189 results about "Closed cell" patented technology

The invention provides a diaphragm and a preparation method thereof, and a lithium ion battery, the diaphragm comprises a base membrane, a composite ceramic coating and an interface layer, the composite ceramic coating contains inorganic ceramic particles and organic microcapsule particles, the organic microcapsule particles comprise a core material with a melting point range of 55-65 DEG C and a polymer shell coating the surface of the core material, and the polymer shell is coated on the surface of the core material. The polymer shell is selected from at least one of polyurethane, polyurea, polyamide and polycarbonate, the interface layer is formed by depositing an interface modification polymer on the surface of the composite ceramic coating, and the interface modification polymer is selected from at least one of polycatechol derivatives, polyaniline, polyvinyl pyridine, polyacrylic acid and polyacrylamide. The core material in the organic microcapsule particles is melted when heated to trigger hole closing at the initial stage of thermal runaway at 60-80 DEG C, the hole closing rate can reach 92%, the hole closing response time is shortened by 30%, and the porous structure of the interface layer can enhance the liquid absorption rate.

A footwear and method of manufacture wherein the present invention includes capture and acquisition of a three-dimensional volumetric scan of feet of a user wherein the scan data is employed to manufacture a customized midsole for a sandal. The present invention includes a midsole that has an upper surface and a bottom surface wherein the upper surface is formed to mateably accommodate the hindfoot, midfoot and forefoot of the wearer. The midsole is manufactured from a cork-rubber blend in a preferred embodiment and includes a opposing side to which a strap member is secured thereto. The strap member has at least one strap segment configured to extend over the top of the wearer's foot. An outsole is secured to the bottom surface of the midsole. The outsole is manufactured from a closed cell polymer foam.

A house wrap for a building comprises a reinforcing drainage plane layer configured to face the outside of the building; a breathable, non-perforated barrier film bonded to the drainage plane layer; and at least one insulating layer including a perforated expanded low density polyethylene foam layer, wherein in the expanded low density polyethylene layer at least 80% of the blowing agents are dissipated from closed cells within the expanded low density polyethylene layer, forming evacuated closed cells whereby a partial vacuum is formed within the closed cells of the low density polyethylene layer.

An ultra-stable structural laminate with fire resistance and a lateral nail pull strength from 44 to 300 pounds of force and an insulation R value from 1 to 40, the ultra-stable structural laminate of a cementitious material with a nano-molecular veneer and a foam component catalytically reacted into an expanded closed cell foam having a thickness from ⅛th inch to 8 inches, a density from 1.5 pounds / cubic foot to 3 pounds / cubic foot that self-adheres to the cementitious material forming an ultra-stable structural laminate with fire resistance and a lateral nail pull strength from 44 pounds to 300 pounds of force, an insulation R value from 1 to 40, a resistance to seismic impact for earthquakes over 3.1 on the Richter Scale, a break point from 7 lbs / inch to 100 lbs / inch; and a resistance to wind shear equivalent to a 15 mph downburst.

An expanded bead of polypropylene-based resin formed with a through hole that is defined by an inner peripheral surface and that has an average hole diameter of 1 mm or less. The expanded bead has a closed cell content of 85% or more, an average cell diameter of 50 to 300 μm and an inner surface portion that extends along the inner peripheral surface that has an average cell diameter of 5 to 150 μm which is smaller than the average cell diameter of the expanded bead.

A ventilated seat includes a cushion pad, including a plurality of air distribution holes therethrough, and having a hook-loop fastener affixed thereto; a seat bottom including a main bottom cushion; a seat back operatively engaging the seat bottom and including a main back cushion; wherein one of the main bottom cushion and the main back cushion is comprised of a closed cell foam, includes a recess that is shaped to receive and orient the cushion pad therein, a ventilation passage for directing airflow from a climate control system to the recess, and a hook-loop fastener molded into the closed cell foam in the recess; and wherein the cushion pad is secured in the recess by the hook-loop fastener of the cushion pad operatively engaging the hook-loop fastener in the recess.

