Abstract:
Magnetic recording media are obtained by preparing a dispersion of anisotropic magnetic material and conventional additives in a solution of a polymeric binder in an organic solvent, applying the dispersion as a layer to a nonmagnetizable substrate, then orienting the anisotropic magnetic material in a magnetic field and solidifying the applied magnetic layer, the magnetic layer containing finely divided organic, hydrophobic supporting pigments and a highly viscous polysiloxane.
Abstract:
A depilation apparatus is provided comprising at least one pair of depilation rollers (3, 4) which can be driven in opposite directions and whose circumferential surfaces have undulatory cross-sectional profiles with which they interengage circumferentially, one of said rollers being adapted to be driven by means of a motor, the undulatory cross-sectional profile of the circumferential surface extends linearly over the whole length of the rollers and the maximum diameter of the depilation rollers is selected to be of the order of magnitude of 4.5 mm and the number of crests of the cross-sectional profile is selected to be the order of magnitude of 10.
Abstract:
A diffuser for introducing gas in bubbles into liquid held in an aeration tank comprising a body member having a backing surface and passaging extending from a gas inlet to an outlet at the backing surface, and a flexible, gas permeable membrane covering the backing surface and secured at its periphery to the body member in sealing relationship thereto. The membrane is adapted to distend and move away from the backing surface upon delivery of gas under pressure to diffuser, with the gas flowing through the distended portion of the membrane and into the liquid in the form of relatively small gas bubbles, and adapted to collapse into engagement with the backing surface when gas under pressure is not delivered to the diffuser. A check valve comprising a movable valve member on the membrane and a valve seat on the backing surface enables flow of gas into the space between backing surface and the membrane, and blocks flow of liquid into the passaging in the body member.
Abstract:
A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt portions are fixedly attached to the pin bosses and depend to a lowermost free edge. At least one of the skirt portions has a recess extending upwardly from the lowermost free edge beyond the central axis of the pin bores.
Abstract:
A sensor device for detecting at least one flow property of a fluid medium, including at least one sensor housing, in which at least one electronic module having at least one flow sensor for detecting the flow property is accommodated. At least one pressure sensor and at least one humidity sensor are accommodated inside the sensor housing, at least the pressure sensor and optionally also the humidity sensor is situated inside the sensor housing independently of the electronic module.
Abstract:
A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt portions are fixedly attached to the pin bosses and depend to a lowermost free edge. At least one of the skirt portions has a recess extending upwardly from the lowermost free edge beyond the central axis of the pin bores.
Abstract:
A connecting rod for a piston assembly includes first and second guidance members for guiding a piston assembly within a cylinder during piston stroke along a first axis. The guidance members are supported by first and second support ribs extending from a shaft of the connecting rod and include first and second sliding surfaces for contacting side walls of the cylinder. The connecting rod includes an attachment boss disposed at a first end of the shaft and defines a second axis perpendicular to the first axis. The first and second support ribs extend radially outwardly from the attachment boss and are spaced radially about the second axis by approximately 180 degrees.
Abstract:
The present invention relates to processes for application of a metal layer on a substrate via deposition of a metal from a metal salt solution by a chemical and/or electroplating method, a significant factor in these processes being that carbon nanotubes are present in the substrate surface. The present invention moreover relates to the use of carbon nanotubes for application of a metal layer on a substrate.
Abstract:
The invention relates to a device for the electrolytic coating of at least one electrically conductive substrate or a structured or full-surface electrically conductive surface on a nonconductive substrate, which comprises at least one bath, one anode and one cathode, the bath containing an electrolyte solution containing at least one metal salt, from which metal ions are deposited on electrically conductive surfaces of the substrate to form a metal layer while the cathode is brought in contact with the substrate's surface to be coated and the substrate is transported through the bath, wherein the cathode comprises at least two disks (2, 4, 10) mounted on a respective shaft (1, 5, 14) so that they can rotate, the disks (2, 4, 10) engaging in one another. The invention furthermore relates to a method for the electrolytic coating of at least one substrate, which is carried out in a device according to the invention. Lastly, the invention also relates to a use of the device according to the invention for the electrolytic coating of electrically conductive structures on an electrically nonconductive support.
Abstract:
The present invention relates to alkyne compounds of the formula I P1—Y1-A1-Y3-(T1-B1-)m-T3-C≡C-T4-(B2-T2-)n-Y4-A2-Y2—P2 (I) in which P1, P2 are each, independently of one another, hydrogen, C1-C12-alkyl, a polymerizable group or a group suitable for polymerization or a radical which carries a polymerizable group or a group suitable for polymerization, Y1, Y2, Y3, Y4 are each, independently of one another, a linking unit, B1, B2 are each, independently of one another, —C≡C— or a linking group as defined for Y1 to Y4, A1, A2 are each, independently of one another, a single chemical bond or a spacer having from one to 30 carbon atoms, T1, T2, T3, T4 are each, independently of one another, a divalent saturated or unsaturated carbocyclic or heterocyclic radical, and m, n are each, independently of one another, 0 or 1, with the proviso that at least one of the linking units Y3 or Y4 is a group —O—CO—O—, —O—CO—N(R)—, —(R)N—CO—O— or —(R)N—CO—N(R)—. The invention further relates to nonpolymerizable and polymerizable liquid-crystalline compositions comprising at least one alkyne compound of the formula I according to the invention, the use of these nonpolymerizable and polymerizable liquid-crystalline compositions for producing optical components, the use of the polymerizable liquid-crystalline compositions for printing or coating substrates, for preparing dispersions and emulsions, for producing films and pigments and optical components, printed or coated substrates, dispersions and emulsions, films and pigments of this type.