244 results about "Heterocyclic amine" patented technology

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.

The invention relates to a food processing method, in particular to a non-fried production method for grilled chicken. Different heating modes are adopted in the non-fried new process, then fragrant color increasing liquid is applied to the surface of a poultry carcass by selecting a proper method, Maillard reaction is further performed under certain condition, the poultry carcass generates the color similar to that of the traditional grilled chicken, meanwhile, multiple natural flavor substances can be produced, and the fragrance of the product is increased. By adopting the technology, the method realizes modernized technical reformation of the traditional special grilled chicken product processing technique, furthest reduces carcinogenic benzopyrene and heterocyclic amine in the traditional special fried grilled chicken products, avoids illegal colorants, and develops a novel grilled chicken product with good taste, good flavor, good color and high safety.

Polymeric ionic gels of ionic liquids having melting points below about 100° C. that are formed by the reaction of a heterocyclic amine with about 2.8 and about 3.2 moles of anhydrous hydrogen fluoride per mole of amine nitrogen. Electrochemical devices having non-aqueous electrolytes containing the ionic liquids and polymeric ionic gels are also disclosed.

Ionic liquids having melting points below about 100 C formed by reaction of a heterocyclic amine with about 2.8 and about 3.2 moles of anhydrous hydrogen fluoride per mole of amine nitrogen. Electrochemical devices having non-aqueous electrolytes containing the ionic liquids are also disclosed, as well as silicon oxide etching compositions containing the ionic liquids and etching methods in which silicon oxides are selectively removed by the etching compositions in the presence of aluminum.

A lubricant composition is disclosed that comprises lubricating oil and a mixture of at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol.

The use of an aromatic compound substituted with at least one heterocyclic amine and possibly additional substituents, such as medetomidine and clonidine, or a functionally analogous derivative thereof, as an agent for the inhibition of marine biofouling on a surface, by application thereon of said compound, is disclosed. Also a method for inhibition of marine biofouling on a surface by application of said compound is disclosed.

Disclosed is a slurry composition for final polishing of silicon wafers to achieve mirror surfaces of the wafers. The slurry composition can include deionized water, abrasive particles, a pH-adjusting agent, a water-soluble thickener, an acetylene surfactant, and a heterocyclic amine. The particle diameter of the abrasive particles and the contents of the components can be selected so that the slurry composition can markedly reduce the number of LLS defects having a size larger than about 50 nm formed on the surface of wafers, and greatly reduce the haze and microroughness of wafer surfaces.

Ionic gel polymer electrolytes for rechargeable polymer batteries preferably are formed by dissolving a gelling agent into organic liquid electrolytes, and then gelling the precursor in situ at elevated temperature after pouring it into a battery case that contains a cathode, an anode and a separator. The gel polymer electrolytes exhibit excellent ionic conductivity of up to about 10⁻² S/cm and voltage stability for lithium rechargeable batteries. Most preferably, the gel polymer electrolyte is the reaction product of (A) a heterocyclic amine-group containing material (preferably a vinvlpyridine), and (B) halide or epoxy-group containing polymers, copolymers, oligomers or monomers that are capable of reacting with nitrogen-containing compounds, such as polymers, copolymers, oligomers or monomers containing alkylene halides or halomethyl group substituted aromatic units or at least one epoxy unit.

The invention relates to a fireproof flame-retardant polyurethane external wall thermal-insulation system material, which is characterized by comprising a moistureproof primer paint, a flame-retardant rigid polyurethane foam material, an interface agent, anti-crack mortar, a fireproof coating and a decorating coating which are arranged sequentially from inside to outside, wherein the flame-retardant rigid polyurethane foam material consists of an component A and a component B; the component A is prepared by mixing 80 to 50 parts by weight of phosphorous flame-retardant polyether polyol, 20 to 50 parts by weight of heterocyclic amine polyether polyol, 2 parts by weight of organic silicon foam stabilizer, 2 parts by weight of dimethylethanolamine catalyst, 1 part by weight of dibutyltin dilaurate catalyst, 20 to 50 parts by weight of flame retardant and 20 to 40 parts by weight of fluoro dichloroethane; the component B is a flame-retardant polyisocyanates curing agent; in the using process, the component A and the component B are mixed and foamed and an isocyanate index is between 1.05 and 1.10. The fireproof flame-retardant polyurethane external wall thermal-insulation system material of the invention has the advantage of having higher fireproof flame-retardant property.

The invention discloses a high-efficiency composite desulphurization solvent and a system and method for removing acidic gas and organic sulfur. The high-efficiency composite desulphurization solvent comprises, by mass, 70-85% of compound amine, 10-20% of a desulfurization enhancer, 10-30% of a physical solvent, 0.01-0.1% of an antifoaming agent, 0.5-2% of a benzylamine anti-oxidant and 0.5-2% of a heterocyclic amine antiseptic. The high-efficiency composite desulphurization solvent has the advantages of large acidic gas load, low sulfur content of purified gas, stable solvent performances and no corrosion on equipment, and can remove most of H2S and a large part of organic mercaptan from mixed gas. The high-efficiency composite desulphurization solvent and the system and method can greatly reduce a gas purification cost and reduce total sulfur content of the purified gas. The high-efficiency composite desulphurization solvent and the system and method can be used for removing H2S, CO2 and organic mercaptan in natural gas, petroleum refinery gas and synthetic gas.

