80 results about "Ethyl vinyl acetate" patented technology

Improved compositions comprise a polymer and carbon fibers, such as nanotubes. In some embodiments, the carbon fibers, e.g., nanotubes, can be mechanically blended or incorporated into the polymer, while in some embodiments carbon nanotubes also may be covalently bonded to the polymer to form corresponding covalent materials. In particular, the polymer can be covalently bonded to the side walls of the carbon nanotubes to form a composite with particularly desirable mechanical properties. Specifically, the bonding of the polymer to the nanotube sidewall can provide desirable mechanical properties of the composite due to the orientation relative to other types of association between the nanotubes and the polymer. The processing of the nanotubes can be facilitated by the dispersion of the nanotubes in an aqueous solution comprising a hydrophylic polymer, such as ethyl vinyl acetate. A dispersion of nanotubes can be combined with a polymer in an extrusion process to blend the materials under high shear, such as in an extruder. In general, various articles can be formed that take advantage of the properties of the composite materials incorporating a polymer and carbon fibers, such as carbon nanotubes.

Shoe inserts, including midsoles, footbeds, sockliners and/or upper components with a moldable outer membrane having an upper portion and a bottom portion, with the bottom portion being injected through an injection means with one or more layers of granular ethyl vinyl acetate through one or more compartments located inside of the outer membrane, the layers of granular ethyl vinyl acetate being of various densities to fit the particular application, the granular ethyl vinyl acetate being produced through the breaking down of the physical state of solid foam ethyl vinyl acetate and with the granular ethyl vinyl acetate optionally containing on or more variety of colors.

A medical shoe for use in supporting a patient's foot and a method of using same, the medical shoe comprising an out sole, an upper assembly secured to and partially surrounded by the out sole and an insole assembly substantially enclosed by the outsole and the upper assembly. The outsole having a base portion generally corresponding with the plantar aspect of a human foot and of varying thickness and having a substantially rectangular opening in a top surface of the base portion thereof adapted for accommodating a metatarsal shank. The out sole having a circumferential counter portion extending upward circumferentially from the top surface of the base portion thereof around the base portion of the outsole thereby providing a cavity in the outsole. The upper assembly adapted to surround at least the heel, sides and dorsal portions of the human foot. The upper assembly attached to the top surface of the base portion of the outsole and the circumferential counter of the outsole, and extending in a dorsal direction from the top surface of the base portion of the outsole along the circumferential counter. The insole assembly having a plurality of insole layers disposed in the outsole cavity and surrounded by the upper assembly and the outsole circumferential counter. The plurality of insole layers provided to include a first insole layer, a second insole layer a third insole layer and a fourth insole layer wherein the first and second layers are an Ethyl Vinyl Acetate (EVA) material and the second layer has a durometer less than the first layer, the third layer is a Poron material with a durometer less than the second layer, and the fourth layer is an EVA material with a durometer less than the third layer, and the first, second, third, and fourth layers may be assembled in any order as determined by a health care provider.

The invention discloses a modified EVA (ethyl vinyl acetate) foaming body and a preparation method and an application of the same. The modified EVA foaming body comprises ethylene ethyl acetate copolymer, polyolefin elastomer, lignocelluloses powder, foaming agent, bridging agent, activator and zinc oxide at a mass ratio of 70:30:(20-80):(3.0-5.0):(0.4-1.0):(1.0-3.0):(0.5-2.5). The modified EVA foaming body has a specific weight of lower than 0.2, light weight and compression set resistance of lower than 50% and can be worn for a long time, the insoles of a pair of shoes prepared with the modified foaming body have light weight and good durability, the modified EVA foaming body is suitable for producing insoles and pads of various sports and casual shoes and has an important application value.

