The subject of the invention is a cable wrapping tape, in particular for wrapping cables in motor vehicles. The cable wrapping tape has a tape-like carrier and an adhesive coating on at least one side of the carrier. The carrier consists of a single woven layer. Moreover, the warp threads and weft threads of the carrier have different finenesses. The weft threads have a fineness of more than 200 dtex, while the weft threads have a fineness of 40 dtex to 100 dtex. According to the invention, the warp threads are formed with a high tensile strength and have a fineness-related highest tensile strength of more than 500 cN/dtex, in particular of more than 8 cN/dtex.

A separator for electrochemical elements includes beaten solvent-spun cellulose fibers and rayon fibers having a fiber diameter of 9.5 m or less. More preferably, the separator for electrochemical elements has a content of the rayon fibers relative to all fibers of 10 to 25% by mass, and can be applied to electrochemical elements such as electric double layer capacitors, hybrid capacitors, redox capacitors, and lithium secondary batteries. The separator can provide low internal short circuit failure rates and high surface strength.

A separator for electrochemical elements includes beaten solvent-spun cellulose fibers and rayon fibers having a fiber diameter of 9.5 m or less. More preferably, the separator for electrochemical elements has a content of the rayon fibers relative to all fibers of 10 to 25% by mass, and can be applied to electrochemical elements such as electric double layer capacitors, hybrid capacitors, redox capacitors, and lithium secondary batteries. The separator can provide low internal short circuit failure rates and high surface strength.

By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed.

By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed.

Various embodiments may include a solid insulation material, e.g. in tape form, the use thereof in a vacuum impregnation process, and/or an insulation system produced therewith and also an electrical machine having the insulation system, for the medium- and high-voltage sector. Some examples include rotating electrical machines in the medium- and high-voltage sector and also semifinished products for electrical switchgear. The solid insulation material and the insulation system produced therewith are characterized in that it can be produced in an anhydride-free manner, wherein the curing catalyst is, for example, an adduct of a 1H-imidazole and/or 1H-imidazole derivative with a compound containing oxirane groups.

To obtain an insulating resin material serving as a material achieving both an excellent low specific dielectric constant and an excellent low linear thermal expansion coefficient, which has heretofore been difficult to obtain, and a metal layer-equipped insulating resin material and a wiring substrate each using the insulating resin material, provided is an insulating resin material, including: porous inorganic aggregates each having pores defined by a plurality of fine particles; and fibrils formed of polytetrafluoroethylene, wherein the fibrils are each multidirectionally oriented, wherein at least one of the porous inorganic aggregates and the fibrils are connected to each other, and wherein the insulating resin material is formed of a micro network structure having a porosity of 50% or more.

To obtain an insulating resin material serving as a material achieving both an excellent low specific dielectric constant and an excellent low linear thermal expansion coefficient, which has heretofore been difficult to obtain, and a metal layer-equipped insulating resin material and a wiring substrate each using the insulating resin material, provided is an insulating resin material, including: porous inorganic aggregates each having pores defined by a plurality of fine particles; and fibrils formed of polytetrafluoroethylene, wherein the fibrils are each multidirectionally oriented, wherein at least one of the porous inorganic aggregates and the fibrils are connected to each other, and wherein the insulating resin material is formed of a micro network structure having a porosity of 50% or more.

A power cable includes an insulation layer, itself, having high dielectric strength. An electric field to be applied to the insulation layer is effectively buffered, degradation of the insulation layer can be prevented during a cable connection step such that the life of the power cable is extended and simultaneously, the thickness of the insulation layer is minimized such that an outer diameter of the cable is reduced, thereby enabling flexibility, ease of installation, workability and the like of the cable to be improved.

A power cable includes an insulation layer, itself, having high dielectric strength. An electric field to be applied to the insulation layer is effectively buffered, degradation of the insulation layer can be prevented during a cable connection step such that the life of the power cable is extended and simultaneously, the thickness of the insulation layer is minimized such that an outer diameter of the cable is reduced, thereby enabling flexibility, ease of installation, workability and the like of the cable to be improved.