摘要:
A surface modified substrate includes a substrate having a surface, a layer of nanoscale inorganic oxide particles disposed on at least a portion of the surface of the substrate, said layer of nanoscale inorganic oxide particles comprising sites bearing an electric charge of a first polarity, and a monolayer of a polymer disposed on a least a portion of the layer of nanoscale inorganic oxide particles, said monolayer of polymer comprising sites bearing an electric charge of a second polarity, wherein the second polarity is the opposite of the first polarity.
摘要:
A method includes applying a first powder to an aluminum article and heating the first powder to form a first layer on the aluminum article providing mechanical strength, corrosion durability and bonding potential. The method also includes applying a second powder to the aluminum article and heating the second powder to form a second layer on the aluminum article protecting the aluminum article from ultraviolet radiation. A coated article includes an aluminum substrate, an epoxy layer and a topcoat layer. The epoxy layer promotes adhesion, enhances corrosion durability and provides mechanical strength, and is formed by applying a first powder containing an epoxy to the aluminum substrate and curing the first powder. The topcoat layer provides resistance to ultraviolet radiation and environmental contaminants, and is formed by applying a second powder to the aluminum substrate and curing the second powder.
摘要:
Methods and associated structures of forming microelectronic devices are described. Those methods may include forming a first layer of functionalized nanaparticles on a substrate by immersing the substrate in at least one of a solvent and a polymer matrix, wherein at least one of the solvent and the polymer matrix comprises a plurality of functionalized nanoparticles; and forming a second layer of functionalized nanoparticles on the first layer of functionalized particles, wherein there is a gradient in a property between the first layer and the second layer.
摘要:
Method of coating pipe having a raised weld bead. Curable resin polymer is applied to the pipe and allowed to bond to form a cured or partially cured polymer layer on the pipe. Powder form adhesive composition is applied on the polymer layer while hot, with fusion into a film bonding to the polymer. Powder form polyolefin is applied to the adhesive while hot with fusion into a film bonding to the adhesive to form a powder-based coating. Following forming of the powder-based coating, the pipe is cooled from the inside. An outer polyolefin covering is bonded to the powder-based coating and the pipe cooled to ambient temperature. This procedure can avoid voids, cavities or pinholes forming in the coating adjacent the weld bead.
摘要:
The present invention provides an aqueous intermediate coating composition comprising: (A) a resin containing hydroxyl and carboxyl groups with a hydroxyl value of 100 to 200 mg KOH/g and an acid value of 20 to 50 mg KOH/g; (B) at least one curing agent selected from the group consisting of melamine resins and blocked polyisocyanate compounds; and (C) flat pigment particles; the molecular weight distribution of a curable resin component comprising component (A) and component (B) including from 30 to 50% by weight of a component with a molecular weight of less than 1,000, and 10% by weight or less of a component with a molecular weight exceeding 100,000; the proportion of component (C) being from 2 to 15 parts by weight based on 100 parts by weight of the resin component; and when the intermediate coating composition is applied to an undercoating film, pre-dried at 100° C. for 30 minutes and then heat-cured at 145° C. for 30 minutes, the film thickness shrinkage percentage of the cured coating film being 20% or less based on the film thickness of the coating film after pre-drying. The invention also provides a method for forming a multilayer coating film using the aqueous intermediate coating composition.
摘要:
An object of the present invention is to provide a method of producing a multilayer coating film having excellent smoothness and high distinctness of image. The method of forming a multilayer coating film according to the present invention includes the steps of: successively applying an aqueous intermediate coating composition, an aqueous base coating composition, and a clear coating composition to a substrate; and simultaneously heat-curing the resulting intermediate, base, and clear coating layers, the aqueous intermediate coating composition (X) comprising: a base resin (A); a curing agent (B); and a diester compound (C), the curing agent (B) being a polyisocyanate compound (B1) and/or a polycarbodiimide compound (B2); and the diester compound (C) being represented by formula (1): (wherein R1 and R2 are each independently a hydrocarbon group having 4 to 18 carbon atoms, R3 is an alkylene group having 2 to 4 carbon atoms, m is an integer of 3 to 25, and m oxyalkylene units (R3—O) may be the same or different).
摘要:
The invention discloses thermosetting water-based paint comprising water-dispersible acrylic polymer particles which are obtained through multi-stage emulsion polymerization of radical polymerizable unsaturated monomers using a specific reactive emulsifying agent, said monomers comprising amido-containing radical polymerizable unsaturated monomer having at least 2 radical polymerizable unsaturated groups per molecule, methacrylic acid and hydroxyl-containing radical polymerizable unsaturated monomer; and coating film-forming methods which use the thermosetting water-based paint.
摘要:
Novel methods and apparatus for thin film layer-by-layer depositions on substrates is provided. More specifically, provided herein is a layer-by-layer deposition of polymers and colloids on substrates of varying sizes and shapes including, for example, flat solid substrates, powder surfaces, flat porous sheets, and micro-porous pipes. Still more specifically, this disclosure relates to an apparatus that can be used to automate the deposition of ultra-thin layers on various substrates of varying sizes and shapes using layer-by-layer deposition and a method for doing the same.
摘要:
A method for coating motor vehicles with a multi-layer finish that achieves the appearance of polished metal or anodized metal using vacuum metallized flake pigments in one of the coating layers.
摘要:
A multi-component composite coating composition comprising an aqueous-based film-forming composition serving as a color coat or a basecoat and a polyepoxide-polyacid clearcoat is disclosed. The polyacid is made from ring opening a polybasic anhydride with a polyester polyol formed from reacting a polyol with a polycarboxylic acid having at least 20 contiguous carbon atoms between the carboxylic acid groups.