A method of manufacturing an insulated flat long-length second-generation HTS wire by preparation of an electrodeposition emulsion, stirring the mixture for a time necessary for the neutralization reaction between the polyimide and the stabilizer to occur to form an intermediate solution, adding a precipitating agent to the intermediate solution while stirring; electrodeposition of the emulsion onto a HTS wire in a cathode cell while the HTS wire is moved through the cell containing the emulsion where the cathode is at a negative potential and the wire is at a positive potential; thermal treatment to form an insulating film on the wire surface by heating at a temperature not exceeding 200° C. A long-length HTS wire with a high-quality thin polyimide insulation coating of a high dielectric strength can be obtained, as well as an insulated HTS strand of a complex shape, e.g., of a Roebel type.

A method of manufacturing an insulated flat long-length second-generation HTS wire by preparation of an electrodeposition emulsion, stirring the mixture for a time necessary for the neutralization reaction between the polyimide and the stabilizer to occur to form an intermediate solution, adding a precipitating agent to the intermediate solution while stirring; electrodeposition of the emulsion onto a HTS wire in a cathode cell while the HTS wire is moved through the cell containing the emulsion where the cathode is at a negative potential and the wire is at a positive potential; thermal treatment to form an insulating film on the wire surface by heating at a temperature not exceeding 200 C. A long-length HTS wire with a high-quality thin polyimide insulation coating of a high dielectric strength can be obtained, as well as an insulated HTS strand of a complex shape, e.g., of a Roebel type.

A method of manufacturing an insulated flat long-length second-generation HTS wire by preparation of an electrodeposition emulsion, stirring the mixture for a time necessary for the neutralization reaction between the polyimide and the stabilizer to occur to form an intermediate solution, adding a precipitating agent to the intermediate solution while stirring; electrodeposition of the emulsion onto a HTS wire in a cathode cell while the HTS wire is moved through the cell containing the emulsion where the cathode is at a negative potential and the wire is at a positive potential; thermal treatment to form an insulating film on the wire surface by heating at a temperature not exceeding 200 C. A long-length HTS wire with a high-quality thin polyimide insulation coating of a high dielectric strength can be obtained, as well as an insulated HTS strand of a complex shape, e.g., of a Roebel type.

A resin for forming an insulating film includes at least one of a modified polyamide-imide having a terminal OH group or a terminal SH group and a modified polyimide having a terminal OH group or a terminal SH group. A varnish includes the resin for forming an insulating film and a solvent. An electrodeposition dispersion includes the resin for forming an insulating film, a polar solvent, water, a poor solvent, and a base. A method for producing an insulated conductor includes: a step of applying the varnish or electrodepositing the electrodeposition dispersion to a surface of a conductor to form a coating layer or an electrodeposition layer on the surface of the conductor; and a step of heating the coating layer or the electrodeposition layer to produce an insulating film and bake the insulating film on the conductor.

A water-based electrodeposition dispersion for forming an insulating film contains polymer particles, an organic solvent, a basic compound, and water, the polymer particles are made of polyamide-imide, and the basic compound is a nitrogen-containing compound in which the HSP distance from water is 35 or greater.

A method of applying at least one coating of at least one electrically insulating polymer to an applicator for currents, especially HF currents in surgery, the coating is produced by electrophoretic deposition from a suspension of the polymer in at least one organic solvent, wherein the applicators thus coated are especially clamps, pairs of tweezers or pairs of scissors which are used in the bipolar application technique of HF surgery. Polymers used are especially thermoplastic polymers, such as thermoplastic fluoropolymers, and more particularly polychlorotrifluoroethylene (PCTFE) or ethylene chlorotrifluoroethylene (ECTFE).

A water-dispersed electrodeposition solution (11) for forming an insulating film includes: polymer particles; an organic solvent; a basic compound; and water. The polymer particles are made of: any one of; or both of polyamide-imide and polyester-imide, main chains thereof being free of an anionic group, a number-based median diameter D.sub.50 of the polymer particles is 0.05 m to 0.5 m, and polymer particles having a particle size within 30% to +30% of the number-based median diameter D.sub.50 are 50% or more of all of the polymer particles on a number basis.

A polymer-based substrate is proposed, which in particular is electrostatically coatable, wherein the substrate comprises a substrate base body made using a polymeric material and a coating applied to a surface region of the substrate base body, wherein the polymeric material comprises a first polymer, wherein the coating comprises a matrix polymer and an additive which is dispersed in the matrix polymer and reduces the surface resistance of the coating, said additive having a proportion that is selected such that the specific surface resistance of the coating is about 10.sup.10 Ohm or less, and wherein the matrix polymer is selected such that it is compatible with the first polymer.

This insulated flat conductive wire includes: a flat conductive wire having an aspect ratio a/b of 12 or more, wherein the aspect ratio is a ratio of a length a of a long side of a rectangular cross-section to a length b of a short side thereof; and an insulating film which consists of a polyamide-imide resin or a polyimide resin and coats the flat conductive wire, wherein the insulating film has a film thickness t1 of 10 m or more at a center portion of the long side of the rectangular cross-section, and the insulating film has a film thickness ratio t1/t2 of 0.80 to 1.35, and wherein the film thickness ratio t1/t2 is a ratio of the film thickness t1 at the center portion of the long side to a film thickness t2 at an edge portion of the long side of the rectangular cross-section.

Self-healing polymers used to fabricate electrical devices or to coat electrical devices that have a metal or polymer substrate. The self-healing polymers can be made from modified polymers including polyurethanes, polyureas, polyamides and polyesters and, optionally, cross-linking agents and one or more catalysts. The self-healing polymers can be used to make cable ties, tape, conduit fittings and explosion-proof sealant materials.