摘要:
The present invention provides means for forming an oxide film on a metal surface, means for repairing a defect of an oxide film, a high-performance electrolytic capacitor using the means, and an electrolyte of the capacitor. Namely, the prevent invention provides a method for easily forming an oxide film on the surface of a metal or an alloy thereof by anodization using a solution containing an ionic liquid. In an application of this method, an electrolytic capacitor having means for repairing a defect of an oxide film can be formed by a method using, as an electrolyte, an ionic liquid, a solution containing an ionic liquid and a salt, or a solution containing an ionic liquid and a conductive polymer or a TCNQ salt, and a valve metal or an alloy thereof as a metal.
摘要:
The present invention provides means for forming an oxide film on a metal surface, means for repairing a defect of an oxide film, a high-performance electrolytic capacitor using the means, and an electrolyte of the capacitor. Namely, the prevent invention provides a method for easily forming an oxide film on the surface of a metal or an alloy thereof by anodization using a solution containing an ionic liquid. In an application of this method, an electrolytic capacitor having means for repairing a defect of an oxide film can be formed by a method using, as an electrolyte, an ionic liquid, a solution containing an ionic liquid and a salt, or a solution containing an ionic liquid and a conductive polymer or a TCNQ salt, and a valve metal or an alloy thereof as a metal.
摘要:
The present invention provides a method for easily producing a high-molecular weight polyimide resin at high yield by drying and heating a mixture mixed by material monomers of polyimide.
摘要:
This invention relates to heat-resistant polyimide blends and laminates thereof, which have excellent heat and moisture resistance, and excellent mechanical properties, including outstanding toughness. The blends contain a thermoplastic polyimide component and a thermosetting imide oligomer. The weight ratio of the thermoplastic component to thermosetting component is selected in the range of 99/1 to 5/95. The thermoplastic polyimide component has a number average molecular weight of 10,000 or more.
摘要:
Thermosetting esterimide oligomers of formulas (IA) and (IB) are disclosed: ##STR1## where A.sub.1, A.sub.2 and A.sub.4 are divalent organic groups, A.sub.3 is a monovalent organic group and A.sub.1, A.sub.2, A.sub.3 and A.sub.4 may be the same or different, with m being an integer of 1-30. The above compounds provide hard substances having excellent workability, heat resistance and mechanical properties.
摘要:
An ionic liquid formed of a cationic component and an anionic component characterized in that the cationic component contains fluorine atoms. When defects of an oxide film formed on the surface of a metal are anodized by a two-electrode system under existence of the ionic liquid, a current-voltage curve being obtained by applying a forward voltage from 0 V at a constant voltage rate of 1 V/s has an initial peak voltage and gives a withstand voltage of 50 V or above. This ionic liquid does not evaporate easily, exhibits hydrophobicity and low hygroscopicity, and has excellent metal oxide film-repairing ability.
摘要翻译:由阳离子组分和阴离子组分形成的离子液体,其特征在于阳离子组分含氟原子。 当在离子液体存在的情况下,通过双电极系统在金属表面上形成的氧化物膜的缺陷进行阳极氧化时,通过以恒定的电压速率1施加0V的正向电压来获得电流 - 电压曲线 V / s具有初始峰值电压,并提供50 V或更高的耐压。 该离子液体不易挥发,疏水性低,吸湿性低,具有优异的金属氧化物修复能力。
摘要:
A method is described for manufacturing a conductive polymer electrolytic capacitor. The method includes a step of aging a capacitor element including an electrolyte containing a conductive polymer and an ionic liquid by applying an aging voltage y (V) to the capacitor element to satisfy the following formula (1) or the following formula (2). In the following formulae (1) and (2), x represents a forming voltage for a valve metal. An electrolytic capacitor having a high withstand voltage is implemented by this method. 0.5x≦y≦x(0
摘要:
The invention relates to a vent plug for a tire vulcanization mold used for a vent hole of the mold, the tire vulcanization mold, and a manufacturing method for the tire using the mold. The vent plug includes a plug holder with a hollow ventilation portion and a plug head within the ventilation portion. The plug holder includes a tapered seat portion, an inside diameter of which becomes smaller toward a mold rear side, and a cylinder portion located at the mold rear side of the seat portion. The plug head includes a tapered head portion, an outer diameter of which becomes smaller toward the mold rear side, a base body portion located at the mold rear side of the head portion, and a slit portion communicating with the ventilation portion from an upper end face of the plug head.
摘要:
An ionic liquid formed of a cationic component and an anionic component characterized in that the cationic component contains fluorine atoms. When defects of an oxide film formed on the surface of a metal are anodized by a two-electrode system under existence of the ionic liquid, a current-voltage curve being obtained by applying a forward voltage from 0 V at a constant voltage rate of 1 V/s has an initial peak voltage and gives a withstand voltage of 50 V or above. This ionic liquid does not evaporate easily, exhibits hydrophobicity and low hygroscopicity, and has excellent metal oxide film-repairing ability.
摘要翻译:由阳离子组分和阴离子组分形成的离子液体,其特征在于阳离子组分含氟原子。 当在离子液体存在的情况下,通过双电极系统在金属表面上形成的氧化物膜的缺陷进行阳极氧化时,通过以恒定的电压速率1施加0V的正向电压来获得电流 - 电压曲线 V / s具有初始峰值电压,并提供50 V或更高的耐压。 该离子液体不易挥发,疏水性低,吸湿性低,具有优异的金属氧化物修复能力。
摘要:
A process for producing a flexible printed circuit board comprising a metallic foil and a polyimide is provided, which comprises coating a metallic foil with a resin solution prepared by adding a tertiary amino compound to a solution of a polyamic acid (a polyimide precursor) represented by the following general formula (I): ##STR1## followed by the imidization thereof, the amount of said tertiary amino compound added to the solution being 10 to 50 parts by weight per 100 parts by weight of solid polyamic acid contained in said resin solution. According to the present invention, a flexible printed circuit board which is free from curling, wrinkling and warping, and which has excellent heat resistance, electrical characteristics and mechanical properties is provided with a simplified production process.