3351 results about "Resin coating" patented technology

Coated particles made of particulate substrates having a coating of resin and fibrous material are provided for use in subterranean formations. The coated substrate particles are proppants useful to prop open subterranean formation fractures. The coated substrate particles are also useful for sand control, that is, acting as a filter or screen to prevent backwards flow of sand, other proppants or subterranean formation particles. Methods of making the coated particles are also disclosed.

The present invention is directed to disposable composite downhole tool formed of a resin-coated fiber. The fiber is formed of a degradable polymer, such as a poly(lactide) or polyanhydride. The resin is formed of the same degradable polymer as the fiber. It chemically bonds to the fiber, thereby making a strong rigid structure once cured. The fiber may be formed into a fabric before being coated with the resin. Alternatively, the fiber is formed of a non-biodegradable material.

Improved methods and compositions for consolidating proppant in fractures formed in subterranean zones are provided. An improvement of this invention comprises using proppant particles having a coating of hardenable resin including a gel breaker. The gel breaker facilitates removal of gelled carrier fluid from the surface of the proppant particles.

A water-soluble resin composition comprising (1) a water-soluble resin, (2) a water-soluble crosslinking agent, (3) at least one of surface active agents selected from acetylene alcohols, acetylene glycols, polyethoxylates of acetylene alcohols and polyethoxylates of acetylene glycols, and (4) a solvent consisting of water or a mixture of water and a water-soluble solvent. This water-soluble resin composition is applied onto a resist pattern, then heated to crosslink by an acid supplied from the resist, followed by development to remove the non-crosslinked water-soluble resin coating layer. This water-soluble resin composition is excellent in coating characteristics on steps of resist patterns and in dimensional regulation upon fining of patterns so that resist patterns such as trench patterns and hole patterns can effectively be fined.

A matt surface (7) of a display screen (2) is converted to an optically flat surface (11), for example, via an epoxy resin coating (10) or the like which has a refractive index equal to that or the matt surface (7). Alternatively, the matt surface (7) may be removed from the screen (2), and replaced with an optically smooth surface. The matt surface may be a diffusive surface (7) formed on a birefringent film (6) of an LCD screen (2). The display screen (2) is the front screen of a multilevel three-dimensional display comprising layered screens (2, 3), and altering the surface from matt to flat reduces the blurring of displayed images.

Plastic beads, including polyamides and polystyrene beads crosslinked with divinylbenzene, having a curable resin coating are highly useful for sand control and / or hydraulic fracturing of subterranean. The curable resin coated plastic beads preferably have an apparent specific gravity less than about 1.5.

This invention relates to a conductive roller such as a developing roller, a charging roller or the like provided with a resin coating calyer on a surface of an elastic layer, and more particularly to a conductive roller having the resin coating layer using an ultraviolet-curing type resin or an electron beam curing type resin and being obtained by contriving a structure of the resin coating layer, rendering the resin coating layer to contain microparticles, controlling the particle size of the microparticles, or forming the resin coating layer after the outer peripheral surface of the elastic layer is subjected to surface treatment.

The invention provides an epoxy resin-oxidized graphene composite coating. The composite coating is prepared by using oxidized graphene as a packing and adding the packing to epoxy resin coating. A coating layer prepared on the surface of a matrix by utilizing the composite coating is excellent in binding force of the matrix, and further greatly improved in corrosion resistance, so as to effectively obstruct a corrosive medium from penetrating from the surface of the coating layer to the path of the matrix. Therefore, the epoxy resin-oxidized graphene composite coating is good in application prospect, and in particular suitable for the matrix in a highly-corrosive severe environment.

The invention provides a knitted surface fastener made of warp knitted fabric, which eliminates necessity of resin coating for fixing a base portion of a pile loop and fusion between yarns, securing flexibility and ventilation proper to knitted fabric wherein, in a base fabric of a surface fastener, wales are formed with at least chain knitting yarns and the respective wales are connected including at least weft in-laid yarns, engaging element loops are formed of first and second engaging element forming yarns striding over two or more wales and the respective engaging element forming yarns are knitted into at least three adjoining courses on a same wale in a zigzag shape, at this time, the first and second engaging element forming yarns are knitted into adjoining same stitches of at least two or more courses of the same wale in the zigzag shape.