To provide a cell proliferation system, proliferation method, control method, and culture medium bag capable of proliferating various adherent cells and suspension cells. [Solution] Cells are grown in a bioreactor and activated by an activator (e.g., a soluble activator complex). The nutrient supply and gas exchange functions of an automated closed cell proliferation system make it possible to seed at, for example, a low seeding density. By manipulating the parameters of the cell growth environment, cells are placed in specific locations within the bioreactor for efficient exchange of nutrients and gases. System parameters are adjusted to shear any cell colonies that may form during the proliferation phase. Metabolic concentrations are controlled to improve cell growth and viability. Cell retention within the bioreactor is controlled. In some embodiments, the cells include T cells. In other embodiments, the cells include a T cell subpopulation, for example, regulatory T cells (Tregs).

The utility model relates to the field of cell culture, and provides a closed cell culture device. The closed cell culture device comprises a first accommodating body, a second accommodating body, a pump body and a sterile pipeline on-off assembly, wherein the first accommodating body is connected with a first pipeline and is used for cell culture; the second accommodating body is connected with a second pipeline and is used for accommodating a culture medium or cell culture, and the second pipeline is connected with the first pipeline in an on-off manner; the pump body is used for extruding the outer pipe wall of the first pipeline and / or the outer pipe wall of the second pipeline; the sterile pipeline on-off assembly is used for adjusting the first pipeline and the second pipeline to be switched between a pipeline connection state and a pipeline disconnection state; the pump body is used for pumping the culture medium into the first accommodating body from the second accommodating body under the condition that the second accommodating body is used for accommodating the culture medium, and the pump body is used for pumping the cell medium in the first accommodating body into the second accommodating body under the condition that the second accommodating body is used for cell culture. The closed cell culture device is low in environment requirement and low in culture cost.

The invention relates to the technical field of polyurethane foam preparation, and discloses polyurethane foam for a heat insulation strip and a preparation method of the polyurethane foam. The polyurethane foam is prepared from the following raw materials in parts by weight: 40 to 60 parts of polytetrahydrofuran ether glycol, 10 to 15 parts of modified monomer, 1 to 5 parts of ethylenediamine, 1 to 5 parts of hydroxyethyl methylacrylate, 60 to 80 parts of diphenylmethane diisocyanate, 3 to 5 parts of modified filler, 0.3 to 0.5 part of benzophenone and 10 to 15 parts of n-pentane. Double bonds on hydroxyethyl methylacrylate can react with sulfydryl on the surface of the modified filler, then a cross-linked network is formed in the material, the foam structure is more uniform and stable by limiting molecular chain movement and reducing gas diffusion and heat conduction paths, and the closed-cell rate of the foam can be increased by matching with a multi-layer coated hollow structure of the modified filler, so that the thermal conductivity of the foam is improved. And gas diffusion is reduced, so that the long-term stable heat insulation effect is maintained.

An article and a method of manufacturing soft seating comprises a rigid, injection-molded thermoplastic substrate are disclosed. The soft seat article comprises an injection molded structural substrate element that may be over-molded with soft open cell polyurethane or other open or closed cell foam materials to create a soft chair. The soft foam outer surface may be upholstered with fabric or other traditional materials to finish the soft chair. The method of manufacturing comprises molding an inner structural shell from thermoplastic materials, encapsulating the inner structural shell in a soft foam material, optionally upholstering the outer surface of the soft foam material, and optionally providing a base

The invention relates to a medical device for treating aneurysms, in particular a stent, including a compressible and expandable grid structure made up of grid elements. The grid structure has at least one closed cell ring which includes at most 12, in particular at most 10, in particular at most 8, in particular at most 6 cells directly adjacent to one another in a circumferential direction of the grid structure. The grid structure is provided at least in certain portions with a covering made of an electrospun fabric which has pores of irregular sizes. The covering includes over a surface area of 100 000 μm2 at least 10 pores which have a size of at least 15 μm2. The covering has a biocompatible, in particular antithrombogenic and / or endothelialization-promoting coating.

