A structural panel for a recreational vehicle includes a plurality of layers laminated together to form a lamination. The lamination forms an outer surface of the structural panel, which is configured to form a sidewall, a ceiling, or a floor of the recreational vehicle when mounted in the recreational vehicle relative to the vehicle chassis. The structural panel further includes an image that is formed on or in one of the plurality of layers in or internal to the structural panel and which is visible at the outer surface. The image is in a location that is in a known fixed registry with a structural reference, such as the outer perimeter, of the structural panel prior to the panel being mounted in the recreational vehicle wherein the location of the image is known relative to the structural reference of the structural panel.

The invention relates to a flooring panel suitable for constructing a floor covering, which panel comprises a core layer and a decorative top layer and a layer situated between the core layer and the decorative top layer which enables improves sound performance.

Provided is an electromagnetic dielectric material (1). The electromagnetic dielectric material (1) is a column structure. The electromagnetic dielectric material (1) includes an inner core (11), a first foam layer (12) and a second foam layer (13) sequentially arranged from inside to outside on the cross section of the column structure. The first foam layer (12) and the second foam layer (13) are each a layer formed from a foam material foamed. The electromagnetic dielectric material further includes metal wires (14). The metal wires (14) are disposed in the longitudinal direction of the column structure, are not in contact with each other and are evenly distributed on the periphery of the first foam layer (12). Further provided is a method for producing an electromagnetic dielectric material (1).

A composite structure includes a foam core formed from a first polymer and between about 0.5 wt. % and about 2.5 wt. % graphene. The foam core has an average pore size between about 25 μm and about 75 μm, and a cell density between about 4×10.sup.6 cells/mm.sup.2 and about 6×10.sup.6 cells/mm.sup.2. Also, an overmolded skin formed from a second polymer and between about 0.25 wt. % and about 5.0 wt. % graphene is disposed on the foam core. A method of manufacturing a composite structure includes injection molding a foam core from a first polymer containing between about 0.25 wt. % and about 5.0 wt. % graphene, and injection molding an overmolded skin from a second polymer containing graphene between about 0.25 wt. % and about 5.0 wt. % graphene.

A resin molded article includes: a main body portion having a design face and an opposite face thereto, and having a first foamed layer formed inside the main body portion; a protruding portion that is provided at an edge portion of the main body portion, and that protrudes toward a side opposite from the design face in a thickness direction of the main body portion; and a concavity that is recessed from a surface of the opposite face toward a thickness direction side of the main body portion at a root portion of the protruding portion at the opposite face.

The invention relates to a decorative surface covering element, in particular a floor panel, ceiling panel or wall panel. The invention also relates to a panel covering, such as a floor covering, ceiling covering or wall covering, including a plurality of panels. The invention further relates to a method of producing a decorative surface covering element.

The invention relates to the manufacturing of porous polymer membranes by (a) providing pellets comprising a polymer matrix and particles in the ratio 90:10 to 10:90, (b) converting said pellets into a non-porous film by a solvent-free process; (c) removing said particles from said film with an aqueous composition to thereby obtain said membrane. The invention further relates to pellets useful in such manufacturing process as well as porous polymer membranes obtainable or obtained by such manufacturing process as well as textile materials and articles containing such membranes; to the use of such pellets, membranes, and articles.

In an illustrative embodiment, a panel assembly for partitioning a trailer cargo space is provided including a first insulated panel and a second insulated panel, each insulated panel including a first side vertical edge having a connecting edge, and a second side vertical edge having a connecting edge. One of the insulated panels includes one or more spaced apart vertical cut lines proximate the first side vertical edge, where, when a given cut line is cleaved, the cleaved cut line is configured to form a new second side vertical edge having a connecting edge. A first mating extrusion may secure with a second side vertical edge of the first insulated panel, and a second mating extrusion may secure with a first side vertical edge of the second insulated panel where, upon mating the first and second mating extrusions, an insulated wall is formed.

Panel suitable for assembling a floor covering by interconnecting a plurality of said panels with each other, wherein the panel has a substantially planar top side, and a substantially planar bottom side, at least four substantially linear side edges comprising at least one pair of opposite side edges, the panel having a layered structure which comprises a decorative top layer and a core layer wherein the decorative top layer and the core layer have a different chemical composition, wherein a reinforcement layer is positioned between the top layer and the core layer, and having a modulus of elasticity of at least 2 Mpa.

A structural member including a lightweight core, one or more skins, and a crosslinking nanolayer interposed therebetween that results in significant mechanical strength in the structure. The core is a polymer of reduced density by way of included voids, such as an open or closed cell foam, honeycomb, or corrugated structure. The core polymer has a lower density and may have a higher softening or melting temperature than the polymer skin materials. The core may be discontinuous at the interface with the skin such that only a small percentage of the core surface is actually in contact with the skin compared to the overall area of the interface. The skin may be a thermoplastic layer that attaches to the core material. The skin may be a composite material including non-thermoplastic reinforcements. The crosslinking nanolayer is covalently bonded to the surface of the core material and provides molecular compatibility with the skin material.