99 results about "Pentadecane" patented technology

An electrode and a battery coverable of improving cycle characteristics by forming an effective coat are provided. A cathode (21) and an anode (22) are wound with a separator (23) impregnated with an electrolytic solution inbetween. On the surface of the cathode (21) or the anode (22), a coat containing a compound, which has a smaller surface tension than of the electrolytic solution and is insoluble into the electrolytic solution, specifically, a coat containing siloxane such as poly (dimethyl siloxane), poly (methyl hydro siloxane), and poly (methyl phenyl siloxane), or perfluoro polyether such as poly (hexafluoro propylene oxide), or perfluoro alkane such as perfluoro pentadecane is provided. Thereby, without using a great deal of the compound for forming the coat, the coat effective to inhibit decomposition reaction of the electrolytic solution is formed.

The invention discloses a phase change energy storage microcapsule of composite shell and its making method, wherein the core material of the microcapsule employs tetradecane, pentadecane or hexadecane, the shell layer has a composite construction, the inner layer is melamine resin, the outer layer is PEG200 modified melamine resin, or PEG200 modified melamine, or copolycondensation resin of methyl poultry manure amine, acetyl poultry manure amine or benzene substituted melamine.

The invention provides a multifunctional viscose with functions such as temperature regulation and bacterium resistance, a preparation method of the viscose and a fabric. The multifunctional viscose comprises a graphene component and phase-change microcapsule particles; the phase-change microcapsule particles comprise polymer capsule walls and phase-change materials embedded in the polymer capsule walls; the phase-change materials are selected from one or more of n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-eicosane and polyethylene glycol E600. According to the multifunctional viscose, by mainly using the heat storage function of the phase-change materials and the heat conduction function of graphene, the viscose can regulate the temperature and balance the heat. The graphene component has the bacterium resistance and far-infrared transmission capacities. When the multifunctional viscose is used as the garment fabric, the temperature and humidity micro-environment of the human body can keep balance, the human body keeps a good and comfortable wearing environment as long as possible, the multifunctional viscose has the bacterium resistance function, and the health of the human body is protected.

The invention discloses a novel efficient biology-based phosphite ester antioxidant and two preparation methods thereof. The structural formula of the antioxidant is as shown in the specification. Thepreparation methods are characterized in that cardanol is subjected to hydrogenation to obtain 3-pentadecyl-phenol, and the 3-pentadecyl-phenol, phosphorus trichloride and quaternary pentane are allowed to have esterification reaction under certain reaction conditions to obtain the biology-based phosphite ester antioxidant. The novel efficient biology-based phosphite ester antioxidant has the advantages that the antioxidant does not contain nonyl phenol and is large in molecular weight, green, environmentally friendly and safe; due to the fact that the antioxidant contains two trivalent phosphorus, each trivalent phosphorus contains three P-O bonds, and P is positively trivalent, the antioxidant can combine with instable components in polymer to generate oxide, and the antioxidant is goodin effect.

The invention discloses a preparation method of a clay-based composite phase-change energy storage deicing (snow melting) material. The preparation method is characterized in that a composite phase-change energy storage material is prepared from a low-temperature organic phase-change material and a clay material, wherein the low-temperature organic phase-change material is prepared by single-element or multi-element mixing of various organic phase-change materials and is then physically compounded with the treated clay to prepare the clay-based composite phase-change energy storage deicing (snow melting) material. The low-temperature organic phase-change material is selected from polyethylene glycol-300, polyethylene glycol-400, polyethylene glycol-500, polyethylene glycol-600, decyl alcohol, undecanol, dodecanol, heptylic acid, octanoic acid, nonanoic acid, capric acid, methyl laurate, methyl myristate, methyl palmitate, tetradecane, pentadecane, hexadecane, heptadecane, octodecane, nonadecane and the like. The clay material is selected from kaolinite, montmorillonite, bentonite, vermiculite, halloysite, sepiolite, attapulgite, perlite, diatomite, rectorite, zeolite, silicon dioxide, dolomite, calcite and illite. The prepared composite phase-change energy storage deicing (snow melting) material is proper in phase-change temperature (0-5 DEG C), high in phase-change latent heat and high in heat stability.

