H01B3/00

Capacitor with multiple dielectric layers having dielectric powder and polyimide

A capacitor is provided. The capacitor includes a first electrode layer and a second electrode layer; and a first dielectric layer and a second dielectric layer, wherein the first dielectric layer and the second dielectric layer are disposed between the first electrode layer and the second electrode layer. The first dielectric layer includes a first dielectric powder and a first organic resin, and the second dielectric layer includes a second dielectric powder and a second organic resin. In particular, the weight ratio of the first dielectric powder to the first organic resin is greater than the weight ratio of the second dielectric powder to the second organic resin.

METHOD FOR MANUFACTURING DIELECTRIC LAYER, RESIN COMPOSITION, AND LAMINATE COMPRISING DIELECTRIC LAYER
20230420156 · 2023-12-28 · ·

A manufacturing method for manufacturing a dielectric layer included in a reflective electromagnetic wave absorber, the method including the steps of: preparing a resin composition containing at least one dielectric compound and a resin component, and having a relative permittivity higher than 10.0 at a frequency of 3.7 GHz or 90 GHz; and forming a dielectric layer made from this resin composition and having a thickness of 20 to 7000 m. A resin composition according to the present disclosure is used to form a dielectric layer included in a reflective electromagnetic wave absorber, the resin composition containing at least one dielectric compound and a resin component, and having a relative permittivity higher than 10.0 at a frequency of 3.7 GHz or 90 GHz.

Composite conductors including radiative and/or hard coatings and methods of manufacture thereof

An apparatus includes a strength member including a core formed of a composite material, and an encapsulation layer disposed around the core. A conductor layer is disposed around the strength member. A coating is disposed on the conductor layer. The coating is formulated to have a solar absorptivity of less than 0.5 at a wavelength of less than 2.5 microns, and a radiative emissivity of greater than 0.5 at a wavelength in a range of 2.5 microns to 15 microns, at an operating temperature in a range of 60 degrees Celsius to 250 degrees Celsius. The coating may have an erosion resistance that is at least 5% greater than an erosion resistance of aluminum or aluminum alloys.

Epoxy stabilization using metal nanoparticles and nitrogen-containing catalysts, and methods

The present disclosure provides a curable, one-part epoxy/thiol resin composition. The composition comprises an epoxy/thiol resin mixture including: an epoxy resin component including an epoxy resin having at least two epoxide groups per molecule, a thiol component including a polythiol compound having at least two primary thiol groups, and a nitrogen-containing catalyst for the epoxy resin. The epoxy/thiol resin mixture further includes metal nanoparticles (e.g., silver nanoparticles, copper nanoparticles, or both), dispersed in the epoxy/thiol resin mixture. The present disclosure provides a method of curing a curable, one-part epoxy/thiol resin composition, including providing a curable, one-part epoxy/thiol resin composition and heating the composition to a temperature of at least 50 C.

Pinching sensor and detection device
11054285 · 2021-07-06 · ·

A detection device has a pinching sensor and a detecting unit. The pinching sensor has a dielectric layer in which a linear conductor layer is formed, and conductor layers arranged on top and bottom surfaces of the dielectric layer, a slit being formed on at least one of the conductor layers arranged on the top and bottom surfaces. The detecting unit supplies a high-frequency signal to an input portion of the linear conductor layer, generates an electric field around a slit portion of the conductor layer on which the slit is formed, and detects a change in a reflection coefficient at the input portion, the change being caused by a change of the electric field generated by interference with a detected object.

Crosslinked polymer composition for cable accessories

A crosslinked polymer composition based on a plastomer, which is suitable for producing at least one layer of cable accessories like cable joints, bushings or terminations; its use for preparing such a layer and the cable accessory comprising the composition.

Dielectric composites, and multi-layered capacitors and electronic devices comprising thereof

A dielectric composite includes: at least one first dielectric material represented by Chemical Formula 1, and at least one second dielectric material represented by Chemical Formula 2, wherein the first dielectric material has at least one first crystal structure and the second dielectric material has a second crystal structure that is different from the first crystal structure, and the first dielectric material and the second dielectric material are agglomerated with each other,
A.sup.11.sub.1-xA.sup.12.sub.xB.sup.1.sub.2O.sub.6Chemical Formula 1
A.sup.21.sub.2(1-y)A.sup.22.sub.2yB.sup.2.sub.2O.sub.7.Chemical Formula 2

METHODS AND SYSTEMS FOR DISTRIBUTED TEMPERATURE AND PRESSURE SENSING COMPRISING A POLYMER FIBER
20200386939 · 2020-12-10 ·

In one aspect, the disclosure relates to multi-material fibers capable of distributedly measuring temperature and pressure in which the methods comprise a thermal drawing step, and the methods of fabricating the disclosed fibers. The fibers can be utilized in methods of temperature and pressure mapping or sensing comprising electrical reflectometry for interrogation. Further disclosed are devices comprising a disclosed fiber with the multi-point detection capability with simple one-end connection. Also disclosed are articles, e.g., smart clothing, wound dressing, robotic skin and other industrial products, comprising a disclosed fiber or a fabric comprising a disclosed fiber. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Corona shielding system and electrical machine

The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system, especially for an electrical machine, e.g., a high-voltage machine, such as a generator for generation of electrical energy, an electric motor, or another piece of electrical equipment having a relatively high rated voltage, e.g., a transformer or a bushing or a cable. A corona shielding system may include: a polymeric matrix; and filler particles comprising mica surrounded by a layer of at least one ceramic metal oxide. The filler particles may be distributed throughout the polymeric matrix.

RESIN COMPOSITION, COPPER FOIL WITH RESIN, DIELECTRIC LAYER, COPPER-CLAD LAMINATE, CAPACITOR ELEMENT, AND PRINTED WIRING BOARD WITH BUILT-IN CAPACITOR

A resin composition for use in a dielectric layer of a capacitor is provided that can control a decrease in capacitance or dielectric constant at high temperature and ensure high dielectric characteristics and high adhesion of the composition to a circuit. The resin composition contains a resin component containing an epoxy resin, a diamine compound, and a polyimide resin; and a dielectric filler composed of a metal oxide containing at least two elements selected from the group consisting of Ba, Ti, Sr, Pb, Zr, La, Ta, and Bi. The content of the dielectric filler is 60 to 85 parts by weight on the basis of 100 parts by weight of solid content in the resin composition.