Abstract: Curable sol-gel composition useful for modifying the surface of a conventional electrical insulation system and providing said surface with an improved tracking and erosion resistance, wherein said sol-gel composition includes: (a) cyclo-aliphatic epoxy resin compound containing at least two 1,2-epoxy groups per molecule [component (a)]; (b) a glycidoxypropane-tri(C1-4)alkoxysilane [component (b)]; (c) a gamma-aminopropyl-tri(C1-4)alkoxysilane [component (c)]; (d) a mineral filler material [component (d)]; and (e) a hydrophobic compound [component (e)] or a mixture of such hydrophobic compounds being selected from fluorinated or chlorinated hydrocarbons or organopolysiloxanes.

Abstract: A three-phase dry distribution transformer adapted for mounting outdoors on a pad or to a utility pole. The distribution transformer includes one or more winding assemblies mounted to a ferromagnetic core. Each winding assembly includes a low voltage winding and a high voltage winding. In each winding assembly, an encasement comprised of an insulating resin encapsulates the low voltage and high voltage windings. The encasement includes a body and a pair of high voltage bushings and a pair of low voltage bushing.

Abstract: A surface modified electrical insulation system having a super hydrophobic surface, the insulation system having a hardened or cured synthetic polymer composition which contains at least one filler material and optionally further additives. The at least one filler material can be selected from a group of filler materials containing inorganic oxides, inorganic hydroxides and inorganic oxyhydroxides. The surface of the electrical insulation system can be formed as a structured surface with micro-scale and nano-scale features, whereby the surface is covered with a liquid hydrophobic compound.

Abstract: Polymer concrete electrical insulation including a hardened epoxy resin composition filled with an electrically non-conductive inorganic filler compositions. The polymer concrete electrical insulation system optionally may contain additives. The epoxy resin composition is based on a cycloaliphatic epoxy resin. The inorganic filler composition can be present within the range of about 76% by weight to about 86% by weight, calculated to the total weight of the polymer concrete electrical insulation system. The inorganic filler composition includes a uniform mixture of (i) an inorganic filler with an average grain size within the range of 1 micron (?m) to 100 micron (?m) [component c(i)], and (ii) an inorganic filler with an average grain size within the range of 0.1 mm (100 micron) to 2 mm [component c(ii)].

Abstract: Surface modified electrical insulation system including a hardened or cured synthetic polymer composition including at least one filler, wherein the surface of said synthetic polymer composition is modified by being coated with a thin coating. The thin coating is applied by a plasma enhanced chemical vapor deposition (PECVD) with a thickness within the range of about 50 nanometer to about 50 ?m; and/or a by a sol-gel technique with a thickness within the range of about 0.5 micron to about 1 mm. The thin coat is an electrically non-conductive polymeric material having a melting point which is distinctly higher than the melting point or degradation temperature of the synthetic filler containing polymer composition.

Abstract: A barrier film for packaging food or beverage comprises a polymer base film, and a barrier layer comprising an inorganic oxide applied onto the base film by vapour deposition. The inorganic oxide layer is further coated with a healing layer of a crosslinked organopolysiloxane which is covalently bound to the inorganic layer. Other aspects disclosed here involve a multilayer packaging laminate comprised of the barrier film, and a method of manufacturing the barrier film and packaging containers manufactured from the film.