285 results about "Unsaturated hydrocarbon" patented technology

To provide a salt-forming compound, which is a salt of a xanthene-based compound, exhibiting higher coloring strength and higher color development stability after heat and light history compared with traditional ones, and also to provide a resin composition and a color filter.SOLUTION: There is provided a xanthene-based compound which is a salt composed of an anion forming a xanthene-based chromophore having an anionic functional group represented by general formula (1), and a cation composed of an aromatic nitrogen-containing heterocyclic compound having a linear or branched, saturated or unsaturated hydrocarbon group (optionally containing an ether bond and / or an ester bond within the hydrocarbon group).SELECTED DRAWING: None

The invention discloses a peracetylated polysaccharide derivative mixing accelerator as well as a preparation method and application thereof, and relates to the technical field of polysaccharide derivatives. Alkyl polyglucoside and glycidyl ether are subjected to etherification reaction to obtain polysaccharide derivatives; and adding acetic anhydride and an organic weak base catalyst into the polysaccharide derivative, and carrying out esterification reaction to obtain the peracetylated polysaccharide derivative. The obtained peracetylated polysaccharide derivative can be used for reducing the minimum miscible pressure of CO2 in an offshore oilfield. The polysaccharide derivative provided by the invention is simple in synthesis process, and the molecular activity of the polysaccharide derivative can be regulated and controlled by changing the number of carbon dioxide-philic groups and the length of oleophylic unsaturated hydrocarbon chains, so that the polysaccharide derivative can be used in the CO2 oil displacement process of oilfield exploitation, and the minimum miscible pressure in the CO2 oil displacement process is effectively reduced.

A pigment dispersion liquid containing a copolymer (A) having a first segment (a1) derived from a nitrogen-containing polymerizable unsaturated monomer having a tertiary amino group and / or a nitrogen-containing heterocyclic group, and a second segment (a2) derived from a polymerizable unsaturated monomer having a polyoxyalkylene chain, a hydrocarbon group-containing acidic compound (B), a pigment (C), and an aqueous solvent (D), and a hydrocarbon group-containing acidic compound (B) having a C5-23 saturated or unsaturated hydrocarbon group (b1) and at least one acid group (b2) selected from the group consisting of a carboxyl group, a phosphate group, a sulfonic acid group, and a phenol group.

Provided is a dual-target nucleic acid molecule for inhibiting the expression of the vegfa gene and ang-2 gene. A linker contains 2-10 nucleotides or abasic nucleotides, and is used for linking two independent oligonucleotides. One or more nucleotides or abasic nucleotides in the linker contain a lipophilic moiety, and the lipophilic moiety is a C12-26 saturated or unsaturated hydrocarbon chain. Compared to a situation where a specific lipophilic modification is located inside the two linked moieties of a dual-nucleic acid molecule structure, the nucleic acid molecule exhibits better efficacy and a longer-lasting therapeutic effect when the specific lipophilic modification is located on the linker.

The invention relates to the field of benzoxazine, in particular to modified benzoxazine resin and a preparation method and application thereof.The preparation method of the modified benzoxazine resin comprises the following steps that S1, first-stage reaction is conducted, specifically, an alkane amine compound, formaldehyde and an organic solvent are stirred to be uniform and heated to react; the alkane amine type compound is one or more of short aliphatic chain amine, alicyclic polyamine and a monoamine type compound; s2, second-stage reaction: adding a phenolic compound containing unsaturated alkyl, and heating for reaction; s3, heating, and removing small molecular impurities and by-products under negative pressure to obtain the modified benzoxazine resin, the modified benzoxazine resin and the preparation method and application thereof solve the problem that the existing benzoxazine resin is insufficient in storage stability and processing performance while improving the dielectric property.

The invention provides a perovskite precursor solution, a perovskite absorption layer and a cell thereof. The perovskite precursor solution comprises a Pb-based perovskite material, a stabilizer and a solvent, the chemical formula of the stabilizer is marked as R-(COOEt) n, R represents hydroxyl-substituted alkyl, aryl or unsaturated alkyl, Et represents ethyl, and n is greater than or equal to 1. By adding the stabilizer into a perovskite precursor solution, the stability of cations in the perovskite precursor solution can be improved, and meanwhile, a weak acid environment is provided, so that deprotonation of the cations is more difficult to occur, the stability of the perovskite precursor solution is improved, and the stability of the perovskite precursor solution is improved. The method is very important for preparing a repeatable, efficient and stable perovskite solar cell.

