87 results about "Branched alkane" patented technology

The invention discloses a silica gel material and a preparation method thereof, a silica gel tube, an implant and a preparation method and application thereof. The silica gel material comprises the following components in parts by weight: 100 parts of R-vinyl polysiloxane; 10 to 80 parts of a reinforcing agent; 0.000002 to 1 part of a catalyst; wherein R in the R-vinyl polysiloxane is substituted or unsubstituted straight-chain alkane or branched alkane of C1-C5, and substituted or unsubstituted aromatic hydrocarbon of C6-C20, and R in the R-vinyl polysiloxane is substituted or unsubstituted straight-chain alkane or branched alkane of C1-C5, or substituted or unsubstituted aromatic hydrocarbon of C6-C20; the content of vinyl in the R-vinyl polysiloxane ranges from 0.1 mol% to 0.5 mol%; the components contained in the reinforcing agent comprise hydrophilic groups; the content of Si-H groups in the hydrogen-containing silicone oil is 0.18 mol% to 1.6 mol%; the molar ratio of the Si-H group in the hydrogen-containing silicone oil to the vinyl group in the R-vinyl polysiloxane is (0.5-10): 1; optionally, the composition also comprises an inhibitor. According to the silica gel material provided by the invention, the permeability of water to the silica gel tube is increased while the mechanical property is met, so that the release amount of a medicine is increased, and the defect of low in-vitro release degree in the prior art is improved.

The invention provides a pharmaceutical composition, a rod core, an implant and a preparation method and application thereof. The pharmaceutical composition comprises the following components in parts by weight: 1-1000 parts of active pharmaceutical ingredients; 100 parts of R-vinyl silicone rubber; hydrogen-containing silicone oil; 0.000002 to 1 part of a catalyst; r in the R-vinyl silicone rubber is substituted or unsubstituted C1-C5 straight-chain alkane or branched alkane, and substituted or unsubstituted C6-C20 aromatic hydrocarbon; the content of vinyl in the R-vinyl silicone rubber is 0.10 to 0.50 mol%; the content of Si-H groups in the hydrogen-containing silicone oil is 0.15 to 1.6 mol percent; the molar ratio of Si-H group in the hydrogen-containing silicone oil to vinyl in the R-vinyl silicone rubber is (0.5-20): 1. The implant provided by the invention can reduce drug loss and sudden release phenomenon, the drug release is more stable, and the production speed is greatly increased.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The invention discloses a composition and a method for preparing high-carbon aldehyde through water / oil two-phase hydroformylation. The composition comprises a rhodium catalyst, a water-soluble phosphine ligand and a quaternary ammonium salt cationic surfactant, the structural formula of the quaternary ammonium salt cationic surfactant is shown in a formula (I), R1, R2, R3, R4 and R5 are independently selected from methyl, ethyl and C3-C18 straight-chain or branched-chain alkane, and X is F, Cl or Br; the molar ratio of the water-soluble phosphine ligand to the rhodium catalyst is (0.1-20): 1; the molar ratio of the quaternary ammonium salt cationic surfactant to the rhodium catalyst is (0.05-100): 1. # imgabs0 #

The invention discloses a preparation method of fluoroether, an electrolyte, a battery and a power utilization device. The invention relates to the technical field of batteries, in particular to a preparation method of fluoroether, an electrolyte, a battery and a power utilization device. The preparation method of the fluoro-ether comprises the following steps: reacting a metal fluoride solution with a carbonyl compound and an alkyl compound to obtain the fluoro-ether, wherein the fluoroether has a simple structural formula as shown in a formula (I), and R1 is straight-chain or branched-chain alkane; r2 is fluoroalkane, wherein the number of fluorine atoms is 4. The invention provides a novel fluoro-ether synthesis route which can be carried out in a normal pressure environment, the process is simple, the post-treatment is simple, the yield of fluoro-ether is improved, side reactions are reduced, and the product is easy to separate.

