Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C.sub.6-C.sub.16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

A door includes a rectangular panel having a first face, a second face, and two pairs of opposing edges, in which the edges of each pair of edges are parallel and in which a first pair of edges is longer than a second pair of edges. The rectangular panel includes a layered composite material, in which a first layer of the composite material has a positive Poisson's ratio (PPR) and a second layer of the composite material is disposed in contact with the first layer and that includes a material having a negative Poisson's ratio (NPR). The door includes a hinge including plates joined together by a joint, in which a first one of the plates is attached to a first one of the edges of the first pair of edges and in which a second one of the plates extends beyond the first one of the edges. The door also includes a handle opening defined through a thickness of the rectangular panel.

In a method for producing a polymer composite board from plastic waste, in which the plastic waste is processed in an extruder in a melt-kneading step to form a melt, the melt is introduced into an injector and injected under pressure into a cavity of a closed mold by the injector, in order to form a board. The melt is formed from a free-flowing agglomerate and a blowing agent. The free-flowing agglomerate is produced from unsorted, mixed plastic waste, and the melt is introduced into the closed mold via an injection nozzle along an end side of the cavity, in which mold the melt is foamed and cooled to form a foamed core layer of the polymer composite board.

Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C.sub.6-C.sub.16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

Disclosed is a foam modifier, e.g., useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C.sub.6-C.sub.16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

[Problem]

Provided is a long-life sheet-like abrasive article which comprises an abrasive material layer comprising closed-cell bodies and abrasive grains, wherein the closed-cell bodies not only provide air voids for discharging chips, but also ensure a space between the surface of the abrasive material layer and a workpiece material, thereby facilitating discharge of chips of the workpiece material, and, as the closed-cell bodies in a surface part of the abrasive material layer break up due to friction caused by an abrading work, new abrasive grains act on a workpiece material, thereby allowing the abrasive material layer to have self-dressing ability.

[Solution]

The sheet-like abrasive article comprises a substrate, and an abrasive material layer provided on one surface of the substrate, wherein the abrasive material layer comprises closed-cell bodies, first abrasive grains, and a first adhesive binder, wherein: each of the closed-cell bodies has an inner diameter of 30 m to 200 m; the first abrasive grains have an average grain size which is equal to or less than of one third of the inner diameter of each of the closed-cell bodies; and the first adhesive binder adhesively bonds the abrasive material layer to the substrate, and wherein the closed-cell bodies, the first abrasive grains and the first adhesive binder account for 70% by volume to 85% by volume, 5% by volume to 13% by volume, and a remainder, respectively, based on a volume of an entirety of the abrasive material layer.

An at least partially transparent optical component is provided for use in a motor vehicle. The component has a length (L) along a first axis (X), a width (B) along a second axis (Y) that is at a right angle to the first axis (X), and a thickness (D) along a third axis (Z) that is at a right angle to the first and second axes (X, Y). The length (L) and width (B) are significantly greater than the thickness (D). The thickness (D) of the component (10) is between 0.4 mm and 4.0 mm. The component is produced in an injection molded foam process.

Provided is a multilayer foam sheet excellent in flexibility and mechanical strength in the shear direction. A multilayer foam sheet of the present invention is a multilayer foam sheet including: a base layer including a foam layer, and a surface layer including a foam layer or a resin film and laminated on at least one side of the base layer directly or with another layer interposed therebetween, a low-speed shear modulus being 50 MPa or more, and a 25% compressive strength being 125 kPa or less.

A thermal insulation article includes a thermally insulating pad shaped to be positioned in a cavity of a rectangular prism shipping container. The pad includes a solid compostable panel formed primarily of starch and/or plant fiber pulp that holds together as a single unit, and a water-proof or water-resistant film forming a pocket enclosing the panel. The panel includes a first section, a second section, and a third section connecting the first section to the second section, the first and second section each having a central portion and two flaps that extend from the central portion beyond the third section, and wherein the panel is foldable into an open box.

The present invention relates to a multilayer, flexible, porous, dissolvable solid sheet article.