Joining a bottom unit, such as an athletic shoe sole, with an upper is achieved with an over molding process. A midsole core may be formed with a direct attach to an underfoot portion of the upper. The forming of the midsole core may be achieved with open cast molding or injection molding, for example. A shell may encapsulate the midsole core and also mechanically engage with the upper to further join the bottom unit with the upper. The shell and the midsole core may be formed from an elastomeric polymer such as polyurethane, thermoplastic polyurethane, ethyl-vinyl acetate, and/or silicone-based materials.

A waterproof safety article of footwear and preferably, but not exclusively, constructed with an outer shell formed from EVA (ethyl vinyl acetate) material, is described. It is comprised of an outer boot shell formed of waterproof material capable of being injection molded and an inner protective boot liner which is positioned inside the boot shell. The protective liner has a puncture proof insert, preferably a toe cap and sole plate secured thereto. The outer shell can also be molded from TPR (thermoplastic rubber) material. In order to achieve a maximum light weight safety article of footwear, the protective liner has a toe cap and a sole plate formed from composite materials and the outer shell is molded from EVA material. The method of constructing the waterproof safety article of footwear is also described.

A compartmentalized massage roller is disclosed facilitating a unitary structure for separable components, and thus capable of providing a plurality of massage techniques. The massage roller can contain an outer sleeve and an inner roller, wherein the outer sleeve defines a hollow opening configured to receive and enclose the inner roller. The inner roller is removably secured to the outer sleeve through frictional forces exerted through contact between the inner roller and hollow opening surface. The outer sleeve can define a plurality of curvy ridges configured to target softer muscles. The inner roller can contain a plurality of inner ridges configured to mimic myofascial release therapy typically conducted by fingers. The inner ridges further define a plurality of troughs, each located between a pair of adjacent inner ridges, wherein the troughs are configured to encapsulate and secure muscles to release binding collagen. The outer sleeve and inner roller can be further constructed with ethyl-vinyl acetate, which can be configured with varying Shore Hardness Levels.

A light-weight side gusset for a bag includes a formed composite frame having a peripheral raised region and a depressed central region. An opening through the depressed central region forms a relatively narrow border portion around the inner periphery of the raised region. A central panel corresponding in configuration to the outline of the depressed region is attached to the border portion of the depressed region to cover the opening therethrough. The composite frame is made up of a moldable substrate, e.g. ethyl vinyl acetate foam, an outer layer wear-resistant material, e.g., high-denier nylon or poly/nylon combination, and, preferably, an inner adherent layer, e.g., the loop half of a hook-and-loop fabric. A complete bag is assembled by securing two such gussets to the body of the bag. Methods of manufacturing the composite frame, a gusset including such frame, and a bag including such gussets are also disclosed. During the frame manufacturing process, a flat sheet of substrate is covered an one side by the wear-resistant material and, preferably, an the other side by the adherent layer. Incisions are cut through a central region of the substrate-adhered materials composite. The composite is then molded to provide the peripheral raised region and the depressed central region of the frame, with the raised surface being covered by the wear-resistant material.

A skin engaging member suitable for use in a hair removal device, said skin engaging member comprising ethyl vinyl acetate having a low level of vinyl acetate and a water soluble polymer.

A heat shield is generally provided, along with methods of making the heat shield and its use in a vehicle safety device (e.g., an airbag). In one embodiment, the heat shield includes a base substrate (e.g., a nonwoven fabric, a woven fabric, or a film); a heat resistant coating on the base substrate; and a first point-bonded sheet laminated to the heat resistant coating such that the first point-bonded sheet forms an outer surface of the heat shield with the heat resistant coating positioned between the first point-bonded sheet and the base substrate. The heat resistant coating generally comprises particles of an inorganic mineral (e.g., vermiculite, mica, or a combination thereof) dispersed within a film-forming binder (e.g., an acrylic resin, a styrene-butadiene rubber, a polyvinyl alcohol, an ethyl vinyl acetate resin, a phenolic resin, or a combination thereof).