The present invention concerns a quantitative organic vapor-particle sampler which can efficiently sample both semi-volatile organic gases and particulate components through the use of a unique sorbent resin coating and process. The sampler of the present invention comprises in its broadest aspect a tubular device having an inlet at one end through which organic vapor / particles are introduced, an outlet at the other end through which gases exit, at least one annular denuder interposed there between which is coated on the inside surface of the annulus with a specially prepared resin absorbent, which selectively absorbs organic vapors contained in the gases introduced into the inlet, and a filter which traps and collects particles. The invention further concerns a semi-volatile organic reversible gas sorbent for use in an integrated diffusion vapor-particle sampler comprising macroreticular resin agglomerates of randomly packed microspheres with the continuous porous structure of particles ranging in size between 0.05-10 mum.

The invention provides a novel epoxy coating and a preparation method thereof. The coating not only has excellent corrosion resistance, but also has excellent compatibility with a base material or a lower coating film, particularly an epoxy coating, a polyurethane coating, a fluorocarbon coating or an alkyd resin coating. The epoxy coating comprises a main paint and a curing agent, wherein the main paint contains bisphenol A epoxy resin and modifying resin for modifying the bisphenol A epoxy resin; and the curing agent contains polyamino amide and cardanol modified phenolic amine.

A high-performance organic-inorganic hybrid acrylate resin coating material and its production are disclosed. The process is carried out by taking inorganic nanometer oxidant collosol containing hydroxyl group and alkoxy as curing agent, reacting with acrylate resin containing functional group, cross-linking and curing to obtain inorganic-organic hybrid coating. It achieves higher hardness, better thermal stability, abrasive and scraping-resistances and ultraviolet shielding characteristic. It can be used for surface protective ornament of car, metal, building, leather and fabric.

The invention relates to anti-pollution anti-aging rustless steel coating material and a process for preparation, and coating material comprises acroleic acid resin, film forming matter, filling material, dissolvent and auxiliary agent which are mixed, the film forming matter comprises fluoro containing resin, water-based polyurethane and epoxide resin, the filling material comprises nanometer silicon oxide. The process comprises dissolving acroleic acid resin in dissolvent, further adding film forming matter, filling material, and auxiliary agent, balling to evenly mix. The rustless steel coating material of the invention adopts nanometer silicon oxide and fluoro containing resin to modify acroleic acid coating material, utilizes the ultraviolet screening performance of nanometer silicon oxide, the particle diameter of nanometer-grade particle and low surface tension of fluoro containing resin to lead the anti-aging capability and anti-ultraviolet performance of acroleic acid resin which is prepared to be greatly enhanced, the invention has longer life span than the existing normal acroleic acid resin coating material, which has better fingerprint resisting effect, and the quality and the level are greatly improved, the scope of application is further enlarged.

The invention discloses closed type ultraviolet light solidifying waterborne polyurethane resin and a method for preparing the same. The polyurethane resin and the method are characterized in that the double bond of acrylic ester is introduced to the side chain of the polyurethane by utilizing a chain extender mode, and an end NCO group is sealed and protected by a sealer; and the side chain of a molecular chain of the obtained product has the double bond of an acrylic ester group, wherein the double bond is capable of ultraviolet light solidifying, and the end of a molecular main chain of the product has an unsealable sealer group. The polyurethane resin has the advantages of good storage stability and high hardness after solidification, and further improves the solidifying degree and the adhesive force of a solidifying film and is applied to the coating of workpiece shadow areas, thicker coatings and three-dimensional parts which are hard to penetrate by ultraviolet light. Because the resin coating film is subjected to triple solidification of natural drying solidification, ultraviolet solidification and unsealing-hot solidification, the resin coating film has the advantages of high solidifying degree, high hardness and high adhesive force of base materials. The product of the invention is obviously environmental friendly, and can be widely applied in fields of thick coatings of various base materials and an adhesive.

