370 results about "Unsaturated hydrocarbon" patented technology

The invention provides a biolipid hydroisomerization catalyst and a preparation method thereof, the biolipid hydroisomerization catalyst comprises a carrier and active components, and the active components comprise Pt, Ce and La. According to the present invention, the synergistic effect between the rare earth metals Ce and La and the noble metal Pt is utilized to optimize the performance of the catalyst, the prepared hydroisomerization catalyst has characteristics of high activity and high stability, unsaturated hydrocarbon and impurities in the bio-based deoxidized oil can be effectively removed so as to generate the high-quality fuel, the hydroisomerization activity of the catalyst is improved, and the hydroisomerization efficiency is improved. The cracking selectivity is reduced, and the different direct proportion of aviation kerosene products is increased.

Provided in the present invention is a nitrogen-containing heterocycle-branched cationic lipid. The structure thereof is as represented by general formula (1), wherein the definition of each symbol is consistent with that described herein. The nitrogen-containing heterocycle-branched cationic lipid has a nitrogen-containing heterocycle as a branched core, an amino acid or an amino acid derivative as a linker arm, and a saturated or unsaturated hydrocarbon group as a tail chain; and has the advantages of low toxicity, low immunogenicity and high biocompatibility. In the new cationic lipid of the present invention, the electropositivity of the nitrogen on the nitrogen-containing heterocycle is delocalized to the whole ring, so that the cationic lipid shows higher transfection efficiency and lower cytotoxicity. The new cationic lipid of the present invention contains one or more biodegradable groups between the nitrogen-containing heterocycle and the hydrophobic tail, and the presence of the degradable groups enables a lipid nanoparticle (LNP) prepared from the cationic lipid to be timely degraded in the endosome, such that the problem in the prior art whereby LNPs prepared from a non-degradable lipid accumulate in the endosome and acidify the endosomal environment, thereby hindering the endosomal escape of a drug molecule (such as a nucleic acid) and thus the drug delivered into a cell not being able to function is solved.

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 belongs to the technical field of extraction separation, and relates to a silver-based eutectic solvent which is composed of silver salt serving as a hydrogen bond acceptor and an organic compound serving as a hydrogen bond donor. Wherein the organic compound serving as the hydrogen bond donor is a carbonyl organic compound or an alcohol organic compound. The silver-based deep-eutectic solvent provided by the invention is easy to prepare, the structure is easy to regulate and control, and the silver-based deep-eutectic solvent has the advantages of good thermal stability, reproducibility and the like, and has high unsaturated hydrocarbon absorption capacity and excellent separation performance for unsaturated hydrocarbon mixtures.

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.

To provide a photosensitive composition capable of further improving diffraction characteristics.The present technology provides a photosensitive composition including: at least a compound represented by the following general formula (1); a binder resin; and a photoinitiator.In the general formula (1), X1 represents an oxygen atom, a nitrogen atom, a phosphorus atom, a caron atom, or a silicon atom.Y1 and Y2 each represent a benzene ring or a naphthalene ring, and both Y1 and Y2 do not represent benzene rings.R1 to R3 each represent a hydrogen or a substituent group represented by *—Z1(R4)d (* represents a bonding site).Z1 represents a single bond, a saturated hydrocarbon group having a valence of 2 or higher, or an unsaturated hydrocarbon group having a valence of 2 or higher, and the saturated hydrocarbon group or the unsaturated hydrocarbon group may have an ether bond and / or a thioether bond.R4 represents a hydrogen or a polymerizable substituent 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.

There is provided a technology capable of controlling the occurrence of “migration” of a foam material to a contact object.The present technology provides a package material containing: a fibrous material that includes waste paper and / or pulp; a binder; sodium hydrogen carbonate; a surfactant; and a water-soluble softener, the water-soluble softener being a urea derivative having a chemical structural formula of R1,R2—N—CO—N—R3,R4 (R1 to R4 are each H or a saturated and / or unsaturated hydrocarbon group having 1 to 4 carbon atoms) and / or a water-soluble polyhydric alcohol having 3 to 15 carbon atoms, the number of carbon atoms and the number of hydroxyl (OH) groups in a molecular structure of the water-soluble polyhydric alcohol satisfying a relationship of the number of hydroxy groups<the number of carbon atoms.

