A method of producing a composite material molded article includes enclosing a core fiber base material formed from unwoven fabric in a molding tool with the core fiber base material placed between a first reinforcing fiber base material and a second reinforcing fiber base material, injecting matrix resin into the first and second reinforcing fiber base materials in the molding tool, and injecting foamable resin into the core fiber base material in the molding tool.

The multilayer foam sheet has a surface resistivity of 1?1013? or less and has a foam layer and resin layers that are laminated on both surfaces of the foam layer. The resin layers each have a multilayer structure formed from a surface layer and an intermediate layer that is positioned between the surface layer and the foam layer. The foam layer includes a polyethylene-based resin PE2. The intermediate layers are configured from an antistatic mixture containing a polyethylene-based resin PE3 and a polymeric antistatic agent. The surface layers are configured from a mixed resin containing a polyethylene-based resin PE4 and a polystyrene-based resin, and substantially do not contain the polymeric antistatic agent. The polystyrene-based resin content of the mixed resin is 3-35 wt %.

A thermoplastic composite article comprising a porous core layer comprising a plurality of reinforcing fibers, a lofting agent and a thermoplastic material is provided. In certain instances, the article further comprises a skin layer disposed on the core layer and an adhesive layer between the core layer and the skin layer. In some configurations, the adhesive layer comprises a thermoplastic polymer and an effective amount of a thermosetting material to provide a post-molding peel strength between the skin layer and the post lofted core layer of at least 0.5 N/cm (in either or both of the machine direction or cross direction) as tested by DIN 53357 A dated Oct. 1, 1982.

A method for manufacturing an interior lining part, includes producing a skin; placing the skin in a foaming mold with a support layer; foaming an intermediate layer; cutting out an area of the skin producing a cutout area of the skin; placing a piece of adhesive tape or film in the cutout area, the piece of adhesive tape or film being placed in between the skin and the intermediate foam layer; and placing an insert in the cut out area of the skin. A method for manufacturing an interior lining part, includes producing a skin by rotational molding; placing a piece of adhesive tape or film in the cutout area, the piece of adhesive tape or film being placed in between the skin and the intermediate foam layer; placing the skin in a foaming mold with a support layer; foaming an intermediate layer; cutting out an area of the skin producing a cutout area of the skin; and placing an insert in the cut out area of the skin.

The present invention relates to a process for the production of composite elements comprising a first and a second outer layer, a vacuum insulation panel between the two outer layers, rigid polyurethane foam in contact with the first outer layer and the underside of the vacuum insulation panel, and also rigid polyurethane foam in contact with the second outer layer and the upper side of the vacuum insulation panel, comprising application of a reaction mixture (R1) for the production of a rigid polyurethane foam onto the first outer layer, bringing the lower side of a vacuum insulation panel into contact with the unhardened reaction mixture (R1), application of a reaction mixture (R2) for the production of a rigid polyurethane foam to the upper side of the vacuum insulation panel, bringing the second outer layer into contact with the layer of the unhardened reaction mixture (R2), and finally hardening of the two rigid polyurethane foam systems (R1) and (R2) to give the composite element. The present invention further relates to composite elements thus obtainable, and also to the use of a composite element of the invention or of a composite element obtainable by a process of the invention, as component for refrigeration equipment or as construction material.

The invention discloses a multi-function soft wall, comprising a surface printing layer and a base material, the base material further including a top layer, and a second layer, a third layer and a bottom layer that are all foaming layers, wherein both the second layer and the third layer have a foaming ratio less than that of the bottom layer, and a fiber layer is disposed between the third layer and the bottom layer. The invention further provides a method of manufacturing a multi-function soft wall, comprising: sequentially coating a top layer, a second layer, a third layer, a fiber layer and a bottom layer on a release paper, respectively, and then obtaining a base material, and performing a foaming process with respect to the second layer, the third layer and the bottom layer, respectively, and performing a drying and cooling process after the coating step; and separating the base material from the release paper, and printing a surface printing layer on the top layer. The multi-function soft wall can release negative ions, and continuously eliminate various pollutions indoors.

A roofing system includes a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation, and a plurality of cover boards adapted for overlying the layer of insulation. Each of the plurality of insulation boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of insulation boards includes polyisocyanurate foam having a first polyisocyanurate foam density. Each of the plurality of cover boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of cover boards includes polyisocyanurate foam having a second polyisocyanurate foam density greater than the first polyisocyanurate foam density. Each of the plurality of cover boards also includes 1% to 25% by weight one or more fillers selected from the group consisting of organic fillers and inorganic fillers

Vulcanized tube having at least one foamed layer of elastomer material with a cellular structure with an average cell size in a range between 5 and 200 microns and the number of cells per unit of volume in a range between 1.9?10.sup.5 and 1.4?10.sup.9 cells/cm.sup.3. To form the tube, a forming device is inserted into an unvulcanized tube obtained in a prior initial stage of extrusion. At least one foaming agent is added to the elastomer material of the foamed layer in the initial stage of extrusion, such that the tube is vulcanized and the foamed layer is also simultaneously foamed. The vulcanizing process is carried out under pressure. Finally, in a stage of removal, the already vulcanized and foamed tube is removed from the forming device.

A method for manufacturing an interior lining part, includes producing a skin; placing the skin in a foaming mold with a support layer; foaming an intermediate layer; cutting out an area of the skin producing a cutout area of the skin; placing a piece of adhesive tape or film in the cutout area, the piece of adhesive tape or film being placed in between the skin and the intermediate foam layer; and placing an insert in the cut out area of the skin. A method for manufacturing an interior lining part, includes producing a skin by rotational molding; placing a piece of adhesive tape or film in the cutout area, the piece of adhesive tape or film being placed in between the skin and the intermediate foam layer; placing the skin in a foaming mold with a support layer; foaming an intermediate layer; cutting out an area of the skin producing a cutout area of the skin; and placing an insert in the cut out area of the skin.

Light weight composites with high flexural strength comprise epoxy foam sandwiched between two layers of facing material have high strength and low weight and can be used to replace steel structures. The facing layer may be fibrous material especially glass or carbon fibres, the facing material is preferably embedded into the epoxy matrix. Alternatively they may be matching box structures or concentric metal tubes. The sandwich structures may be prepared by laying up the fibre; coating and/or impregnating the layer with epoxy resin, laying a layer of heat activatable foamable epoxy material, providing a further layer of the fibrous material optionally coated and/or impregnated with epoxy resin on the foamable material and heating to foam and cure the epoxy materials. Alternatively they may be formed by extrusion of the foamable material between the surface layers.