Lipid composition comprising: (i) one or more cationic lipids, preferably cationically ionizable lipids, (ii) one or more phospholipids, and (iii) one or more statistical copolymers comprising repeating units of the following formula (I-a) and repeating units of formula (II-a) wherein R1 represents a hydrogen atom or a group selected from a C1-3 alkyl group, a cyclopropyl group, and a C3 alkenyl group; R2 represents a group selected from a saturated C4-40 hydrocarbyl group; an unsaturated C4-40 hydrocarbyl group having one or more carbon-carbon double and / or triple bonds; a saturated C4-40 heterohydrocarbyl group containing 1 to 5 divalent groups selected from ether, thioether, sulfone, sulfoxide, keto, ester, amide, carbamate and carbonate groups, and / or 1 to 5 fluorine atoms as substituents; and an unsaturated C4-40 heterohydrocarbyl group having one or more carbon-carbon double and / or triple bonds, and containing 1 to 5 divalent groups selected from ether, keto, ester, and carbonate groups and / or 1 to 5 fluorine atoms as substituents; and x and y independently represent 0 or 1.

The invention relates to a process for the production of maleic anhydride (MA) by a catalytic partial gas phase oxidation reaction of saturated and / or unsaturated C4 hydrocarbons, characterized in that the gas coolers 5 (tube bundle coolers) downstream of the isothermally controlled reactor unit 1 are at least partially equipped with a catalyst 7 and are thus at least partially used as post-reactor(s) for the oxidative degradation of the undesired by-products formed in the main reactor 2, in particular acrylic acid, and the cooling capacity of the gas coolers is minimized by a maximum of 20% by the installation of the catalyst.

An electrode plate, a preparation method thereof, a battery, and an electric apparatus, where the electrode plate includes a current collector and an electrode film layer disposed on a surface of the current collector. A composition of the electrode film layer includes a silicon compound, and the silicon compound has a group represented by formula (A); where each R1 is independently selected from any one of hydrogen, a substituted or unsubstituted alkyl group, an alkoxy group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, and an unsaturated hydrocarbon group. Not all R1 groups are hydrogen; and “*” represents a site where the group represented by formula (A) is connected to another structure in the silicon compound.

One embodiment of the nonlinear light-absorbing material disclosed herein comprises a compound represented by the following formula (1) as its main component. In formula (1), R 1 ~R 10 Each group can be a hydrogen atom, halogen atom, saturated hydrocarbon group, haloalkyl group, unsaturated hydrocarbon group, hydroxyl group, carboxyl group, alkoxycarbonyl group, aldehyde group, acyl group, amide group, nitrile group, alkoxy group, acyloxy group, thiol group, alkylthio group, sulfonic acid group, acylthio group, alkylsulfonyl group, sulfonamide group, primary amino group, secondary amino group, tertiary amino group, or nitro group.

The invention relates to a method for recycling an exhaust gas (50) from chemical vapor deposition or permeation of pyrolytic carbon, the exhaust gas comprising hydrogen, C1 to C4 light unsaturated hydrocarbons, and C5 + heavy hydrocarbons, the method comprising the steps of: a) removing (60) the heavy hydrocarbons (501) from the exhaust gas, b) catalytically hydrogenating (80) the light unsaturated hydrocarbons, c) removing (60) the heavy hydrocarbons (501) from the exhaust gas, and d) removing (60) the heavy hydrocarbons (502) from the exhaust gas. The present invention relates to a process for the production of light saturated hydrocarbons, comprising the steps of: a) adding an exhaust gas (402) obtained after carrying out step a) to a reaction chamber (30) in order to remove them by converting them into C1 to C4 light saturated hydrocarbons, the catalytic hydrogenation step being carried out for the exhaust gas obtained after carrying out step a) and consuming a portion of the hydrogen present in said exhaust gas, and c) adding the exhaust gas (402) obtained after carrying out step b) to the reaction chamber (30), pyrolytic carbon is formed by chemical vapor deposition or permeation using C1 to C4 light saturated hydrocarbons present in the thus added exhaust gas.

