Chemical conversion agent
The purpose of the present invention is to provide a chemical conversion agent which forms a chemical conversion coating film in the surface or on the surface of a metal material, and which has excellent appearance after chemical conversion and excellent corrosion resistance that is evaluated by a V...
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| creator | FUKAURA, HIROYUKI FUKUSHI, HIDEKAZU KOZAKI, TAKUMI |
| description | The purpose of the present invention is to provide a chemical conversion agent which forms a chemical conversion coating film in the surface or on the surface of a metal material, and which has excellent appearance after chemical conversion and excellent corrosion resistance that is evaluated by a VDA 621-415 method or an exposure test after coating, and is able to be used in a wide temperature range. The purpose is achieved by a chemical conversion agent which forms a chemical conversion coating film in the surface or on the surface of a metal material, and which contains a supply source of fluorine ions, a supply source A of ions containing zirconium, a supply source B of ions containing aluminum, and a water-soluble or water-dispersible polymer C containing 90% by mole or more of a structural unit represented by formula (i) or a salt C of the polymer, while satisfying formula (1). Formula (1): (Ac + Bc) * (pH - 3)X ≥ 0.38 In the formula, X = 7.2 * 12(-1.6 * (Ac + Bc)). |
| format | Patent |
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The purpose is achieved by a chemical conversion agent which forms a chemical conversion coating film in the surface or on the surface of a metal material, and which contains a supply source of fluorine ions, a supply source A of ions containing zirconium, a supply source B of ions containing aluminum, and a water-soluble or water-dispersible polymer C containing 90% by mole or more of a structural unit represented by formula (i) or a salt C of the polymer, while satisfying formula (1). 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The purpose is achieved by a chemical conversion agent which forms a chemical conversion coating film in the surface or on the surface of a metal material, and which contains a supply source of fluorine ions, a supply source A of ions containing zirconium, a supply source B of ions containing aluminum, and a water-soluble or water-dispersible polymer C containing 90% by mole or more of a structural unit represented by formula (i) or a salt C of the polymer, while satisfying formula (1). Formula (1): (Ac + Bc) * (pH - 3)X ≥ 0.38 In the formula, X = 7.2 * 12(-1.6 * (Ac + Bc)).</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
| recordid | cdi_epo_espacenet_TW202432890A |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION |
| title | Chemical conversion agent |
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