A polyimide composite film for use in a flexible metal clad substrate, comprising: a polyimide base material film; a fluorine polymer layer, formed on at least one surface of the polyimide base material film, comprising polyimide resins and fluorine polymers, wherein the polyimide resin accounts for 2 to 20 wt % of the total solid content of the fluorine polymer layer, the aromatic functional group ratio of the polyimide resin in the fluorine polymer layer is greater than 35%, and the absorption onset wavelength (λonset) of the ultraviolet-visible spectrum is greater than 360 nm; a thickness ratio of the polyimide base material film to one layer of the fluorine polymer layers is 8:1 to 1:4; and a total thickness of the polyimide composite film is between 18 and 175 microns. Thus, the polyimide composite film has a low dielectric constant, low loss factor, and has good drilling processability.

The invention provides a film having a high relative permittivity, a high volume resistivity, and a high breakdown strength. The film has a relative permittivity of 9 or higher at a frequency of 1 kHz and 30° C., a volume resistivity of 5E+15 Ω.Math.cm or higher at 30° C., and a breakdown strength of 500 V/μm or higher.

Provided is a packaging material for batteries, which has excellent insulating properties. A packaging material for batteries, which is formed of a laminate that is obtained by sequentially laminating at least a base layer, a bonding layer, a metal layer and a sealant layer, and wherein the base layer comprises a resin layer A that is formed of a thermoplastic resin having a volume resistivity of 1×10.sup.15 Ω.Math.cm or more.

A core insertion type spiral tube includes: a spiral metal tube having an empty space therein and an elastic core member positioned inside said spiral metal tube.

A display device and a manufacturing method of a display device are provided. A display device includes: a substrate; a semiconductor layer on the substrate; a source electrode and a drain electrode on the semiconductor layer; an auxiliary electrode on a same layer as the source electrode and the drain electrode; a first electrode electrically connected with the source electrode or the drain electrode; a light emitting element layer on the first electrode; and a second electrode on the light emitting element layer, and the auxiliary electrode includes at least one groove located inside the auxiliary electrode.

An information handling system, comprising: a voltage source; a thermally regulated structure, including: a thermal fabric layer, the thermal fabric layer having a porosity; a laminate layer coupled to the thermal fabric layer, wherein a shape of the laminate layer controls the porosity of the thermal fabric layer; a temperature sensor configured to detect a first temperature of the information handling system; a thermal management controller to perform operations comprising: determining that the first temperature is above a threshold; in response, calculating a voltage to apply to the thermally regulated structure based on the first temperature; and providing a command to the voltage source to apply the voltage to the laminate layer of the thermally regulated structure to adjust a shape of the laminate layer such the porosity of the thermal fabric provides an emissivity of the thermally regulated structure to thermally radiate heat from the thermally regulated structure.

To provide a piezoelectric film that is less likely to be electrified and that can be safely handled. A multilayered film according to an embodiment of the present invention including: a piezoelectric film containing polyvinylidene fluoride; and a protective film including an antistatic layer, the piezoelectric film and the protective film being bonded.

Embodiments of the disclosure relate to a glass article. The glass article includes a glass sheet having a first major surface and a second major surface. The second major surface is opposite to the first major surface. The glass article also includes a frame made of a plastic material. The plastic material has a coefficient of thermal expansion (a) having units of ppm/° C. The glass article further includes an adhesive bonding the second major surface of the glass sheet to the frame. The adhesive has a shear modulus (G) having units of MPa. The plastic material of the frame and the adhesive are selected such that G≤500,000 α.sup.−3.

An object of the present invention is to provide a piezoelectric polymer film having excellent piezoelectric characteristics. The object is achieved by providing a piezoelectric polymer film including a piezoelectric layer containing lead zirconate titanate particles in a matrix that contains a polymer material, and an electrode layer provided on each of both surfaces of the piezoelectric layer, in which a Raman shift of a maximum peak present in a range of 190 to 215 cm.sup.−1 in a Raman spectrum of the piezoelectric layer is 205 cm.sup.−1 or less.

A composite material, especially for use in a stator stack and/or rotor stack is disclosed. The composite material includes a first and a second electrical steel strip layer and a polymeric layer arranged in between, wherein the polymeric layer consists of a crosslinked acrylate-based copolymer of high molecular weight and has a layer thickness in the range from 3 to 20 μm.