The invention discloses a method for preparing a high-performance polyalkylene oxide compound through catalyst modification and application of the high-performance polyalkylene oxide compound. An ammonia-calcium catalyst system is modified, an MgAl oxide mesoporous material which can provide an Al active site and can also serve as a carrier is introduced to serve as a cocatalyst, in cooperation with a conventional carrier, the ring-opening polymerization effect of epoxide, especially branched-chain epoxide is improved, full polymerization of branched-chain alkane is achieved, and the high conversion rate of 96% or above is achieved; meanwhile, the molecular weight can be controlled, and the molecular weight can be further increased. Compared with polyoxyethylene, the polyalkylene oxide prepared by the invention has better flexibility and mechanical properties, and can improve the problem that polyoxyethylene is fragile. And meanwhile, the crystallinity of the product is also reduced, and the proportion of an amorphous region is increased. Compared with traditional PEO, in the aspect of solid electrolyte, the crystallinity and the melting point of the PEO are reduced, the ionic conductivity and the mechanical property of the PEO are improved, and the electrochemical performance is improved.

The personal care composition comprises: (a) a volatile alkane mixture comprising about 10% to about 90% by weight of linear alkanes having 9 to 18 carbon atoms and about 10% to about 90% by weight of branched alkanes having 10 to 14 hydrocarbons, based on the total weight of the alkane mixture; and (b) one or more non-volatile resins selected from the group consisting of silicone resins, hydrocarbon resins, organic resins, fluorinated resins, and combinations thereof.

A personal care composition comprising: (a) a volatile alkane mixture comprising from about 10% to about 90% by weight, relative to the total weight of the alkane mixture, of a linear alkane having from 9 to 18 carbon atoms and from about 10% to about 90% by weight, relative to the total weight of the alkane mixture, of a branched alkane having from 10 to 14 carbon atoms; and (b) one or more non-volatile oils selected from the group consisting of silicone oils, hydrocarbon oils, organic oils, fluorinated oils, and combinations thereof.

The invention discloses an emulsion polymer which contains a structural unit A, a structural unit B, a structural unit C and a structural unit D. The structural unit A has a structural unit shown in a formula (1), the structural unit B has a structural unit shown in a formula (2), the structural unit C has a structural unit shown in a formula (3), and the structural unit D has a structural unit shown in a formula (4). The weight percentage of the structural unit A is 5-15%, the weight percentage of the structural unit B is 2-40%, the weight percentage of the structural unit C is 10-70%, the weight percentage of the structural unit D is 1-80%, and the viscosity average molecular weight of the emulsion polymer is 30 million to 30 million; wherein R is an alkyl group, preferably a straight chain alkyl group or a branched chain alkyl group of C6-C18.

A water-in-oil microemulsion comprising water; an oil, wherein at least 80 wt%, preferably, from 80 to 100 wt%, more preferably, from 80 to 95% of the oil is a silicone oil, ester oil, and / or a linear or branched alkane comprising 8 to 34 carbons; and a liquid non-ionic surfactant having an HLB from 7 to 13, wherein a weight ratio of the non-ionic surfactant to the oil is from 10:1 to 1.5:1, wherein the water-in-oil microemulsion is transparent and mono-phasic, and wherein the pH of the emulsion is between from 4.5 to 7.5.

The invention relates to a 2 '-deoxy-2'-fluoro-4 '-azido-vidarabine N6-acyl substituted compound, which has the following structural general formula I: # imgabs0 #, and in the formula, R is C1-C10 straight-chain or branched-chain alkane. The 2 '-deoxy-2'-fluoro-4 '-azido-vidarabine N6-acyl substituted compound disclosed by the invention has the characteristics of good activity and difficulty in inactivation in vivo, and can be used for preparing anti-tumor active drugs, especially anti-liver cancer drugs.

The invention discloses binary hydrocarbon insulating liquid, a preparation method and application of the binary hydrocarbon insulating liquid in an oil-immersed transformer, and belongs to the technical field of liquid insulating dielectrics. The binary hydrocarbon insulating liquid is composed of the following components in percentage by volume: 10-30% of short-chain low-branched alkane; the balance is long-chain multi-branched alkane, and the total percentage is 100%; in the short-chain low-branched alkane, the number of carbon atoms of a first main chain is 15-20, the number of first branched chains is 1-2, the first branched chains are methyl and / or ethyl, and the first branched chains are distributed at the end part of the first main chain; in the long-chain multi-branched alkane, the number of carbon atoms of a second main chain is 21-28, the number of second branched chains is 2-6, and the second branched chains are methyl and / or ethyl. The binary hydrocarbon insulating liquid provided by the invention has excellent lightning impulse insulating performance.

