摘要:
An insulated wire including a conductor, and an insulating film formed by coating and baking an insulating varnish on the conductor directly or via another insulation layer. The insulating varnish includes a phenolic hydroxyl group-containing polyimide resin represented by a chemical formula (1): where X is a tetravalent aromatic group composing an aromatic tetracarboxylic dianhydride residue, Y1 is a divalent aromatic group including one or more phenolic hydroxyl groups and Y2 is a divalent aromatic group not including a phenolic hydroxyl group A ratio of the number Z1 of phenolic hydroxyl groups included in Y1 of the chemical formula (1) to the number Z2 of an imide group included in the chemical formula (1) is 0.15≦Z1/Z2≦0.85.
摘要:
A polyamide-imide resin insulating coating material includes an polyamic acid having a thermally crosslinkable reactive group, and an amide compound having a thermally crosslinkable reactive group. The polyamic acid includes an acid synthesized using at least a diamine component, a tetracarboxylic dianhydride and a cross-linking agent as raw materials. The cross-linking agent includes an amino group or an anhydride group and a thermally crosslinkable reactive group. The amide compound includes a compound synthesized using at least a carboxylic acid compound and a diisocyanate component as raw materials. The carboxylic acid compound includes a thermally crosslinkable reactive group that is crosslinkable with the cross-linking agent contained in the polyamic acid.
摘要:
An insulation coating for electric wires has a resin coating made from polyimide resin or polyamide-imide resin as a constituent resin, the insulation coating being formed by dispersing phenyl trialkoxysilane and pure water in the resin coating. The phenyl trialkoxysilane is included 3 to 100 parts by weight for the constituent resin of 100 parts by weight in the resin coating.
摘要:
A insulated wire includes a conductor, and an insulating coating on a periphery of the conductor. The insulating coating includes an insulating film formed by applying and baking a polyester imide resin insulating coating material, and the insulating film has a relative permittivity of less than 3.5 both in a dried state and in a moisture-absorbed state. The insulating film is formed by applying and baking a polyester imide resin insulating coating material including an imide dicarboxylic acid and an alcohol component, the imide dicarboxylic acid being obtained by synthesizing a diamine component including aromatic diamine having not less than three aromatic rings and an acid component including aromatic tricarboxylic acid anhydride.
摘要:
An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.
摘要:
An insulation-coated wire has a conductor, and a semiconductive layer provided at an outer periphery of the conductor, the semiconductive layer comprising a resin coating comprising metal fine particles dispersed in a base resin, in which an average particle diameter of the metal fine particles is not greater than 1 μm.
摘要:
According to the present invention, there is provided an insulation coating for electric wires comprising a resin coating made from polyimide resin or polyamide-imide resin as a constituent resin, the insulation coating being formed by dispersing phenyl trialkoxysilane and pure water in the resin coating; the phenyl trialkoxysilane is included 3 to 100 parts by weight for the constituent resin of 100 parts by weight in the resin coating.
摘要:
A varnish for a partial discharge resistant enameled wire includes an insulating varnish, and an organosol including an inorganic fine particle comprising a metal oxide fine particle or a silicon oxide fine particle. The organosol is dispersed in the insulating varnish. The inorganic fine particle includes a hollow portion therein.
摘要:
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.
摘要:
A hydrated water-absorption polymer containing resin composition includes a liquid cross-link curable resin composition, and a water-absorption polymer dispersed in the liquid cross-link curable resin composition. The water-absorption polymer is preliminarily hydrated and swollen. The water-absorption polymer before being hydrated and swollen includes an average particle diameter of not more than 10 μm. The water-absorption polymer includes an amount of water absorption of 10 to 100 g/g.