The disclosure provides a metal protective layer, sequentially comprising an organic powder coating, a high-gloss organic coating, a ductile periodic variable alloy protective film and a transparent powder coating, wherein the base powder layer is an epoxy resin or pure polyester powder coating; the high-gloss organic coating is an epoxy resin powder coating, a polyester powder coating, or a polybutadiene organic coating; the ductile periodic variable alloy protective film is formed by direct current magnetron sputtering with two targets in a high vacuum environment, and the material of the targets is composed of a Ni—Cr alloy layer and pure Cr; and the transparent powder layer is an acrylic powder coating or a polyester transparent powder coating.

The present application relates to a method for coating boron, to a boron-containing resin solution, to a boron-coated thermal neutron converter obtained by the method for coating boron, and further to a thermal neutron detector comprising the boron-coated thermal neutron converter. The method for coating boron as provided in the application is applicable for various substrates and has small restrictions on substrate shapes, particularly for substrates having complex surface structures and high aspect ratios.

A corrosion-resistant magnesium alloy with a multi-level protective coating, and to a preparation process thereof. The magnesium alloy with a multi-level protective coating comprises a magnesium alloy substrate and a multi-level protective coating. The multi-level protective coating comprises a micro-arc oxidation layer of magnesium alloy provided on the surface of the magnesium alloy substrate, an epoxy primer layer provided on the surface of the micro-arc oxidation layer of magnesium alloy, and a polyurethane topcoat layer provided on the surface of the epoxy primer layer. The magnesium alloy with a multi-level protective coating effectively integrates the excellent adhesion of the micro-arc oxidation layer and the excellent anti-corrosion effect of the organic coating. The process for the preparation of the magnesium alloy with a multi-level protective coating is cost-effective, simple, suitable for large-area and large-scale magnesium alloy treatment, and suitable for the development for large-area scale industrialization. The magnesium alloy with a multi-level protective coating is characterized by a good adhesion and an excellent salt spray resistance, exhibits a period of neutral salt spray resistance test of greater than 1,000 hours, and can be applied in the automotive industry and the aviation industry.

A method for producing an anti-fouling coating film includes: a step (1) of applying a fine uneven layer forming agent containing at least one type of polysilazane as at least one type of silica raw material on at least one surface of a base substrate, the aforementioned at least one surface comprising at least one type of resin, to form a fine uneven layer containing silica and polysilazane; a step (2) of applying a modification layer forming agent containing a reactive organic compound and polysiloxane or perfluoropolyether on a surface of the fine uneven layer obtained in the step (1), to form a modification layer containing polysiloxane or perfluoropolyether, and a step (3) of applying lubricating oil containing silicone oil or fluorinated oil on a surface of the modification layer obtained in the step (2), to form a lubricating oil layer.

The present invention relates to multicoat paint systems comprising basecoats and clearcoats with high solids fractions that each comprise at least one sulfonic acid compound of formula (I) or formula (II). The invention further relates to a method of producing these multicoat paint systems and to their use, and also to substrates coated with the multicoat paint system. The invention relates, furthermore, to the use of the sulfonic acid compounds of formula (I) and formula (II) in basecoats and clearcoats with high solids fractions.

Disclosed is a system for treating a substrate surface. The system includes a conditioner composition and a first pretreatment composition. The conditioner composition comprises a hydroxide source and the first pretreatment composition comprises a magnesium element, a halide element, and an oxidizing agent. Methods of treating a substrate surface using the conditioner composition and the first pretreatment composition also are disclosed. Also disclosed are substrates treated with the system and method.

A magnesium alloy layered composite for an electronic device can include a magnesium alloy substrate, a passivation layer positioned on the magnesium alloy substrate, and a sol-gel layer positioned on the passivation layer. The passivation layer can include a molybdate, a vanadate, a phosphate, a chromate, a stannate, or a manganese salt. The sol-gel layer can include a silicate, a silane, a siloxane, or a metal C1-C5 alkoxide.

The invention is directed to methods for making an EC material comprising providing a substrate, applying at least one metal linker to the substrate, applying at least one metal-coordinated organic complex to form a layer, washing the layer, drying the layer, and repeating the applying steps to obtain a multiple layer EC material. The invention is further directed to EC materials made by the methods of this invention.

A surface with selective wetting properties is described.

Disclosed is a polyester polymer prepared from a reaction mixture comprising a polyacid component and a polyol component that comprises lignin. Residues of lignin are incorporated into the backbone of the polyester polymer. Coatings comprising the same and substrates coated at least in part with such coatings are also disclosed.