The invention belongs to the field of refractory materials, and provides a light heat-insulating refractory brick and a preparation method thereof. The light heat-insulating refractory brick comprises particles, mixed powder and an additional binding agent, the particles comprise, by weight, 10-15 parts of expanded vermiculite and 30-45 parts of closed cell perlite, and the mixed powder comprises, by weight, 15-25 parts of spherical quartz powder and 5-15 parts of perlite dust collecting powder. The raw materials comprise, by weight, 5-10 parts of waste silica brick powder, 5-10 parts of siliceous pyrophyllite powder, 10-15 parts of Jiaozhou white clay, 5-15 parts of sodium montmorillonite powder and 5-15 parts of limonite powder; the additional binding agent comprises the following raw materials in parts by weight: 3-5 parts of binding slurry and 3-5 parts of pre-gelatinized starch. The refractory brick disclosed by the invention is a light heat-insulating refractory brick which is small in volume density, small in heat conductivity coefficient and capable of meeting the requirement of heat insulation in a high-temperature kiln at 900-1000 DEG C in normal-temperature compressive strength.

The invention belongs to the technical field of thermal insulation foaming materials, and particularly relates to an in-situ closed-cell foaming material as well as a preparation method and application thereof. The in-situ closed-cell foaming material is prepared from the following raw materials through foaming and curing reactions: 40-60 parts by weight of a melamine prepolymer; 40 to 60 parts by weight of isocyanate; 1-5 parts by weight of a hydrolysable silane compound; 0.05 to 0.3 part by weight of a catalyst; 5-15 parts by weight of an inorganic cementing material; 1-10 parts by weight of a physical foaming agent; the content of bound water in the melamine prepolymer is 2.0 to 5.0 weight percent. The in-situ closed-cell foaming material provided by the invention has excellent thermal insulation performance, high specific strength and excellent waterproof, moisture-proof and anti-seepage performance, and the combustion performance grade is A2.

To provide a rubber for metal removal that is usable for removing molten metal from a heating tool without water wetting and that enables easy removal of metal remaining on a surface, and to provide an isolated-cell rubber serving as a base for the same and a method for producing the isolated-cell rubber.SOLUTION: An isolated-cell rubber 10 (or isolated-cell rubber) including a cured silicone rubber 11, wherein a plurality of isolated cells 13, each having at least one particle 12 disposed inside, are formed in the cured silicone rubber 11, and a water-soluble substance is dispersed therein.SELECTED DRAWING: Figure 1

The present disclosure relates to physically crosslinked closed cell continuous multilayer foam structures comprising at least one foamed polypropylene / polyethylene layer having a TPU overlay. A multilayer structure comprising at least one layer of a foam composition and at least one layer of a cover composition may be co-extruded, the co-extruded structure is irradiated with ionizing radiation, and the irradiated structure is continuously foamed.

This invention relates to the field of aluminum foam technology and discloses a method for producing closed-cell aluminum foam by blowing, comprising the following steps: (1) raw material preparation; (2) aluminum melt preparation; (3) foam stabilizer mixing; (4) blowing foam; (5) cooling and shaping. This invention forms a closed-loop control system throughout the entire process by orderly coordinating key links such as coating foam stabilizer, melt purification and activation, pre-dispersion mixing, dynamic temperature and pressure foaming, and gradient cooling and shaping: the coating foam stabilizer provides a stable bubble core, the purified and activated melt provides a strong pore wall matrix, pre-dispersion and composite stirring ensure uniform distribution of bubbles throughout the entire area, dynamic temperature and pressure and vibration achieve precise bubble growth, and gradient cooling ensures a stable final structure without cracks. Each step supports and reinforces the others, forming a continuous, uniform, and complete closed-cell network inside the aluminum foam, significantly improving the closed-cell rate, pore size uniformity, and compressive mechanical properties.

The application provides a shell-shaped product with a cavity, a forming die and a preparation process, wherein the shell-shaped product comprises a main body part, the main body part comprises a bottom wall, a side wall and an opening opposite to the bottom wall, the bottom wall and the side wall are combined to form the cavity, the opening is connected with the cavity and an external space of the shell-shaped product, the main body part is integrally formed by a thermoplastic elastomer base material mixed with a supercritical fluid through a supercritical injection foaming forming process, and the closed cell rate of the main body part ranges from 10 to 99%, and the pore diameter ranges from 20 to 300 microns. The supercritical foaming process is adopted to realize the integral forming of the shell-shaped product, the process is simple, and production is efficient; the upper limit of the high closed cell rate and the micron-level pore diameter distribution can further improve the mechanical strength of the foaming material, and the obtained shell-shaped product can simultaneously have the characteristics of ultralow self-weight, natural waterproofness and strong mechanical performance, thereby providing a new idea for the manufacturing of products such as bags and the like.