The invention provides a catalyst performance testing device with real-time monitoring and data analysis functions, the catalyst performance testing device comprises a filter, a pressure stabilizing valve, a dryer and a testing assembly, one side of the filter is fixedly connected with the pressure stabilizing valve, one side of the pressure stabilizing valve is fixedly provided with the dryer, one side of the dryer is fixedly provided with the testing assembly, and the testing assembly is fixedly connected with the pressure stabilizing valve. The filter is arranged to prevent impurities from entering a reaction zone of a catalyst to influence the accuracy of catalytic reaction, the pressure stabilizing valve adjusts the pressure of gas or liquid flow to ensure that the pressure in the system is always kept in a set range, so that the reaction environment is kept stable, and the dryer is arranged to effectively remove unwanted moisture in the system; according to the device, various impurities mainly including thiophene in crude benzene are completely removed by hydrogenation through a hydrogenation method, all sulfides are converted into H2S, nitrides are converted into NH3, oxides are converted into H2O, unsaturated hydrocarbons are subjected to hydrogenation saturation, and then the impurities are removed by extractive distillation, so that high-quality benzene is produced.

Disclosed are an electrolyte additive, an electrolyte and a battery. The electrolyte additive comprises a first additive and a second additive. The first additive comprises a compound containing a silicon element and an unsaturated hydrocarbon group. The second additive comprises a compound represented by formula 1, where X1, X2, X3 and X4 are each independently selected from N or CH, R is selected from a 5-6 membered aryl, a 5-6 membered aryl substituted with R0, a 5-6 membered heteroaryl, a 5-6 membered heteroaryl substituted with R0, a C1-8 alkyl, a C1-8 alkyl substituted with R0, a C2-8 alkenyl, a C2-8 alkenyl substituted with R0, a C0-8 alkylsilane, or a C0-8 alkylsilane substituted with R0, and R0 is selected from a C1-6 alkyl, a C1-6 alkoxy or halogen.

The dispersant for an inorganic powder according to the present invention is characterized by comprising a polycarboxylic acid-based copolymer containing, as constituent units, (a) a polyoxyalkylene compound represented by formula 1 [R1O (C2H4O) nR2] and (b) a maleic acid-based compound, the composition ratio ((a): (b)) of the component (a) to the component (b) being 30: 70-70: 30 in mol%, and the copolymer having a weight-average molecular weight of 4,000-20,000 and an acid value of 200-350 mgKOH / g. In the formula 1, R1 represents an alkyl group having 1-4 carbon atoms, R2 represents an unsaturated alkyl group having 2-5 carbon atoms, and n is the average addition mole number of the oxyalkylene group and represents 1-10. According to the present invention, it is possible to provide a dispersant which can exhibit a good dispersion effect and reduce the viscosity of a slurry composition even with a small addition amount when the ratio of an inorganic powder fluctuates.

The present invention relates to the use of a compound X selected from the group consisting of compounds of formula (I), glyceryl ethers, sorbitan esters and isosorbide esters, as an antimicrobial agent against a microorganism causing dental caries, a microorganism causing dental plaque or a microorganism causing gingivitis, wherein R is selected from saturated hydrocarbon chains having 5 to 23 carbon atoms, unsaturated hydrocarbon chains having 5 to 23 carbon atoms, and mixtures thereof.

The present disclosure provides: a silicone composition including: (a1) a first organopolysiloxane including at least two unsaturated hydrocarbons; (a2) a second organopolysiloxane including at least one unit represented by SiO4 / 2; (b) an organohydrogen siloxane including at least two SiH functional groups per molecule and at least one C6 to C20 aryl group per molecule; and (c) a catalyst for a hydrosilylation reaction, and a method of bonding display panels using the silicone composition.

The application discloses a methyl methacrylate copolymer and a preparation method and application thereof. The methyl methacrylate copolymer is mainly obtained by polymerization of 20-90 mass parts of methyl methacrylate monomer a), 10-80 mass parts of aromatic unsaturated hydrocarbon monomer b) and 0-20 mass parts of other vinyl monomer c). By adding phosphite antioxidant before resin devolatilization and adding hindered phenolic antioxidant in the resin extrusion granulation stage, the resin has good optical performance and aging resistance.

