49 results about "Central layer" patented technology

A shoe or other footwear has a non-removable multi-layer foot-support member (FSM) embedded within the sole. The uppermost layer is a breathable, stretchable textile configured for direct contact with the foot, offering softness and elasticity. Directly beneath it is a containment layer made of elastic fabric partially infused or impregnated with silicone, which stabilizes and restrains the granular contents below. The central layer includes one or two or three sealed chambers filled with a cured mixture of silicone and polymeric granules, forming a deformable medium that yields under pressure and mimics natural granular terrain or sand. Beneath this is a synthetic textile layer that restricts lateral expansion of the granular mixture, and preserves chamber geometry during use. The bottom component is a semi-rigid base that structurally supports and anchors all overlying layers.

The invention relates to a fabric that comprises: - an upper layer, comprising warp and weft yarns, defining a right side of the fabric; - a lower layer, comprising warp and weft yarns, defining a wrong side of the fabric; - a median plane, situated between the upper layer and the lower layer; and - a central layer, arranged on either side of the median plane, comprising at least warp and / or weft binding yarns. This fabric is characterised in that the binding yarns are configured to maintain a certain distance between the median plane and the right side and / or the wrong side, said distance varying in the warp direction of the fabric and / or in the weft direction of the fabric, so as to form a raised pattern on a surface of the fabric. The present invention also relates to a method for manufacturing a fabric according to the invention.

The present invention relates to a multilayer structure (1) for food packaging comprising: one or more central layers (10) of polymeric material stacked one on the other and defining a central assembly (11) having two free first opposite surfaces (11a, 11b); a barrier layer (20) on each free first surface (11a, 11b) of the central assembly (11) having a relative second barrier surface (20a, 20b), each barrier layer (20) is an ethylene-vinyl-alcohol (EVOH) layer.

The utility model relates to the technical field of concrete plate transfer, in particular to a transfer device for producing autoclaved aerated concrete plates, which comprises a transfer trolley and universal wheels, the universal wheels are mounted at four corners of the lower end of the transfer trolley, a bottom plate is fixedly connected to the upper end of the transfer trolley, the upper end of the bottom plate is fixedly connected with a transverse plate at the lowest layer, and the bottom plate is fixedly connected with a transverse plate at the lowest layer. Discharging assemblies are distributed on the upper surface of the transverse plate, and a lifting assembly is arranged on the outer wall of the transverse plate. Through cooperation of a second servo motor, a screw, a first oblique beam, a second oblique beam, transverse plates, grooves and concrete slabs, the second servo motor is controlled to reset, the multiple layers of transverse plates are released and unfolded again, then the concrete slabs of the central layer of transverse plates and the lowest layer of transverse plates are placed, and the charging process of the concrete slabs is achieved. The problems that when the concrete slab on the uppermost layer is loaded or taken, the concrete slab on the uppermost layer is very inconvenient to load or take due to the high position, and the concrete slab is prone to falling off are effectively solved.

A film for a pouch having a central layer, a first LLDPE tie layer, a second LLDPE tie layer, an outside HDPE layer, and inside HDPE layer and an inner LLDPE layer. The central layer is an ethylene EVOH, having an inside and an outside opposite the inside and a thickness. The first LLDPE tie layer is on the inside of the EVOH. The second LLDPE tie layer is on the outside of the EVOH. The at least one outside HDPE layer on an outside of the second LLDPE tie layer opposite the EVOH layer. The at least one inside HDPE layer on an inside of the first LLDPE tie layer opposite the EVOH layer. The inner LLDPE layer on an innermost of the at least one inside HDPE layer. The inside PE thickness being at least twice the outside PE thickness.

