An anticorrosive coating includes a first curable liquid layer to the associated substrate, the first layer having a thickness of at least about 100 micrometers, wherein the first layer includes at least one polymer or at least one monomer, quasi-one-dimensional particles or quasi-two-dimensional particles, sacrificial metal particles, and a solvent, wherein a percolation threshold of the particles is not reached in the presence of the solvent, wherein the percolation threshold of the particles is reached when between about 1% and about 20% of the solvent evaporates, applying a second curable liquid layer having a thickness of at least 100 micrometers on the top of the first layer after the percolation threshold of the particles is reached and viscosity of the first layer increases more than 50%, and allowing the first layer and the second layer to cure simultaneously.

An electrical steel sheet with an insulating film having excellent chromium elution resistance, even in the case where the insulating film is baked by utilizing rapid heating, which improves productivity, and a method for manufacturing the steel sheet. The insulating film contains Fe, Cr, an organic resin, and an organic reducing agent on at least one surface of an electrical steel sheet. A ratio of the Fe content to the Cr content (Fe/Cr) is 0.010 to 0.6 in terms of molar ratio in the insulating film.

A method of producing a gas barrier laminate of the present disclosure includes a step of forming a coating film on a surface of a base film or a laminate including the base film, the coating film containing zinc ions, at least one of metal alkoxide and a hydrolysate thereof, and an aqueous polymer, and a step of drying the coating film to form a gas barrier layer on the surface of the base film or the laminate including the base film. A gas barrier laminate of the present disclosure includes a base film or a laminate including the base film, and a gas barrier layer provided on a surface of the base film or the laminate including the base film. In the gas barrier laminate, the gas barrier layer contains zinc dispersed in the gas barrier layer and an organic-inorganic composite.

The present invention relates to a method comprising the steps of: a) contacting an acrylate monomer, a carboxylic acid monomer, and a chain transfer agent under free radical polymerization conditions to form a solution of a polymer having an M.sub.n in the range of from 5,000 to 50,000 Daltons; b) contacting the solution with a base and an ethylenically unsaturated glycidyl functionalized monomer to form a solution of an ethylenically unsaturated acrylate polymer; c) contacting the solution of the ethylenically unsaturated functionalized acrylate polymer with water to form an aqueous dispersion of ethylenically unsaturated functionalized acrylate polymers; and d) removing the organic solvent. The method of the present invention provides a composition suitable for use as a UV curable coating that achieves an excellent balance of hardness, flexibility, and warmth with less reliance on costly MFAs.

A method of providing an anticorrosive coating includes applying a first curable liquid layer to the associated substrate, the first layer having a thickness of at least about 100 micrometers, wherein the first layer includes at least one polymer or at least one monomer, quasi-one-dimensional particles or quasi-two-dimensional particles, sacrificial metal particles, and a solvent, wherein a percolation threshold of the particles is not reached in the presence of the solvent, wherein the percolation threshold of the particles is reached when between about 1% and about 20% of the solvent evaporates, applying a second curable liquid layer having a thickness of at least 100 micrometers on the top of the first layer after the percolation threshold of the particles is reached and viscosity of the first layer increases more than 50%, and allowing the first layer and the second layer to cure simultaneously.

This invention provides a method for forming a multilayer coating film that is capable of forming a multilayer coating film that has excellent blackness, high reflectance of an infrared laser, and excellent coating film performance. The method for forming a multilayer coating film includes forming a first colored coating film containing a titanium oxide pigment and in which the diffuse reflectance at a wavelength of 905 nm or diffuse reflectance at a wavelength of 1550 nm, or both, is 40% or more; forming a second colored coating film containing a carbon black pigment (A) and one or more pigments (B), which are a perylene black pigment (B1) or two or more pigments (B2) selected from the group consisting of blue pigments, red pigments, yellow pigments, and green pigments, or both (B1) and (B2); and forming a clear coating film; wherein the multilayer coating film has a lightness L*(45°) of 4 or less and a chroma C*(45°) of 2 or less, and wherein the diffuse reflectance at a wavelength of 905 nm or the diffuse reflectance at a wavelength of 1550 nm, or both, is 10% or more.

An anticorrosive coating includes a first curable liquid layer to the associated substrate, the first layer having a thickness of at least about 100 micrometers, wherein the first layer includes at least one polymer or at least one monomer, quasi-one-dimensional particles or quasi-two-dimensional particles, sacrificial metal particles, and a solvent, wherein a percolation threshold of the particles is not reached in the presence of the solvent, wherein the percolation threshold of the particles is reached when between about 1% and about 20% of the solvent evaporates, applying a second curable liquid layer having a thickness of at least 100 micrometers on the top of the first layer after the percolation threshold of the particles is reached and viscosity of the first layer increases more than 50%, and allowing the first layer and the second layer to cure simultaneously.

An anticorrosive coating includes a first curable liquid layer to the associated substrate, the first layer having a thickness of at least about 100 micrometers, wherein the first layer includes at least one polymer or at least one monomer, quasi-one-dimensional particles or quasi-two-dimensional particles, sacrificial metal particles, and a solvent, wherein a percolation threshold of the particles is not reached in the presence of the solvent, wherein the percolation threshold of the particles is reached when between about 1% and about 20% of the solvent evaporates, applying a second curable liquid layer having a thickness of at least 100 micrometers on the top of the first layer after the percolation threshold of the particles is reached and viscosity of the first layer increases more than 50%, and allowing the first layer and the second layer to cure simultaneously.

An anticorrosive coating includes a first curable liquid layer to the associated substrate, the first layer having a thickness of at least about 100 micrometers, wherein the first layer includes at least one polymer or at least one monomer, quasi-one-dimensional particles or quasi-two-dimensional particles, sacrificial metal particles, and a solvent, wherein a percolation threshold of the particles is not reached in the presence of the solvent, wherein the percolation threshold of the particles is reached when between about 1% and about 20% of the solvent evaporates, applying a second curable liquid layer having a thickness of at least 100 micrometers on the top of the first layer after the percolation threshold of the particles is reached and viscosity of the first layer increases more than 50%, and allowing the first layer and the second layer to cure simultaneously.

A method for manufacturing an ultrasound generator with high laser-induced damage threshold is disclosed. The method includes forming an uncured prepolymer polydimethylsiloxane (PDMS) film on a substrate; spraying a solution containing light-absorbing nano-particles onto a surface of the uncured PDMS film, and then permeating the light-absorbing nano-particles into the uncured PDMS film; and curing the uncured PDMS film containing the light-absorbing nano-particles spatially distributed therein to form a composite film of nano-particles and PDMS, wherein the light-absorbing nano-particles permeated and diffused into the uncured PDMS film are dispersed such that a mean distance between the light-absorbing nano-particles in the PDMS film is substantially equal to or larger than a thermal diffusion length during a temporal width of an irradiation laser pulse, thus alleviating an exceedingly high thermal load, which can cause film damage or ablation, caused by nano-particles agglomerated or densely packed with a particle-to-particle mean distance smaller than the thermal diffusion length, ultimately resulting in the increase of laser-induced damage threshold and the maximum-available ultrasound output from the photoacoustic ultrasound generator.