[Problem] To provide a sulfur-containing unsaturated hydrocarbon polymer with which it is possible, by blending into a rubber composition for a tire, to improve a tire's wear resistance, fracture resistance (breaking strength, elongation at break, cut chip resistance), wet grip property, fuel economy, balance between wet grip property and fuel economy, and deterioration resistance (rubber bonding property and heat aging resistance). [Solution] This sulfur-containing unsaturated hydrocarbon polymer is obtained by reacting sulfur with the unsaturated bonds of a polymer of an unsaturated hydrocarbon having a norbornene skeleton, wherein the ratio added in the form of a trisulfide (-S3-) relative to the total amount of unsaturated bonds in the norbornene skeleton is 30 mol% or above.

To provide a phenolic compound with excellent handling properties, which allows addition into a resin without requiring heating treatment of the phenolic compound itself.SOLUTION: There is provided a phenolic compound represented by formula (I), wherein R1 and R2 each independently represent H, a C1-8 alkyl group, or a C5-8 cycloalkyl group; X represents a C1-3 linear or branched alkylene group; Y represents *-C(=O)-O-**, *-O-C(=O)-** or the like; and Z represents, for example, a branched saturated or unsaturated hydrocarbon group having 9-24 carbon atoms.SELECTED DRAWING: None

This application discloses an electrolyte solute, its preparation method, and its application. The electrolyte solute comprises an olefinic cyclohexene carboxylic acid compound obtained by the reaction of conjugated diene carboxylic acids. The conjugated diene carboxylic acid includes at least one compound having the structure shown in Formula III: wherein X and Y are each independently selected from H, -RO-COOH, substituted or unsubstituted C1-10 saturated hydrocarbon groups, etc., and at least one of X and Y is -RO-COOH; RO represents a directly bonded or C1-10 saturated hydrocarbon group. The electrolyte solute of this application, comprising an olefinic cyclohexene carboxylic acid compound with unsaturated hydrocarbon functional groups, can both improve the flash voltage of the electrolyte and maintain low viscosity and high conductivity.

The invention belongs to the field of hydrogen production technology and emission reduction, and discloses an unsaturated hydrocarbon water vapor conversion hydrogen production system and method. The system comprises an unsaturated hydrocarbon feeding pipeline, a purification device, a first heating device, a hydrogenation reaction device, a water vapor feeding pipeline, a mixer, a second heating device, a conversion device, a first cooling device, a conversion device, a second cooling device, a hydrogen purification device and a product hydrogen pipeline. According to the invention, sulfur in the system is reduced, a renewable purifying agent capable of removing various impurities at the same time is adopted, and the hydrogen consumption of raw material pretreatment is reduced.

The invention relates to the technical field of n-hexane preparation, in particular to a preparation method and application of electronic-grade n-hexane for semiconductor cleaning, and the method comprises the following steps: raw material pretreatment: taking industrial-grade n-hexane, adding a sodium hydroxide solution for neutralization, standing for layering, taking an oil phase, washing with deionized water, adding a drying agent for drying, and taking out the oil phase; and standing and filtering to obtain the pretreated n-hexane. According to the method, a core process system of raw material pretreatment, normal pressure rectification, composite adsorption and ultra-clean filtration is constructed, and improved schemes such as reduced pressure rectification, oxidation-adsorption combined treatment and the like can be further combined, so that various impurities such as moisture, aromatic hydrocarbon, metal ions, unsaturated hydrocarbon and the like in the n-hexane are synergistically and deeply removed.

It is proposed that the fragrance preparation contains (a) a compound of the formula (I) which represents a straight-chain or branched, saturated or unsaturated hydrocarbon radical containing 1 to 4 carbon atoms, R2represents hydrogen or hydroxyl, and R3represents hydrogen, methyl or methoxyl, or an essential oil containing one or more compounds of the formula (I), and (b) at least one menthol compound.