The utility model discloses a self-adhesive leveling-free anti-slip ceramic tile which sequentially comprises an anti-slip layer, a central layer and a self-adhesive layer from outside to inside, a buffer cushion layer is arranged at the corner below the self-adhesive layer, the ceramic tile and tools are prepared before construction, a ground base layer is checked, uneven positions are processed, meanwhile, the integrity of the central layer of the ceramic tile is checked, and the self-adhesive leveling-free anti-slip ceramic tile is obtained. During paving, release paper of the self-adhesive layer is torn off, the ceramic tile is adhered from one corner, leveling is avoided by utilizing the elasticity of the buffer cushion layer, a rubber hammer is used for adjusting, stripes and particles of the anti-skid layer are checked after paving is completed, the anti-skid effect is ensured, and the paving flatness and firmness of the ceramic tile are checked at the same time. The ceramic tile simplifies the construction process, has good anti-skid performance and structural strength, and effectively improves the construction efficiency and the use safety.

A personal absorbent article (20) comprising in this order a topsheet (24), an optional acquisition layer (50), an apertured central layer (60) and a backsheet (25). The apertured central layer may be a nonwoven comprising or consisting of superabsorbent fibers. The topsheet, together with the optional acquisition layer when present, at least partially conforms to the apertures of the apertured central layer so that a three-dimensional surface on the wearer-facing side of the article is provided.

The invention relates to a flat pressure sensor unit, in particular a pressure sensor sheet (3), comprising first conductor paths (310) and second conductor paths (32) and a central layer (33) arranged between the first and the second conductor paths (310, 320). The first and second conductor paths (310, 320) cross one another, spaced apart by the central layer (33), whereby cross-over points (30) are formed in order to detect, as sensors, a spacing change between the first and second conductor paths (310, 320) generated by an external application of pressure. The conductor paths (310, 320) are sewn onto at least one material layer (31, 32). First and second connecting paths (390, 391) are provided, leading away from the first and second conductor paths (310, 320), extending towards at least one electronics unit (380, 381) and ending at the at least one electronics unit (380, 381). The first and second conductor paths (390, 391) are sewn on the at least one material layer (31, 32). The flat pressure sensor unit can be easily and economically produced and allows for flexible design both in the selection of the material layers (31, 32) and in the arrangement of the conducting and connecting paths (310, 320, 390, 391).

The invention relates to a fabric comprising: - an upper layer, comprising warp and weft yarns, defining a right-side surface of the fabric; - a lower layer, comprising warp and weft yarns, defining a wrong-side surface of the fabric; - a median plane, disposed between the upper and lower layers; and - a central layer, disposed on either side of the median plane, comprising at least some binding warp and / or weft yarns. This fabric is particular in that the binding yarns are configured to maintain a certain distance between the median plane and the right-side and / or wrong-side surface, said distance varying along the warp direction of the fabric and / or along the weft direction of the fabric, so as to form a relief on a surface of the fabric. The present invention also relates to a method for manufacturing a fabric according to the invention. Figure for the abstract: Fig 1

The invention relates to a cheese mold (1) configured for molding and pressing pressed cheeses, particularly Beaufort cheese. The cheese mold (1) comprises: a central layer (5) made of a first material and having a first thickness, the central layer (5) defining a structure of the cheese mold (1); an intermediate layer (6) made of a second material and having a second thickness, completely covering the central layer (5), the intermediate layer (6) ensuring the rigidity of the cheese mold (1); and an outer layer (7) made of a third material and having a third thickness, the outer layer (7) being designed to cover the intermediate layer (6), the outer layer (7) being configured to define an external surface of the cheese mold (1) and to be in contact with the cheese. (Fig. 3)

A method for making a braking band (2) for a brake disc (1) for a disc brake, comprising the following steps: a) preparing a mold (10) having an inner cavity (11), which comprises a first portion (11a) of a shape corresponding to the braking band (2) to be made; b) preparing a band preform (20) comprising a central layer (200) made of porous ceramic material comprising silicon carbide (SiC), an upper outer layer (201) and a lower outer layer (202), said upper outer layer (201) and said lower outer layer (202) being made of porous ceramic material comprising silicon carbide (SiC) and infiltrated with silicon (SiC+Si), said upper outer layer (201) and said bottom outer layer (202) being arranged in an opposing way and on opposite sides of the central layer (200); c) placing said band preform (20) inside the mold at the first portion (11a) of said inner cavity (11); and d) injecting a liquid or semi-solid aluminum alloy inside the entire inner cavity (11) of the mold (11) so as to infiltrate only the central layer (200) of said band preform (20) made of porous ceramic material with said aluminum alloy, obtaining at the first portion (11a) an aluminum metal matrix composite reinforced by said central preform (200) which defines the braking band (2) to be made. A braking band and a brake disc are made at least with the aforesaid method.

