The present invention relates to a method for producing a multicoat paint system on a plastics substrate, in which a basecoat film or a plurality of directly successive basecoat films are produced on a plastics substrate, a clearcoat film is produced directly on the one basecoat film or on the topmost of the plurality of basecoat films, and subsequently the one or more basecoat films and the clearcoat film are jointly cured, this method being a method wherein at least one basecoat material used for the production of the basecoat films comprises at least one aqueous polyurethane-polyurea dispersion (PD) comprising polyurethane-polyurea particles, where the polyurethane-polyurea particles present in the dispersion (PD) comprise anionic groups and/or groups which can be converted into anionic groups, and have an average particle size of 40 to 2000 nm and also a gel fraction of at least 50%.

A method of manufacturing a natural composite material multilayer structure includes: manufacturing a felt layer; spraying a thermosetting resin onto one surface or both surfaces of the felt layer; forming an intermediate layer of the sprayed thermosetting resin to form a composite material; heat-pressing the composite material through a heated mold; and cold-pressing the heat-compressed composite material.

A process for coating a surface of a nonferrous metallic article with a bi-layer polymeric coating, said method comprising: 1) Subjecting the surface of a nonferrous metal article to a chemical washing; 2) Heating the article whose surface will be coated, to a temperature higher than the melting temperature of the selected polymer and lower than the ignition temperature thereof; 3) Apply the first coating layer, with a polymer size of particle of less than or equal to 20 mesh, keeping constant the substrate temperature; 4) Applying a second coating layer of plastic on the first coating layer, after the first layer has adhered to the substrate surface, where the second layer can be the same or different polymer, with a particle size equal to or less than 20 mesh; 5) Heating further the ensemble of substrate and bi-layer coating to a temperature higher than the selected at step 2, but lower than the ignition temperature of the coating and, 6) Cooling the thus coated substrate to room temperature. The product obtained offers a smooth, nonporous surface, high adhesion of the coating to the substrate and it is ensured the covering of all the surface exposed to the chemical treatment of the first stage, so that the resulting coated substrate is suitable for use in the food industry.

Disclosed is a coating material comprising 100 parts by mass of an acid-modified polypropylene (A) and at least 450 parts by mass of organic solvents (B), wherein the acid-modified polypropylene has a melting point of 90? C. or lower and the organic solvents (B) comprises 80-99 mass % aromatic hydrocarbon solvent (B1) and 20-1 mass % one or more solvents (B2) selected from the group consisting of ester-based solvents, ketone-based solvents, and alcohol-based solvents, the sum of the proportion of the ingredient (B1) and the proportion of the ingredient (B2) being 100 mass %. The coating material may further contain a compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group, in an amount of 0.1-20 parts by mass. The compound (C) having, in the molecule, two or more functional groups capable of forming a chemical bond with a carboxyl group may be one having no hydrolyzable group. Also disclosed are: a coating film formed from the coating material; a layered product comprising the coating film and a substrate film; and a flexible flat cable including the layered product.

The present disclosure describes a treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, at least a portion of the pores containing a treating agent comprising: a polymer comprising an olefin-carboxylic acid copolymer; and a modifying agent comprising a hydrophobic amine.

A metal resin composite molded body wherein various metal bases and a resin molded body are integrally and firmly bonded with each other; and a versatile method for producing this metal resin composite molded body are provided. Particularly provided are: a metal resin composite molded body wherein an aluminum base and a polyolefin resin molded body are integrally and firmly bonded with each other; and a simple method for producing this metal resin composite molded body. A metal resin composite molded body comprises a metal base, a polypropylene resin layer and a thermoplastic resin molded body. The polypropylene resin layer is bonded to the metal base with a hydrophilic surface being interposed therebetween. The hydrophilic surface is formed on the metal base. The thermoplastic resin molded body is bonded to the polypropylene resin layer by means of anchoring effect and compatibilizing effect with the polypropylene resin layer.

A pouch-type secondary battery and a method of manufacturing same are capable of completely protecting a metal layer from moisture or air by forming an insulating coating layer including a conformal coating layer on the metal layer exposed at a cut surface of a battery case. The method includes a first step of preparing a battery case including an upper case and a lower case by cutting a laminate sheet including an outer coating layer, a metal layer, and an inner coating layer; a second step of receiving an electrode assembly between the upper case and the lower case; a third step of forming a sealing portion by contacting outer peripheries of the upper case and the lower case; and a fourth step of forming a conformal coating layer on a side surface of the sealing portion so as to prevent exposure of the metal layer.

The present invention relates to a method for producing a multicoat paint system on a plastics substrate, in which a basecoat film or a plurality of directly successive basecoat films are produced on a plastics substrate, a clearcoat film is produced directly on the one basecoat film or on the topmost of the plurality of basecoat films, and subsequently the one or more basecoat films and the clearcoat film are jointly cured, this method being a method wherein at least one basecoat material used for the production of the basecoat films comprises at least one aqueous polyurethane-polyurea dispersion (PD) comprising polyurethane-polyurea particles, where the polyurethane-polyurea particles present in the dispersion (PD) comprise anionic groups and/or groups which can be converted into anionic groups, and have an average particle size of 40 to 2000 nm and also a gel fraction of at least 50%.

A polymer-based substrate is proposed, which in particular is electrostatically coatable, wherein the substrate has a substrate base body made using a polymeric material and a two- or multi-layer coating applied to a surface region of the substrate base body, wherein a first layer of the coating is configured as a bonding layer and is arranged in contact with the surface region of the substrate base body, wherein a second layer of the coating is configured as a lacquerable cover layer, wherein at least one layer of the coating is produced as a layer with reduced surface resistance using a proportion of an electrically non-insulating material, such that it results in a specific surface resistance of this layer of about 10.sup.10 Ohm or less, and wherein at least one layer of the coating is configured as a film.

A metal resin composite molded body wherein various metal bases and a resin molded body are integrally and firmly bonded with each other; and a versatile method for producing this metal resin composite molded body. Particularly provided are: a metal resin composite molded body wherein an aluminum base and a polyolefin resin molded body are integrally and firmly bonded with each other; and a simple method for producing this metal resin composite molded body. A metal resin composite molded body which is characterized by comprising a metal base, a polypropylene resin layer and a thermoplastic resin molded body, and which is also characterized in that: the polypropylene resin layer is bonded to the metal base with a hydrophilic surface being interposed therebetween, said hydrophilic surface being formed on the metal base; and the thermoplastic resin molded body is bonded to the polypropylene resin layer by means of anchoring effect and compatibilizing effect with the polypropylene resin layer.