The invention relates to a novel technique for preparing long-chain alkane efficiently through a multifunctional catalyst in a one-step method. The novel technique can be used for producing the long-chain alkane in one step with high selectively under a relative mild condition, and solve the problems of strict reaction condition, low energy efficiency and low alkane selectivity in a process of preparing the long-chain alkane by biomass derivatives. According to the technique, condensation products (C8, C9, C13 and C15) of a biomass derivative, namely furfural or HMF (Hydroxy Methyl Furfural), and acetone are taken as the raw materials, and by designing the three-center multifunctional catalyst of metal (I)-metal (II)-acid, the original two steps of independent reactions which require strict reaction conditions and need different catalysts to join in are combined into an one-step reaction which requires tender reaction conditions, so that the selectivity on corresponding alkane (octane, nonane, tridecane and pentadecane) is improved greatly, the highest yield can be 97%, and meanwhile, a step of separating the product from the catalyst is omitted, therefore, the energy efficiency of the while process is improved by a great step.

A calosoma maximoviczi morawitz attractant is characterized by mainly prepared through mixing the following materials in percentage by weight: 20%-70% of beta-trans-ocimene, 10%-50% of alpha-farnesene, 1%-10% of linalool, 1%-10% of paraethyl acetophenone, 1%-10% of azulene, 1%-10% of cis-3-hexenyl-acetate, 1%-10% of cis-3-hexenyl-1-alcohol, 1%-10% of n-tetradecane, 1%-10% of n-pentdecne and 1%-10% of n-heneicosane. The calosoma maximoviczi morawitz attractant and a lure core are high in sensitivity, free of environment pollution and low in cost, thereby having higher popularization and application values and displaying higher trapping activity in the field.

The invention discloses a pavement material with a wide phase change temperature zone and a preparation method thereof. The pavement material comprises a shape-stabilized phase change material and asphalt, wherein a mass ratio of the shape-stabilized phase change material to the asphalt is 1:(5-20); the shape-stabilized phase change material is prepared by mixing tetradecane / carrier, pentadecane / carrier, hexadecane / carrier, heptadecane / carrier, octodecane / carrier, nonadecane / carrier, eicosane / carrier and polyethylene glycol / carrier; and a mass ratio is 1:1:(1-3):(1-3):(1-3):(1-3):1:1. The shape-stabilized phase change material of different phase change temperatures is doped into the asphalt, so that the asphalt concrete pavement temperature is regulated, the adaptability on the outside temperature change is enhanced, the temperature rise rate inside large-volume asphalt concrete is effectively reduced, time-to-peak force is delayed, the influence of freezing-thawing cycle and extremely high or low temperature on the concrete pavement performance is reduced, thermal cracks occurring in the asphalt concrete can be prevented, the durability of the material is improved, and the service life is prolonged.

An ethanolic extract of avocado seeds with a composition of 2-Furfuraldehyde (1,00%), 5-Methylundecane (1,05%), (11Z)-Pentadecenal (0,98%), (11Z)-Hexadecenal (2,35%), (3E)-Nonadecene (1,07%), 2-Tetradecylfuran (5,58%), 2-Pentadecylfuran (7,10%), 2-Hexadecylfuran (6,52%), 2-(1Z-Heptadecenyl) furan (2,85%), 2-(1E-Pentadecenyl) furan (2,15%), 2-(1E-Heptadecenyl) furan (5,60%), 2-(8Z, 11Z-Heptadecadienyl) furan (5,49%), 2-(8Z, 11 E-Heptadecadienyl) furan (33,53%), 2-(1 E, 8Z, 11Z-Heptadecatrienyl) furan (15,56%), and other unidentified compounds (9,17%), useful as miticide and insecticide is described.

