446 results about "Unsaturated hydrocarbon" patented technology

The invention relates to the technical field of CO2 miscible-phase oil displacement, in particular to an ester gas-soluble surfactant for reducing CO2 miscible-phase pressure and a preparation method and application thereof.The ester gas-soluble surfactant is prepared from polyglycerol fatty acid ester and acetic anhydride, the ester gas-soluble surfactant contains unsaturated hydrocarbon chains with the carbon atom number being 8-18, and the unsaturated hydrocarbon chains are connected with the polyglycerol fatty acid ester. N is the polymerization degree of the polyglycerol fatty acid ester, n is any integer in the range of 2-22, and the ester gas-soluble surfactant has the solubility of 0.5 wt%-1.5 wt% in supercritical carbon dioxide. When the ester gas-soluble surfactant provided by the invention is used, other auxiliaries do not need to be added, and a good mixing reduction effect can be achieved aiming at different crude oils by adjusting the number of carbon dioxide-philic groups and the length of oleophylic unsaturated hydrocarbon chains.

The invention belongs to the field of fine chemical engineering, and particularly relates to an N-heterocyclic carbene complex catalyst and application of the N-heterocyclic carbene complex catalyst in pipelined continuous synthesis of a silane coupling agent. The invention provides an N-heterocyclic carbene complex catalyst, which comprises a ligand and an active component, the ligand is an N-heterocyclic carbene ligand, and the active component is a transition metal; the molar ratio of the N-heterocyclic carbene ligand to the transition metal is 1: 1. The invention also provides a method for pipelined continuous synthesis of the silane coupling agent, which comprises the following steps: carrying out homogeneous hydrosilylation reaction in a pipelined reactor by taking hydrogen-containing silane and unsaturated hydrocarbon as raw materials in the presence of an N-heterocyclic carbene complex catalyst to obtain the silane coupling agent. The spatial configuration and the electronic property of the N-heterocyclic carbene ligand precursor are designed and regulated, so that the N-heterocyclic carbene ligand precursor is matched with transition metal, and the N-heterocyclic carbene ligand precursor can be applied to hydrosilylation reaction.

The glass transition temperature of the cured product of a resin composition containing a benzoxazine having a terminal unsaturated hydrocarbon group is improved. A resin composition according to an embodiment contains compounds of formula (1) and formula (2). JPEG0007659692000032.jpg74167

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.

The invention provides a C3 and C4 total hydrogenation catalyst as well as a preparation method and application thereof. According to the C3 and C4 total hydrogenation catalyst, unsaturated hydrocarbon in C3 and C4 fractions generated by a lightweight raw material cracking device can be completely hydrogenated to be saturated. The catalyst comprises a main active component, an auxiliary active component and a carrier. According to the invention, the distribution of metal active components is controlled and the conversion rate of unsaturated hydrocarbon is improved by regulating and controlling the type, number and density of oxygen-containing groups of the carrier.

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 synthesis method of an unsaturated ketone or arone compound, which comprises the following steps: at a certain temperature, taking unsaturated hydrocarbon or aromatic hydrocarbon as a raw material, taking an N-hydroxyimide compound as a catalyst, adding an organic solvent for dissolving, introducing oxygen or air into a reaction solution under the irradiation of visible light, and carrying out oxidation reaction to obtain the unsaturated ketone or arone compound. And carrying out post-treatment separation to obtain the unsaturated ketone or arone. According to the method, air, oxygen-enriched gas or oxygen is used as a harmless oxidizing agent, visible light is used as an energy source to promote the reaction, and the method has the advantages that the reaction process is green and efficient, the cost is low, the dosage of the catalyst is small, and most of the catalyst can be recycled and reused; the atom economy is high.

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.

To provide a novel fluororesin which is useful as an electronic substrate material for high-speed transmission. A fluororesin having a structure represented by formula (I) (n is within the range of from 1 to 100; L is a C5-C12 cycloalkylidene group which may have substituents; R3 and R4 are each independently a group selected from the group consisting of hydrogen, fluorine, C1-C10 saturated or unsaturated hydrocarbon groups in which some or all hydrogen is optionally substituted with halogens, and C6-C10 aryl groups in which some or all hydrogen is optionally substituted with halogens; and X is a group having an olefinic carbon-carbon double bond or a carbon-carbon triple bond).Formula (I);

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.

To provide a technology that can contribute to preventing dust and the like from adhering to the surface of a substrate, preventing moisture from remaining on the surface of the substrate, and facilitating the desired hydrophilization of the surface of the substrate. The apparatus includes a chamber 1 capable of accommodating a substrate 10, a plasma generating unit 2 capable of drawing in a reactive gas into a plasma generating vessel 21 arranged on the outer periphery of the chamber and generating plasma of the reactive gas, an unsaturated hydrocarbon gas supply unit 3 capable of supplying an unsaturated hydrocarbon gas into the chamber 1, an ozone gas supply unit 4 capable of supplying ozone gas into the chamber 1, and a gas exhaust unit 5 capable of drawing in gas within the chamber 1 and discharging it to the outer periphery of the chamber 1. The plasma generating vessel 21 supplies active species generated by the plasma of the reactive gas into the chamber 1 (downstream side).

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 #

To provide: a resin composition having extremely high mechanical characteristic; and a method for manufacturing the resin composition.SOLUTION: One embodiment provides: a resin composition including a cellulose nanofiber, a thermoplastic resin, and a polyphenylene ether whose glass transition temperature by differential scanning calorimetry (DSC) is -100°C to 50°C, as well as a molded product, a molding material for 3D printing, and a formed object. In one embodiment, the polyphenylene ether has a saturated or unsaturated hydrocarbon group which may be substituted and has a carbon number of 7-25.SELECTED DRAWING: None

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 discloses a methyl methacrylate copolymer as well as a preparation method and application thereof. The methyl methacrylate copolymer is mainly obtained by polymerizing 20-90 parts by mass of a methyl methacrylate monomer a), 10-80 parts by mass of an aromatic unsaturated hydrocarbon monomer b) and 0-20 parts by mass of other vinyl monomers c). A phosphite antioxidant is added before resin devolatilization, and a hindered phenol antioxidant is added in a resin extrusion granulation stage, so that the resin has relatively good optical performance and aging resistance.

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.

The present invention provides a novel amino acid-based cationic lipid containing unsaturated bonds, represented by the general formula (1), with symbols defined as described herein. The amino acids or derivatives used as starting materials in the preparation process are simple and easily obtainable, offering simplicity, safety, and cost-effectiveness. The amino acid-based cationic lipid of this invention features unsaturated hydrocarbon tails and a tertiary amine moiety derived from an amino acid residue. The lipid nanoparticles (LNPs) prepared from this lipid exhibit enhanced membrane fluidity, which improves membrane fusion and facilitates cellular uptake. As a result, the delivery efficiency of the amino acid-based cationic lipid containing unsaturated bonds as a delivery material is significantly improved.

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.