Abstract: An inorganic chromium-free metal surface treatment agent contains a compound X containing a metal X1, ionic species of which containing the metal X1 become cations in an aqueous solution, and a compound Y containing a metal Y1, ionic species of which containing the metal Y1 become anions in an aqueous solution, a total content of the compound X being from 0.01 to 10% by mass, a total content of the compound Y being from 0.01 to 10% by mass, a molar ratio of the metal X1 in the cation and the metal Y1 in the anion being from 0.1 to 5, the metal X1 being at least one member selected from the group consisting of Ti, Zr and Al, the metal Y1 being at least one member selected from the group consisting of Ti, Zr, Si, B and Al, and the metal surface treatment agent containing substantially no organic resin.

Abstract: An inorganic chromium-free metal surface treatment agent contains a compound X containing a metal X1, ionic species of which containing the metal X1 become cations in an aqueous solution, and a compound Y containing a metal Y1, ionic species of which containing the metal Y1 become anions in an aqueous solution, a total content of the compound X being from 0.01 to 10% by mass, a total content of the compound Y being from 0.01 to 10% by mass, a molar ratio of the metal X1 in the cation and the metal Y1 in the anion being from 0.1 to 5, the metal X1 being at least one member selected from the group consisting of Ti, Zr and Al, the metal Y1 being at least one member selected from the group consisting of Ti, Zr, Si, B and Al, and the metal surface treatment agent containing substantially no organic resin.

Abstract: It is an object of the present invention to provide a pretreatment method for coating, which does not limit a coating method, places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc, aluminum and so on. A pretreatment method for coating comprising treating a substance to be treated by a chemical conversion coating agent to form a chemical conversion coat, wherein the chemical conversion coating agent comprises: at least one kind selected from the group consisting of zirconium, titanium and hafnium; fluorine; and at least one kind selected from the group consisting of amino group-containing silane coupling agents, hydrolysates thereof and polymers thereof.

Abstract: A method for coating metallic surfaces with a paint or paint-like coating prior to forming.

Abstract: It is an object of the present invention to provide a chemical conversion coating agent containing no chromium and capable of applying good chemical conversion treatment which is equal to or more than chemical conversion treatment by zinc phosphate to all metals such as iron, zinc and aluminum. A chemical conversion coating agent comprising: at least one kind selected from the group consisting of zirconium, titanium and hafnium; fluorine; and a water-soluble epoxy compound containing an isocyanate group and/or a melamine group, wherein a content of the at least one kind selected from the group consisting of zirconium, titanium and hafnium in the chemical conversion coating agent is 20 to 10000 ppm in terms of metal, and a content of the water-soluble epoxy compound containing the isocyanate group and/or the melamine group in the chemical conversion coating agent is 5 to 5000 ppm as a concentration of solid matter.

Abstract: The invention relates to a method for coating a metallic strip. The strip or optionally, the strip sections produced from said strip in the subsequent process, is/are first coated with at least one anticorrosion layer—according to an alternative form of embodiment, this can be left out—and then with at least one layer of a paint-like coating containing polymers. After being coated with at least one anticorrosion layer or after being coated with at least one layer of a paint-like coating, the strip is divided into strip sections. The coated strip sections are then formed, joined and/or coated with at least one (other) paint-like coating and/or paint coating.

Abstract: The present invention disclosure provides a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum, and a surface-treated metal obtained using the same.

Abstract: A chemical treatment method in which an object to be treated is treated with a chemical treating agent to form a chemical conversion coating, in which the object to be treated has at least one aluminum-plated steel sheet and at least one member selected from the group consisting of cold-rolled steel sheets, zinc-plated steel sheets, and aluminum sheets and the chemical treating agent is one which has zirconium, fluorine, and an aminated silane coupling agent and in which the zirconium content is 100-700 ppm in terms of metal amount and the fluorine/zirconium ratio is 3.5-7.0 by mole. A sufficient coating amount can be ensured on the surface of a zinc deposit, cold-rolled steel sheet, zinc-plated steel sheet, aluminum-plated steel sheet, or the like and a chemical conversion coating having sufficient base-hiding properties and sufficient adhesion can be formed.

Abstract: It is an object of the invention to provide a chemical conversion treating agent containing no chromium and exhibiting high corrosion resistance and excellent stability. A chemical conversion treating agent comprising: zirconium; fluorine; (A) at least one compound selected from the group consisting of amino group-containing silane coupling agents, their hydrolyzed products, and their polymers; and (B) an amino group-containing water-borne phenol compound; wherein the content of zirconium in the chemical conversion treating agent is 25 to 2000 ppm on the metal equivalent basis, and the mole ratio of the contents of fluorine and zirconium satisfies the following relation: 3?F/Zr?6.

