This document describes systems and processes for forming synthetic molded slabs, which may be suitable for use in living or working spaces (e.g., along a countertop, table, floor, or the like).

Provided is a method of manufacturing an antireflection film including, in order: a step (1) of providing a layer (a) containing a curable compound (a1) and a particle (a2) having an average primary particle diameter of 100 nm to 380 nm and a layer (b) containing a compound (b1) incompatible with the curable compound (a1) so that the particle (a2) is buried in a layer defined by combining the layer (a) and the layer (b), on a substrate; a step (2) of curing the layer (a) in a state in which the particle (a2) is buried in the layer defined by combining the layer (a) and the layer (b); and a step (3) of removing the layer (b) to form an uneven shape on a surface of the layer (a) with the particle (a2).

The purpose of the invention is a device that compacts thin sheets of thermoplastic material in order to facilitate their subsequent recycling by means of a suction air current combined with another impulsion current by means of heated air. The device includes an axial fan (1), which is coupled in the lower part to an essentially prismatic structure (10), an inlet nozzle (2) placed in the lower part of the prismatic structure (10); a heated mould (3) housed in the intermediate part of the prismatic structure (10) as a continuation from the inlet nozzle (2), where the heated mould (3) is provided with a plurality of slots that allow the passing of the suction air current; a guiding conduit between the inlet nozzle (2) and the heated mould (3); and a slot (4) housed between the heated mould (3) and the fan (1).

A molding process includes the operation of placing insulation material comprising fibers and binder on the fibers in a mold cavity. The molding process further includes the step of transferring heat to the insulation material to cause the binder to cure.

A PVB film for HUD, a forming mold and a forming method thereof are presented. The accuracy error of HUD imaging achieved by the PVB film for HUD is 0.1 mrad. The forming mold includes an upper mold and a lower mold, the two of which can form an enclosed mold cavity when clamped together, wherein protective films are disposed on inner surfaces of the upper mold and the lower mold, respectively, for supporting PVB material and preventing the PVB material from bonding with the upper mold and the lower mold, and wherein shapes of the protective films match shapes of the upper mold and the lower mold.

A transparent, peelable polyester film is provided with clarity greater than 80% including a biaxially oriented polyester film as base layer (B) and an offline coated heat-sealable outer layer (A) that is peelable relative to ready-meal APET or RPET trays. The heat-sealable and peelable outer layer (A) includes from 85 to 99 wt % polyester and from 1 to 15 wt % other substances, the polyester including of from 25 to 95 mol % of units derived from at least one aromatic dicarboxylic acid and from 5 to 75 mol % of units derived from at least one aliphatic dicarboxylic acid. The polyester incorporates at least 10 mol % of units derived from diols having more than 2 carbon atoms. The mass of the dry outer layer (A) is from 1 to 5 g/m.sup.2. Production processes for the foregoing film, and use thereof as scalable film for ready-meal trays is also provided.

The present invention discloses a method and device of film stepless biaxial tension based on saddle-shaped surface transition. In the film surface biaxial stretching process, with the lateral and longitudinal tensile forces applied to a different tangent plane, the film is subjected to smooth transition in a three-dimensional space from a narrow plane via a saddle-shaped surface to a wide plane, with the thickness uniformity of the biaxial tension film regulated by controlling the shape of the saddle-shaped surface; the device comprises a lateral tension unit and a longitudinal tension unit, the angle between the two lateral tension wheels in the lateral tension unit being adjustable, the two longitudinal tension wheels in the longitudinal tension unit being arranged in parallel; the lateral tension of the film is achieved by the rotation of the lateral tension wheel, and the longitudinal tension of the film is achieved by the linear velocity difference between the lateral tension wheel and the longitudinal tension wheel. The present invention, adopting the binding wheel structure, effectively uses the saddle-shaped surface to regulate the bowing phenomenon, and reduces the contact surface between the film and the tension element, thus preventing the surface performance from deteriorating by friction, which is advantageous for improving the thickness uniformity of the film product.

An extrusion die with adjustable land channel can be formed of a die body that includes a first die body portion and a second die body portion, a first lip body, a second lip body, and a land channel body. The extrusion die can have a flow channel that includes a land channel terminating in an outlet orifice. The flow channel may be bound on one side by the first die body portion, the land channel body, and the first lip body. The flow channel may be bound on an opposite side by the second die body portion and the second lip body. In some examples, the length of the land channel is adjustable by configuring the land channel body and/or first lip body to move across the width of the flow channel.

Disclosed are a vibrating diaphragm for a sound generating device, a method for preparing the vibrating diaphragm, and a sound generating device. The vibrating diaphragm comprises at least one modified thermoplastic polyester elastomer layer, wherein a modifier is involved which is at least one of a temperature: resistant resin, an inorganic filler and an anti-aging agent, and the modifier is added to a themoplastic polyester elastomer material. In an embodiment of the present invention, by adding the modifier to the themoplastic polyester elastomer material and sufficiently mixing the modifier when making a film layer, the aim of improving the temperature resistance of a moulded vibrating diaphragm is achieved.

A method of automatically advancing a polymer cut-board, such as cellular polyvinyl chloride, through a stationary, non-spinning sealing element having a rounded or cylindrical surface that contacts and compresses a cut edge of the board to provide a sealed skin surface to the cut edge.