A hair care composition is disclosed comprising a cationic surfactant, a siloxane compound, a straight-chain or branched alkane having 8 to 22 carbon atoms, and an anti-dandruff agent selected from pyrrolidone ethanolamine, selenium sulfide, azole-based antifungal agents, and mixtures thereof; wherein the composition is substantially free of cyclic polydimethylsiloxane compounds; wherein the cyclic polydimethylsiloxane compound is present in an amount of less than 1.5% based on the total weight of the hair care composition.

Two-component hair care product comprising separately an anhydrous carrier as a first component and an aqueous carrier as a second component, characterized in that the anhydrous carrier a) a branched or unbranched alkane having a chain length of C10 to C30, in an amount of 20 to 90 wt.%, based on the total weight of the first component, b) a branched or unbranched fatty alcohol having a chain length of C8 to C22, in an amount of 5 to 40% by weight, based on the total weight of the first component, (c) an organic acid or an alkalizing agent and d) a pH-sensitive color indicator which shows a color change in the range between pH 3 and 6, in an amount of 0.0001 to 0.05% by weight, based on the total weight of the first component, and the aqueous carrier comprises a cationic surfactant comprising an organic radical with a chain length of C12 to C30, in an amount of 0.5 to 20% by weight, based on the total weight of the second component, wherein the weight ratio of the first component to the second component is 10 to 1 to 1 to 10, further characterized in that the first component and the second component are at a temperature of 20 °C and a pressure of 10 5 Pa are liquid.

The invention discloses a method for producing chemical raw materials through fluidized bed hydrocracking of straight-run fractions. The method comprises the following steps: mixing and preheating straight-run wax oil and hydrogen, and then feeding the mixture and a catalyst sprayed from the lower part of a reactor into a fluidized bed reactor for hydrogenation upgrading reaction. The reaction product is subjected to gas-liquid-solid separation, the solid catalyst is recycled, the separated hydrogen is mixed with the raw material, the liquid product enters a fractionation device, the obtained light naphtha fraction can be used as a high-quality ethylene cracking raw material, and the heavy naphtha fraction can be used for producing aromatic hydrocarbons and high-octane gasoline blending components through catalytic reforming. According to the invention, the BMCI value and the branched paraffin content of the cracking product can be greatly reduced; the technological process is simple, operation is flexible, and technological parameters can be flexibly adjusted according to raw material characteristics and production requirements; the catalyst has strong adaptability to raw materials, and is especially suitable for paraffin-based straight-run wax oil; non-ideal components can be efficiently converted, and the raw material utilization rate is increased.

The invention relates to an aerosol device comprising:a container containing a composition comprising an amount greater than or equal to 30% by weight relative to the total weight of the composition of one or more C6-C14 branched alkanes, one or more fatty substances other than the C6-C14 branched alkanes and one or more propellants,a means for dispensing said composition, including:a body (3) that is open at its two opposite axial ends,an engaging part (10) that is open at its two opposite axial ends, at least partially defining at least one dispensing orifice (12).

The invention relates to silicone-free hair oils containing linear or branched alkanes with 8 to 19 carbon atoms, oil thickeners, and high-spreading emollients containing at least one ether group. They are particularly suitable for use as leave-in hair care compositions.

A long-chain composition has at least one long-chain alkane selected from the group consisting of C9-18 linear or branched alkanes and at least one long-chain carboxylic acid selected from the group consisting of C9-18 linear or branched, saturated or unsaturated aliphatic monocarboxylic acids. The mass ratio of the long-chain alkane to the long-chain carboxylic acid ranges from 1:1 to 40:1. The long-chain composition has a higher fermentation degree or higher substrate utilization rate and the like, when used as a starting material in the production of long-chain dibasic acids via fermentation.