The invention discloses semi-aromatic polyamide which comprises the following repetitive units based on the molar content of all repetitive units of a chain segment: (a) 53 mol / % to 71 mol / % of a 10Tunit derived from 1,10-decamethylene diamine and terephthalic acid; and (b) 29 mol / % to 47 mol / % of a 10X unit derived from at least one of 1,10-decanediamine and isophthalic acid, 1,4-cyclohexanedicarboxylic acid, adipic acid, octanedioic acid, 1,10-decanedioic acid, 1,12-dodecanedioic acid, and pentadecanedioic acid; in the semi-aromatic polyamide, the molar content of bio-based carbon is 39 mol%-100 mol%; in the semi-aromatic polyamide, the amino content is 30-100 mol / ton, and the carboxyl content is 30-200 mol / ton. The semi-aromatic polyamide with excellent colorability is obtained by controlling the content of bio-based carbon, the content of amino and the content of carboxyl and matching the content of all the repetitive units with monomers.

The invention relates to a composite which is composed of (2Z, 8Z, 10E)-2,8,10-pentadecane triene-4,6-diyne-1-alcohol and (2Z, 8E, 10E)-2,8,10-pentadecane triene-4,6-diyne-1-alcohol according to the proportion of 1:(1-4) or is composed of (2Z, 8Z, 10E)-2,8,10-heptadecane triene-4,6-diyne-1-alcohol and (2Z, 8E, 10E)-2,8,10-heptadecane triene-4,6-diyne-1-alcohol according to the proportion of 1:(1-4). The composite disclosed by the invention is obtained by being extracted and separated from traditional Chinese medicine radix bupleuri. The result of an in-vitro monoamine neurotransmitter reuptake inhibition experiment shows that the composite disclosed by the invention has triple inhibition effects on the reuptake of 5-HT (5-Hydroxytryptamine), NA (noradrenalin) and DA (Dopamine), is higher than the effective part of ease powder petroleum ether and the part of radix bupleuri petroleum ether in inhibition ratio and is higher than positive control drugs, namely fluoxetine, norpramin and 6-hydroxydopamine, in inhibiting effect. According to the invention, two composites can be applied to prepare a drug used for preventing and curing depression.

The invention relates to a composite scale and corrosion inhibitor for ammonium-nitrogen-containing circulating cooling water, which is adopted when ammonium-nitrogen-containing sewage is used for circulating cooling water. The composite scale and corrosion inhibitor adopts 2-pentadecyl-1-(maleic amide)-ethyl-imidazoline and modified starch as main ingredients, wherein the 2-pentadecyl-1-(maleic amide)-ethyl-imidazoline is a corrosion inhibitor which is better in corrosion inhibition while being independently used; the modified starch is a natural and degradable scale inhibitor which has problems of being large in dosage, not good in treatment effect and easy to decompose. According to the composite scale and corrosion inhibitor for ammonium-nitrogen-containing circulating cooling water disclosed by the invention, the 2-pentadecyl-1-(maleic amide)-ethyl-imidazoline and the modified starch are compounded and then added with a little p-amido benzoyl gluten acid, sodium lauroyl sarcosinate, dodeca-tungsten polyoxometallate, 1,3,5-triazine-2,4,6-tricarboxylic acid and glycerol to obtain the composite scale and corrosion inhibitor which is good in corrosion inhibition effect and scale inhibition effect; besides, calcium carbonate scale inhibition rate is over 99.7%, and carbons steel corrosion rate is lower than 0.027 (mm / a).

The invention discloses pentadecyl (pentadecenyl) resorcinol polyoxyethylene ether glucoside. The pentadecyl (pentadecenyl) resorcinol polyoxyethylene ether glucoside at least comprises components shown in the structural formula (1) and in the structural formula (1), -R1 represents a -C15H25, -C15H27, -C15H29 or -C15H31 straight chain alkane structure, -m represents 0-10 and -n represents 1-3. The invention discloses a preparation method and use of pentadecyl (pentadecenyl) resorcinol polyoxyethylene ether glucoside.

The present disclosure provides a dry powder composition of treprostinil prodrugs and a method of treating pulmonary hypertension (e.g., pulmonary arterial hypertension), portopulmonary hypertension, or pulmonary fibrosis in a patient in need thereof. The dry powder composition includes (a) from about 0.1 wt % to about 3 wt % of a compound of Formula (I):or an enantiomer, diastereomer, or a pharmaceutically acceptable salt thereof, (b) from about 0.01 wt % to about 3 wt % of DSPE-PEG2000, (c) from about 10 wt % to about 50 wt % of leucine, and the balance being (d) a sugar selected from the group consisting of trehalose and mannitol. The entirety of (a), (b), (c), and (d) is 100 wt %, and R1 is tetradecyl, pentadecyl, hexadecyl, heptadecyl, or octadecyl. The method includes administering an effective amount of the dry powder composition to the lungs of the patient by inhalation via a dry powder inhaler. In certain compositions and methods provided herein, R1 is hexadecyl, e.g., linear hexadecyl.

