Patent classifications
H01B3/426
Polycarbonates having superior dielectric properties suitable for energy dense capacitors
The present invention provides monomers, analogs, and/or derivatives of bisphenols substituted with one or more fluoromethyl groups. These monomers, analogs, and/or derivatives can be used to form oligomers and/or polymers, which in turn can be used to make compounds with dielectric properties suitable for dielectric materials, including for example, use in energy dense capacitors. In a preferred embodiment, the compounds can comprise a polycarbonate of a homopolymer, copolymer, and/or terpolymer of a bisphenol with one or more fluoromethyl substitution groups. In an aspect of the invention the compounds chosen can be selected based on various desired characteristics, including, for example, their energy density, glass transition temperature, dielectric loss, and/or dipole density.
Amorphous polycarbonate films for capacitors, methods of manufacture, and articles manufactured therefrom
A film comprising a copolycarbonate, wherein the film is a uniaxially-stretched, extruded film comprising at least one film region having: an average thickness of more than 0 and less than 14 micrometers with a standard deviation of 0.8 micrometer to 1.6 micrometers, a surface having a surface roughness average of less than 0.04 micrometer as measured by optical profilometry, a dielectric constant at 1 kHz and room temperature of at least 2.7, a dissipation factor at 1 kHz and room temperature of 1% or less, and a breakdown strength of at least 620 Volt/micrometer; and the copolycarbonate has a Tg of greater than 180 C. and comprises carbonate units derived from a bisphenol compound of the formula (3).
Transparent electroconductive film and touch sensor in which same is used
Provided are: a transparent electroconductive film with good transparency, wherein the transparent electroconductive film has antiblocking properties that can withstand roll-to-roll manufacturing, and white haze on the transparent electroconductive film side is reduced. Also provided is a touch sensor in which the transparent electroconductive film is used. This transparent electroconductive film includes a transparent substrate 1 and a transparent electroconductive film 13 formed on one side of the transparent substrate, wherein the arithmetic mean surface roughness Ra in a 452595 m field of view on the surface of the transparent electroconductive film 13 is greater than 0 nm and no more than 10 nm, and the arithmetic mean surface roughness Ra in a 452595 m field of view on the surface of the transparent substrate 1 on which the transparent electroconductive film 13 is not formed is greater than 5 nm and less than 100 nm.
Transparent conductive film
A transparent conductive film 1 includes, in this order, a transparent substrate 2, a first optical adjustment layer 4, an inorganic layer 5, and a transparent conductive layer 6. The first optical adjustment layer 4 has refractive index nC lower than refractive index nA of the transparent substrate 2, and thickness TC of 10 nm or more and 35 nm or less. The inorganic layer 5 has refractive index nD that is lower than the absolute value |nC1.13| of a value obtained by multiplying the refractive index nC of the first optical adjustment layer 4 by 1.13.
Thermoplastic Compositions Containing Nanoscale-Sized Particle Additives For Laser Direct Structuring and Methods For the Manufacture and use Thereof
This invention relates generally to a thermoplastic compositions and, more particularly, to compositions comprising a polymer matrix and comprising a filler composition. To that end, according to the aspects of the invention, a thermoplastic composition is disclosed that generally comprises a polymer matrix and at least one filler composition. The polymer matrix generally comprises at least one polycarbonate or polyamide. The filler composition generally comprises at least one laser direct structuring additive with a mean particle size of less than 1 m and may additionally optionally comprise flame retardants, stabilizers and process aids.
Plastic film having a high voltage breakdown
A stretched film includes a dispersion of at least one polyester and/or polycarbonate in a matrix of at least one polyester and/or polycarbonate different from the first polyester and/or polycarbonate, the percentage by weight of the dispersed polyester and/or polycarbonate in the dispersion being less than 50% and the dispersed polyester and/or polycarbonate being in the form of platelets. The stretched film can be used as a dielectric in a capacitor.
Transparent conductive film
A transparent conductive film 1 includes a transparent substrate 2; a first optical adjustment layer 4 disposed on one side in the thickness direction of the transparent substrate 2 and made of a resin layer; an inorganic substance layer 5 disposed on one side in the thickness direction of the first optical adjustment layer 4 so as to make contact with the first optical adjustment layer 4; and a transparent conductive layer 6 disposed on one side in the thickness direction of the inorganic substance layer 5. The inorganic substance layer 5 has a thickness of 10 nm or less, and the surface of the one side in the thickness direction of the transparent conductive layer 6 has a surface roughness of 1.40 nm or less.
CONDUCTIVE PLASTIC STRUCTURE
In one example, an electrically conductive structure includes an elongated substantially flat single piece of plastic permeated with conductive fibers including conductive fibers at a contact surface of the piece. The piece of plastic includes a bend that defines two contact surfaces angled with respect to one another near one end of the piece and a flexible stem between the two contact surfaces and the other end of the piece.
High modulus laser direct structuring polycarbonate composites with enhanced plating performance and broad laser window and methods for the manufacture and use thereof
The present disclosure relates to a polymer composition. The disclosed composition comprises a polycarbonate polymer, a laser direct structuring additive capable of being activated by electromagnetic radiation and thereby forming elemental metal nuclei, reinforcing filler, and a laser direct structuring synergist. Also disclosed is a method for making the disclosed polymer composition and an article of manufacture comprising the disclosed polymer composition.
Extruded capacitor films with high temperature performance, methods of manufacture, and articles containing the same
A composition includes 65.0-99.85 wt % of a high heat copolycarbonate, the high heat copolycarbonate further having a number ratio of carbon atoms to a total of hydrogen, oxygen, and fluorine atoms of less than 1.12, preferably from 0.83 to less than 1.12; 0.05-0.5 wt % of a first roughening agent; and 0.1-15.0 wt % of an organic slip agent, wherein the organic slip agent comprises pentaerythritol tetrastearate, dipentaerythritol hexastearate, glycerol tristearate, high density poly(ethylene), polymethylpentene, a poly(carbonate-siloxane), or a combination thereof; wherein each amount is based on the total weight of the composition and totals 100 wt %.