Abstract:
This invention is directed to a polymer thick film thermally conductive thermoformable dielectric composition comprising urethane resin, thermoplastic phenoxy resin, diacetone alcohol and thermally conductive powder. Dielectrics made from the composition can be used in various electronic applications to protect electrical elements and particularly to insulate and protect both the conductive thermoformable silver and the polycarbonate substrate in capacitive switch applications. The thermoformed electrical circuit may be subsequently subjected to an injection molding process.
Abstract:
A high-temperature insulation assembly for use in high-temperature electrical machines and a method for forming a high-temperature insulation assembly for insulating conducting material in a high-temperature electrical machine. The assembly includes a polymeric film and at least one ceramic coating disposed on the polymeric film. The polymeric film is disposed over conductive wiring or used as a conductor winding insulator for phase separation and slot liner.
Abstract:
An insulated wire includes a conductor, and an insulating covering layer formed on a periphery of the conductor and including two or more insulating coatings. The insulating coatings include a polyamide-imide resin insulating material represented by chemical formula 1: where R indicates a divalent aromatic diamine including three or more aromatic rings. The insulating coatings are formed by applying and baking the polyamide-imide resin insulating material, and the polyamide-imide resin insulating material is obtained by reacting an imide group containing dicarboxylic acid with a diisocyanate, the imide group containing dicarboxylic acid being obtained by dehydration reaction of a diamine comprising a divalent aromatic diamine including three or more aromatic rings with an acid using an azeotropic solvent.
Abstract:
The present invention relates to a multilayer strip (1) comprising at least: an essentially mica-based layer (3) and a polymeric layer (2) comprising 60 to 85% by weight of a mineral filler (4) and 15 to 40% by weight of a polymer.
Abstract:
A new cross linked polyolefin material combination that is designed to replace current high-density polyethylene (“HDPE”) materials for use with molded or over-molded electrical transmission products. Such molded or over-molded electrical transmission products include, for example, vise-top pin insulators, line post insulators, F-neck, C-neck, and J-neck pin insulators of classes ANSI 55-3, 55-4, and 55-5, Spacer cable spacers, Brackets, hangers, Line post sensors, cable restraint insulators, and transmission style insulators.
Abstract:
A modular enclosure, such as a shed, may include a floor constructed from one or more floor panels. The floor panels, which may be constructed from blow-molded plastic, may include a pattern disposed on the upper surface. The floor panels may also include depressions that are formed in the lower surface and extend towards the upper surface. If desired, the depressions may be generally aligned with a portion of the pattern in the upper surface and the depressions may have a length that is less than the distance separating the upper surface and the lower surface. Advantageously, the depressions may be sized and configured to increase the strength of the floor panels. In addition, the floor panels may include a pattern disposed on the lower surface and the depressions may be at least partially disposed in the pattern. The patterns on the opposing sides of the panels may be generally offset and/or have different orientations.
Abstract:
A resin-impregnated substrate is obtained by a method comprising the steps of immersing a sheet comprising an aromatic liquid crystalline polyester fiber in an aromatic liquid crystalline polyester solution containing 100 parts by weight of a solvent and 0.5 to 100 parts by weight of an aromatic liquid crystalline polyester and removing the solvent, the solvent containing on a weight basis with respect to the solvent 30% or more of a phenol compound. The resin-impregnated substrate has a high heat resistance in soldering conditions.
Abstract:
A dielectric film is provided which includes a base layer and a capping layer, preferably silicon oxynitride, wherein the film is an effective moisture and ion barrier when disposed between a conductive substrate and a liquid having an electrical potential different than the electrical potential of the substrate.
Abstract:
A composite insulation of S2 glass fibers and epoxy is formed having a more nearly uniform coefficient of thermal expansion in all three planes for use in cryogenic superconductor applications. The glass fibers have a three-dimensional weave.
Abstract:
Flame retarded organopolysiloxane gels suitable for sealing and protecting electrical contacts include (i) an organopolysiloxane gel having repeat units of the structure ##STR1## where each R is independently phenyl or C.sub.1 -C.sub.4 alkyl or fluoroalkyl, at least 40% of the R groups being phenyl; and (ii) an additive package mixed with the organopolysiloxane, which is (a) zinc oxide; (b) antimony oxide; (c) a brominated compound having a molecular weight of at least 450 and a bromine content of at least 40 weight %; (d) a chlorinated compound having a molecular weight of at least 300 and a chlorine content of at least 40 weight %; or (e) combinations of the above. The additive package is used in an amount between about 10 and about 60 parts by weight per 100 parts by weight of organopolysiloxane.