Abstract: It is an object of the present invention to provide a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum. A chemical conversion coating agent comprising: at least one kind selected from the group consisting of zirconium, titanium and hafnium; fluorine; and an adhesion and corrosion resistance imparting agent, wherein said adhesion and corrosion resistance imparting agent is at least one kind selected from the group consisting of: 1 to 5000 ppm (metal ion concentration) of at least one kind of metal ion (A) selected from the group consisting of zinc ion, manganese ion and cobalt ion; 1 to 5000 ppm (metal ion concentration) of alkaline earth metal ion (B); 1 to 5000 ppm (metal ion concentration) of metal ion (C) of Group III in the periodic table; 0.5 to 100 ppm (metal ion concentration) of copper ion (D); and 1 to 5000 ppm (as a silicon component) of a silicon-containing compound (E).

Abstract: A method for coating metallic surfaces with a paint or paint-like coating prior to forming.

Abstract: A composition and a method for coating a metallic surface with the composition, wherein the composition contains water, at least one organic film former containing a water-soluble polymer or a water-dispersible polymer; cations or a hexafluoro complex of cations of titanium, zirconium, hafnium, silicon, aluminum and boron; and at least one inorganic particle having an average particle diameter of 0.005 to 0.2 ?m as measured with a scanning electron microscope by contacting a metallic surface with the composition and forming a film by drying, the film having a thickness of 0.01 to 10 ?m.

Abstract: It is an object of the present invention to provide a pretreatment method for coating, which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum. A pretreatment method for coating comprising treating a substance to be treated with a chemical conversion coating agent to form a chemical conversion coat, wherein the chemical conversion coating agent comprises at least one kind selected from the group consisting of zirconium, titanium and hafnium and fluorine, the chemical conversion coat has a fluorine concentration of 10% or less on the atom ratio basis, and at least a part of the substance to be treated is an iron material.

Abstract: It is an object of the invention to provide a chemical conversion treating agent which contains no chromium and can give good effect of chemical conversion treatment equal to or better than that of zinc phosphate treatment to all metals such as iron, zinc, aluminum and the like. The present invention provides a chemical conversion treating agent comprising zirconium, fluorine and a water-soluble epoxy compound, wherein the content of the zirconium in the chemical conversion treating agent is 20 to 10000 ppm on the metal equivalent basis, the water-soluble epoxy compound has a fundamental skeleton of bisphenol F, has an amino group and an isocyanate group, has a number-average molecular weight of 400 to 1000, and the content of the water-soluble epoxy compound in the chemical conversion treating agent is 100 to 2000 ppm in terms of the concentration of solid matters.

Abstract: It is an object of the present invention to provide a pretreatment method for coating the surface of metal for vehicle chassis, in which a phosphorus element is not essential, the formation of sludge is extremely small, waste water treatment is facilitated, and a chemical conversion coat having adequate adhesion and adequate corrosion resistance can be formed. A pretreatment method for coating a surface of metal for vehicle chassis comprising treating the surface of metal for vehicle chassis with a chemical conversion treating solution to form a chemical conversion coat, wherein said chemical conversion treating solution comprises zirconium in an amount of 50 to 500 ppm on the metal element equivalent basis, and at least one silane compound selected from the group consisting of ?-aminopropyltriethoxysilane, hydrolysates of ?-aminopropyltriethoxysilane, ?-aminopropyltrimethoxysilane and hydrolysates of ?-aminopropyltrimethoxysilane; and has a pH of 2 to 6.

Abstract: A method for coating a metal strip or strip sections produced from the strip in a subsequent step are first coated with at least one anticorrosive coating and then with at least one coating of a paint-like polymer-containing coating. The coated strip is divided up in strip sections and the coated strip sections are then formed, joined and/or coated with at least one further paint-like coating and/or coat of paint. The paint-like coating is an aqueous dispersion that contains, in addition to water, at least one UV-crosslinkable water-soluble and/or water-dispersible resin, at least one wax as the forming additive, at least one photoinitiator, and at least one corrosion inhibitor. The coating is dried and, In another embodiment, the strip is first coated with at least one paint-like polymer containing coating without prior application of an anticorrosive coating.

Abstract: The invention relates to a method for coating a metal surface with an aqueous composition, characterized in that the composition contains, in addition to water: a) at least one organic film former that contains at least one water-soluble or water-dispersible polymer with an acid number ranging from 5 to 200, b) at least one particulate inorganic compound with an average particle diameter measured by a scanning electron microscope in the range of from 0.005 to 0.3?, c) at least one slip additive and/or at least one corrosion inhibitor, d) optionally at least one organic solvent, e) optionally at least one silane and/or siloxane, f) optionally at least one cross-linking agent, and g) optionally at least one chromium (VI) compound. The clean metal surface is contacted with the aqueous composition and a particle-containing film is formed on the metal surface which is then dried. The dried and optionally also cured film has a layer thickness ranging from 0.01 to 10 ?m.

Abstract: It is an object of the present invention to provide a chemical conversion coating agent which places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc and aluminum.

Abstract: It is an object of the present invention to provide a chemical conversion coating agent containing no chromium and capable of applying good chemical conversion treatment which is equal to or more than chemical conversion treatment by zinc phosphate to all metals such as iron, zinc and aluminum.

Abstract: It is an object of the present invention to provide a pretreatment method for coating, which does not limit a coating method, places a less burden on the environment and can apply good chemical conversion treatment to all metals such as iron, zinc, aluminum and so on.