335results about "Protective equipment" patented technology

The application relates to the field of chemical-proof fabrics, and particularly discloses a flame-retardant chemical-proof fabric and a preparation process thereof. The flame-retardant chemical-proof fabric comprises, from outside to inside, an outer layer, a bonding layer, a framework layer, a bonding layer and an inner layer which are sequentially contacted, the outer layer is a barrier layer, the inner layer is a barrier layer or an adsorption layer, the framework layer is selected from at least one of a composite fabric of aramid fiber / polyimide fiber, a basalt fiber cloth, a glass fiber cloth, a flame-retardant polyester cloth and a flame-retardant acrylic fiber cloth, the barrier layer is selected from at least one of a PVC / TPU composite film, a PVC film, a PTFE film, a PE film, silicone rubber, fluororubber, butyl rubber, chloroprene rubber and natural rubber, and the adsorption layer comprises a mixed fabric layer formed by nylon fiber and polyester fiber containing an adsorption material. The flame-retardant protective fabric has the advantages of high flame-retardant capacity, good chemical-proof effect, excellent puncture resistance and tensile resistance, can absorb moisture and sweat, and is comfortable to wear.

The present disclosure relates to flame retardant laminates that can be used to make flame retardant textiles and flame retardant garments. The laminates described herein allow the use of non-flame retardant textiles to produce the flame retardant laminates. This use of non-flame retardant textile can provide laminates that can be much lighter in weight, more comfortable against the skin, more breathable, more durable, produced in a wider array of colors, have better moisture management properties, mechanical strength, and more environmentally friendly than flame retardant laminates that use inherently flame retardant textiles.

The present invention relates to a reinforcement member made from a polymeric material. The present invention further relates to a vehicle comprising the reinforcement member, a method to absorb an impact on vehicle and a method to produce the reinforcement member.

The invention discloses ultra-high molecular weight polyethylene composite stab-resistant cloth and a preparation method and application thereof, and relates to the technical field of stab-resistant cloth, and the preparation method comprises the following steps: S1, preparing a binder solution; and S2, dipping the ultra-high molecular weight polyethylene non-woven fabric in the binder solution, taking out the ultra-high molecular weight polyethylene non-woven fabric, coating the surface of the base fabric with a layer of dispersion liquid containing negative expansion nanoparticles, and drying the base fabric to obtain the composite base fabric. The negative expansion layer is formed on the base cloth, so that the negative expansion layer is more compact during hot pressing or can be more tightly filled between the non-woven cloth, the porosity of the base cloth is reduced, larger resistance is formed, and the puncture-proof effect of the base cloth is greatly improved; meanwhile, the polyisoprene fibers with thermal shrinkage and cold expansion are further added, the toughness of the coating is improved, a complex network structure can be formed by the polyisoprene fibers and the nano-particles, certain space resistance can also be formed, and the puncture-proof effect is improved.

A vehicle is wrapped by an adhesive film which is then slit by applying first tape to the vehicle having a longitudinally extending filament carried by the tape at a position spaced from the side edges. A second tape is applied over the film at the first tape body so as to bridge to each side of the filament and pulling the filament so as to tear through the film and the first ad second tapes body with the second tape applying a force to the film acting to reduce tendency of the film to pull away from the object during the cutting by the filament as the filament is pulled.

Polypropylene-based multilayer film, which is biaxially oriented, process for manufacturing biaxially oriented multilayer film and its use in flexible packaging.

Lightweight ballistic glasses are provided that provide effective protection from ballistic attack while also being lightweight enough for use in armored vehicles and aircraft. In addition to other embodiments, a multilayered lightweight ballistic glass is provided that meets the CEN 1063 Level BR7 standard while having a weight of no greater than about 155 kilograms per square meter (kg / m2), and a total thickness of less than about 75 mm.

Provided in an aspect of the present invention is a transparent laminate (10) including a functional layer (12) and a low-refractive-index layer (13) having a refractive index lower than the refractive index of the functional layer (12), wherein the surface (13A) of the low-refractive-index layer (13) is the surface (10A) of the transparent laminate (10), the surface (10A) of the transparent laminate (10) is not fogged as tested in an anti-fogging ability test, and the absolute value ΔY1 of a difference in the luminous reflectance Y of the surface (10A) of the transparent laminate (10) between before and after the anti-fogging ability test is 0.2% or less.

Embodiments of the present invention replace at least some flame retardant fibers (e.g., aramid fibers) in wadding traditionally used for thermal insulation liners with thermally stable polyamide fibers (e.g., nylon fibers). The TPP performance of garments incorporating thermal liner embodiments encompassed herein is comparable to garments formed with conventional thermal liners, even without being improved.

