The present invention relates to a method for forming a multilayer plastic sheet material for floor and/or wall panels, wherein a first polymer mass comprising a chemically foamed PVC is melted under pressure and is forced through an extruder head at a well-defined discharge rate as a plastic strand in sheet form that is provided with one or more layers so that a multilayer plastic strand is formed, which is propelled towards two or more rolls of a rolling mill, which processes the multilayer plastic strand to a sheet of a defined thickness and where one of the rolls will apply a three-dimensional structure in the top layer. This sheet will then be led away by a discharge device to a sawing device to be cut off to the desired length and width and finally, in a subsequent production step, as multilayer plank-shaped elements, will be provided with coupling parts on two opposite edges so that several of said plank-shaped elements are couplable together.

Provided are multilayer structures and articles comprising same. The multilayer structure comprises: a biaxially-oriented polyethylene film comprising a skin layer with a matte surface and a core, the core comprising one or more core layers; a sealant film; and an adhesive adhering the sealant film to the matte surface of the skin layer of the biaxially-oriented polyethylene film. The multilayer structure can exhibit an enhanced adhesive bonding force in comparison to other multilayer structures.

The present invention provides an arrow shaft including a carbon fiber sheet having a transfer layer formed thereon, wherein the carbon fiber sheet is formed to extend in one direction and includes a plurality of carbon fiber layers in which a camouflage layer is formed on at least a part of an outermost layer thereof, and at least one transfer layer is formed on one surface of at least one of the carbon fiber layer and the camouflage layer.

A solid state foaming process for generating a microcellular foam sheet for use in forming a container is provided includes a pre-foaming treatment phase prior to a solid state impregnation and foaming phase. The solid state microcellular foam sheet includes a central foamed section defining a foam layer within the microcellular foam sheet having a first population of cells within which are interspersed a second population of cells.

A wood-grained polymer substrate includes a plurality of layers of different colors. The substrate is formed into elongated boards and used in the production of various end products similar to natural wood. Methods for producing the wood-grained polymer substrate are also provided.

A security device includes an array of lenses and a plurality of first and second segments disposed under the array of lenses. At a first viewing angle, the array of lenses presents a first image for viewing without presenting the second image for viewing, and at a second viewing angle different from the first viewing angle, the array of lenses presents for viewing the second image without presenting the first image for viewing. At least one first or second segment can include one or more microstructures or one or more nanostructures configured to produce one or more colors for the first or second image.

A film is described comprising a (meth)acrylic polymer and polyvinyl acetal polymer composition, wherein the film comprises a structured layer.

A method for forming a multilayer plastic sheet material is disclosed, where a first polymer mass is melted under pressure and is passed through an extruder head at a specified discharge rate in the form of a plastic strand in sheet form that is provided with one or more layers so that a multilayer plastic strand is formed. This is passed to two or more rolls of a finishing stand that processes the multilayer plastic strand into a sheet. After the plastic strand in sheet form leaves the extruder head, it is first passed between a top roll and a bottom roll of a roughing stand. The speed of the rolls of the finishing stand and the rolls of the roughing stand is synchronized with the discharge rate of the plastic strand in sheet form from the extruder head, so that the plastic strand is processed without stress.

Provided is a film that has high-quality low gloss appearance with a small change in appearance of texture as observed at various viewing angles and that has tactile texture. Solution means A film of an embodiment is a film including a surface layer embossed, wherein the surface layer includes a low gloss layer and a gloss printed pattern partially covering the low gloss layer, (1) 85-degree surface glossiness of the surface layer is less than or equal to 3.5 GU as an in-plane average value; (2) Δ85-degree surface glossiness defined by a difference between an in-plane maximum value of the 85-degree surface glossiness and the in-plane average value of the 85-degree surface glossiness of the surface layer (= in-plane maximum value of 85-degree surface glossiness - in-plane average value of 85-degree surface glossiness) is from 0.2 to 2.5, and (3) surface roughness Ra of an embossed surface of the film is greater than or equal to 3.5 .Math.m.

A color-changing sheet according to an embodiment of the present invention may include a base layer having a brightness (L value) of less than 40 and a color layer positioned on at least one surface of the base layer, containing a color dye or a pigment, and having a transmittance of to 90%, wherein a thickness ratio of the base layer to the color layer is 0.1 to 10, and may realize color change without adding additional particles.