The invention relates to a silage film with a total thickness between 75 µm and 150 µm, comprising at least one outer and at least one inner layer, a central layer composed of a soft polyethylene (PE), selected from linear low-density polyethylene (LLDPE) or low-density polyethylene (LDPE), at least one functional layer arranged on either side of the central layer and at least one intermediate layer positioned between each functional layer and the outer or the inner layer. At least one functional layer is composed of a special polyethylene that replaces conventional barrier layers. The silage film is entirely free of any barrier layers, including polyamide (PA) or ethylene vinyl alcohol (EVOH).

This invention discloses a cold-cut anti-fraying webbing, relating to the field of webbing technology. It includes a webbing body, which is an integrated composite structure comprising, from the inside out, a reinforcing central layer, a first side buffer layer and a second side buffer layer, a first surface skin-friendly layer and a second surface skin-friendly layer, side edge locking ribs, and a surface penetrating shaping coating covering the outer side of the webbing body. This invention relies on a triple anti-fraying structure: internal low-melting-point irregularly shaped adhesive yarn multi-dimensional cohesion constraint, side dense locking rib edge limiting, and surface shaping coating gap reinforcement. This allows the webbing to be directly cold-cut using a room-temperature sharp blade, enabling free cutting at any transverse or longitudinal position. The cut edge requires no heat-sealing, no glue-sealing, and no sewing.

The invention discloses a sampling device for a sludge layer at the bottom of a reservoir and relates to the field of hydraulic engineering. The device comprises a sampling barrel, a connecting shaft is rotatably mounted in the sampling barrel, the connecting shaft is provided with a transmission mechanism, the transmission mechanism comprises a worm fixedly mounted on the connecting shaft, the worm is meshed with a worm gear, one ends of first connecting rods are fixedly mounted on the two sides of the worm gear, and the other ends of the two first connecting rods are rotatably mounted on a second connecting rod; a moving plate is fixedly mounted on the second connecting rod and penetrates through the sampling opening to extend out, and the sampling opening is formed in the sampling barrel. By arranging the grab bucket type sampling mechanism, a grab bucket goes deep into a sludge layer for direct grabbing during sampling, and the problem of center layering deviation caused by large viscosity of sludge and the inner wall of a traditional sampling pipe is avoided. Samples at different positions can be uniformly obtained, the overall condition of a sludge layer can be reflected more truly, the accuracy and representativeness of the samples are improved, and reliable data are provided for subsequent research and analysis.

The invention discloses a microcapillary free bending springback prediction method considering a size factor. The method comprises the following steps: determining an elastic modulus, a geometric dimension and a grain size of a microcapillary to be detected; determining microcapillary flow stress in a single crystal state which is the same as that of the microcapillary material to be detected; dividing the cross section into an inner surface layer, an outer surface layer and a central layer according to the grain size of the microcapillary to be measured, and calculating the flow stress of the surface layer and the flow stress of the central layer according to a surface layer model; according to the springback theory, integration is carried out on the inner surface layer, the outer surface layer and the center layer to solve the section bending moment when the microcapillary springback occurs; and solving the rebound angle considering the size factor in the stable arc section of the microcapillary. According to the method, the size effect occurring in the bending and springback process of the pipe under the micro-scale condition is considered in the calculation of the springback angle, and the accuracy degree of free bending springback angle prediction and axis control of the microcapillary can be effectively improved.