Reinforced surgical table mattresses or pads and methods of manufacture are disclosed. A layer of polymeric foam can be inserted into a shell formed from one or more sheets of flexible polymeric film material laminated to a fabric and welded together to create a water-proof shell. At least one layer of hotmelt glue film can be positioned inside the shell between the bottom side of the foam and the fabric of the shell. Heat can be applied to the outside of the shell at a temperature above the melting point of the hotmelt glue film and below that of the shell material, melting the glue film and bonding the fabric of the shell to an adjacent layer of material when cooled.

The invention relates to the use of an item of protective clothing, preferably in the form of protective underclothing (protective underwear), for protecting people against an action of and / or contamination with polycyclic aromatic hydrocarbons (PAC) released from a contamination source when staying and / or working in locations in which polycyclic aromatic hydrocarbons are released or present, and / or for protecting people exposed to an action of polycyclic aromatic hydrocarbons against a contamination ("PAC contamination"), in particular to prevent or minimise contamination ("PAC contamination").

An underride protection device for a battery-electric vehicle, having a sandwich arrangement with a core layer arranged between an upper cover layer and a lower cover layer made of a fiber-reinforced plastic material. In order to functionally improve the underride protection device, ribs are arranged on the upper cover layer, which are materially connected to the upper cover layer, wherein the ribs arranged on the upper cover layer are surrounded by a respective top layer, which is materially connected to the upper cover layer at two retaining sections.

The present invention relates to a multilayer textile assembly (10). This textile assembly (10) comprises an outer layer (20) and a base layer (30) on either side of a core (40), said core (40) comprising at least one sub-assembly, each sub-assembly of said at least one sub-assembly comprising an inner woven layer (60) and a felt layer (50), the inner layer (60) being disposed between the felt layer (50) and the outer layer (20), the outer layer (20) as well as the base layer (30) and the inner layer (60) comprising continuous bonded mineral reinforcing fibers, the felt layer (50) comprising said discontinuous bonded mineral reinforcing fibers.

Polypropylene-based multilayer film, which is biaxially oriented, a process for manufacturing the biaxially oriented multilayer film and its use in flexible packaging.

The present invention relates to the technical field of packaging leathers, specifically a very thin electronic packaging leather and preparation method thereof. In the present invention, by attaching a dry PU coating on a very thin woven fabric and using the polycarbonate resin which is solvent free, requirements on high physical performance phone cases are satisfied, in the meanwhile, the phones are light-weighted, and protection performance of the entire phones is improved. By printing a layer of organic silicone antifouling coating, while the texture is smooth and nice, the pollution cleaning and chemical resistance requirements for phones in daily use have been satisfied.

The application discloses an armor plate and a preparation method and application thereof. The armor plate is composed of ceramic, high-strength magnesium alloy, an ultra-high molecular weight polyethylene fiber laminated plate, a crack-arresting layer and an adhesive. The magnesium alloy plate with high damping performance is used as the intermediate transition layer of the armor plate, and plays a rigid supporting role on the ceramic. Meanwhile, the laser remelting is carried out on the bullet-approaching surface and the back surface of the alloy plate respectively, and the micro-texture with different appearances is generated. The micro-texture changes the normal contact stiffness of the alloy plate, and thus changes the stress reaction speed and relaxation characteristics of the alloy plate at the moment of bullet impact. In addition, the existence of the micro-texture also improves the interface bonding strength. Finally, the overall bulletproof capability of the armor plate is improved.

A film laminate that can achieve sufficient sterilization effects and does not have the risk of damaging the film surface structure is provided. A film laminate 1 includes a plurality of film-shaped members 2 laminated in a separable manner, and columnar protruding members 5 protruding in the direction of lamination of the film-shaped members 2 and holding the film-shaped members 2 at a predetermined interval, wherein the protruding members 5 have engagement portions on the outer circumference of the protruding members 5 to which the film-shaped members 2 are engaged at the predetermined interval, the film-shaped members 2 have insertion holes 4 through which the protruding members 5 are inserted and removed as desired, and the film-shaped members 2 are held at the predetermined interval and laminated by the protruding members 5 being inserted through the insertion holes 4 and the film-shaped members 2 being engaged with the engagement portions.

