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

The present invention is directed to an adhesive composition, which comprises an epoxy resin, a coupling agent, filler, and an effective amount of an amine-curing agent or curative for said epoxy resin. Advantageously, tri-functional and / or tetrafunctional epoxy resins and / or acrylate monomers will be incorporated into the adhesive composition in order to reduce open time and enhance substrate adhesion. Advantageously, a mixture of amines will be used in the curative including aliphatic amines, which have low viscosities and efficiently wet the substrate for enhancing adhesion; polyamines, which can be used to manipulate open time and allow for improved ratio tolerance of the adhesive system; and amine-terminated rubbers (ATBN), which can improve impact resistance and the toughness of the cured adhesive. Preferred coupling agents are silanes.

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.

An epoxy adhesive composition of an epoxy resin, an epoxy terminated liquid rubber, filler, and an amine curing package for said epoxy resin is disclosed. Advantageously, a short chain diol will be incorporated into the adhesive in order to enhance reactivity and strength build. Advantageously, a mixture of amines will be used in the curative including multifunctional aliphatic amines that improve adhesion and strength build; tertiary amines which are used to enhance adhesion and strength build, polyamides which can be used to provide flexibility; and amine-terminated rubbers (ATBN) which can improve toughness and impact resistance to the cured system. The preferred short chain diol is glycerin. Surfaces of adherends are joined with the dried residue of the epoxy adhesive composition by applying the epoxy resin composition to one or both surfaces, joining the surfaces, and applying pressure, optionally with heating.

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.

To provide a method for manufacturing a high-performance field electron emission apparatus, wherein occurrence of damage to a CNT during a manufacturing step is prevented, and thereby, the CNT can adequately keep an inherent electron emission characteristic of exhibiting a large current density with a low threshold value. This method for manufacturing a field electron emission apparatus is related to the manufacture of a field electron emission apparatus using the CNT as an electron source. In the method, a protective film formation step is performed in order to form an aluminum film 4 as the protective film on the surface of the CNT film 2 during a manufacturing process of at least a part of the apparatus. The CNT surface structure is protected with this conductive protective film (aluminum film 4, 40), while the structure significantly affects the electron emission characteristic. Consequently, the electron emission characteristic inherent in the CNT can be adequately ensured and be exhibited.

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.

A fluoropolyether-containing polymer-modified silane has general formula (1)wherein Rf is a monovalent fluorooxyalkyl or divalent fluorooxyalkylene-containing polymer residue, Y is a divalent to hexavalent hydrocarbon group which may have a silicon atom and / or a siloxane bond, W is a divalent to hexavalent hydrocarbon group which may have a silicon atom and / or a siloxane bond, R is independently an alkyl of 1 to 4 carbon atoms or phenyl, X is independently hydroxyl or a hydrolyzable group, the letters n, a and m are respectively integers from 1 to 3, 1 to 5 and 1 to 5, and α is 1 or 2. A surface treating agent containing this silane and / or a partial (hydrolytic) condensate thereof, when applied to an article, forms a coat of excellent water / oil repellency and abrasion resistance.

The invention provides an aqueous inorganic zinc rich paint, which is prepared by mixing a component A with a component B according to a weight ratio of 4:1, wherein the component A comprises 30-32% of 500-mesh spherical / flaky zinc powder, 30-32% of 800-mesh spherical / flaky zinc powder, 30-32% of 1250-mesh spherical / flaky zinc powder, 6-8% of nanometer cerium dioxide and 2-4% of 800-mesh talcum powder; and the component B comprises 38-50% of potassium silicate, 10-20% of lithium silicate, 8-10% of potassium titanate whiskers, 5-12% of aqueous self-drying organic silicon modified acrylic resin, 0.2-0.5% of defoaming agent, 0.5-1% of wetting agent and 12-20% of water. The aqueous inorganic zinc rich paint provided by the invention has the characteristics of excellent corrosion resistance, physical and mechanical properties, wet resistance, high temperature resistance and strong construction adaptability.