A personal absorbent article (20) comprising in this order a topsheet (24), an optional acquisition layer (50), an apertured central layer (60) and a backsheet (25). The apertured central layer may be a nonwoven comprising or consisting of superabsorbent fibers. The topsheet, together with the optional acquisition layer when present, at least partially conforms to the apertures of the apertured central layer so that a three-dimensional surface on the wearer-facing side of the article is provided.

The application provides a red pigment sheet. The red pigment sheet comprises a central layer and at least one set of interference cavity film stacks stacked on at least one side main surface of the central layer, each set of interference cavity film stacks comprising a first dielectric layer, a first metal light adjusting layer, a second dielectric layer and a second metal light adjusting layer which are sequentially stacked in a direction away from the central layer, wherein the thickness of the second dielectric layer is an even multiple of the thickness of the first dielectric layer, and the thicknesses of the first dielectric layer and the second dielectric layer are set so that when the observation angle is the normal direction of the main surface of the central layer, the red pigment sheet has only one main peak in the 380-780 nm wave band, the position of the main peak is at 600-700 nm, and the half peak width is less than 80 nm. The red pigment sheet has high color purity, wide color change color gamut, and large production tolerance and high efficiency.

Disclosed herein is an absorbent front assembly for integration in a washable absorbent male undergarment. The absorbent front component has an extension in a longitudinal direction (y), a transverse direction (x) and a thickness direction (z) perpendicular to the longitudinal direction (y) and the transverse direction (x). The absorbent anterior assembly includes a liquid permeable layer, a liquid impermeable layer, and first and second absorbent layers positioned between the liquid permeable layer and the liquid impermeable layer. The absorbent front component is a three-dimensionally shaped absorbent front component comprising first and second side panels joined along a long curved side edge by a curved central joint extending from a top edge to a bottom edge of the absorbent front component in a longitudinal direction (y). Each layer of the three-dimensionally shaped absorbent front component comprises first and second layer side panels joined along long curved layer side edges by a central layer joint extending in a longitudinal direction (y) from a top edge to a bottom edge of the absorbent front component and curved in a thickness direction (z). The central junction of the absorbent front assembly includes a central layer junction in which the first and second layer side panels of the first absorbent layer are joined by a flat lock stitch in class 600 according to international standard ISO 4915. An absorbent male undergarment including the absorbent front panel and methods for making the absorbent front panel and the absorbent male undergarment are also disclosed.

Disclosed is an absorbent core for use in an absorbent article, the absorbent core extending in a transverse direction and a longitudinal direction and having a thickness in a vertical direction perpendicular to the transverse direction and longitudinal direction, the absorbent core comprising: a liquid-permeable top cover layer; abottom cover layer; a high loft central layer between the top cover layer and the bottom cover layer, the high loft central layer having a top surface and a bottom surface, wherein the high loft central layer has from about 0.05 g / cm3 to about 0.15 g / cm3 at 4.14 kPa (0.6 psi) and / or the initial thickness of the central layer at 4.14 kPa (0.6 psi) is more than about 0.30 mm, as measured using Thickness and Density Measurement Method herein; and a superabsorbent polymer in the form of particles deposited on the high loft central layer, wherein the superabsorbent polymer particles have a capacity of at least about 20g / g as measured by the CRC method described herein; wherein each of the top cover layer and the bottom cover layer are bonded to the top surface and the bottom surface of the high loft central layer, respectively, by a substrate adhesive having a density of less than about 13gsm,; wherein each of the top cover layer and the bottom cover layer are further bonded to the top surface and the bottom surface of the high loft central layer, respectively, by an auxiliary adhesive having a density of more than about 25gsm, the auxiliary adhesive distributed for less than 10%of each of the area of the high loft central layer facing the top cover layer and the bottom cover layer.