The invention belongs to the technical field of weight-loss products, and particularly relates to application of alkyl resorcinol to preparation of a product for preventing or treating obesity relateddiseases. The application of the alkyl resorcinol to preparation of the product for preventing and / or treating the obesity related diseases and improving energy metabolism and heat production of a body is characterized in that the product contains the active ingredient alkyl resorcinol, the alkyl resorcinol is prepared from the following monomers in percentage by weight: 1-10% of heptadecyl resorcinol, 20-25% of nonadecyl resorcinol, 50-55% of heneicosyl resorcinol, 5-10% of tricosyl resorcinol and 5-12% of pentacosyl resorcinol. According to the application, the appropriate ratio of each constituent monomer corresponding to the prevention or treatment of the obesity by improving the energy metabolism of the body or improving the heat production of the body through the alkyl resorcinol isdefined.

The invention discloses a method for preparing a strong biodegradable surfactant, which comprises the following steps of: (1) the preparation of raw materials: a raw materials B is prepared through carrying out molecular distillation / rectification on a raw material A, i.e. decarboxylated cashew nut shell crude oil, and the rest product is a raw material D; and (2) the preparation of a product: (i) the raw material B is added in a reactor, a basic catalyst is added, and the steps of heating and dehydrating under vacuum are carried out, and (ii) a reaction solution is led in epoxy ethane for reaction, then, acetic acid is added to neutralize, and then the step of discharging is carried out so as to obtain the product, i.e. meta-pentadecyl phenol polyoxyethylene strong biodegradable surfactant which comprises the following molecular structure shown as a formula (referred to a drawing), wherein R is a 15-carbon straight-chain alkyl which can be a saturated / unsaturated alkyl, and n is 1-30. The final biodegradability of the surfactant disclosed by the invention approaches to 100% at a seventh day through a cobalt thiocyanate method test and a detection according to the GB / T15818-2006 method which are carried out by the national detergent quality supervision and inspection center, so that the defect that the surfactant has poor biodegradability is overcome, and the surfactant meets the requirements of environmental protection in a greater degree.

The invention belongs to the field of marine biotechnology, and discloses a sea asparagus ferulic acid ester compound as well as a preparation method and application of the compound. The sea asparagus ferulic acid ester compound is ferulic acid pentadecane ester which has the structural formula shown in a formula (I). The ferulic acid pentadecane ester separated out from sea asparagus is the compound obtained from natural resource for the first time, and has high oxidative activity and strong activity for removing free radicals, thus the sea asparagus ferulic acid ester compound can be used as a symbolic antioxidant active ingredient and a natural free-radical scavenger in the sea asparagus.

The invention relates to a preparation method of alpha-cyclopentadecanone. According to the preparation method, pentadecane dicarboxylic acid produced by biological fermentation as a raw material is etherified to obtain diester pentadecanedioate; and methylbenzene as solvent and halogenated hydrocarbon as an assistant are subjected to a cyclization reaction to synthesize the alpha-cyclopentadecanone at high yield. The method for synthesizing the alpha-cyclopentadecanone has the characteristics of high conversion rate, fewer side reactions and high yield of alpha-cyclopentadecanone; and meanwhile, the method has the advantages of mild reaction condition, low energy consumption, high quality of products and low production cost of the product, is easy for realization of industrial production.