The invention relates to glassine ester as well as a preparation method and application thereof. The structural formula of the glassine ester is shown as a formula (I), each R1 is independently selected from hydrogen and-C (= O) R, and at least one R1 is-C (= O) R; r is selected from C7-C21 alkyl groups and C7-C21 unsaturated chain alkyl groups. The glassine ester has a remarkable DPPH free radical scavenging effect, can remarkably improve expression of elastin, hyaluronic acid and I-type collagen in cells, and has excellent effects of oxidation resistance, moisturizing and / or tightening and wrinkle resistance when being added into cosmetics as a functional component. # imgabs0 #

The present invention relates to a decarboxylated carnosine derivative, a preparation method thereof and an application. The structural formula of the decarboxylated carnosine derivative of the present invention is shown in formula (I), wherein R is selected from: C5-C 21 alkyl group, C5-C 21 unsaturated hydrocarbon group. The decarboxylated carnosine derivative of the present invention has a more excellent anti-glycation effect compared with decarboxylated carnosine; meanwhile, it has good antioxidant effect; and, the decarboxylated carnosine derivative of the present invention has certain lipophilicity, is relatively easy to penetrate through the skin cutin layer, has good skin penetration performance, and has good stability at the same time. It can be used for preparing cosmetics with anti-glycation, antioxidant, anti-skin aging and other functions, and has important market value#imgabs0#(I).

The invention belongs to the technical field of semiconductors, and particularly discloses a method for bonding a semiconductor device, a laminated semiconductor device and electronic equipment, and the method comprises the steps: providing a first semiconductor device and a second semiconductor device, the first semiconductor device is provided with a first to-be-bonded surface, and the second semiconductor device is provided with a second to-be-bonded surface; at least one of the first to-be-bonded surface and the second to-be-bonded surface is in contact with a mixture containing ozone and unsaturated hydrocarbon gas, and then the first to-be-bonded surface and the second to-be-bonded surface are in contact bonding. Therefore, the bonding strength and the electrical connection effect of the semiconductor device can be improved.

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 the technical field of caprolactam production, in particular to a fixed bed hydrogenation catalyst and a preparation method thereof.The fixed bed hydrogenation catalyst at least comprises an activated carbon-based carrier and a nickel salt solution, the specific surface area of the activated carbon-based carrier is larger than or equal to 400 m < 2 > / g, the pore volume of the activated carbon-based carrier is larger than or equal to 0.3 mL / g, and the strength of the activated carbon-based carrier is larger than or equal to 90%; activated carbon is selected as a carrier, the carrier is shaped into an amorphous shape, a cylindrical shape, a clover shape and the like, the carrier with high strength and high specific surface area is obtained, and the acid-resistant, alkali-resistant and water-resistant fixed bed hydrogenation catalyst is obtained by carrying out load modification, drying and activation on the carrier. And the application requirement of unsaturated hydrocarbon hydrogenation reaction of the crude caprolactam aqueous solution in a caprolactam device is met.

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.

An object of the present invention is to provide a harmful organism control agent capable of achieving, at a low concentration, the control of agricultural or horticultural harmful organisms in which no difference in the control effect is observed between target harmful organism species, by an active ingredient ensuring human safety. The harmful organism control agent is an agricultural composition containing (a) a fatty acid ester; and (b) an amide compound, in which the (a) fatty acid ester is one or more selected from the group consisting of a (poly)glycerin fatty acid ester, a sucrose fatty acid ester, a (polyoxyethylene) sorbitan fatty acid ester, and a propylene glycol fatty acid ester, and the (b) amide compound is an amide compound represented by formula (1) and / or formula (2): in which in formula (1) or formula (2), R is a linear or branched, saturated or unsaturated hydrocarbon having 6 to 20 carbon atoms; Ra and Rb are each independently a hydrogen atom and / or an alkyl group having 1 to 4 carbon atoms; and x is an integer of 0 to 4.

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 problem addressed by the present invention is to provide a polymer that is easy to decompose and a method for decomposing the polymer. This problem is solved by: a copolymer characterized by comprising an unsaturated hydrocarbon segment (A) and an enol ether segment (B), the content of the enol ether segment (B) being 0.005-40 mass% of the content of the unsaturated hydrocarbon segment (A); and a method for decomposing the copolymer, which is characterized by decomposing the copolymer in the presence of an acid.

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.

To provide a composition containing an organic zinc compound and a saturated aliphatic hydrocarbon-based solvent and having excellent storage stability.SOLUTION: A composition contains: an organozinc compound represented by a formula (1); a saturated aliphatic hydrocarbon organic solvent; and one or more hydrocarbon compounds selected from the group consisting of aromatic hydrocarbon compounds represented by a formula (2) and liquid at 1 atm and 25°C, and unsaturated hydrocarbon compounds represented by a specific formula and liquid at 1 atm and 25°C. Formula (1) R11-Zn-R12 (In formula (1), R11 and R12 represent an alkyl group having 1 to 4 carbon atoms or a hydrogen atom.) (In formula (2), R2 represents an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or a hydrogen atom, and m represents an integer of 1 to 6.)SELECTED DRAWING: None

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 present invention relates to a combination comprising the following (A) and (B): (A) The following formula (I) JPEG2025523872000035.jpg33170[wherein R is selected from a saturated hydrocarbon chain having 5 to 23 carbon atoms, an unsaturated hydrocarbon chain having 5 to 23 carbon atoms, and a mixture thereof] at least one compound selected from compounds of, sorbitan esters, isosorbide esters, and glyceryl ethers; and (B) at least one hydroxamic acid or a salt thereof.