1089 results about "Aliphatic amine" patented technology

Nanoparticle compositions of noble metals, and methods of making them, are described. The nanoparticle compositions are made by reacting a salt or complex of a noble metal, such as Au, Ag, Cu or Pt, with a weak ligand, and a reducing agent, in a single liquid phase. The noble metal is typically provided as a halide or carboxylate. The ligand is preferably a fatty acid or aliphatic amine. The reducing agent is preferably a borohydride reagent, hydrazine, or a mixture thereof. Nanocrystals in the size range of 1 nm to 20 nm are produced, and can be made in substantially monodisperse form.

The invention is directed to a method of polishing a silicon-containing dielectric layer involving the use of a chemical-mechanical polishing system comprising (a) an inorganic abrasive, (b) a polishing additive, and (c) a liquid carrier, wherein the polishing composition has a pH of about 4 to about 6. The polishing additive comprises a functional group having a pK_a of about 4 to about 9 and is selected from the group consisting of arylamines, aminoalcohols, aliphatic amines, heterocyclic amines, hydroxamic acids, aminocarboxylic acids, cyclic monocarboxylic acids, unsaturated monocarboxylic acids, substituted phenols, sulfonamides, thiols, salts thereof, and combinations thereof. The invention is further directed to the chemical-mechanical polishing system, wherein the inorganic abrasive is ceria.

Improved methods are disclosed for catalyst-assisted atomic layer deposition (ALD) to form a silicon dioxide layer having superior properties on a semiconductor substrate by using a first reactant component consisting of a silicon compound having at least two silicon atoms, or using a tertiary aliphatic amine as the catalyst component, or both in combination, together with related purging methods and sequencing.

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 relates to a high impact-resistant epoxy resin filling adhesive and a preparation method thereof. The high impact-resistant epoxy resin filling adhesive consists of a component A and a curing agent in a weight ratio of 100:6.5-100:7.5, wherein the component A consists of the following raw materials in percentage by weight: 20 to 60 percent of epoxy resin, 5 to 15 percent of toughening agent, 0.1 to 0.5 percent of thixotropic agent, 2 to 10 percent of diluent, 30 to 70 percent of filler and 0.1 to 0.5 percent of aid; and the curing agent is one or a mixture of more of straight chain aliphatic amine, aliphatic cyclic amine, polyether amine and low molecular weight polyamide. The preparation method for the high impact-resistant epoxy resin filling adhesive comprises the following steps of: mixing the component A and the curing agent in a proper weight ratio, and curing at the temperature of between 10 and 35DEG C for 16 hours.

Compositions and methods are provided for reducing the permeability of subterranean zones. More particularly, water-soluble polymeric compositions which form cross-linked gels in the zones. In general, the composition comprises (a) at least one water-soluble polymer; (b) at least one organic gelling agent capable of cross-linking the water-soluble polymer; and (c) at least one water-soluble formate. More preferably, the water-soluble polymer is a copolymer of (i) at least one non-acidic ethylenically unsaturated polar monomer, and (ii) at least one copolymerisable ethylenically unsaturated ester. The gelling agent is preferably selected from the group consisting of a polyalkyleneimine, polyfunctional aliphatic amine, an aralkylamine, and a heteroaralkylamine. The preferred water-soluble formate is selected from the group consisting of ammonium formate, lithium formate, sodium formate, potassium formate, rubidium formate, cesium formate, and francium formate. Water is used to make an aqueous composition prior to use in a subterranean formation. The methods of this invention for reducing the permeability of a subterranean zone are comprised of the steps of introducing an aqueous composition according to the invention into a subterranean zone, and then allowing the aqueous composition to form a cross-linked gel in the zone. Preferably, the method includes the step of subsequently producing hydrocarbons from the subterranean formation.

A piston for an internal combustion engine of an automotive vehicle. The piston has a piston ring and a piston skirt section each of which has a sliding section in slidable contact with a cylinder bore section of a cylinder block in presence of a lubricating oil. The cylinder bore section is formed of eutectic or hyper-eutectic aluminum alloy. Additionally, a hard carbon thin film is coated on the sliding section of the piston and contains hydrogen atom in an amount of not more than 1 atomic %. Here, the lubricating oil contains at least one selected from the group consisting of ashless fatty acid ester friction modifier, ashless aliphatic amine friction modifier, polybutenyl succinimide, derivative of polybutenyl succinimide, zinc dithiophosphate, and derivative of zinc dithiophosphate.

Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines containing one or more target functional groups including polar groups, such as hydroxyl groups, ˜OH, amino groups, ˜NH₂, ˜NHR, ˜NRR′, and ethylene oxide groups, ˜OCH₂CH₂—, negatively or positively charged ionic groups, such as ˜SO₃⁻, ˜COO⁻, and ˜NH₄⁺ groups, hydrophobic groups such as siloxane or perfluorcarbone groups, and non-polar groups, such as linear or branched hydrocarbon groups. The functionalized porous poly(aryl ether ketone) article can be prepared by reacting primary amine with a pre-formed, shaped porous poly(aryl ether ketone) article or by functionalizing the surface of a non-porous precursor article that is subsequently converted into a porous article.

A low-friction sliding member in a transmission is at least one of sliding members which are in slidable contact with each other in presence of a transmission oil composition. The low-friction sliding member includes a base material having a sliding section. A hard carbon thin film is coated at a sliding surface of the sliding section of the base material. The hard carbon thin film contains hydrogen in an amount not more than 20 atomic %. The transmission oil composition contains at least one of organic oxygen-containing compound and aliphatic amine compound.

The invention provides a high-performance thermosetting epoxy resin adhesive for roads and bridges. The adhesive comprises a component A and a component B, wherein, the component A comprises the following components in parts by mass: 100 parts of epoxy resin, 25 to 33 parts of flexibilizer, and 5 to 10 parts of diluent; the component B comprises the following components in parts by mass: 80 to 120 parts of curing agent, 5 to 10 parts of accelerant, 0.5 to 2 parts of coupling agent, 1 to 10 parts of reinforcing agent, and 0.2 to 0.5 part of antifoaming agent; and the ratio of the component A to the component B is 100:100-100:120. According to the adhesive, a flexible long-chain aliphatic amine serving as the curing agent has a curing reaction with the epoxy resin to form a solid crosslinking structure, so that the epoxy resin adhesive is high in adhesion capability and water resistance; The toughness of the epoxy asphalt adhesive is improved by adopting the soybean oil-based polyurethane to be adapted to the flexibility of a steel plate, and the soybean oil-based polyurethane containing massive hydroxyl has good compatibility with the epoxy resin. The adhesive is applicable to adhesion and waterproofing of steel bridge decks, viaducts, cement concrete bridge decks, tunnels, expressways and other decks. The invention discloses a preparation method of the high-performance thermosetting epoxy resin adhesive.

The invention discloses a fast curing epoxy resin system for blades of a wind driven generator and a preparation method thereof. The fast curing epoxy resin system comprises a resin part and a curing agent part. The fast curing epoxy resin system is characterized in that the curing agent part includes a high-activity aliphatic amine curing agent, a high-activity aliphatic cyclic amine curing agent and a curing accelerating agent, and the proportion of the high-activity aliphatic amine curing agent to the high-activity aliphatic cyclic amine curing agent to the curing accelerating agent is (40-80): (10-50): (5-25) (in parts by weight). The fast curing epoxy resin system is formed by mixing the resin part with the curing agent part according to the proportion of 100: (20-40) in parts by weight. The invention greatly shortens the gel time under the condition of meeting the requirements for performance needed by the blades of the wind driven generator by adopting a method using the high-performance and high-activity amine curing agents and the curing accelerating agent in a mixing way; and the gel time of 100g of the fast curing epoxy resin system at a temperature of 23 DEG C is 10-60 minutes, thereby meeting the requirements for the application of the fast curing epoxy resin system for the blades of the wind driven generator of above a megawatt grade.