The present invention relates to the synthesis of compounds, and more specifically, to a sterically hindered di-secondary amine compound, a preparation method and a polyurea resin. The raw materials for preparing the compound include dimerized β-dicarbonyl compounds and primary amines. The present invention provides a sterically hindered di-secondary amine compound, by controlling the R' directly connected to the secondary amine to adopt a larger sterically hindered substituent such as a branched alkane or a cyclic alkane, and controlling the number of carbon atoms of R1 on the adjacent carbon atom, while promoting the synthesis of the compound and improving the yield, effectively improving the curing time with polyisocyanates, while bringing good comprehensive properties, such as smooth surface gloss, and adhesion, etc., to meet various application requirements. And the inventors found that by connecting the structure of β-ester groups to the secondary amine groups in the compound, when acting with polyisocyanates, it is more conducive to promoting the extension of the curing time to adjust the construction performance.

The present invention provides a hydrodeoxygenation catalyst, which comprises, based on 100% total catalyst mass, 6.0-20.0 ω% of magnesium aluminum spinel, 55.0-75.0 ω% of aluminum oxide, 0.5-5.0 ω% of an yttrium-modified metal-organic framework Y / MIL-101, 0.5-14.0 ω% of an HZSM-5 molecular sieve, 1.0-12.0 ω% of nickel oxide, 5.0-20.0 ω% of molybdenum oxide, and 0.5-4.5 ω% of phosphorus pentoxide. The catalyst has a simple preparation method, excellent hydrodeoxygenation performance, increased branched alkane content in the product, a low product pour point, a wide range of applications, and high industrialization prospects.

A personal care composition comprising: (a) a volatile alkane mixture comprising from about 10% to about 90% by weight, relative to the total weight of the alkane mixture, of a linear alkane having from 9 to 18 carbon atoms and from about 10% to about 90% by weight, relative to the total weight of the alkane mixture, of a branched alkane having from 10 to 14 carbon atoms; and (b) one or more non-volatile resins selected from the group consisting of silicone resins, hydrocarbon resins, organic resins, fluorinated resins, and combinations thereof.

A kudzuvine flower terpine derivative, a preparation method and application thereof, a structure formula is shown as follows: wherein R1, R2 are H, CH3, CH2F, CHF2, CF3, t-Bu, MOM, EE, THP, a straight chain or branched alkane with carbon atom number being 1-5, an ester group, a silyl ether, a trifluoro or polyfluorinated alkane straight chain terminal alkyne alkane n=1, 2, 3, 4 or 5, m=1, 2, 3, 4, 5 or 6, when one group is a terminal alkyne, the other two groups are alkane or fluorinated alkane. The kudzuvine flower terpine derivative can inhibit the proliferation growth of liver cancer cells, induce liver cancer cell apoptosis and G2 / M cycle arrest, inhibit the migration and invasion of liver cancer cells, achieve the effect of resisting tumors, and provide a new leading drug for clinical treatment of hepatocellular carcinoma.

The invention relates to the technical field of organic functional materials, in particular to a diaza pyrene cyanine compound as well as a preparation method and application thereof. The structural formula of the diaza pyrene cyanine compound is as shown in formula I, wherein R1 is straight-chain or branched-chain alkane with a hydrophilic group and / or a hydrophobic group; and R2 is straight-chain or branched-chain alkane with a hydrophilic group and / or a hydrophobic group. According to the present invention, the dibromo-diaza pyrene compound is adopted as the raw material, the dibromo-diaza pyrene compound is combined with the electropositive atom or the atomic group to construct the diaza pyrene cyanine compound, the diaza pyrene cyanine compound has six reaction sites, the development of the novel pyrenyl derivative is convenient, the high-performance pyrenyl photoelectric material is prepared by regulating the molecular structure, and the application in the optical function material is easily achieved.

The invention relates to the technical field of plastic resource utilization, and discloses a method for preparing branched paraffin from polyolefin plastic. The method comprises the following steps: in an inert atmosphere, polyolefin plastic is subjected to a catalytic cracking reaction under the action of a catalyst, and the catalyst contains a mesoporous carrier and acid radical ions loaded on the mesoporous carrier. The solid superacid catalyst adopted by the method can stably exist in the air, is cheap and easy to synthesize, does not need the participation of co-reactants such as hydrogen and a solvent, has an adjustable structure and a suitable acid site, not only catalyzes the degradation of polyethylene under a low-temperature condition, but also greatly improves the selectivity of branched paraffin in a gasoline product.

