109results about How to "Good substrate adhesion" patented technology

The invention is a medical implantable device which is coated by the method according to the invention. The surface of the substrate used for the implantable device, in the raw condition, following a cleaning regime and physiochemical pretreatments, is coated using a biomimetic process in a supersaturated calcium phosphate solution (SCPS) to obtain the desired coating coverage and morphology maintaining a ratio of calcium to phosphorus pH, as well as solution temperature plays a major role in yielding precipitation of the proper phase of CaP so that composition, morphologies, crystal structures, and solubility characteristics are optimal for the deposition process. The biomimetic coating adds the attribute of osteoconductivity to the implant device. To maximize bone growth, the implant must also induce bone growth, or possess the attribute of osteoinductivity. This attribute is acquired by the use of therapeutic agents, i.e. bone morphogenic proteins (BMP), growth factors, stem cells, etc. The preparation of the SCPS solution is slightly altered so that during the immersion of the implant in the SCPS, the therapeutic agents are co-precipitated and bonded with the CaP directly on the underlying surface of the implant device. A final dipping process into a BMP solution provides an initial burst of cellular activity. For delivering stem and/or progenitor cell, after drying the dipped solution of BMP, the cells are cultured on the surface of the implant.

The invention relates to protective coating systems derived from a functional polyester resin, a cross-linker and a phenol-formaldehyde resin. Also provided is a method of coating a metal substrate using the protective coating systems to produce a cross-linked protective coating. Further provided is a composite material prepared with the coating system and, in certain embodiments, useful in fabricating metal foodstuffs storage containers. The composite material may be particularly useful in fabricating foodstuffs storage containers and “easy-open” end closures wherein the cross-linked protective coating contacts the foodstuffs.

A decorative material is provided which possesses excellent surface properties, such as excellent staining resistance, marring resistance, scratch resistance, abrasion resistance, and anti-transferability to a cellophane pressure-sensitive adhesive tape, and can be produced at low cost. This decorative material comprises: a substrate having at least on its surface an active hydrogen-containing polar functional group; and, provided on the substrate, a two-component cured urethane resin layer and a surface resin layer of a crosslinked coating formed from a ionizing radiation curable acrylate resin, the two-component cured urethane resin layer having a structure of at least three layers, the crosslinking density of the intermediate layer being lower than that of each layer provided on both sides of the intermediate layer.

The invention relates to a cationic electro-deposition coating. The cationic electro-deposition coating comprises, by weight, 45-80% of amino modified phenolic epoxy resin a, 15-40% of blocked isocyanate curing agents b and 5-20% of organic silicon/oleic acid modified epoxy resin c with hydrolysable siloxane groups. Hard segment components of the coating are provided by the amino modified phenolic epoxy resin, and soft segment components are provided by the organic silicon/oleic acid modified epoxy resin. The cationic electro-deposition coating has the advantages that the cationic electro-deposition coating is excellent in electro-deposition coating adaptability when applied to metal base materials (die casting aluminum materials, magnesium-aluminum alloy and galvanized steel plates in particular) and is excellent in corrosion resistance, base material adhesion and flexibility and good in weather resistance, and finished products are excellent in appearance.

The invention relates to the technical field of anti-freezing coatings, in particular to a water-based organic-inorganic hybrid anti-freezing coating, which is prepared from the following components in parts by weight: 1 to 50 parts of water-base resin, 1 to 20 parts of water-soluble curing agent, 0 to 30 parts of functional filler, 0.01 to 1.00 part of accessory ingredient, 1 to 20 parts of solvent, and the balance of deionized water for complementing 100 parts by weight. The water-soluble curing agent is a nitrogen-containing derivative and/or polyhydroxy-alcohol and water-soluble amino resin cross-linked with active groups such as hydroxide radical, carboxyl, amino, epoxy group and (sealed) isocyanate in the water-base resin. The water-based organic-inorganic hybrid anti-freezing coating provided by the invention is prepared by blending the water-base resin, the curing agent, the filler, a surface active agent and the solvent, and is particularly suitable for heat exchange surface treatment of an air conditioner coating aluminum foil, a refrigerator/cabinet inner container and the like.

A cavity-down semiconductor package mainly includes a heat spreader, a substrate, and a chip. The substrate has an outer surface, an inner surface opposing to the outer surface and an opening passing through the outer and inner surfaces. The inner surface is attached to the heat spreader to form a chip carrier with a chip cavity. The chip is located in the opening and electrically connected to the substrate. The substrate includes a metal cover layer over the inner surface. The metal cover layer can be bonded to the heat spreader to establish a thermal-coupling relationship to improve adhesion, heat conductibility and electrical performance between the substrate and the heat spreader.