Foam compositions comprising an inorganic resin matrix or a polymer-derived ceramic matrix are provided, as well as methods of fabricating the same. The foams may or may not contain additional functional fillers to control mechanical and / or thermophysical properties. The foam materials can include a novel combination of tailorable inorganic siloxane resins with unique fillers, and unique methods of producing the desired porosity. Unlike related art foams, the foams of embodiments of the subject invention can be inorganic-resin-based, and can be closed cell foams or semi-closed cell foams.

The invention discloses a high-flame-retardant EVA (Ethylene Vinyl Acetate) foaming material and a preparation method thereof, and relates to the technical field of high polymer materials. The high-flame-retardant EVA foaming material is prepared from a coated functional filler, a nitrogen-doped graphene-like carbon / cobalt nano composite material, EVA, stearic acid, zinc stearate, zinc oxide, a foaming agent AC and dicumyl peroxide, a core-shell combined filler composed of a coated functional filler and a nitrogen-doped graphene-like carbon / cobalt nano composite material is uniformly distributed in an EVA three-dimensional network cross-linked matrix to form a porous material with a uniform closed cell structure, so that the flame retardant property is improved by virtue of a physical barrier effect and a catalytic carbon formation mechanism, and an efficient and stable conductive network is also constructed; the antistatic performance is optimized, and the application range of the EVA foaming material is widened.

In some embodiments, a dressing can include a treatment device configured with a central hub and a plurality of legs extending outwardly from the central hub. In some embodiments, the central hub and the legs can collectively constitute a treatment manifold configured to minimize tissue ingrowth. For example, the treatment manifold can include closed cell foam. In some embodiments, the treatment manifold can be unencapsulated. For example, a single film layer can be attached to a first surface of the treatment manifold, while an opposite surface of the manifold can be exposed and / or uncovered. Other devices, dressings, systems, and methods are also disclosed.

A multilayer foam film comprising high density polyethylene for direct and non-direct food contact and aseptic packaging application is disclosed. In an embodiment, the film has a bulk density of less than 0.962 gr / cm3 wherein more than 50% of the cells in the foam layer are closed cells. In an embodiment, the foam films are thick (generally more than 8 mils thick) and have a bending stiffness value of more than 18, in Taber stiffness unit configuration according to TAPPI / ANSI T 489 om-15, and the ratio of the mass per unit area (the mass of a unit area of the film in gram per meter-squared (gr / m2)) over the stiffness value in Taber unit configuration is equal to or less than 13. In an embodiment, the film has a very smooth surface with a smoothness value of less than 25 in Sheffiled smoothness unit configuration according to TAPPI T 538. The described foam film can have a water vapor transmission rate value of less than 1 gr / m2 / 24 hr, according to ASTM E398-13. The described foam film can have an oxygen transmission rate value of less than 10 cc / m2 / 24 hr, according to ASTM D3985.

The application relates to the technical field of cell culture, and discloses a fully-closed cell culture device, which comprises a three-dimensional culture bin, the inside of the three-dimensional culture bin is provided with a main culture space, the three-dimensional culture bin and a closable bin door structure are combined, the bin door structure comprises a lifting sealing door arranged on the front side of the culture bin body and a switchable partition located in the inside of the culture bin body, and the switchable partition divides the culture space into a plurality of array-arranged culture areas; the device adopts a square three-dimensional culture bin structure, fully utilizes the space geometric characteristics, realizes the maximized utilization of the internal culture space under the same land area, the square structure facilitates the array-arranged culture areas in the horizontal and vertical directions, improves the integration and loading density of the equipment, and significantly enhances the culture flux, so that an efficient and intensive physical platform is provided for multi-batch and large-scale cell culture.

