C08K2201/01

Method, system and paint for EMI suppression

A method, system and paint for suppressing emission of high frequency electromagnetic radiation from an electronic system, the electronic system including at least one power supply unit, at least one printed circuit board (PCB) and at least one integrated circuit are provided. The method includes providing an electrically conductive housing configured to accommodate and encase the electronic system, the housing having an inner conductive surface, and applying a layer of an electromagnetic absorbing paint to the inner conductive surface of the housing to substantially cover the inner surface by the layer, the electromagnetic absorbing paint comprises a liquid matrix and an electromagnetic absorbing material.

Magneto-dielectric materials, methods of making, and uses thereof
11574752 · 2023-02-07 · ·

A magnetic fiber comprises a core comprising a spinel ferrite of formula Me.sub.1-xM.sub.xFe.sub.yO.sub.4, wherein Me is Mg, Mn, Fe, Co, Ni, Cu, Zn, or a combination thereof, x=0 to 0.25, and y=1.5 to 2.5, wherein the core is solid or at least partially hollow; and a shell at least partially surrounding the core, and comprising a Me.sub.1-xM.sub.xFe.sub.y alloy, wherein when the core is solid with Me=Ni and x=0 the magnetic fiber has a diameter of greater than 0.3 micrometer. A magneto-dielectric material having a magnetic loss tangent of less than or equal to 0.03 at 1 GHz comprises a polymer matrix; and a plurality of the magnetic fibers.

Ceramic coated iron particles and methods for making ceramic coated particles

The present disclosure provides a coated iron particle, or reaction product of a coating and the iron particle, comprising an iron particle and a ceramic coating disposed on the iron particle. Aspects of the present disclosure provide a coated iron particle, or reaction product of a coating and the iron particle, including an iron particle having a diameter of from about 0.5 micron to about 100 microns; and a ceramic coating disposed on the iron particle. Aspects of the present disclosure further provide compositions comprising a coated iron particle and a polymer or adhesion promoter. Aspects of the present disclosure further provide components, such as components, such as vehicle components, having a surface and a composition of the present disclosure disposed on the surface.

Magnetorheological elastomer and magnetorheological fluid for clinical wrap
11484440 · 2022-11-01 · ·

A reinforcing clinical wrap is provided with integral thermal management. The clinical wrap includes a fluid circuit for a heat transfer medium to circulate between a fluid inlet and a fluid outlet. A shape conforming medium is disposed within a portion of the clinical wrap providing selective reinforcement support of the portion of the clinical wrap to conform to a surface of a patient. Non-limiting examples of the shape conforming medium may include a magnetorheological elastomer, a magnetorheological elastomer, a magnetorheological foam, a UV curable resin, and a phase change material.

Elastic body, bump stop, electromagnetic induction device, power generation system, detection device, and production method for elastic body

An elastic body of this disclosure contains magnetized magnetic powder dispersed in an elastic member, and generates an induced current in a circuit by undergoing an elastic deformation to cause a change in magnetic flux density. The elastic member is an elastomeric foam.

SLURRY COMPOSITION
20230084330 · 2023-03-16 · ·

The present invention provides a slurry composition in which magnetic material powder has excellent dispersibility and excellent dispersion stability and which enables production of a sheet having high surface smoothness and high adhesiveness to substrates. Provided is a slurry composition containing: a polyvinyl acetal resin; magnetic material powder; and a Na ion, the slurry composition having a Na ion content of 1,000 to 3,000 μg/g relative to the polyvinyl acetal resin.

Broadband wireline cable

A wireline cable, method, and system for broadband communications and data transfer. The wireline cable comprises insulated conductors, arranged such that circumferentially spaced conductors surround a central conductor. One or more of the conductors is insulated with a magnetic permeable insulation configured to reduce electrical interference with an adjacent conductor.

MAGNETIC RESIN COMPOSITION, CURED PRODUCT, AND ELECTRONIC COMPONENT
20230078286 · 2023-03-16 · ·

Provided are a magnetic resin composition including magnetic particles and an epoxy resin having an epoxy equivalent of 400 g/eq or more, in which a filling rate of the magnetic particles is 70% or more on an area basis; a cured product obtained by curing the magnetic resin composition; and an electronic component including the cured product.

Adhesive film for semiconductor
11479699 · 2022-10-25 · ·

The present invention relates to an adhesive film for a semiconductor, including: a first layer including an adhesive binder and a heat-dissipating filler; and a second layer including an adhesive binder and a magnetic filler, which is formed on at least one surface of the first layer, wherein the adhesive film has a predetermined composition for the adhesive binder included in each of the first layer and the second layer.

SPRAY FOAM ELECTROMAGNETIC INTERFERENCE ABSORBER

A method, a device, and a composition are disclosed. The method includes providing a polyol blend that includes a polyol resin and an electromagnetic (EMA) additive, providing an isocyanate resin selected such that blending the isocyanate resin with the polyol blend results in an EMA spray foam. The device includes a first compartment containing an isocyanate resin and a second compartment containing a polyol blend, which includes a polyol resin and an EMA additive. The composition includes a polyurethane spray foam and an EMA additive blended into the polyurethane spray foam.