The invention relates to two-component epoxy glue and a preparation method thereof. The two-component epoxy glue comprises a component A and a component B, and the component A comprises epoxy resin, a toughening agent, a liquid flame retardant, a powder flame retardant, a diluent, an antifoaming agent and reinforcing fillers; the component B comprises an aliphatic amine curing agent, polyether amine, polyamide 650 and a curing accelerator. According to the two-component epoxy glue and the preparation method thereof, screening is conducted on the components of the epoxy glue, performance complementation of the components is achieved, a two-component epoxy glue with excellent comprehensive performance is formed through synergetic cooperation, the toughness, the anti-stripping strength and the anti-impact performance of the epoxy glue are significantly improved, the flame-retardant performance can reach the grade UL94-V0, the operable time is more appropriate, the curing time is short, and the continuous production can be achieved.

The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound. The low-friction sliding mechanism has an oxygen-containing organic compound or an aliphatic amine compound interposed between sliding surfaces that a DLC coated sliding member and a sliding member form. The low-friction agent composition contains an oxygen-containing organic compound or an aliphatic amine compound. The friction reduction method includes supplying the low-friction agent composition between sliding surfaces that a DLC coated sliding member and a sliding member form. The manual transmission includes, as at least one of sliding members, a DLC coated sliding section. The final reduction gear unit includes, as at least one of sliding members, a DLC coated sliding section.

The invention discloses a wind-power class bi-component epoxy adhesive and a preparation method thereof. The epoxy adhesive is made from a main component A mainly consisting of epoxide resin and a filler and a curing agent component B and characterized in that the component A, according to percentage by weight, contains 50 percent to 68 percent of acrylic acid modified epoxide resin, 1 percent to 10 percent of high-property heat filler, 2 percent to 10 percent of epoxide diluter, 10 percent to 25 percent of thixotropic agent and 0.5 percent to 12.5 percent of additive, and the component B is divided into aliphatic amine, polyetheramine, alicyclic amine mixed-type general curing agent; and the mixing proportion of the component A and the component B is 100:30-100:50 according to portions by weight. The invention can improve exothermic peak temperature property during the curing reaction of epoxide resin adhesive and the toughness of the epoxy adhesive, thus being applicable to the cementation of large-scale composite material structural pieces, particularly meeting the requirements for low exothermic peak temperature in wind-power leaf pectization technology.

The invention relates to lubricating grease special for a constant-speed universal joint and a preparing method thereof. The lubricating grease comprises base oil and thickener which is compounded by lithium-calcium composite and uramido composite, and the lubricating grease also contains: (a) borate extreme pressure anti-wear agent, (b) aliphatic amine derivative multi-effect friction modifying agent, (c) phosphoric extreme pressure anti-wear agent, (d) diphenylamine antioxidant and (e) viscosity index improver; wherein the base oil is mineral oil that accounts for 70 to 95 percent of the total weight of the lubricating grease, synthetic oil or the mixture of the mineral oil and the synthetic oil in optional proportion. The thickener which is compounded by the lithium-calcium composite and the uramido composite accounts for 1 to 25 percent of the total weight of the lubricating grease; and the lubricating grease has excellent extreme pressure anti-wear property, thermal stability, oxidation stability, water resisting property, mechanical stability, shear stability, anticorrosion property, and the like, and the lubricating grease can meet the lubricating demands of the constant-speed universal joint of automobiles and has low cost and high efficiency.

The invention discloses epoxy anti-corrosive paint used for underwater concrete. Liquid epoxy resin DER351 is used as a base material; polysulfide rubber is used as a flexibilizer; pentanediol diglycidyl ether 6286 is used as a diluent; zinc phosphate and iron oxide red are used as active anti-corrosive pigment; spherical silicon carbide, ceramic microspheres, mica iron oxide, sericite and precipitate vitriolic barium are used as fillings; cashew shell oil, modified phenolic aldehyde amine and modified aliphatic amine are used as curing agents; and a silane coupling agent 1121 is used as an adhesion promoter. With the cooperation of functional promoters, the raw materials are made into solvent-free double-component epoxy anti-corrosive paint used for underwater concrete through conventional preparation technique equipment. The epoxy anti-corrosive paint used for underwater concrete is highly environmental-friendly and can be directly painted or smeared on damp interfaces of underwater concrete and rapidly solidified into films; the coating has great adhesion and strong abrasion resistance and corrosion prevention. The epoxy anti-corrosive paint used for underwater concrete is widely applied to the corrosion prevention of various underwater concrete facilities.