This invention provides a method, apparatus, and silicon carbide single crystal preparation method, relating to the field of silicon carbide single crystal technology. The method includes: vertically arranging multiple silicon carbide raw material wafers at intervals at the bottom of a crucible cavity, wherein the multiple silicon carbide raw material wafers have a multilayer structure, and the silicon-to-carbon ratio of the silicon carbide raw material wafers gradually decreases from the central layer to the outer layers; placing a silicon carbide seed crystal in the crucible cavity, the seed crystal being positioned above the multiple silicon carbide raw material wafers; installing the crucible in the furnace cavity of a growth furnace, and growing the silicon carbide single crystal according to a preset growth program. This invention's preparation method, by precisely controlling the ratio of carbon source to silicon source in the raw materials, effectively alleviates the Si / C ratio imbalance problem in the later stages of growth, stabilizes the crystal growth rate, improves the slow growth situation in the later stages, and reduces defects.

This invention discloses a method for preparing a three-dimensional porous carbon nanopiezoelectric material, comprising the following steps: (1) mixing an aromatic compound containing both nitro and amino groups with concentrated sulfuric acid at high temperature and heating to a molten state; (2) after becoming molten, continuing to heat the mixture a second time to rapidly expand the molten liquid to form carbon foam; (3) using a vacuum filtration method to repeatedly wash the obtained porous carbon material with water and ethanol until the washing liquid is neutral, and drying it after washing to obtain the three-dimensional porous carbon nanopiezoelectric material. This invention also discloses the application of the above-mentioned three-dimensional porous carbon nanopiezoelectric material in the preparation of flexible piezoelectric devices, specifically: the flexible piezoelectric device uses a PDMS-modified three-dimensional porous carbon nanopiezoelectric composite material as the central layer, with metal electrode layers adhered above and below the central layer, and the flexible piezoelectric device is encapsulated with a flexible insulating film; the piezoelectric composite material uses a three-dimensional porous carbon material as the piezoelectric material, with PDMS filling the pores of the porous carbon material, and PDMS serving as the supporting structure of the three-dimensional carbon skeleton.

This invention discloses an aluminum-based silicon carbide composite battery casing, its preparation method, battery, and electronic device, relating to the field of battery casing technology. By setting aluminum-based silicon carbide composite intermediate layers with different silicon carbide contents and particle sizes, wherein the central layer has a relatively high silicon carbide content and a larger particle size, it can provide sufficient strength support for the battery; the sub-layer uses silicon carbide with a relatively small particle size and a smaller amount, which can effectively improve the interfacial bonding density of the material, reduce stress concentration, and improve the strain compatibility of the aluminum-based silicon carbide composite intermediate layer during plastic deformation, thereby significantly improving the ductility and crack propagation resistance of the material. The battery casing provided by this invention ensures the overall strength of the material while achieving lightweight construction. Simultaneously, the surface layer uses a high-aluminum-content aluminum alloy to ensure good corrosion resistance and weldability of the battery casing. After forming, laser welding can achieve weld sealing.

An improved method for the production and profiling of insulating panels is herein described, comprising a central layer and two outer coating layers on surfaces which are opposite the central layer, said method comprising production of a continuous strip of insulating panel; first sectioning cut of a first panel segment that is transverse to a sliding direction of the continuous strip; longitudinal lateral profiling of the first panel segment; second multiple transverse cut of the first panel segment into a plurality of second panel segments and preferably transverse squaring and profiling of the second segments; and furthermore comprising at least one of the longitudinal lateral profiling step and / or second multiple transverse cut step and / or transverse squaring and profiling step comprises a removal, or peeling step, and collating at least one portion of at least one or both the two outer layers, and a separate removal and recovery step and collating the related central layer, wherein the removal step comprises an incision, lifting, or removal, removing and collating step of at least one of two strips or both comprising the outer coating layers of surfaces which are opposite the central layer, thus generating a surface groove by cutting and removing the outer layers comprising a first foam thickness adhering thereto at the surface groove. A related production and profiling plant of insulating panels is also described.

The present invention relates to a fiber reinforcement material and a submarine cable comprising same, the fiber reinforcement material comprising, on the basis of a central layer of a specific number of straight fibers, two outer layers of stranded fibers that are a specific number of strands inserted into the vicinity thereof, and being used instead of a conventional non-metal tensile material.