The invention provides a floating platform for solar panel arrays, comprised of at least one modular unit, comprising: a photovoltaic solar panel array; a pair of essentially triangular floats, having an angled upper side, for supporting said photovoltaic solar panel array at an angle; support bars connected above said floats and perpendicular to said angled upper side of said floats, supporting said photovoltaic solar panel array above said floats.In some embodiments, the float may have an angled underside to provide buoyancy and rocking movement upon water. In some embodiments, the float is made of closed cell polyethylene foam.

Resin particles have closed cells inside and have a volume-average particle size of 1 μm or more and 30 μm or less, the closed cells have an average long axis length of 0.1 μm or more and 2.0 μm or less, and a closed cell porosity is 1% or more and 40% or less.

The present application relates to a treadmill noise reduction mute method, a buffer pad body is arranged between a running plate and a frame, the buffer pad body is composed of a buffer pad base body with an axial cavity inside and a shock absorbing filler filled in the axial cavity of the buffer pad base body, the buffer pad base body is made of a low noise TPS elastomer composite material, the low noise TPS elastomer composite material includes the following weight parts 30-50 parts of butenyl-polydiene-styrene block copolymer, 15-25 parts of polypropylene, 30-50 parts of naphthenic oil, 5-15 parts of nano filler, 3-8 parts of plasticizer, the low noise TPS elastomer composite material has a uniform closed cell microcellular structure with a pore size of 50-200 mu m inside. The buffer pad made of the material has excellent shock absorbing and noise reduction performance, and can effectively solve the problems of limited damping performance of traditional rubber materials and easy permanent deformation.

The application relates to a foamed metal plate, a composite plate, a preparation method and a battery box, wherein the foamed metal plate comprises modified closed-cell foamed metal and a phase change material; the modified closed-cell foamed metal is provided with a plurality of closed cells and a plurality of semi-closed cells arranged on the surface of the modified closed-cell foamed metal; a plurality of holes are arranged on the cell walls of the closed cells and the semi-closed cells; the holes are used for connecting adjacent closed cells, adjacent semi-closed cells and adjacent closed cells and semi-closed cells; and the phase change material is filled in the closed cells, the semi-closed cells and the holes. The modified closed-cell foamed metal is used as a base material, the phase change material is filled in the connected closed cells and semi-closed cells in the modified closed-cell foamed metal, and the foamed metal plate has good energy absorption effect and heat conductivity.

Described herein are methods of preparing continuous polyolefin textiles laminated to a physically crosslinked, closed cell continuous foam sheet. The methods can include extruding a foamable sheet through a nip while simultaneously feeding a polyolefin textile into the nip to laminate the textile to the foamable sheet, irradiating the laminate, and foaming the laminate

A repositionable frame system includes a frame component for holding an image substrate and having a rear face. The system further include a frame mount that is fixedly attached to the rear face of the frame component. The frame mount comprises a first magnetic element. The system also includes a repositionable wall pad for placement on a support surface and configured to detachably couple to the frame mount. The wall pad includes a cross-linked closed cell polyethylene foam having a first face that faces away from the frame mount and an opposite second face that faces the frame mount. The wall pad further includes a removable transfer adhesive layer disposed directly along the first face, a permanent transfer adhesive layer disposed directly along the second face, and a second magnetic element that is magnetically attracted to the first magnetic element.

A disinfecting cap for connection to a medical connector is described, the disinfecting cap comprising a housing having a top wall and a side wall forming a chamber, an open cell foam structure disposed within the chamber, and a closed cell foam structure disposed against the open cell foam structure, the closed cell foam structure has an interference fit between the closed cell foam structure and the inner surface of the housing. The closed cell foam structure may have a polygonal or star shape in which fluid may flow through a gap formed between the closed cell foam structure and an inner surface of the chamber. The open cell foam structure may be impregnated with a disinfectant whereby compression of the open cell foam structure upon insertion of the Luer connector causes the disinfectant to exit.

Absorbent articles are disclosed that, in one embodiment, can comprise feminine hygiene products. The absorbent articles can include a multi-zone absorbent substrate that is placed between a liquid permeable liner and a liquid impermeable baffle. An embossing pattern extends through the liner and into the absorbent substrate. The embossing pattern includes a plurality of closed cell structures that form liquid absorbent pillows.