The invention relates to a process for the synthesis of conducting polymer films by vapour phase polymerization. The invention relates particularly to the synthesis of polymerized thiophene films, for example poly(3,4-ethylenedioxythiophene) (PEDOT) films.

A polyesteramide copolymer having a glass transition temperature (Tg) of less than or equal to 0° C., contains at least one hard segment containing at least one amide bond, and at least one soft segment containing at least one ester bond. The soft segment is formed from at least one dimer fatty acid and/or dimer fatty diol and/or equivalent thereof. The copolymer is particularly suitable for use as a hot melt adhesive on low energy surfaces.

The invention relates to a preparation method of a fluorinated polyurethane coating and a super-hydrophobic coating, and the method comprises the following steps: preparing a mercaptan prepolymer witha long fluoroalkane chain, and inoculating the fluoromercaptan prepolymer into a polyurethane prepolymer through a simple polyurethane reaction to obtain the fluorinated polyurethane coating; blending and dispersing nanoparticles and the fluorinated polyurethane coating according to a certain ratio, spraying, brushing or impregnating the mixture on the surface of a base material, and after a solvent is completely volatilized, putting the coating in a 70 DEG C drying oven for heat treatment for 5 hours to obtain the super-hydrophobic coating. The coating has high abrasion resistance, and afterthe coating is completely damaged, the super-hydrophobic performance of the coating can be recovered to a large extent within a short time through heating.

The invention relates to an expansive type double-component fireproof sealant and a preparation method thereof, and belongs to the technical field of fireproof sealing materials .The expansive type double-component fireproof sealant is prepared from 100 parts of polyhydric alcohol, 30-38 parts of liquid phosphate fire retardant, 110-126 parts of powder fire retardant, 80-115 parts of filler, 0.03-0.22 part of organo-metallic catalyst, 0.18-0.24 part of hydrolysis-resistant thermosensitive catalyst, 4-6 parts of water removal agent, 2-8 parts of thixotropic agent, 0.6-1.25 parts of catalytic activator, 2-2.5 parts of coupling agent and 33-74 parts of polyisocyanate .The expansive type double-component fireproof sealant and the preparation method thereof have the advantages that polyurethane resin is adopted as a matrix, the base material adhesive force of the sealant is more excellent than that of a fireproof sealant with organic silicon resin or water-based acrylic resin as a matrix, the sealant has excellent fire resistance and high temperature resistance, expansion can occur after a fire happens, a compact carbon layer is formed, the functions of preventing flames from continuously burning and stopping heat spreading are achieved, and the product expiration date is greatly prolonged .

The invention provides a water-based organic-inorganic hybrid anticorrosive coating and an application method thereof. The water-based organic-inorganic hybrid anticorrosive coating is prepared from components in parts by weight as follows: 1-50 parts of a nano-material modified acrylic ester composite emulsion, 1-20 parts of a curing agent, 0-30 parts of inorganic salt, 0.001-1.00 part of an auxiliary, 1-20 parts of a solvent and the balance of deionized water. Compared with the prior art, the water-based organic-inorganic hybrid anticorrosive coating has the beneficial effects as follows: 1, functional organic resin is designed and synthesized and is matched with inorganic anticorrosive salt very well, and a good self-repairing function of the coating is realized; 2, excellent adhesion force is provided, and the coating has good recoatability; the organic-inorganic hybrid coating has good base material adhesion force, and a requirement for a long-term effect of the coating is met; 3, under the conditions of deformation, damage and heated baking of the surface of a base material after post-processing, good anticorrosive performance can still be provided.

The invention relates to a method for preparing a carbon nano-tube array field emission cathode, including the following steps that: the mask is made by a metal mask plate or the photoresist; a low melting point metal layer is deposited on a substrate, and a catalyst layer is deposited on the low melting point metal layer, forming a lower melting point metal-catalyst composite lattice; and then the lower melting point metal-catalyst composite lattice is burnt in a flame for 1 to 10 minutes, and the stable carbon nano-tube emission array is formed after the annealing and ageing treatment of the electric field. The method for preparing a carbon nano-tube array field emission cathode has the advantages of easy operation, low cost and unnecessary nitride or oxide transition layer; moreover, the invention can grow the carbon nano-tube array under an open atmospheric environment(vacuum equipments are not needed) and finish the preparation of the growth of the carbon nano-tube and the assembly of the cold cathode array at one time; moreover, the prepared carbon nano-tube array has the advantages of large area, even and localized growth and desirable emission characteristics. The carbon nano-tube array prepared by the invention can be used as the emission cathode to be applied to a field emission displayer or a luminous light source, an X-ray electron source, a mass spectrograph electron source and other occasions where the electron source is needed.