Abstract: A surface conditioning composition is provided in which a titanium phosphate compound can be stored in the state of a dispersion liquid for a long period of time while being stably present in the dispersion liquid, with favorable stability also in the bath, and with the composition being capable of forming a conversion coating film in a sufficient amount of the film even in the case of application to conversion resistant metal materials such as high-tensile steel sheets.

Abstract: A composition for surface conditioning includes bivalent or trivalent metal phosphate particles having a pH of 3 to 12, with D50 of the particles being 3 ?m or less and including an amine compound having a MW of 1000 or less, plus at least one metal alkoxide in a content of from 0.01 to 1000 parts by weight per 100 parts by weight of the solid content of the metal phosphate particles.

Abstract: A surface-conditioning composition can form a denser phosphate coating film having more satisfactory coating weight on the surface of a metal material compared to a conventional one and, therefore, can reduce the electrolytic corrosion of a metal material during a chemical conversion treatment, form a chemical conversion coating film having a satisfactory coating weight even when applied to a hardly convertible metal material (e.g., an aluminum metal material, a high tensile strength steel plate), improve the productivity rate of the chemical conversion treatment, resulting in the reduction of the time required for the chemical conversion treatment, and enables a metal phosphate particle to be dispersed in a surface-conditioning solution highly stably. This composition includes a particle of a phosphate of a bivalent or trivalent metal and has a pH value ranging from 3 to 12. The particle has a D50 value of 3 ?m or less.

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: A surface-conditioning composition can form a denser phosphate coating film having more satisfactory coating weight on the surface of a metal material compared to a conventional one and, therefore, can reduce the electrolytic corrosion of a metal material during a chemical conversion treatment, form a chemical conversion coating film having a satisfactory coating weight even when applied to a hardly convertible metal material (e.g., an aluminum metal material, a high tensile strength steel plate), improve the productivity rate of the chemical conversion treatment, resulting in the reduction of the time required for the chemical conversion treatment, and enables a metal phosphate particle to be dispersed in a surface-conditioning solution highly stably. This composition includes a particle of a phosphate of a bivalent or trivalent metal and has a pH value ranging from 3 to 12. The particle has a D50 value of 3 ?m or less.

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 surface-conditioning composition which has a higher chemical conversion treatment capability (can form a denser phosphate coating film on the surface of a metal material) compared to a conventional one, can reduce the electrolytic corrosion of an aluminum-type metal material during a chemical conversion treatment, form a chemical conversion coating film having a satisfactory coating weight even when applied to a hardly convertible metal material (e.g., an aluminum alloy, a high tensile strength steel plate), improve the productivity rate of the chemical conversion treatment, resulting in the reduction of the time required for the chemical conversion treatment, and enables stable dispersion in a surface-conditioning solution for a long period of time. This composition includes a particle of a phosphate of a bivalent or trivalent metal and has a pH value ranging from 3 to 12. The particle has a D50 value of 3 ?m or less.

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 surface conditioning composition is provided in which a titanium phosphate compound can be stored in the state of a dispersion liquid for a long period of time while being stably present in the dispersion liquid, with favorable stability also in the bath, and with the composition being capable of forming a conversion coating film in a sufficient amount of the film even in the case of application to conversion resistant metal materials such as high-tensile steel sheets. A conversion coating film in a sufficient amount of the coating film can be formed with favorable dispersibility by blending an amine compound having a specified structure, an aromatic organic acid, a phenolic compound, a phenolic resin and the like in a surface conditioning composition, which contains the titanium phosphate compound and has a specified pH.

Abstract: A composition for surface conditioning is provided which is capable of improving conversion capability due to improved surface conditioning function, for example, forming a dense metal phosphate coating film on a metal material surface, and forming a conversion coating film in a sufficient amount also in the case of applications to a contact part of different kinds of metals upon simultaneously carrying out a conversion treatment, or on a conversion resistant metal material such as a high-tensile steel plate, and also capable of improving productivity, shortening the time required for the conversion treatment step or the like owing to improvement of the conversion capability. A composition for surface conditioning including bivalent or trivalent metal phosphate particles and having a pH of 3 to 12, wherein the D50 of the particles is 3 ?m or less, and that the composition includes an amine compound having a MW of 1000 or less.

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 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: A treatment agent for hydrophilicity preferable for aluminum materials used for heat exchanger parts and air filter parts of air cleaner which can maintain the deodorizing property and hydrohilicity even after a long-time use, and a method of preparing said treatment agent. A treatment agent for hydrophilicity according to this invention comprising silica particulates and polymer of vinyl alcohol series in the weight ratio in the range 30:70˜70:30, amounting to 0.2˜25 weight percent in total of both relative to the entire treatment agent, in which said silica particulates are coated with said polymer of vinyl alcohol series, and dispersed in aqueous medium as coated particles having the average particle diameter 5˜1000 nm.

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.

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, and a surface-treated metal obtained using the same.

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.

Abstract: A treatment method for hydrophilicity for a heat exchanger which can maintain the deodorizing property and hydrohilicity even after a long-time use, and a heat exchanger thus treated for hydrophilicity by said method are provided.

Abstract: The present invention relates to a pickling agent for the chemical conversion coating of a heat exchanger which is capable of cleaning the complicated structure comprising fins and tubes of a heat exchanger in preparation for the successful formation of a chemical conversion film, a method of pickling a heat exchanger, a method of treating a heat exchanger comprising said pickling method, and a heat exchanger produced by using said treating method. The present invention provides pickling agent for the chemical conversion coating of a heat exchanger which comprises an acidic aqueous solution containing nitric acid and/or sulfuric acid and at least one metal and/or metal oxoanion salt derived from any metal selected from the group consisting of iron, nickel, cobalt, molybdenum and cerium.