The application provides a polyimide fiber bulletproof impact-resistant composite board and a preparation method thereof, and comprises the following steps: a center flow guide layer is made of a polyimide high-strength and high-toughness filament unidirectional cloth; a first bulletproof layer is stacked on the center flow guide layer; and a second bulletproof layer is stacked on the center flow guide layer; the center flow guide layer is clamped between the first bulletproof layer and the second bulletproof layer, the first bulletproof layer and the second bulletproof layer are each made of a polyimide plain cloth or a polyimide needle felt; the center flow guide layer, the first bulletproof layer and the second bulletproof layer are integrally bonded through an adhesive, and the adhesive is any one of liquid epoxy resin or polycarbonate resin. The polyimide fiber bulletproof impact-resistant composite board provided by the application does not contain a ceramic bulletproof layer, can avoid secondary injury caused by ceramic fragments, has good bulletproof impact-resistant performance, and has a simpler layer structure, lighter quality and more convenient use.

The invention provides a protective clothing fabric for water area rescue. The protective clothing fabric is composed of a surface layer, a heat preservation and moisture absorption layer, a semi-permeable membrane layer and an inner layer which are sequentially laminated and bonded through hot melt adhesive and have sealed end edges, wherein the surface layer is a liquid water barrier formed by polyamide base cloth and a waterproof coating coated on the surface of the polyamide base cloth; the heat-preservation moisture-absorption layer is formed by weaving polyester hollow fibers and polyacrylate fibers spirally wound on the periphery of the polyester hollow fibers, and moisture-absorption particles are loaded on the outer surfaces of the fibers; the semi-permeable membrane layer adopts a microporous polytetrafluoroethylene membrane which is arranged in a gradient manner; the inner layer is formed by blending bamboo charcoal fibers and polyacrylate fibers, and the moisture absorption efficiency of the heat preservation and moisture absorption layer is higher than that of the inner layer. The fabric realizes balance of water resistance and moisture permeability and synergism of heat preservation and moisture absorption, has the advantages of light weight, movement flexibility, durability and comfort, and remarkably improves the operation efficiency of water area rescue protective clothing.

The thermal barrier article of the present invention comprises a multilayer material including a first fiber layer disposed on a first side of a ceramic layer and a second fiber layer disposed on the opposite side of the ceramic layer. The thermal barrier article may also include an alternating arrangement of multiple fiber layers and ceramic layers. In each of these embodiments, the thermal barrier article has sufficient flexibility and thermal properties to withstand a bending adjustment test and a pyrotechnic impact test having a temperature of at least 1200°C and releasing a non-negligible amount of particles.

The invention relates to a lightweight multi-environment adaptive individual explosion-proof composite material and preparation and application thereof, the composite material comprises a first impact-resistant surface layer, a second impact-resistant surface layer and an energy absorption layer arranged between the first impact-resistant surface layer and the second impact-resistant surface layer, and an energy absorption crack arrest layer is further arranged between the first impact-resistant surface layer and the energy absorption layer. According to the explosion-proof material, the design of a traditional explosion-proof material with a single structure is improved, and the technical problems that an existing material is thick and heavy in structure, poor in impact resistance, low in energy absorption efficiency, poor in durability and the like are solved.

The application discloses a composite film material with dynamic infrared stealth, electromagnetic shielding and heat management functions and a preparation method and application thereof. The composite film material is a three-layer asymmetric structure. A first outer layer is a nanoporous film for reflecting sunlight and transmitting infrared radiation. A middle layer is a uniform and dense MXene layer for absorbing sunlight, reflecting infrared radiation and shielding electromagnetic interference. A second outer layer is a heat-insulating PDMS layer with a patterned array design for high sunlight transmission and high infrared emissivity. The spectrum-selective nanoporous film / MXene / patterned PDMS composite film material with the asymmetric structure can have good infrared stealth, electromagnetic shielding and heat management performances under high, low and humidity conditions, and can be applied to the fields of shielding stealth and heat management under complex dynamic scenes.

The present invention provides a transparent laminate and an image display device provided therewith, the transparent laminate having an antireflection property and an excellent anti-fogging property, and having luminous reflectance that rarely changes even in an environment where fogging tends to occur. According to an aspect of the present invention, provided is a transparent laminate 10 equipped with a functional layer 12, and a low refractive index layer 13 having a lower refractive index than that of the functional layer 12, wherein a surface 13A of the low refractive index layer 13 forms a surface 10A of the transparent laminate 10, and when the transparent laminate 10 is subjected to an anti-fogging property test in which after being left as it is for five minutes in an environment of -15°C, the transparent laminate 10 is moved into an environment of 20-25°C and a relative humidity of 40-70% and left as it is for five minutes, the surface 10A of the transparent laminate 10 is not fogged, and ΔY1 that is the absolute value of a difference in the luminous reflectance Y of the surface 10A of the transparent laminate 10 between before and after the anti-fogging property test is 0.2% or less.

