5104 results about "Spray coating" patented technology

Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.

The invention discloses a highly-wear-resistant super-hydrophobic composite coating and a preparation method thereof. The preparation method includes the steps that the surface of a base is coated with hydrophobic resin primer containing compound micropowder through a brush coating or spray coating method, the surface of the resin primer is sprayed with hydrophobic organic/inorganic hybrid nano-paint after semi-curing, and the highly-wear-resistant super-hydrophobic composite coating is obtained after complete curing. The highly-wear-resistant super-hydrophobic composite coating and the preparation method thereof have the advantages that equipment and the process are simple, operation is easy and cost is low, and have the industrial mass production prospect. The prepared super-hydrophobic composite coating can be applied to various hard/soft bases such as glass, copper, aluminum, stainless steel, exterior wall tiles, wood, paper and cloth and can bear damage of external force such as sanding.

The present invention relates to an absorbent structure suitable in, or being an adult or infant diaper or feminine hygiene article, comprising a water-absorbing material comprising water-absorbing particles that comprise a film coating, comprising an elastic film-forming polymer and an antioxidant. The invention also relates to an absorbent structure comprising a water absorbent material obtainable by a process of: a) spray-coating water-absorbing polymeric particles with an elastic film-forming polymer in a fluidized bed reactor at a temperature in the range from 0° C. to 150° C. and b) heat-treatment of the coated polymeric particles at a temperature above 50° C., wherein in step a) and/or b) an antioxidant is added.

Methods and devices arising from the practice thereof for making and using battery electrodes formed onto ion permeable, electrically non-conductive substrates, preferably battery separators are disclosed herein. Electrodes are formed onto substrates using a variety of methods including, but not limited to, spray coating and electrophoretic deposition. Electrically conductive layers may be applied to the electrode coating layer side opposite or adjacent to the substrate to act as current collectors for the battery. Multilayer devices having alternating layers of conductive layers, electrode layers and substrates, wherein the conductive layers may be in electrical communication with other conductive layers to form a battery.

The invention discloses fully-automatic spray coating equipment, which comprises a ground track type conveying chain, a cooling and dedusting device, a spray coating system, an infrared curing furnace, a cooling furnace, an ultraviolet curing furnace, an automatic discharging mechanical arm, an air supply and exhaust system and a control system. The ground track type conveying chain winds along awaist-like line and conducts closed circulating conveying of workpieces; the cooling and dedusting equipment cools and dedusts the workpieces; the spray coating system performs spray coating on the workpieces; the infrared curing furnace performs the infrared curing of the spray-coated workpieces; the cooling furnace is used for cooling the workpieces; the ultraviolet curing furnace is used for ultraviolet curing of the workpieces; the automatic discharging mechanical arm catches and unloads the workpieces; the air supply and exhaust system is arranged above the ground track type conveying chain and is used for supplying air to and exhausting all equipment; and the control system is electrically connected with all components and controls the operation of the components. The high automation degree of the fully-automatic spray coating equipment is high, the spraying effect of the fully-automatic spray coating equipment is desirable, and when the fully-automatic spray coating equipment is used, production space can be saved greatly.

The invention relates to a three-layer nanometer fiber composite lithium ion battery diaphragm and a preparation technology of the three-layer nanometer fiber composite lithium ion battery diaphragm. The battery diaphragm comprises a middle layer, a first outer layer and a second outer layer, wherein the first outer layer and the second outer layer are respectively positioned at the two sides of the middle layer, the first outer layer and the second outer layer are static spinning spray coating layers, and the middle layer is combined with the first outer layer and the second outer layer through hot pressing. The porosity of the battery diaphragm is between 40 percent and 70 percent, and the middle layer is used as a support body and has high mechanical intensity. The first outer layer and the second outer layer are made of different materials from the middle layer and are used as functional layers to ensure that the materials have specific chemical and physical characteristics. A great amount of materials can be efficiently prepared by adopting the high-flow-rate static spinning technology and equipment. The material is used as the high-performance lithium ion battery diaphragm, can be applied to miniature and power lithium-ion batteries, and realizes the effects of reducing the battery internal resistance, prolonging the service life of the batteries, improving the charging and discharging performance and the like.

Disclosed herein is the use of activated carbon in amounts as low as 0.03% by wt. to control odor combined with a color-masking agent in traditional litter compositions. Powdered activated carbon (PAC) having a mean particle diameter less than 500 μm is preferred. The color-masking agent and activated carbon can be incorporated into the litter composition by dry blending, agglomeration or spray coating.