The invention provides 4,5-disubstituted-1,8-naphthoyl imines fluorescent compound with same or different 4,5-position aromatic amine( heterocyclic aromatic amine) substituent as acceptor and naphthoyl imine as chromophore matrix. In organic solvent, 4,5-position is replaced separately by aromatic amine or heterocyclic aromatic amine to produce symmetrical or asymmetric compound with 4-bromo-5-nitro-1,8-anhydride naphthalene as raw materials. The fluorescent compound is used as rate fluorescent probe which can detect the copper ion in buffer solution and has high sensitivity and high selectivity.

The invention relates to the field of biological medicine, and concretely relates to bicyclic heterocyclic amine compounds, and the compounds are a new Hedgehog inhibitor and pharmaceutically acceptable salts shown as a general formula (I). The compounds can be used as a Hedgehog signal conduction inhibitor applied to multiple medical applications.

A process for forming neutral late transition metal chelates useful as polymerization catalysts comprising contacting a bidentate ligand forming compound that is free of electron-withdrawing groups with a di(tertiary amine) late transition metal reagent in the presence of an inert liquid, an olefinic monomer or a polar liquid selected from nitrites, ethers, aromatic heterocyclic amines, alcohols, nitroalkanes, nitroaromatics or mixtures thereof. The process provides a solid product or a solution of a storage stable transition metal bidentate ligand containing catalyst product which remains active for an extended storage period. Alternately, the present process can be conducted in situ in a polymerization zone of olefinic polymerization.

The invention discloses a method for continuously preparing azo pigment in branch spiral tube, and belongs to the technical field of fine chemical industry. The preparation method comprises the following steps: (1) diazotization of aromatic amines or heterocyclic amines; (2) coupling reaction; (3) performing color lake which is selective, wherein at least the step (2) is performed in a branch spiral tube. According to the method, high-efficiency mixing of secondary flow of fluids generated in the spiral tube and the property that the branch structure changes the motion trajectory of fluids and increases the mixed surface area of the fluids to enhance the mixing effect allow full contact, mixing and reaction of two parts of materials, and therefore the method disclosed by the invention has the advantages of no need of mixing, narrow product size distribution, high quality stability and the like, not only is the continuous production of the pigment achieved, but also the prepared azo pigment has higher tinting strength and smaller size when used for preparing water base colorants, and wide industrial prospect is achieved.

The invention relates to a method for analyzing heterocyclic amine compounds in mainstream cigarette smoke. The method is characterized in that the analytic method utilizes a cambridge filter to trap the heterocyclic amine compounds in the mainstream cigarette smoke; the heterocyclic amine compounds are extracted by a HCL/ methanol solution, are purified through an MCX ion exchange column, condensed and detected by liquid chromatography-tandem mass spectrometry (HPLC-MS/MS); and the contents of the main heterocyclic amine compounds in the mainstream cigarette smoke are mensurated. Compared with the prior method for analyzing the heterocyclic amine compounds in the mainstream cigarette smoke, the analytic mensuration method does not need a complicated sample treatment step, does not need to derive a sample, has high sensitivity, good repeatability and reclaiming rate, and is suitable for analyzing the samples with large batches.

The invention relates to a preparation method of roast beef, belonging to the field of processing of animal products. The preparation method comprises the following steps: firstly, preparing a roast liquid; then, salting beef; injecting saline and kneading; then, preparing roast beef; and finally packaging. According to the preparation method, components such as sugar and amino acids permeate into the beef by injecting saline to the beef and kneading the beef, so that the flavor of the product is improved. Meanwhile, compared with conventional products, the contents of harmful substances heterocyclic amine and 3, 4-benzopyrene are extremely reduced, and the environmental pollution is reduced.

The invention discloses a non-smoked, non-fried, non-carbonado and non-salt-boiled meat product processing method, which comprises the following steps of: curing salted fresh meat for 15 to 45 minutes through hot air under the temperature of 90 to 100 DEG C, spraying a flavor intensifier on the surface of the cured meat product, and then increasing the temperature to 120 to 130 DEG C to be maintained for 20 to 40 minutes, wherein the fresh meat is poultry meat, livestock meat or fish meat. By utilizing the flavor intensifier based on a Maillard reaction oriented control technology, the meat product has unique color and flavor. According to the method, harmful substances such as benzo[alpha]pyrene and heterocyclic amine in the meat product can be obviously reduced.

The invention relates to a preparation method for roast pork, and belongs to the field of animal product processing. The preparation method comprises the following steps: a roasting liquid and ingredients for pickling are prepared firstly; pork is pickled; the roast pork is prepared; the roast pork is packaged finally. According to the invention, compared with the conventional products, the preparation method greatly reduce the content of harmful substances such as benzopyrene and heterocyclic amine, the emission of roasting fumes and PM 2.5, and pollution to environment.

The invention discloses a magnetic heterocyclic amine molecularly imprinted polymer and a preparation method thereof. The magnetic heterocyclic amine molecularly imprinted polymer which takes heterocyclic amine as a template molecule and methacrylic acid (MAA) as a functional monomer is prepared by the method; the characteristics of the molecularly imprinted polymer are fully combined with those of the magnetic material; the magnetic heterocyclic amine molecularly imprinted polymer has the advantages of high selectivity, large adsorption capacity, rapid separation speed, high anti-interference capability and the like, and is suitable for analyzing heterocyclic amine in food and environment.