Disclosed is a method of treating a substrate, comprising contacting at least a portion of the substrate surface with a first composition comprising a lanthanide source and an oxidizing agent. A substrate obtainable by the methods also is disclosed.

A process for anticorrosion treatment of a metallic surface, including bringing the surface into successive contact with the an alkaline or acidic cleaner composition, a first rinsing composition, optionally a second rinsing composition, an acidic conversion composition, optionally a third rinsing composition, and a composition including a (meth)acrylate- and/or epoxide-based cathodic electrophoretic coating. At least one of the compositions includes at least one compound of the formula R.sup.1O—(CH.sub.2).sub.x—Z—(CH.sub.2).sub.y—OR.sup.2. R.sup.1 and R.sup.2 are each, independently of one another, H or an HO—(CH.sub.2).sub.w— group with w≥2. X and y are each, independently of one another, from 1 to 4 and Z is an S atom or a C—C triple bond. An aqueous composition for reducing corrosive removal of material in anticorrosion treatment of metallic surfaces is disclosed.

A process for anticorrosion treatment of a metallic surface, including bringing the surface into successive contact with the an alkaline or acidic cleaner composition, a first rinsing composition, optionally a second rinsing composition, an acidic conversion composition, optionally a third rinsing composition, and a composition including a (meth)acrylate- and/or epoxide-based cathodic electrophoretic coating. At least one of the compositions includes at least one compound of the formula R.sup.1O—(CH.sub.2).sub.x—Z—(CH.sub.2).sub.y—OR.sup.2. R.sup.1 and R.sup.2 are each, independently of one another, H or an HO—(CH.sub.2).sub.w— group with w≥2. X and y are each, independently of one another, from 1 to 4 and Z is an S atom or a C—C triple bond. An aqueous composition for reducing corrosive removal of material in anticorrosion treatment of metallic surfaces is disclosed.

The present invention provides a biodegradable formulation and its use as a surfaces restoring agent, said formulation allows a substantial savings when restoring the existing paint on different surfaces, since it mainly cleans and restores the surface or paint contaminated by the environment, damaged due to the sun and the processes of the different industries, in addition to being friendly to the environment, making it a useful technology in any industrial branch that involves cleaning and restoring large areas. It is worth noting that the modifications to the original formula were made to optimize the results in the different applications and improve its biodegradability.

The present invention provides a biodegradable formulation and its use as a surfaces restoring agent, said formulation allows a substantial savings when restoring the existing paint on different surfaces, since it mainly cleans and restores the surface or paint contaminated by the environment, damaged due to the sun and the processes of the different industries, in addition to being friendly to the environment, making it a useful technology in any industrial branch that involves cleaning and restoring large areas. It is worth noting that the modifications to the original formula were made to optimize the results in the different applications and improve its biodegradability.

A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

A coating composition includes a (A) binder component and a (B) pigment component. The (A) binder component includes (A1) polyvinyl butyrate, (A2) a particular film forming resin, (A3) an acid, (A4) an optional functionalized tri-alkoxy silane, and (A5) an optional polymeric phosphate ester. The (B) pigment component includes (B1) a calcium ion-exchanged silica, (B2) a corrosion inhibiting pigment, and (B3), a polyalkylene oxide phosphate. The coating composition is formed by combining the aforementioned components. In a method, the coating composition is applied to a substrate.

An aqueous shop primer comprising: (A) 25 to 80 wt % of a polysilane sol; (B) 0.5 to 15 wt % of an accelerator selected from at least one of zinc phosphate, zinc oxide, calcium strontium zinc phosphosilicate, zirconium hydrogen phosphate, iron phosphide, calcium zirconate, barium zirconate, zirconium nitride, zinc titanate and iron(II) titanate; (C) 15 to 40 wt % of at least one anticorrosive pigment; (D) 0.5 to 10 wt % microspheres.

An aqueous shop primer comprising: (A) 25 to 80 wt % of a polysilane sol; (B) 0.5 to 15 wt % of an accelerator selected from at least one of zinc phosphate, zinc oxide, calcium strontium zinc phosphosilicate, zirconium hydrogen phosphate, iron phosphide, calcium zirconate, barium zirconate, zirconium nitride, zinc titanate and iron(II) titanate; (C) 15 to 40 wt % of at least one anticorrosive pigment; (D) 0.5 to 10 wt % microspheres.