The invention discloses a flame-retardant and antistatic EVA (ethyl vinyl acetate) foam composite material and a preparation method thereof, and belongs to the field of macromolecular composite foam materials. The flame-retardant and antistatic EVA foam composite material comprises the following components of vinyl-vinyl acetate copolymer, a composite flame retardant agent, an antistatic agent, afoaming agent AC, stearic acid, zinc stearate, zinc oxide, and dicumyl peroxide, wherein the composite flame retardant agent is graphene-coated zinc hexahydroxystannate; the antistatic agent is a nitrogen-doped graphene nanometer hollow spehre. The flame-retardant and antistatic EVA foam composite material has the advantages that by adopting the novel composite flame retardant agent and the novelantistatic agent, the excellent flame-retardant property and antistatic property are simultaneously realized; the formula is scientific and reasonable, the certain innovativeness is realized, and thetechnology process is simple and practical.

A pressed sorbent form includes a sorbent and a binder. The sorbent is chosen from the group including silica gel, molecular sieve, activated carbon, and clay. The binder is powdered ethyl vinyl acetate.

The invention relates to the field of road materials, and discloses a compound asphalt mixture wet-mixing additive and a preparation method thereof. According to the compound asphalt mixture wet-mixing additive, production and construction temperatures of a hot-mix asphalt mixture can be reduced. The compound asphalt mixture wet-mixing additive is characterized by comprising the following components in parts by weight: 20-50 parts of microcrystalline wax, 20-50 parts of stearic acid, 10-20 parts of polyethylene wax, 5-20 parts of EVA (ethyl vinyl acetate) wax and 0-10 parts of plasticizer. The preparation method comprises the following steps of: uniformly mixing the polyethylene wax, the EVA wax, the stearic acid and the plasticizer under the mechanical stirring action, then adding the microcrystalline wax, continuously stirring and uniformly mixing to obtain a mixed dry material; and finally, adding the mixed dry material in a granulating machine melting furnace, heating at a temperature of 120-130 DEG C and melting, then granulating, cooling and drying. According to the compound asphalt mixture wet-mixing additive, the blending temperature of the asphalt mixture can be effectively lowered by about 30 DEG C, and better used road performance can be ensured.

The embodiment of the invention discloses a solar cell, a packaging method of the solar cell, and an unmanned aerial vehicle employing the solar cell. The packaging method of the solar cell comprises the following steps of: providing solar cell plates; thinning the solar cell plates to form solar cell plates with preset thickness; welding the solar cell plates to form a solar cell string by a laser welding technology, wherein sections of solder strips and convergence strips in the solar cell string have an arc structure; embedding the solar cell string into ethyl vinyl acetate (EVA) adhesives; and forming the solar cell by a laminating process. The solar cell formed by the packaging method has light weight and high bending property, and the requirements of the unmanned aerial vehicle are met.

In aspects of the invention, a footwear sole can include a sole member formed of a single unitary layer, wherein the sole member is formed of a compound including ethyl vinyl acetate (EVA) and rubber. The compound can further include a bulking agent. The compound can further include a foaming agent, a color master agent and a bridging agent. The sole member can include a top surface, the top surface including a plurality of apertures defined in a rear portion of the top surface. The plurality of apertures can define a tapered shape, and a first aperture of the plurality of apertures can have a depth that is less than a second aperture of the plurality of apertures. The plurality of apertures can be arranged in a plurality of rows.

A light-weight side gusset for a bag is manufactured from a formed composite frame having a peripheral raised region and a depressed central region. An opening is formed through the depressed central region to form a relatively narrow border portion around the inner periphery of the raised region. A central panel corresponding in configuration to the outline of the depressed region is attached to the border portion of the depressed region to cover the opening therethrough. The composite frame is made up of a moldable substrate, e.g. ethyl vinyl acetate foam, an outer layer wear-resistant material, e.g., high-denier nylon or poly/nylon combination, and, preferably, an inner adherent layer, e.g., the loop half of a hook-and-loop fabric. A complete bag is assembled by securing two such gussets to the body of the bag. A drop-in liner is attached to the inner surfaces of the gussets to line the interior of the bag.