An anhydrous antiperspirant aerosol composition comprising a relatively low level of an AP active which is aluminium sesquichlorohydrate activated by a water-soluble calcium salt and an amino acid, and a carrier oil which is free from volatile cyclic silicone oil and which comprises a C12-C16 branched chain alkane having a refractive index within 0.13 of that of the AP active.

The present application relates to the technical fields of bio-jet fuel, and discloses a preparation method of bio-jet fuel based on soapstock hydrogenation, wherein a Ni-Mo-P molecular sieve hydrogenation catalyst is filled into a hydrogenation refining reactor, pretreated soapstock is fed into the hydrogenation refining reactor through a preheater, hydrogen is fed into the hydrogenation refining reactor, hydrogenation deoxidization reaction is carried out, high-condensation HVO / deoxidized oil is obtained, the high-condensation HVO / deoxidized oil is fed into an isomerization condensation reduction reactor, hydrogen is fed into the isomerization condensation reduction reactor, isomerization condensation reduction reaction is carried out, and bio-jet fuel based on soapstock hydrogenation is obtained. The Ni-Mo-P active catalytic sites are uniformly formed in the molecular sieve matrix, the active catalytic sites have high dispersity and are not easy to be agglomerated, the pretreated soapstock fatty acid has higher selective hydrogenation deoxidization catalytic effect, the prepared bio-jet fuel has the advantages of high branched alkane content and low aromatic content, and has excellent combustion performance.

The invention belongs to the technical field of fine fluorine chemical industry, and discloses a perfluoroalkane dielectric cooling liquid composition with customizable performance and a selective continuous preparation method thereof. The composition is composed of saturated derivatives of hexafluoropropylene oligomer and can comprise a perfluoro-branched hexane isomer mixture, a perfluoro-branched nonane isomer mixture and a perfluoro-branched alkane higher oligomer mixture with the polymerization degree not lower than 7, and key performance such as the boiling range, the viscosity and the freezing point can be customized by regulating and controlling the proportion of all the components. According to the preparation method, an integrated continuous flow system is adopted, and on-demand production of cooling liquid with different component proportions is realized through the steps of controllable initial oligomerization, selectable controllable chain growth and continuous saturation. The product provided by the invention has excellent comprehensive thermophysical properties, is suitable for immersed cooling of high-heat-flux electronic equipment such as an AI data center and a super computer, and has the advantages of high process platformization degree and good economical efficiency.

The invention relates to a preparation method of a beta-configuration molecular sieve and MOR-configuration molecular sieve composite microporous material with a double-microporous structure and application of the composite microporous material in light alkane isomerization. The preparation method of the composite molecular sieve comprises the following steps: providing a first molecular sieve containing a first template agent, and then preparing a second molecular sieve in the presence of a second template agent and the first molecular sieve containing the first template agent to obtain the composite molecular sieve, wherein the first template agent and the second template agent are different in chemical structure, and the first molecular sieve is a beta-configuration molecular sieve and the second molecular sieve is an MOR-configuration molecular sieve. The composite molecular sieve provided by the invention can effectively improve the selectivity of high-octane-number component multi-branched-chain alkane, thereby improving the product quality.

A process for oxidizing an alkyl substrate may comprise combining an alkyl substrate (e.g., propane, n-butane) and ozone in a liquid phase medium comprising a branched alkane activator (e.g., isobutane) and a protic additive (e.g., water) under conditions sufficient to oxidize the alkyl substrate to products. The alkyl substrate may be selected from linear and cyclic alkanes.

The present invention relates to an anhydrous liquid cosmetic composition comprising, in a physiologically acceptable medium: - at least one alkylcellulose, preferably an ethylcellulose, - at least one polyamide lipophilic polycondensate, and - at least one volatile oil, preferably selected from the group consisting of C8-C16 branched alkanes, C9-C14 linear alkanes, and mixtures thereof, and - optionally also at least one dyestuff.