A biodegradable antithrombotic conjugate having heparin and other anti-thrombotic moieties are introduced as side chains to the polymer backbone modified by click chemistry. Various bioabsorbable monomers and dimers such as valerolactone may be used in the monomer derivation, homo- and co-polymerization, and the conjugation with a biologically active molecule by click chemistry. A coating comprising a biocompatible and bioabsorbable polymer anti-thrombotic conjugate is applied to at least a portion of an implantable device to prevent or reduce the formation of thrombosis on the surface of the implantable device. A first or sub-layer of the coating is prepared by mixing a polymeric material and a biologically active agent with a solvent, thereby forming a homogeneous solution. A second or outer layer comprising the present anti-thrombotic conjugate may be applied over the inner drug-containing layers using, for example, a dip coating or spray coating process.

The invention discloses a method for producing three-dimensional matter via plating layer-to-layer, which comprises following steps: building a computer solid model of three-dimensional matter to be sliced and layered; the computer controls the operation of printing injector and injecting UV liquid material according to the molding information of each layer to be solidified via ultraviolet light to form a layer with the same shape and strength of molding information; injecting support material in the non-injected area as support; adhering each layer to produce designed three-dimensional matter; removing filled support material of each layer to attain the three-dimensional matter of said computer solid model. The invention can quickly, reliably, and safely produce complex three-dimensional matter and composite color three-dimensional matter with lower cost. Wherein, the molding material in said invention is innocuous, therefore, the invention can be used in office.

This invention relates to blades for a gas turbine engine, said blades having an inner end adapted for mounting on a hub and a blade tip located opposite the inner end, and wherein at least a portion of the blade tip is coated with a thermally sprayed coating of a high purity yttria or ytterbia stabilized zirconia powder, said thermally sprayed coating having a density greater than 88% of the theoretical density with a plurality of vertical macrocracks substantially homogeneously dispersed throughout the coating in which a cross-sectional area of the coating normal to the blade tip exposes a plurality of vertical macrocracks extending at least half the coating thickness in length up to the full thickness of the coating and having from about 5 to about 200 vertical macrocracks per linear inch measured in a line parallel to the surface of the blade tip and in a plane perpendicular to the surface of the blade tip, and said high purity yttria or ytterbia stabilized zirconia powder comprising from about 0 to about 0.15 weight percent impurity oxides, from about 0 to about 2 weight percent hafnium oxide (hafnia), from about 6 to about 25 weight percent yttrium oxide (yttria) or from about 10 to about 36 weight percent ytterbium oxide (ytterbia), and the balance zirconium oxide (zirconia).

The present invention discloses a crawler multicup wall-lcimbing robot. The described robot incldues main body using vacuum cup and crawler multicup drive/conversion mechanism as main body, and cleaning mechanism using backpitch structure rolling-brush and water-recovering device as main component. Said robot is suitable for cleaning and spray-coating high-rice building, specially for cleaning high-rise building glass curtain wall.

A system and method for the electrostatic spray application of a coating material onto a medical device. The coating material is electrically charged and an atomizer is used to atomize the coating material, creating electrically charged droplets which coat the medical device. In alternate embodiments, a swirl atomizer, a pressure atomizer, an ultrasound atomizer, a rotary atomizer, and an effervescent atomizer are used to atomize the coating material.

The invention discloses polyimide foam and a preparation method thereof. Aromatic dianhydride and/or aromatic acid ester, alcohol with low molecular, a catalyst and a surface active agent are mixed proportionally in a polar solvent and react so as to form foam precursor solution. The foam precursor solution and isocyanate react in a mould and freely foam into a foam intermediate. The intermediate is solidified by microwave radiation or/and oven heating to obtain solid polyimide foam. The preparation process has short path, simple technology, good stability for storage of the foam precursor solution, adaptation to processing technologies of pouring, spray coating, extrusion, and the like, no occurrence of defects of cracked foam, foam combination, subsidence and incomplete amination, low preparation cost as well as uniform hold diameter and stable performance of the solid polyimide form, and is convenient for popularization and application.

The invention discloses a refractory spray coating with high steel fiber content and a spraying method thereof, which belong to the technical field of refractory materials. The method comprises the following step of: 1, pneumatically conveying the refractory spray coating to a nozzle, adding water onto the nozzle, and spraying and bonding the coating on a wall; or 2, adding water or a liquid bonding agent into the refractory spray coating, stirring the mixture into mortar, conveying the mortar to the nozzle by a pumping method, spraying the mortar out of the nozzle by using high-pressure air,and bonding the mortar on the wall. The refractory spray coating comprises the following ingredients in part by weight: 30 to 80 parts of refractory aggregate, 30 to 50 parts of refractory powder, 5 to 20 parts of bonding agent, 0.5 to 15 parts of additive and 3 to 80 parts of steel fiber. The invention has the advantages that: by spraying the refractory spray coating on a blast furnace cooling wall, spraying on a blast furnace throat steel brick, spraying on various refractory linings with cold faces and hot faces and repairing, the service life of the refractory material for the inner wall of a blast furnace can be greatly prolonged, and the effects of protecting the environment, saving energy and reducing consumption are achieved.