The instant invention concerns the use of at least one polymer P obtained by radical copolymerization of a mixture of (i) acrylic acid; (ii) methacrylic acid; and (iii) at least one monomer of formula: for treating a metallic surface intended to be coated by a paint, a varnish or an adhesive, for example intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.

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The instant invention concerns the use of at least one polymer P obtained by radical copolymerization of a mixture of (i) acrylic acid; (ii) methacrylic acid; and (iii) at least one monomer of formula: for treating a metallic surface intended to be coated by a paint, a varnish or an adhesive, for example intended to be adhesive-bonded to another surface, in order to impart a resistance to the adhesive failure to the resulting bonding.

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A composition for application to a substrate comprising a carrier, a permanganate ion source, and a corrosion inhibitor comprising a rare earth ion, an alkali metal ion, an alkaline earth metal ion, and/or a transition metal ion is disclosed. A substrate or article including the composition for application to a substrate, and a method of treating a substrate comprising applying the composition to a substrate to form a permanganate treated surface of the substrate, and applying a lithium containing composition on the permanganate treated surface are also disclosed.

A composition for application to a substrate comprising a carrier, a permanganate ion source, and a corrosion inhibitor comprising a rare earth ion, an alkali metal ion, an alkaline earth metal ion, and/or a transition metal ion is disclosed. A substrate or article including the composition for application to a substrate, and a method of treating a substrate comprising applying the composition to a substrate to form a permanganate treated surface of the substrate, and applying a lithium containing composition on the permanganate treated surface are also disclosed.

A pipe is manufactured through injecting a chloride ion-containing aqueous solution into a copper pipe to fill the copper pipe, thereby forming a copper oxide film on an inner surface of the copper pipe.

A pipe is manufactured through injecting a chloride ion-containing aqueous solution into a copper pipe to fill the copper pipe, thereby forming a copper oxide film on an inner surface of the copper pipe.

The purpose of the present invention is to provide a water-based treatment solution which makes it possible to form a chemical-conversion-treated coating film having further improved corrosion resistance. The present invention relates to a water-based treatment solution for a chemical conversion treatment of a steel sheet or a plated steel sheet. The water-based treatment solution contains an organic resin including a fluororesin, a Group-4A metal compound, and at least one binding promoter selected from the group consisting of dimethyl adipate, diethyl adipate, di(iso)propyl adipate, di(iso)butyl adipate, dimethyl phthalate, diethyl phthalate, di(iso)propyl phthalate and di(iso)butyl phthalate.

The purpose of the present invention is to provide a water-based treatment solution which makes it possible to form a chemical-conversion-treated coating film having further improved corrosion resistance. The present invention relates to a water-based treatment solution for a chemical conversion treatment of a steel sheet or a plated steel sheet. The water-based treatment solution contains an organic resin including a fluororesin, a Group-4A metal compound, and at least one binding promoter selected from the group consisting of dimethyl adipate, diethyl adipate, di(iso)propyl adipate, di(iso)butyl adipate, dimethyl phthalate, diethyl phthalate, di(iso)propyl phthalate and di(iso)butyl phthalate.

A method is provided for passivating an aluminum surface. According to the method, the aluminum surface is provided with a flux. A passivation solution is subsequently applied to the aluminum surface, such that a passivation layer is created by reaction of the passivation solution with the aluminum surface, which is provided with the flux.

An aluminum-based metal-resin composite structure (106) includes an aluminum-based metal member (103) in which a dendritic layer (103-2) is formed on at least a part of a surface, and a resin member (105) bonded to the aluminum-based metal member (103) via the dendritic layer (103-2) and formed of a thermoplastic resin composition, in which, when analysis is conducted with a Fourier transform infrared spectrophotometer (FTIR) on a surface (104) of a bonding portion with at least the resin member (105) in the aluminum-based metal member (103) and an absorbance of an absorption peak observed at 3400 cm.sup.−1 is defined as A.sub.1 and an absorbance at 3400 cm.sup.−1 of a straight line connecting an absorbance at 3800 cm.sup.−1 and an absorbance at 2500 cm.sup.−1 is defined as A.sub.0, an absorbance difference (A.sub.1−A.sub.0) is in a range of 0.03 or less.