Resumen de: US2023064831A1

Described herein are methods for forming resistive heaters and force sensing elements on a flexible substrate, and devices that include these elements to provide a force responsive conductive heater, such as a seat heater in a vehicle. The methods include printing a conductive ink on a flexible substrate that is heated to 30° C. to 90° C. before and/or during the printing process and curing the substrate to produce a conductive pattern thereon. The conductive inks generally include a particle-free metal-complex composition formulated from at least one metal complex and a solvent, and optionally, a conductive filler material.

Resumen de: WO2023026321A1

The present invention relates to a metallic-fine-particle-containing ink containing metallic fine particles A dispersed in a polymer B, a carboxylic acid C, an amine D, and a solvent E, wherein: the polymer B is a vinyl polymer containing structural units derived from a monomer (b-1) having a carboxy group and structural units derived from a monomer (b-2) having a polyoxyalkylene group; the carboxylic acid C is at least one selected from formic acid, lactic acid, pyruvic acid, and glyoxylic acid; the amine D is a C2-C6 amine; the solvent E is at least one selected from C1-C4 primary alcohols and C3-C4 ketones; the molar ratio [amine D/carboxylic acid C] of the amine D to the carboxylic acid C is 0.2-40 (inclusive); and the amine D content is 0.5-40% (inclusive) by mass. The present invention also relates to a method for producing a printed work using said ink.

Resumen de: KR20230028640A

본 발명의 일 실시예에 따르면, 구리를 포함하는 코어와 상기 코어를 커버하는 그래핀 쉘을 갖는 구리-그래핀 복합체; 적어도 1종 이상의 에폭시 화합물; 아민계 경화제; 및 산무수물 경화제를 포함하는, 구리-그래핀 복합체 잉크가 제공된다.

Resumen de: WO2018169012A1

The present invention forms a conductive pattern which exhibits low resistance on a substrate, and also exhibits high dispersion stability. A dispersion (1) including a copper oxide (2), a dispersion agent (3), and a reducing agent, wherein the reducing agent content falls within the range specified by formula (1), and the dispersion agent content falls within the range specified by formula (2). (1): 0.0001≤(reducing agent mass/copper oxide mass)≤0.10. (2): 0.0050≤(dispersion agent mass/copper oxide mass)≤0.30. Copper sintering is accelerated by promoting the reduction of copper oxide to copper during firing by inclusion of the reducing agent.

Resumen de: EP4129822A1

The present disclosure provides methods of coating a substrate. A method includes depositing a conductive coating including an electrically conductive material over the substrate to form a conductive layer having a sheet resistivity of about 10 Ω/□ to about 1000 Ω/□. The method includes depositing an anti-icing layer comprising nanomaterials over the conductive layer to form a coating system.

Resumen de: US2023056933A1

Disclosed is a conductive ink composition and a manufacturing method thereof. The composition includes about 50 to about 99 wt % copper nanoparticles and about 1 to about 50 wt % tin. Copper nanoparticles are atomized and suspended in a tin bath, wherein the copper nanoparticles are evenly dispersed within the bath through sonification. The composition is cooled, extracted, and formed into a filament for use as a conductive ink. The ink has a resistivity of about 46.2×E-9 Ω*m to about 742.5×E-9 Ω*m. Once in filament form, the tin-copper mix will be viable for material extrusion, thus allowing for a lower cost, electrically conductive traces to be used in additive manufacturing.

Resumen de: US2023054844A1

An ink composition according to an embodiment of the present invention, comprising: a volatile solvent; and dispersed in the volatile solvent, a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands, wherein a ratio by mass of the semiconductor nanoparticles to the volatile solvent is greater than 1:1. A product according to an embodiment of the present invention comprising: a solid substrate; and arranged on the solid substrate, a dried residue of an ink composition, the dried residue comprising a plurality of semiconductor nanoparticles arranged without an intervening polymer matrix, wherein the a plurality of semiconductor nanoparticles each coordinated to a plurality of organic ligands.

Resumen de: WO2023022064A1

Provided are: a carbon nanotube dispersion, a conductive paste, and a secondary battery electrode paste that are ideal for production of secondary batteries, e.g., lithium ion batteries, and the like; a secondary battery electrode; and a secondary battery.　This carbon nanotube dispersion is characterized by including at least carbon nanotubes, a water-soluble polymer material, and a dispersion medium. The carbon nanotube dispersion is also characterized in that, when X is the median diameter of the carbon nanotubes as measured by dynamic light scattering and a is the dispersion limit median diameter, 1.0

Resumen de: WO2023022073A1

Provided are a carbon nanotube dispersion that is suitable for manufacturing secondary batteries such as a lithium-ion battery, a conductive paste, an electrode paste for a secondary battery, an electrode for a secondary battery, and a secondary battery.　The carbon nanotube dispersion according to a first disclosure includes at least carbon nanotubes, a water-soluble polymeric material, and a dispersion medium, and is characterized in that, in a XYZ colorimetric system of a dry film made by applying the dispersion with a carbon nanotube concentration adjusted to 2 mass% using an applicator having a gap of 50 μm, Y is 6.0 or less. The carbon nanotube dispersion according to a second disclosure is characterized in that, in a L*a*b* color space of a dry film made by applying the dispersion with a carbon nanotube concentration adjusted to 2 mass% using an applicator having a gap of 50 μm, a* and b* are both negative.

Resumen de: US2023057908A1

A composition includes at least one type of conductive or semiconductive nanostructures, wherein at least one conductive ligand is arranged on the surface of the nanostructures, and at least one solvent, wherein the ligand has at least one group by which functionalization is possible. This makes it possible in simple fashion to obtain functionalizable conductive structures, in particular by inkjet processes.