Nonwoven fabrics are provided that include a first meltblown layer, in which the first meltblown layer comprises a first polymeric material including (i) a first polymer component and (ii) optionally one or more first additives. The first polymer component comprises a first recycled-polypropylene (rPP).

A tempered glass for preventing generation of a rainbow pattern and a manufacturing method thereof are provided. The tempered glass for preventing generation of the rainbow pattern is prepared by compounding a protective layer and an ultra-low phase-difference substrate layer. A compounding process is introduced in the manufacturing method to allow the synchronous stretching of a plurality of layers. In the tempered glass, a substrate layer with an ultra-low phase difference in terms of a polarization angle from a polarizer is arranged, such that a user can well view a screen of an electronic product in various scenarios, and a content of a screen will not undergo rainbow patterns or color differences due to different scenarios and conditions. A material used for the tempered glass has a high light transmittance, a low haze, a high deformation rate, and a high resilience rate to allow ultra-high performance.

This invention provides an air filter material that minimizes pressure loss, is high-performance, and is less prone to clogging; a method for manufacturing the air filter material; a filter material for face masks; and a pleated filter material for face masks. The air filter media (30) of the present invention comprises a fluoropolymer porous membrane (31) and an air-permeable support material (32) laminated on the fluoropolymer porous membrane (31). For the fluoropolymer porous membrane (31), the pressure loss when air passes through at a flow rate of 5.3 cm / s is 80 Pa or less. Based on the pressure loss and the capture efficiency obtained by using NaCl particles with a particle size of 0.1 μm, the PF value determined by the following formula is 20 or more, and the thickness is 10 μm or more. When air containing polyalphaolefin particles with a median particle size of 0.25 μm is continuously passed through at a flow rate of 5.3 cm / s, the dust retention of the above-mentioned polyalphaolefin particles is 15.0 g / m when the pressure loss increases to the level of 250 Pa. 2 above.

The present disclosure relates to heat-fillable articles made from multi-layer thermoformable films and sheets comprising polyester and copolyester compositions containing residues of terephthalic acid, 1,4-cyclohexanedimethanol (CHDM), 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD), ethylene glycol (EG), and diethylene glycol (DEG) in specific compositional ranges, having certain advantages and improved performance characteristics.

The present invention relates to (i) a bonded sheet of nonwoven flash-spun plexifilamentary fibrils exhibiting high tear resistance, a high degree of breathability and high tensile strength, (ii) a process for the preparation of a bonded sheet of nonwoven flash-spun plexifilamentary fibrils, and (iii) a multilayer sheet structure and an article comprising at least one bonded sheet of nonwoven flash-spun plexifilamentary fibrils.

Flameproof material for wearables, personal protective equipment, lithium-ion battery flame protection, and general flame protection are disclosed. A particular embodiment includes a flameproof material comprising: a first material being a combination of Oxidized Polyacrylonitrile (PAN) fiber and Para-aromatic polyamide (P-aramid) fiber; a second material being a combination of Oxidized PAN fiber, fire-resistant rayon (FR-rayon), and P-aramid fiber; and a third material being a combination of silica aerogel and fibrous glass configured for bonding with the first or second materials, the second material being configured for bonding with the first or third materials.

The invention relates to the technical field of explosion protection, and discloses an anti-explosion protection device which comprises a vibration reduction partition and a buffer mechanism. The vibration reduction partition comprises a vibration reduction frame and a vibration reduction assembly, a vibration reduction cavity is formed in the vibration reduction frame, the vibration reduction assembly is arranged in the vibration reduction cavity, the vibration reduction assembly comprises elastic pieces and a mass block, the elastic pieces are supported between the vibration reduction frame and the mass block, and the elastic pieces are supported on the two opposite sides of the mass block in the anti-explosion direction of the vibration reduction frame. A deformation gap for deformation of the vibration reduction frame is reserved between the mass block and the vibration reduction frame. The buffering mechanism comprises a mounting assembly, energy absorption connecting pieces and buffering assemblies, the mounting assembly comprises a mounting frame and a connecting frame, one end of each buffering assembly is hinged to the mounting frame, the other end of each buffering assembly is hinged to the connecting frame, each buffering assembly is connected with the corresponding energy absorption connecting piece, and the buffering assemblies are used for being folded under the condition that the damping partition is impacted. And the energy absorption connecting piece is driven to generate elastic deformation.