A transferable image for water-slidable application to surfaces is provided comprising a water-absorbing Porous Backing Sheet; a water-soluble Resin Coating coated on the water-absorbing Porous Backing Sheet; a base layer on the water-soluble Resin Coating; and a plurality of ink layers on the base layer, at least one of the ink layers being translucent or transparent and applied in overlapping fashion in a manner to provide a color effect. In preferred embodiments, a transfer premask is provided wherein the transfer premask is substantially no wider than about 0.25 inches than the perimeter of the image shape.

The invention discloses a normal-temperature cured fluorocarbon resin coating, which consists of the following components in percentage by weight: 35 to 70 percent of tetrafluorochloroethylene-vinyl ester polymer, 5.5 to 12 percent of curing agent, 2 to 10 percent of coupling agent, 1 to 10 percent of pigment, 1 to 30 percent of hydrophobic particles, 0.03 to 3 percent of aid, 20 to 40 percent ofsolvent and 0.001 to 1 percent of catalyst, wherein the coupling agent is fluorosilane with a -CF3 group and a -CF2 group; the aid is a flatting agent, an antifoaming agent and a dispersing agent; the solvent is butyl acetate and methyl isobutyl ketone; the catalyst is dibutyltin dilaurate; and the curing agent is aliphatic diisocyanate. By adopting a specific coating formula, due to the combinedaction of the fluorosilane coupling agent and the hydrophobic particles, the anti-pollution flashover fluorocarbon resin coating has a static contact angle theta of 120 degrees, is excellent in hydrophobic performance and hydrophobic migration property, high in anti-pollution flashover performance, high in coating leveling property, smooth in surface, and high in self-cleanliness, chemicals resistance and hot-water resistance, and has an adhesive force reaching a zero level.

A water epoxy resin paint is prepared from one of low-molecular liquid epoxy resin, the ether solution of epoxy resin and epoxy resin emulsion, and the solidifying agent prepared from polyvinylpolyamine through terminating, addition and salting. Its advantages are high hardness, adhesion and resistance to water and corrosion.

The nano composite water-base epoxy resin coating material comprises: epoxy constituent composed of epoxy resin, active diluent, nano SiO2 particle, and silane coupling agent; and water-base amic curing agent constituent composed of water-base amic curing agent, wet dispersant, defamer, paint, filler, film-forming adjuvant, thickener, and water. This invention also discloses opposite preparation method, improves greatly product properties, and has no pollution.

A first metal housing member 111 is provided with a bottom plate part 1111 and a resin coating layer 1112 formed on a lower surface of the bottom plate part 1111. To a board mounted part 1113 which is a metal surface exposed part exposed from the resin coating layer 1112 around a housing through hole 113, an FPC 114 is mounted via an adhesive layer 115. A lead wire 1413 of a stator windings 1414 that is inserted in a board aperture 1144 is connected to the FPC 114 by a sealing material 117 as a solder and the board aperture 1144 is covered with the sealing material 117 to seal the housing through hole 113. A motor unit 10 can securely seal the housing through hole 113 by enhancing adhesiveness between the FPC 114 and the first metal housing member 111.

Fabric and reinforcements are provided by this invention which, in a first embodiment, include a plurality of warp yarns having a first twist (turns / inch) and a plurality of weft yarns having a second twist which is greater than the first twist. A coating is applied over a substantial portion of the warp and weft yarns after they are assembled or laid together, so as to produce a weight distribution ratio of less than about 2.0:1, based upon the weight of the resinous coating of the weft yarns over the weight of the resinous coating on the warp yarns. This can be achieved, in substantial part, due to the difference in the twist ratios of the warp and weft yarns, which difference permits a more uniform coating to be applied. Further embodiments of this invention include a cementitious board and methods of making a coated fabric and cementitious board.

