The purpose of the invention is a method for coating a substrate made of an aluminum alloy in the AA3000 or AA5000 series, comprising the following steps: a) coating by (co-)extrusion of a polypropylene modified by maleic anhydride adhesion layer on each face of said substrate, and a surface layer made of polypropylene comprising at least one slip agent, so as to form a metalloplastic strip; b) calendering said metalloplastic strip; c) heat treatment of said metalloplastic strip; d) cooling of the metalloplastic strip, to obtain an H48 metallurgical temper and a coefficient of friction of 0.06 or less. The method being particularly suitable for the fabrication of food packaging and particularly for beverage can lids.

Examples are disclosed that relate to composites and methods for forming non-planar composites. In one example, a method comprises: providing a first non-planar metallic skin and a second non-planar metallic skin, providing a substantially planar polymer core between the first non-planar metallic skin and the second non-planar metallic skin, and using the first non-planar metallic skin and the second non-planar metallic skin (1) to deform the core between the first non-planar metallic skin and the second non-planar metallic skin and (2) to bond the core to one or more of the first non-planar metallic skin and the second non-planar metallic skin.

Methods, plate elements and heat/enthalpy exchangers. a) perforating an unformed plate element with defined outer dimensions in any desired area and in any desired dimension; b) covering at least one side of the unformed plate element with a thin polymer film with latent energy exchange characteristics and; c) forming the plate element into a desired shape and a pattern of corrugations and/or embossing. The operations b) and c) may be performed in a different order. For instance, when the plate element is made out of plastic, b) may be performed before c) whereas, when the plate element is made out of aluminum (or plastic), c) may be performed before b). Operations a) and/or b) and/or c) may also, in certain embodiments, be combined.

An article may be made of multilayer composite material. The multilayer composite material may include central element (I) between first and second reinforcement layers (B) to form structure (B)-(I)-(B). The central element (I) may include: first and second structural layers (A), each of the first and second structural layers (A) including at least one mat of needle punched thermoplastic fibers selected from polyester fibers, polyamide fibers, polypropylene fibers, or mixtures thereof bonded through thermosetting resin; and third reinforcement layer (B) between the first and second structural layers (A). The first, second, and third reinforcement layers (B) each may include fibrous material, including one or more types of fibers selected from glass fibers, natural fibers, carbon fibers, basalt fibers, aramid fibers, or mixtures thereof.

The present invention relates to an ornamental laminate film made from at least an inside film and an outside film, provided with a letter and/or a pattern by printing and as a raised part protruding toward the outside film. At least apart of the letter and/or the pattern has a metallic luster and differs in at least one of hue, brightness, chroma and glossiness from a region other than the letter and/or the pattern, and the raised part is formed along at least a part of the letter and/or the pattern. As a result of that, an ornamental laminate film with excellent design is provided without impairing its function as a packaging material.

A method for manufacturing a quadrangular shell having five faces and non-developable trihedral connectors between the faces. Plies having continuous fibers are cut to cover the five faces of the shell outside of the trihedral connector zones. Four connector components consolidated in the shape of the trihedral connectors are obtained. Each of the components includes an integration zone between the plies. Plies are positioned and laid up. The four consolidated components are inserted in the trihedral connection zones by inserting the integration zones between two plies to form an assembly obtain a preform. The preform is placed in a tool and the consolidation of the stack of fibrous plies is performed by subjecting the assembly to a predetermined pressure/temperature cycle.

The present invention relates to a sound absorbing and insulating material with superior moldability and appearance and a method for manufacturing the same, more particularly to a sound absorbing and insulating material consisting of an inner layer 1 formed of a first nonwoven fabric mainly formed of a heat-resistant fiber and a binder uniformly distributed inside the first nonwoven fabric and maintaining the three-dimensional structure inside the first nonwoven fabric and an outer layer 2, 2 formed of a second nonwoven fabric mainly formed of a heat-resistant fiber, wherein the outer layer is stacked on one or both sides of the inner layer, and a method for manufacturing the same. The sound absorbing and insulating material of the present invention has superior sound-absorbing property, flame retardancy, heat resistance, heat-insulating property and high-temperature moldability. In addition, there is no concern of deterioration of surface appearance caused by leakage of the binder due to the presence of the outer layer.

The present invention relates to a sound absorbing and insulating material with superior moldability and appearance and a method for manufacturing the same, more particularly to a sound absorbing and insulating material consisting of an inner layer 1 formed of a first nonwoven fabric mainly formed of a heat-resistant fiber and a binder uniformly distributed inside the first nonwoven fabric and maintaining the three-dimensional structure inside the first nonwoven fabric and an outer layer 2, 2 formed of a second nonwoven fabric mainly formed of a heat-resistant fiber, wherein the outer layer is stacked on one or both sides of the inner layer, and a method for manufacturing the same. The sound absorbing and insulating material of the present invention has superior sound-absorbing property, flame retardancy, heat resistance, heat-insulating property and high-temperature moldability. In addition, there is no concern of deterioration of surface appearance caused by leakage of the binder due to the presence of the outer layer.

A skinned panel for stably molding a thin skin material and a molding method thereof. An extruding device is configured to extrude a pair of multilayered resin sheets, each of which has a lamination structure of an inner layer made of a foamed resin and an outer layer made of a non-foamed resin that is changed into a skin material of a sandwich panel as a skinned panel. The pair of the resin sheets is abutted to the circumferential part of the pair of the split molds for producing sealed spaces. The sealed spaces are sucked for pressing the pair of the resin sheets onto cavities of the pair of the split molds. Accordingly, the pair of the resin sheets is formed in a shape substantially identical to the outline of the sandwich panel.

Stretchable elastic laminates having an improved cloth-like appearance, as well as methods of preparing the laminates, are disclosed herein. Particularly, the present disclosure is directed to methods of preparing tissue-elastic laminates with uniform tissue fractures as the laminate is stretched 50%, or even 100%, or more in at least one of the machine direction (MD) or cross direction (CD).