There is provided a novel polyester compound having in its main polymer chain an aliphatic cyclic structure with carboxylic acids or carboxylic acid ester groups as represented by the chemical formula (1), a resist material containing the polyester compound and a patterning method using the resist material.

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.

The invention relates to an all-water foaming cold-cure foam fireproof sealant and a preparation method thereof and belongs to the technical field of fireproof sealing materials. The all-water foaming cold-cure foam fireproof sealant is prepared from 100 parts of polylol, 38-50 parts of a liquid-state phosphate fire retardant, 110-120 parts of a powdered fire retardant, 2-5 parts of pigments, 1.8-4 parts of de-ionized water, 0.5-1.8 parts of a tertiary amine catalyst, 1.8-2.4 parts of an anti-hydrolysis temperature-sensitive catalyst, 1.8-2.5 parts of a chain extender, 0.4-0.6 part of high-activity silicone oil, 2.76-11 parts of a catalytic activation agent, 0.8-1.8 parts of a coupling agent and 64-169 parts of polyisocyanate. The all-water foaming cold-cure foam fireproof sealant has the beneficial effects that the substrate attaching force is more excellent, the light weight can be guaranteed, and the requirements on environment protection can also be met; a quaternary ammonium salt temperature-sensitive catalyst is used as an anti-hydrolysis gel catalyst and meets the field utilization requirements without heating conditions; and a formed foaming layer not only has excellent fire resistance, but also can be expanded to form a firm and dense carbon layer after a fire disaster occurs, so as to prevent flame from spreading and prevent heat propagation.

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.

A polymer comprising recurring units of formula (1) and recurring units of formulae (2a) to (2d) wherein R1 is F or fluoroalkyl, R2 is a single bond or an alkylene or fluoroalkylene, R3 and R4 are H, F, alkyl or fluoroalkyl, at least one of R3 and R4 contains F, R5 is H or an acid labile group, R6 is an acid labile group, adhesive group, alkyl or fluoroalkyl, and “a” is 1 or 2 is used as a base resin to formulate a resist composition which has advantages including high transparency to radiation having a wavelength of up to 200 nm, substrate adhesion, developer affinity and dry etching resistance.

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 present invention discloses a conductive paste comprising a conductive metal or a derivative thereof, and a lead-free glass frit dispersed in an organic vehicle, wherein said lead-free glass frit comprises tellurium-bismuth oxide. The conductive paste of the present invention can be used in the preparation of an electrode of a solar cell with excellent energy conversion efficiency.

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 .

Urethane adhesive compositions comprising amide based polyols. The amide polyols comprise the reaction product of a reactant selected from the group consisting of lactic acid, lactic acid esters, lactone, glycolic acid, glycolic acid esters, and combinations thereof with one or more amines. The urethane adhesive compositions may be applied in methods of manufacturing a tile installation.

A novel organosiloxane polymer is obtained by addition reaction of an organohydrogenpolysiloxane, an alkenyl-containing organopolysiloxane and an unsaturated compound of formula (3) or (4). Using the organosiloxane polymer, a photo-curable resin composition is prepared which can be exposed to radiation having a wide range of wavelength and developed to form a pattern.

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 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 provides a curable resin composition for a photo spacer to obtain a column spacer with good adhesiveness to a glass substrate or good elastic restoring force. The curable resin composition for the photo spacer of the invention is used for preparation of a column spacer of a liquid crystal box, and is characterized by comprising a photosensitive polymer, a polyfunctional monomer, and a photopolymerization initiator, wherein the photosensitive polymer is obtained by reaction of a compound having free-radical-polymerization unsaturated double bonds and a functional group that can react with an acid group with an acid group of an acid-group-containing polymer, which is obtained by synthesis of monomer components having the essential components of a monomer capable of introducing an acid group and a monomer having more than two aromatic nucleuses.

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.

A resist composition comprising a base polymer having sulfone or sulfonate units introduced therein is sensitive to high-energy radiation below 300 nm, is endowed with excellent adherence to substrates while maintaining transparency, and is suited for lithographic microprocessing.