Water-based, substrate treatment compositions contain (A) at least one chitosan selected from chitosan and a chitosan derivative, and (B) a metal compound containing at least one metal selected from Ti, Zr, Hf, Mo, W, Se, Ce, Fe, Cu, Zn, V and trivalent Cr. In particular, the water-based, substrate treatment compositions can improve the interlayer adhesion between metal materials and resin coating layers such as films or coatings, and can also improve the corrosion resistance and solvent resistance of such metal materials.

A wheel speed sensor includes a hall IC that outputs a signal representing a change of magnetic field generated by rotation of a detection object and that is simply covered with resin coating. In the process of molding the resin coating, a resin injection opening is positioned away from an end face of a sheath of a cable to be coated by a length no less than a minimum adhesion length for ensuring adhesion between the sheath and the resin coating. In addition, the holder and a cover of the detector are provided with waterproof protrusions extending along the entire peripheries of contact areas in which pressing pins are brought into contact with the holder and the cover. Accordingly, immersion of the detector is reliably prevented even when a void or the like occurs in the resin coating at a position near the injection opening.

The invention relates to a urea-formaldehyde resin coated epoxy acrylic resin microcapsule for a resin-base self-repair coating and a preparation method thereof. The preparation method is characterized by comprising the following steps: adding capsule core raw materials epoxy acrylic resin and acrylate reactive diluent into a water solution containing an emulsifier and a defoaming agent, dispersing the capsule core with a homogenizer or emulsifying machine to form a stable emulsion; regulating the pH value of the stable emulsion system to 2-3, adding capsule wall raw materials urea, formaldehyde and crosslinking agent, stirring until the capsule is formed, and after the reaction finishes, regulating the pH value of the system to neutral; and repeatedly washing with hot water and acetone, centrifuging, and carrying out vacuum drying to obtain the epoxy acrylic resin microcapsule. The capsule provided by the invention has the advantages of favorable sealability, regular sphericity, controllable grain size and controllable capsule wall thickness, and can be widely used for self-repair of a UV-cured acrylic resin coating or epoxy resin coating at low temperature and room temperature, thereby prolonging the service life of the coating material and widening the application range of the resin-base coating.

A process for making an optical compensator, comprising the steps of coating a orientable resin in a solvent onto a support; drying the resin-containing coating; orienting the resin-containing layer in a predetermined direction; coating a nematic liquid-crystal compound in a solvent carrier onto the orientation layer; drying the nematic liquid-crystal-containing coating; thermally treating the nematic liquid-crystal compound layer, cooling the nematic liquid-crystal compound layer, polymerizing or curing the anisotropic nematic liquid-crystalline layer to form an integral component; and optionally repeating the above steps on top of the integral component so that the optical axis of the first anisotropic nematic liquid-crystal layer is positioned orthogonally relative to the respective optical axis of the second anisotropic nematic liquid-crystal layer about an axis perpendicular to the plane of the support.

A high-performance fiber reinforced film composite material comprises a bonded fabric and a resin coating layer on the surface of the boned fabric and is characterized in that the boned fabric takes high-strength fiber with the yarn count of 200-600D as warp or weft; the weaved warp and weft density is 22*22-27*27; the boned organization structure is a plain weave or a square grid organization or bi-axial warp-knitting (the warp and weft density is 18*18-18*20) structural fabric; the resin coating layer is characterized in that at least one surface out of two surfaces of the boned fabric is coated by the resin layer with a combination process of clearance coating and transferring coating; the resin layer comprises 85-90 parts of thermoplastic resin, 1-5 parts of nano-inorganic additive and 5-10 parts of organic modifier. The composite material is characterized in that the surface density is less than or equal to 280g / m<2>, the warp and weft elongation breaking strength is 750-1000N / cm, the warp and weft incision tearing strength is 750-850N and the elongation at break is less than or equal to 5%; furthermore, the composite material has the advantages of good weather-resistance and temperature-resistance and self-cleaning performance, strong flexibility and anti-fatigue, and being capable of high-frequency heat sealing; and the peeling strength (fabric / adhesive) is more than or equal to 2500N / m.