The invention provides light-weight optical tempered glass and a preparation method thereof.The light-weight optical tempered glass comprises a glass sheet, the glass sheet comprises a first Boltzmann distribution layer, a center layer and a second Boltzmann distribution layer which are sequentially arranged in a stacked mode, and the thickness of the first Boltzmann distribution layer and the thickness of the second Boltzmann distribution layer are both 0-200 microns; at least one part of the first Boltzmann distribution layer and at least one part of the second Boltzmann distribution layer have pressure stress, and the pressure stress is 500-1200 MPa and gradually decreases towards the central layer; the center layer has a tensile stress, and the tensile stress linear density CTLD of the tensile stress is from 19,000 MPa to 70,000 MPa. After the light-weight optical tempered glass is tempered, the stress distribution on the surface of the glass is uniform, and the mechanical property is excellent.

A film for a pouch has a central layer, a first LLDPE adhesive layer, a second LLDPE adhesive layer, an outer HDPE layer, an inner HDPE layer, and an inner LLDPE layer. The central layer is ethylene EVOH having an inner side and an outer side opposite the inner side and a thickness. The first LLDPE adhesive layer is on the inner side of the EVOH. And the second LLDPE bonding layer is arranged on the outer side of the EVOH. And the at least one outer HDPE layer is arranged on the outer side of the second LLDPE bonding layer opposite to the EVOH layer. The at least one inner HDPE layer is arranged on the inner side of the first LLDPE bonding layer opposite to the EVOH layer. The inner LLDPE layer is on the innermost layer of the at least one inner HDPE layer. The inner PE thickness is at least twice the outer PE thickness.

The invention provides an electrostatic spinning phenolic aldehyde / aramid fiber micro-nano fiber composite filter material and a preparation method and application thereof, the composite filter material comprises a flame-retardant adhesive layer positioned on the outer layer, a phenolic aldehyde / aramid fiber micro-nano fiber membrane positioned on the central layer and an aramid fiber water guide layer positioned on the inner layer, the outer layer and the inner layer are sewn in a penetrating mode through quilting lines to form an interlocking structure. The composite filtering material disclosed by the invention shows synergistically enhanced high-temperature filtering stability and flame retardance, excellent mechanical durability and excellent moisture penetrability, and can reach the PM2.5 capture rate of more than 99.0% under the condition of ultralow basis weight, and a new normal form is provided for sustainable protection equipment development.

A multilayer material (1) comprising in sequence (a) a base layer (2) consisting of a plurality of sublayers (5, 6), having spider web structures (7) made of polymeric fibres and / or mineral fibres immersed in a synthetic resin matrix; (b) a central layer (3) made of ceramic material; and (c) a front layer (4) composed of one or more sublayers, each of which comprises one or more spider web structures (7) made of polymeric fibres and / or mineral fibres immersed in a synthetic resin matrix.

The invention relates to a silage film with a total thickness between 75 µm and 150 µm, comprising at least one outer and at least one inner layer, wherein the middle layer consists of a soft polyethylene (PE) selected from linear low-density polyethylene (LLDPE) or low-density polyethylene (LDPE), at least one functional layer arranged on both sides of the central layer, and at least one intermediate layer situated between each functional layer and the outer or inner layer. At least one functional layer consists of a special polyethylene that replaces conventional barrier layers. The silage film has an oxygen permeability of less than 150 cm³. 3 / m 2 / 24h at 23 °C and 50% relative humidity, measured according to ASTM D3985. The silo film is completely free of barrier layers, including polyamide (PA) or ethylene vinyl alcohol (EVOH).

An absorbent core (28) for use in an absorbent article (20), the absorbent core (28) having a high loft central layer (43) between a top layer and a bottom layer, and superabsorbent particles (SAP) at least partially distributed within the high loft layer, the superabsorbent polymer particles having a time to reach 20 g / g absorption (SAP T20) of less than 220 seconds, and / or the absorbent core having a time to reach 15 g / g absorption (Core T15) of less than 200 seconds, and / or the absorbent core having a mass fraction of less than 6.0 x 10 -8 cm 2 These properties are measured according to the K(t) test method described herein.