper, aluminum, and zinc plated steel; and a coating of a coating composition which is formed on the surface of the substrate, wherein the coating composition comprises: (A) 100 parts by weight of at least one synthetic resin solid content selected from the group consisting of (meth)acrylate resin emulsion, styrene-acrylate copolymer emulsion, vinyl acetate resin emulsion, vinyl acetate-(meth)acrylate copolymer emulsion, urethane resin emulsion, ethylene-vinyl acetate copolymer emulsion, polyester resin, and aqueous epoxy resin; (B) 1 to 200 parts by weight of at least one filler selected from the group consisting of titanium dioxide, talc, kaolin, bentonite, mica, silica, heavy calcium carbonate, clay, precipitated barium sulfate, carbonic acid barium, glass beads, and resin beads; and (C) 0.01 to 10 parts by weight of a mixture of (C-1) 10 to 90% by weight of at least one member selected from an acetylene glycol represented by the following general formula (1): wherein R 1 and R 2 are respectively an alkyl group containing 1 to 5 carbon atoms; an ethylene oxide-propylene oxide block adduct of an acetylene glycol represented by the following general formula (2): wherein R 3 and R 4 are respectively an alkyl group containing 1 to 5 carbon atoms, A is —(C 2 H 4 O) w1 —(C 3 H 6 O) x1 —(C 2 H 4 O) y1 —(C 3 H 6 O) z1 —H, and B is —(C 2 H 4 O) w2 —(C 3 H 6 O) x2 —(C 2 H 4 O) y2 —(C 3 H 6 O) z2 —H, wherein w1, w2, x1, x2, y1, y2, z1, and z2 are respectively 0 or a positive number of 0.5 to 25, w1+w2+y1+y2 is 0.5 to 50, x1+x2+z1+z2 is 0.5 to 50, and w1+w2+x1+x2+y1+y2+z1+z2 is 1 to 100; and ethylene oxide-propylene oxide random adducts of an acetylene glycol represented by the following general formula (3): wherein R 5 and R 6 are respectively an alkyl group containing 1 to 5 carbon atoms, D is —(C 2 H 4 O/C 3 H 6 O) m —H, and E is —(C 2 H 4 O/C 3 H 6 O) n —H; wherein m and n are respectively 0 or a positive number of 0.5 to 50, and m+n is 1 to 100; (C-2) 10 to 90% by weight of at least one polyoxyalkylene alkyl ether having both ethylene oxide and propylene oxide units and having an HLB of 8 to 18 represented by the following general formula (4): wherein R 7 is an alkyl group containing 1 to 20 carbon atoms, v, w, x, y, and z are respectively 0 or a positive number of 1 to 20, with the proviso v+w+x+y+z>0; and (C-3) 0 to 25% by weight of water and/or water soluble organic solvent.