The present invention relates to a cosmetic composition in the form of an oil-in-water dispersion comprising, in a physiologically acceptable medium: one or more vegetable oils consisting essentially of unsaturated fatty acids and / or unsaturated hydrocarbons, a cellulose polymer, a cellulose powder, and a hydrophilic gelling system comprising a polysaccharide gum and a carboxyvinyl polymer.

This invention discloses aryl heterocyclic compounds containing substituted unsaturated hydrocarbons, their preparation methods, and uses. The compounds have the chemical structure shown in Formula I. The compounds of this invention are used as insecticides, showing particularly good control efficacy against armyworms, diamondback moths, cotton bollworms, corn borers, and rice leaf rollers, and are expected to become novel insecticides.

The present invention provides a vasodilator capable of dilating a blood vessel even in the presence of ROS. A vasodilator of the present invention includes:a compound represented by the following formula (1) or a salt thereof:where in the formula (1),an A ring and a B ring may be the same or different and are each a pyrazole ring having a substituent or a pyrazoline ring having a substituent, andL is a saturated or unsaturated hydrocarbon group.

A method for reducing the risk of burning and explosion in a deoxygenation process of an oxygen-containing gas includes multiple steps. According to this method, in the presence of a gaseous alkane, hydrogen reacts with an oxygen-containing gas from which an unsaturated hydrocarbon has been removed. The oxygen-containing gas contains the oxygen and the unsaturated hydrocarbon, and the content of the oxygen in the oxygen-containing gas is greater than 0.5% by volume. A gaseous alkane is introduced to reduce the risk of burning and explosion of a mixed gas. A hydrocatalytic reaction is carried out to promote oxygen in the mixed gas to react with hydrogen to produce water, which removes oxygen from the oxygen-containing gas and also effectively inhibits carbon deposition on the surface of a catalyst and the production of a carbon oxide, which enhances the toleration for fluctuation of the oxygen content in a raw gas.

Novel compounds with protein kinase inhibitory activity are disclosed. The compounds comprise a lipophilic targeting moiety having affinity to a cell membrane, such as a saturated or unsaturated hydrocarbon chain. The invention is further directed to pharmaceutical compositions comprising such compounds, and to the use of the compounds or compositions as medicines, in particular in the treatment of cancer.

The invention relates to the technical field of preparation of unsaturated hydrocarbon through electrolysis, in particular to a universal unsaturated functional group electroreduction method which comprises the following steps: mixing an unsaturated hydrocarbon compound, water or deuterium water, electrolyte and a solvent to obtain a solution; and carrying out electrolysis by using a metal-modified electrode as a cathode material to generate a reduction hydrogenation reaction or a reduction deuteration reaction, so as to obtain an unsaturated hydrocarbon reduced compound. Water / deuterium water is used as a main deuterium source, the hydrogen / deuterium atom utilization rate is high, the reaction substrate compatibility is good, the applicable functional group type is wide, chemical oxidizing agents and strong chemical reducing agents do not need to be added in the reaction, the reaction condition is mild, the reaction process is simple and easy to operate, and the method is very suitable for preparing corresponding reducing compounds in laboratories and factories. The deuterated compound prepared by the invention is high in deuteration rate, high in purity, simple and convenient to prepare and separate, and low in cost.

The application discloses a hydrogenation catalyst vulcanizing agent and a preparation method and application thereof. The hydrogenation catalyst vulcanizing agent is an organic polysulfide, the organic polysulfide is calcined at 100 DEG C-280 DEG C under a hydrogen atmosphere, and the weight loss of the hydrogenation catalyst vulcanizing agent is as follows: 25-40% at 100 DEG C-180 DEG C, 20-35% at greater than 180 DEG C to less than 215 DEG C, and 20-30% at 215 DEG C-270 DEG C, with the total weight of the hydrogenation catalyst vulcanizing agent as the basis. The preparation method of the hydrogenation catalyst vulcanizing agent mainly comprises the following steps: reacting elemental sulfur and unsaturated hydrocarbons in the presence of alkaline substances and C8 or above aliphatic hydrocarbons, and obtaining the hydrogenation catalyst vulcanizing agent through separation after the reaction is completed. The hydrogenation catalyst vulcanizing agent not only has a simple preparation method and is easy to control, but also can slowly decompose and release hydrogen sulfide in a hydrogen atmosphere.