Abstract:
Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method for producing same. The waterproof sound-transmitting sheet includes: a sound-transmitting layer made of a polymer material and formed in the shape of a web having a plurality of pores; and a coating layer formed on at least one side of the sound-transmitting layer to block pores existing on the surface of the sound-transmitting layer.
Abstract:
The present invention relates to a polymer workpiece (I), at least comprising an upper main surface (1), a lower main surface (2), an injection-mould separating surface (3) and a flow attack edge surface (4), wherein the flow attack edge surface (4) is formed in the region (5) between the injection-mould separating surface (3) and the lower main surface (2) as a planar surface (5') with an angle α with respect to the injection-mould separating surface (3) of 20° to 70°, and/or deviates by an amount a of 0.0 mm to 0.5 mm from the planar surface (5').
Abstract:
The invention relates to a plastic from a group comprising polyethylene (PE), polypropylene (PP), polypropylene/ethylene-propylene-diene-rubber (PP/EPDM) or mixtures thereof, wherein the plastic is coated by a primer comprising a halogenized polyolefin, and the primer is coated by an elastic paint cured by polymerization using a radical reaction, wherein the plastic is an expanded plastic, wherein the paint prevents the penetration of moisture.
Abstract:
A liquid composition and a process for coating the composition onto a surface of a substrate in a substantially oxygen-free atmosphere, under vacuum conditions. The composition comprises one or more components, all of which components do not go into a gas or vapor phase under the vacuum conditions. The composition has an ethylenically unsaturated component composed of an ethylenically unsaturated methacrylate monomer, or a combination of an ethylenically unsaturated methacrylate monomer and an ethylenically unsaturated methacrylate oligomer. The ethylenically unsaturated component is polymerizable or crosslinkable by the application of sufficient electron beam radiation. The composition is substantially absent of ethylenically unsaturated acrylate components, substantially absent of polymerization initiators, and substantially absent of solvents. The composition optionally further comprises one or more polymers without an acrylate functional group and without a methacrylate functional group. The composition optionally further comprises one or more of waxes, pigments, and/or wetting agents.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines mit Wachs umhüllten Heissschmelzklebstoffstranges. Nach Aufschmelzen eines Heissschmelzklebstoffes wird der geschmolzene Heissschmelzklebstoff zu einem Heissschmelzklebstoffstrang geformt, abgekühlt auf dessen Oberflächentemperatur unterhalb des Schmelzpunktes des Heissschmelzklebstoffes, durch ein durch ein Wachsbad mit geschmolzenem Wachs gezogen und auf eine Temperatur, die unter dem Schmelzpunkt des Wachses liegt, abgekühlt. Mittels dieses Verfahrens wird auf einfache Art und Weise ein mit Wachs umhüllter Heissschmelzklebstoffstrang, dessen Wachsumhüllung dicht und von konstanter Qualität ist, hergestellt.
Abstract:
A plastic pipe (1) is provided with a barrier layer (2) which is applied to its outer side and is less than 1 νm, preferably less than 0.1 νm, thick. The barrier layer (2) consists of metal, preferably aluminium. The metal layer (2) is applied to the plastic pipe by physical vapour deposition under high vacuum, the plastic pipe (11) being smoothed on the outer side before the layer of metal (2) is applied.
Abstract:
Machine (1 ) for the plasma treatment of containers (3), which comprises: a chamber (5) suitable for receiving a container (3) to be treated, a cover (8) defining a nozzle (9) in the extension of the chamber (5); a duct (14) for depressurizing the container (3), which duct emerges in the nozzle (9) and connects the latter to a vacuum source (15); a first valve (19) having a closed position, in which it closes off the depressurization duct (14), and an open position, in which it brings the nozzle (9) and the vacuum source (15) into communication; a duct (27) for pressurizing the container (3), separate from the depressurization duct (14), this pressurizing duct (27) emerging in the nozzle (9) beyond the depressurization duct (14) and connecting the nozzle (9) to a pressure source (28); and a second valve (29) having a closed position, in which it closes off the pressurizing duct (27), and an open position, in which it brings the nozzle (9) and the pressure source (28) into communication.
Abstract:
The invention relates to a process for the preparation of a composite material, said composite material comprising a substrate and a layer on the substrate, comprising a vapour-depositing step in which a compound comprising a triazine compound is deposited on the substrate at a pressure below 1000 Pa, whereby the layer is formed, wherein during the vapour-depositing step the temperature of the substrate lies between -15 °C and +125 °C. The invention further relates to a composite material, obtainable by the process as disclosed.