The invention relates to a technology for synthesizing a bisquaternary ammonium salt slow-breaking quick-setting asphalt emulsifier. The technology comprises the steps of: (1) adding mixed fatty acid, long-chain aliphatic amine, an aromatic hydrocarbon solvent and a catalyst in a reaction vessel for backflow reaction, then removing the solvent through reduced pressure distillation, cooling and adding an alcohol solvent to obtain an amide or multi-acyl amide intermediate; (2) mixing aliphatic tertiary amine with hydrochloric acid, then dripping epoxy chloropropane, mixing for a reaction and cooling to a room temperature to obtain a quaternary ammonium salt intermediate; and (3) dripping the quaternary ammonium salt intermediate into the amide or multi-acyl amide intermediate for reaction so as to obtain the bisquaternary ammonium salt type cationic asphalt emulsifier. The technology for synthesizing the bisquaternary ammonium salt slow-breaking quick-setting asphalt emulsifier, disclosed by the invention, has the advantages of wide raw material source, high cost performance, wide application range and convenience in popularization and application. The asphalt emulsion has uniform and fine particles and good storage stability; and wide slow-breaking quick-setting use performances can be obtained.

The invention relates to a method for massively preparing overlength copper nanowires. The method comprises the following steps of: using metal copper salt as a copper source; using alkyl aliphatic amine as a directing agent and a reducing agent; using polyethylene glycol and polyvinylpyrrolidone as an auxiliary agent; using mixed liquid of polyalcohol, water and dimethylformamide as a solvent; uniformly mixing several reactants and the solvent; transferring the mixture to a flask; and heating the mixture until the mixture is boiling and flowing back, and obtaining copper nanowires after a certain time. The copper nanowires have the advantages of uniform feature, high purity and good monodispersity; the cost is relatively lower, and the reversal device is simpler; the feature is controllable, and the size regulation range is wide, so that the large-scale production of the copper nanowires is realized, and the method has the industrialization prospect.

The invention relates to a carbon dioxide drive oil reservoir production method capable of realizing stage control on fluidity. The method is characterized in that for an oil reservoir formed by homogeneous cores and heterogeneous cores with the permeability ratio not exceeding 30, a water and gas alternate injection method is adopted for production; for an oil reservoir formed by heterogeneous cores with the permeability ratio in a range of 30 to 100, a carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when gas channeling occurs in a production well, small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging; for an oil reservoir formed by heterogeneous cores with the permeability ratio being higher than 100, the carbon dioxide drive method is adopted for production; in the carbon dioxide drive process, when the gas channeling occurs in the production well for the first time, elastic strong glue is injected into the formation for sealing and plugging; and when the gas channeling occurs in the production well again, the small aliphatic amine molecules are used as main agents to be injected into the formation for sealing and plugging.

The present invention provides a refrigerating machine oil composition for use in a compressor for a refrigerator in which a sliding surface of at least a part of constitutional members of the compressor is coated with a lubrication film-forming composition containing a resin having a heat distortion temperature of 100° C. or higher as a binder, and a solid lubricant, wherein the refrigerating machine oil composition contains a base oil made of a polyoxyalkylene glycol having a kinematic viscosity of from 3 to 50 mm²/s as measured at 100° C., and a compound selected from the group consisting of amide compounds, amidated amino acid compounds and aliphatic amines having a specific structural formula which compound is contained in an amount of from 0.01 to 1% by mass on the basis of a total amount of the refrigerating machine oil composition, the refrigerating machine oil composition being capable of ensuring a good lubrication of sliding portions of the compressor upon starting operation of the compressor and during the operation; a compressor using the refrigerating machine oil composition; and a refrigerating apparatus including the compressor.

Surface-coated metal nanoparticles comprising:

• • metal nanoparticles having an average particle diameter of 1 to 100 nm, and an organic coating film provided on a surface of each of the metal nanoparticles, wherein
  • the organic coating film comprises a fatty acid having 8 or more carbon atoms and an aliphatic amine having 8 or more carbon atoms, and
  • a molar ratio of the aliphatic amine to the fatty acid is aliphatic amine/fatty acid from 0.001/1 to 0.2/1.