Resumen de: US2023057712A1

A metal fine particle-containing ink that contains metal fine particles dispersed therein with a polymer dispersant, a low-molecular weight carboxylic acid and an aqueous solvent, wherein the polymer dispersant contains a constitutional unit derived from an acid group-containing monomer; a content of the low-molecular weight carboxylic acid C in the ink is not less than 1% by mass and not more than 15% by mass. A boiling point (C) of the low-molecular weight carboxylic acid and a boiling point (D) of the aqueous solvent satisfy the following relational formula (I); and an acid dissociation exponent pKa (C) of the low-molecular weight carboxylic acid and an acid dissociation exponent pKa (B) of an acid group in the polymer dispersant satisfy the following relational formula (II):boiling point (C)>boiling point (D)   (I), andpKa (C)

Resumen de: US2023055880A1

Systems and methods are disclosed for detecting a crack in an automotive windshield and alerting a user of the same. This can allow the user to repair the crack before the user might otherwise detect the crack by his/her own visual inspection. The windshield can be provided with emitters configured to emit signals (e.g., sound, light, etc.) and corresponding detectors configured to detect the emitted signals. Signal profiles or signatures can be stored that represent normal measurements when there is no crack. Upon detecting a signal signature that deviates from the stored normal signal signatures, the system can notify the user of a potential crack in the windshield. The system can also determine the location of the crack based upon which of the detectors detect a change in the detected signal.

Resumen de: US2023054723A1

An ink composition for continuous deflected ink jet printing, liquid at ambient temperature is disclosed. One aspect is an ink composition comprising: a solvent including organic solvent compound(s), and optionally water, the solvent representing at least 20 % by weight of the total weight of the ink. Furthermore, there is at least one compound imparting conductivity to the ink composition, chosen from among the ionic liquids, the compound representing 0.2 % by weight to 4 % by weight of the total weight of the ink composition, preferably 0.5 to 3 % by weight of the total weight of the ink composition. Lastly, the ink composition includes less than 10 % by weight, preferably less than 5 % by weight, more preferably less than 1 % by weight, and most preferably 0 % by weight of water relative to the total weight of the ink composition.

Resumen de: US2023053799A1

Carbon nanotube (CNT) ink includes a CNT, a rheological modifier for controlling a flow of the CNT, and a solvent. The CNT ink exhibits a liquid-like behavior under shear stress of 10−1 to 10 Pa. A loss modulus of the CNT ink may have a larger value than that of storage modulus under shear stress of 10−1 to 10 Pa. A content of the CNT may be 1 to 20 wt %. A content of the rheological modifier in the CNT ink may be 5 to 40 wt %. A weight ratio of the content of the CNT and the content of the rheological modifier in the CNT ink may be 1:1 to 1:5. The solvent may have a boiling point of 100° C. or less.

Resumen de: US2023057214A1

The present disclosure provides methods of coating a substrate. A method includes depositing a conductive coating including an electrically conductive material over the substrate to form a conductive layer having a sheet resistivity of about 10 Ω/□ to about 1000 Ω/□. The method includes depositing an anti-icing layer comprising nanomaterials over the conductive layer to form a coating system.

Resumen de: US2023059457A1

The present invention is directed towards an electrodepositable coating composition comprising, consisting essentially of, or consisting of an ionic salt group-containing silicone-based main film-forming polymer comprising functional groups; and a curing agent reactive with the functional groups of the ionic salt group-containing silicone-based main film-forming polymer. Also disclosed are coatings, coated substrates, and methods of coating a substrate.

Resumen de: EP4138096A1

The present disclosure provides a copper nanoparticle paste suitable for high-precision direct-writing 3D printing, and preparation and application thereof. A triaryl phosphine compound or trialkyl phosphine compound is adopted as a copper powder protective agent, and copper nanoparticles are prepared into oil-soluble paste containing epoxy resin; and thus, the problem that the copper nanoparticle paste is prone to be oxidized in preparation and storage processes is solved, and the electrical conductivity of the copper nanoparticle paste is improved, to ensure that the copper nanoparticle paste is suitable for the high-precision direct-writing 3D printing.

Resumen de: GB2610050A

An electronically pure carbon nanotube thin film, includes a population of semiconducting carbon nanotubes being essentially free of metallic impurities and organic material, and characterized in that when incorporated as a carbon nanotube network in a metal/carbon nanotube network/metal double diode, a nonlinear current-bias curve is obtained on application of a potential from 0.01 V to 5 V. Preferably at least 99.9% of the carbon nanotubes are semi-conducting, most preferably 99.99%. In a preferred embodiment, the carbon nanotubes are of a single chirality, most preferably (6,5). The CNTs may have dimensions of 0.69-0.71 nm diameter and 500 nm - 500µm in length. The thin films may be used to make n-type or p-type transistors with drain/source conducting electrodes, a dielectric insulating gate layer and a conducting gate electrode. Preferably the dielectric layer comprises amorphous silicon nitride.

Resumen de: US2021317326A1

An ink composition is provided. The composition includes a binder material and at least one narrow band emission phosphor being uniformly dispersed throughout the composition, wherein the narrow band emission phosphor has a D50 particle size from about 0.1 μm to about 15 μm and is selected from the group consisting of a green-emitting U6+-containing phosphor, a green-emitting Mn2+-containing phosphor, a red-emitting phosphor based on complex fluoride materials activated by Mn4+, and a mixture thereof. A device is also provided.