Abstract:
Anti-corrosive conversion coating compositions are disclosed. The anti-corrosive conversion coating compositions include a biopolymer and a rare earth element compound. Implementations of the anti-corrosive conversion coating composition can include where the biopolymer includes chitosan, starch, inulin, dextran, pullulan, or a combination thereof. The rare earth element compound may include one or more of the lanthanide series of elements, scandium, yttrium, or a combination thereof. The rare earth element compound may include a hydroxide of a rare earth element, an oxide of a rare earth element, or a combination thereof. Coated articles and methods for applying the anti-corrosive conversion coating compositions are also disclosed.
Abstract:
An object of the present invention is to provide a cured product which is suitable as a material for a layer of low refractive index in a multilayer diffractive optical element, can exhibit a desired chromatic aberration reducing effect over a near-infrared wavelength region to a shortwave infrared wavelength region in a case of being used in the multilayer diffractive optical element, and can exhibit high transmittance in this wavelength range; a curable resin composition suitable for obtaining this cured product; and a diffractive optical element and a multilayer diffractive optical element including this cured product. Provided are a curable resin composition which includes oxide nanoparticles including indium and cerium, a monofunctional or higher functional (meth)acrylate compound, and a dispersant; a cured product formed of the curable resin composition; a diffractive optical element and a multilayer diffractive optical element; and oxide nanoparticles used in this composition.
Abstract:
A nanomaterial-biomass fiber composite and preparation method thereof. The biomass fibers are cut or sliced, and then dried. The dried biomass fibers are mixed with a nanomaterial and conveyed to the preheating cylinder of a defibrator for cooking treatment. The cooked mixture is pushed between the grinding discs of the defibrator for hot grinding treatment. The resulting material is then hot pressed to obtain the nanomaterial-biomass fiber composite material. The preparation method benefits from simple operation, low cost, low energy consumption, suitability for industrialized production, and wide application prospect in the field of production of binderless fiberboard.
Abstract:
Provided is a film for a transparent screen which can clearly display merchandise information, advertisement, or the like on a transparent partition or the like by projection without compromising the transmission visibility. A film for a transparent screen according to the present invention includes: a resin layer; and inorganic particles at least a portion of which is contained in an aggregated state in the resin layer, wherein primary particles of the inorganic particles have a median diameter of 0.1 to 50 nm and a maximum particle size of 10 to 500 nm, and the content of the inorganic particles is 0.015 to 1.2% by mass with respect to the resin.
Abstract:
The invention is directed to a detectable and stable composition comprising an organofunctional silane and/or hydrolyzate and/or partial or complete condensate thereof, a colloidal metal oxide, a water soluble organic dye having a positive charge and a counterion derived from a carboxylic acid of from 1 to 6 carbon atoms, and water. The invention is also directed to a method for determining the uniformity and film thickness of a detectable composition applied to a substrate comprising applying to the surface of the substrate the detectable composition and measuring an optical property of the applied coating, the resulting measurement being related to the uniformity of the applied composition.
Abstract:
A corrosion inhibiting coating for metal objects as well as a method for applying a coating is described. Said coating comprising at least one cerium oxide and at least one polymer. The polymer comprises at least one cathecholic component covalently bound thereto, and the at least one polymer displays a net positive charge at a pH of 7. The material inventive coating is environmental friendly and does not display serious health risks. Further an excellent corrosion inhibition is obtained for metals, even for carbon steel. The corrosion the properties of a coated surface is comparable with those of stainless steel.
Abstract:
The invention provides a chemical-mechanical polishing composition comprising, consisting essentially of, or consisting of (a) about 0.01 wt. % to about 1 wt. % of wet-process ceria, (b) about 10 ppm to about 200 ppm of a cationic polymer comprising quaternary amino groups, (c) about 10 ppm to about 2000 ppm of a non-fluorinated nonionic surfactant, (d) an amino acid, and (e) water, wherein the polishing composition has a pH of about 3 to about 8. The invention further provides a method of polishing a substrate with the polishing composition.
Abstract:
The present invention relates to a stabilized monomer dispersion containing inorganic oxide nanoparticles with high refractive index in which the refractive index of the inorganic oxide nanoparticles is greater than 1.65 and the average particle size of the high refractive inorganic oxide nanoparticles ranges from 1 to 100 nm and its content is in a range of from 1.0% by weight to 10.0% by weight based on the total weight of the monomer dispersion. The present invention also relates to a process for preparing the stabilized monomer dispersion containing high refractive inorganic oxide nanoparticles.
Abstract:
The invention relates to a suspension of cerium oxide particles, of which the particles (secondary particles) have an average size of at most 200 nm, these secondary particles consisting of primary particles whose average size measured by TEM is of at most 150 nm with a standard deviation of at most 30% of the value of said average size, and for which the ratio of the average size measured by TEM to the average size measured by BET is at least 1.5. This suspension is prepared from a solution of a cerium III salt, comprising a colloidal dispersion of cerium IV, which is brought into contact, in the presence of nitrate ions and under an inert atmosphere, with a base; the medium obtained is subjected to a thermal treatment under an inert atmosphere and then acidified and washed. The suspension can be used for polishing.
Abstract:
A silane coating composition containing a silicon-based copolymer, a method for treating the surfaces of a metal such as steel, zinc-coated steels, or aluminum, to provide for the formation of a uniform conversion and/or passivation coating which increases the corrosion resistance of bare or painted metal and/or the adhesion properties of the metal, along with a metal having a conversion and/or passivation coating applied thereto are disclosed. Methods of the invention include contacting the requisite metal surface with an aqueous solution of a silane compound and a silicon-based polyether copolymer.