Abstract:
The invention relates to a device for the electrolytic coating of at least one electrically conductive substrate (8) or a structured or full-surface electrically conductive surface on a nonconductive substrate (8), which comprises at least one bath, one anode and one cathode (1), 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 surface to be coated of the substrate and the substrate is transported through the bath. The cathode comprises at least one band (2) having at least one electrically conductive section (12), which is guided around at least two rotatable shafts (3). The invention furthermore relates to a method for the electrolytic coating of at least substrate, which is carried out in a device according to the invention, the band resting on the substrate for the coating and being circulated with a circulation speed which corresponds to the speed with which the substrate is guided through the bath. 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:
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 a connecting rod and piston pin assembly for an internal combustion engine to improve wear of the piston/connecting rod pivot point and reduce deformation of the pin bore. To this end, the assembly includes a piston having a pin bore, a connecting rod having a bore adapted to be aligned with the piston pin bore and piston pin interconnecting the piston and the connecting rod through engaging their respective bores. The piston pin has a profiled outer circumference that is substantially circular in cross-section with a larger diameter at the distal ends than at the center portion. One end of the connecting rod includes a phosphatized coating and is adapted to facilitate movement between the connecting rod bore and the profiled piston pin.
Abstract:
Disclosed are polymerizable liquid-crystalline compounds of the general formula (I) where A1 and A2 are identical or different and are each a crosslinkable group; the radicals X are identical or different and are each a single bond, —O—, —S—, —C═N—, —O—CO—, —CO—O—, —O—CO—O—, —CO—NR—, —NR—CO—, —NR—, —O—CO—NR, —NR—CO—O—, —CH2—O— or —NR—CO—NR, in which R is H or C1-C4-alkyl; and M is a mesogenic group, a process for their preparation and their use for preparing cholesteric phases.
Abstract:
The present invention relates to the use of polymerizable liquid-crystalline compounds for the production of optical elements having color- and polarization-selective reflection, and to optical elements comprising these compounds in monomeric or polymerized form.
Abstract:
The present invention relates to novel cholesteric layered materials having the layer sequence A1/B/A2, where A1 and A2 are identical or different and each comprise at least one cholesteric layer, and B is at least one interlayer separating the layers A1 and A2 from one another, wherein layer B is an adhesive layer; cholesteric multilayered pigments which can be produced therefrom; a process for their production, and their use.
Abstract translation:本发明涉及具有层序列A 1 / B / A 2的新型胆甾醇层状材料,其中A 1和A 2相同或不同,并且各自包含至少一个胆甾醇层,B 是将层A 1和A 2彼此分隔开的至少一个层,其中层B是粘合剂层; 可由其制造的胆甾型多层颜料; 它们的生产过程及其使用。
Abstract:
Process for preparing pigments by applying a polymerizable mixture to a surface, orienting the liquid crystals present in the mixture, polymerizing the mixture, detaching the polymer film from the surface and comminuting the polymer film to form pigment particles, wherein the polymerizable mixture comprises:a.sub.1) at least one chiral liquid-crystalline polymerizable monomer ora.sub.2) at least one achiral liquid-crystalline polymerizable monomer and a chiral compound, and additionallyb) a polymeric binder and/or monomeric compounds which are converted by polymerization into a polymeric binder and/or a dispersion auxiliary.
Abstract:
A polymeric material I is obtainable by reacting 1) a polymer II of a) from 80 to almost 100 mol % of a C.sub.1 -C.sub.25 -alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid, b) from 0 to 20 mol % of one or more further monomers and c) an initiator and/or regulator by means of which the majority of the polymer chains of the polymer II are terminated at one of their ends by a hydroxyl group, 2) with a polyfunctional nonaromatic isocyanate III to give a reaction product IV, the amount of isocyanate groups being from 1.2 to 3.9 mol per mole of the hydroxyl groups in II, 3) reacting IV with a) a compound V, containing groups reactive toward isocyanates, to give a reaction product VI, the amount of reactive groups being from 2 to 7 mol per mole of the free isocyanate groups still present in IV, and reacting VI with a compound VII to give the polymer I, which reacts with the reactive groups which are still free in VI and by means of which acidic groups are introduced into VI, or b) a compound VIII which contains groups reactive toward isocyanates and by means of which the acidic groups are introduced into IV, to give the polymer I. The polymeric materials can be used as dispersing resin for pigment-containing coatings, in particular for the production of magnetic recording materials.
Abstract:
Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon is based on a magnetic material dispersed in at least one polyureaurethane and a polyurethaneurea (meth)acrylate, the polyurethaneurea (meth)acrylate being obtained by reacting a polyacrylate with a mixture of di- and polyisocyanates and converting the remaining NCO groups into substituted urea groups with aminoalkyltrialkoxysilanes.
Abstract:
Magnetic recording media consisting of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon and is based on a magnetic material which essentially consists of ferromagnetic chromium dioxide and is finely dispersed in a polymer binder and further conventional additives are distinguished by a particular stability to the chemical decomposition due to moisture and oxidizable compounds and hence particular stability to the deterioration in the magnetic properties, as a result of the addition of from 0.1 to 8% by weight, based on the amount of chromium dioxide, of a monomeric, polyunsaturated, organic compound to the magnetic layer.