A packaging material for packaging contents containing fragrances includes a first polyolefin layer, an inorganic deposition layer, a gas barrier coating layer, and a second polyolefin layer having heat-sealing properties, in this order.

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.

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.

The object of the present disclosure is to provide an automobile part capable of improving fuel consumption by weight reduction of the part because the impact resistance that can be sufficiently used even in cold regions can be given to a part made of a thinner plastic.

An automobile part obtained by forming a coating film layer on a plastic material comprising a polypropylene resin composition modified with an elastomer component having a thickness of 1.5 to 2.5 mm, wherein said coating film layer is a multilayer coating film obtained by coating and baking the following coating compositions in this order; (a) a primer coating composition having a single film tensile elongation of 5 to 35% at −20° C., (b) a base coating composition containing a coloring agent and, (c) a clear coating composition containing at least a linear acrylic polyol (c-1) with a hydroxyl value of 80 to 220 mgKOH/g, a crosslinked acrylic resin (c-2) containing 2 to 30 parts by weight of polyfunctional monomer (c-2-1) with 2 to 4 radically polymerizable unsaturated groups per a molecule and 98 to 70 parts by weight of monofunctional monomer (c-2-2) with one polymerizable unsaturated group as a constituent unit, and having a glass transition point of 70 to 120° C., and a curing agent (c-3), and wherein the coating film layer has a Dupont impact strength of 4.9 J or more at −30° C.

Polypropylene (PP) superhydrophobic sheets and a fabrication method using a stream of polypropylene from plastic waste thereof are provided. Superhydrophobic PP sheets of varying thickness having a base layer and a top layer may be fabricated using recycled or waste polypropylene, where the fabrication process uses 20% of total plastic waste to prepare said sheets having contact angles ranging from 140 to 160 degrees. The polypropylene superhydrophobic sheets may impart protective water-repellent properties against the elements.

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.

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.

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 invention relates to a method for producing a coated aluminum strip, in which the aluminum strip is unwound from a coil and fed into a unilateral or bilateral extrusion coating arrangement, the aluminum strip is extrusion coated with a thermoplastic polymer and after being extrusion coated, the aluminum strip is reheated to a metal temperature above the melting point of the thermoplastic polymer. The object of providing a method for producing an aluminum strip by which an extrusion-coated aluminum strip can be produced which can be processed at high processing speeds in follow-on composite tools is achieved in that the unilateral or bilateral plastics material coating of the aluminum strip is textured, after being reheated, using rolls which have a superficial structure.

The object of the present disclosure is to provide an automobile part capable of improving fuel consumption by weight reduction of the part because the impact resistance that can be sufficiently used even in cold regions can be given to a part made of a thinner plastic. An automobile part obtained by forming a coating film layer on a plastic material comprising a polypropylene resin composition modified with an elastomer component having a thickness of 1.5 to 2.5 mm, wherein said coating film layer is a multilayer coating film obtained by coating and baking the following coating compositions in this order; (a) a primer coating composition having a single film tensile elongation of 5 to 35% at ?20? C., (b) a base coating composition containing a coloring agent and, (c) a clear coating composition containing at least a linear acrylic polyol (c-1) with a hydroxyl value of 80 to 220 mgKOH/g, a crosslinked acrylic resin (c-2) containing 2 to 30 parts by weight of polyfunctional monomer (c-2-1) with 2 to 4 radically polymerizable unsaturated groups per a molecule and 98 to 70 parts by weight of monofunctional monomer (c-2-2) with one polymerizable unsaturated group as a constituent unit, and having a glass transition point of 70 to 120? C., and a curing agent (c-3), and wherein the coating film layer has a Dupont impact strength of 4.9 J or more at ?30? C.