The present invention relates to a stratum opener agent which is applied to oilfield low permeability reservoir. The stratum opener agent comprises two parts: pre-disposal liquid and acid inhibitor system; according to the weight percentage, the pre-disposal liquid consists of solvent and surfactant as follows: 1-3% of organic solvent such as higher alcohol, 0.2-1% of non-ionized surfactant polyoxyethylene alkylolamide, 0.3-0.5% of pentadecane alkyl sulfonate, and the residual quantity of stratum water; according to the weight percentage, the acid inhibitor system comprises 5-10% of low-carbon organic acid, 1-3% of hydrofluoric acid, 0.5% of inhibitor thio-phosphate imidazoline polyoxyethylene ether, 1% of adsorption inhibitor and the residual quantity of water; the adsorption inhibitor comprises 0.5-2% of ethyl dimethylene-bi-cetyltrimethylammonium ammonium bromide, 0.2-1% of quaternary ammonium salt small kation, 2-5% of inorganic salt, 0.2% of 1,3-amine group propyl alcohol N-methyl sodium phosphate or potassium dihydrogen phosphate or sodium hexametaphosphate. The stratum opener agent can effectively improve the seepage capability of reservoir and achieve the objects of decompression and augmented injection and improving the yielding.

The invention discloses a composite wood plastic building template and belongs to the technical field of a building material. The composite wood plastic building template is prepared by the followingsteps: ball-milling and mixing rice husk powder, activated wood powder particles, activated sheet-like wood powder, petroleum resin and terpene resin to obtain mixed materials; ball-milling and mixingpolyvinyl chloride resin powder, 8,8-di[4-(2,3-epoxypropoxy)phenyl]pentadecane epoxy resin, phenolic resin and ethanediamine to obtain mixed resin materials; stirring and mixing the obtained mixed materials and the obtained mixed resin materials, heating and kneading, and heating and mixing to obtain mixed materials; and drying the mixed materials, drying, and performing compression molding forming and demolding to obtain the composite wood plastic building template. The composite wood plastic building template provided by the invention has excellent mechanical property.

The invention discloses a method for preparing hydrogenated biodiesel by catalyzing directional hydrodeoxygenation of grease, and belongs to the technical field of preparation of hydrogenated biodiesel. A molecular sieve supported catalyst is adopted to catalyze a hydrodeoxygenation reaction of a grease raw material in a hydrodecarboxylation / decarbonylation mode to obtain hydrogenated biodiesel, and the total content of pentadecane and heptadecane in the hydrogenated biodiesel is greater than 85%; the active component of the catalyst is Ni2P, and the dosage of the catalyst is 5%-10% of the weight of the reaction grease raw material; the main components of the hydrogenated biodiesel are pentadecane and heptadecane, and the selectivity of directional hydrodecarboxylation / decarbonylation is greater than 80%, the generation of reaction moisture is reduced, the defect that the catalyst is easily inactivated when meeting water is avoided, and the service life of the catalyst is prolonged; the reaction conversion rate of the prepared hydrogenated biodiesel is greater than 95%, the temperature and time of the grease hydrodeoxygenation reaction are greatly reduced, and the reaction energy consumption and cost are significantly reduced.

The invention relates to a preparation process for microemulsified diesel oil. The raw materials include, by mass, 60-77% of 0# diesel oil, 5-12% of a compound emulsifier, 4-10% of n-butanol, and 10-20% of water. The compound emulsifier is a mixture of sodium heavy alkyl benzene sulfonate, sodium dodecyl benzene sulfonate and 2-(pentadecanoyloxy)ethanesulfonic acid ester. The preparation process includes: adding the compound emulsifier into water, conducting stirring till complete dissolution, under ultrasonic condition, adding the product into a mixed solution of diesel oil and n-butanol dropwise, and after complete adding, conducting ultrasonic treatment, thus obtaining the microemulsified diesel oil. The process is simple. The prepared microemulsified diesel oil is transparent, has viscosity, flash point and condensation point similar to ordinary diesel oil, has stable time for over 6 months, and is convenient for storage and transportation. The price of the microemulsified diesel oil is lower than ordinary diesel oil on the market, can be used as commercial diesel oil, and has good economic benefits.

The invention discloses a pentadecane (ene) naphthalenediol polyoxyethylene ether sulfo succinate monoester disodium salt. The salt at least contains components in the structural formula (1), wherein -R1 is a straight chain structure of -C15H25, -C15H27, -C15H29 or C15H31, -R2 is -H or -CH3, -m is 2-25, and -n is 2-25. The invention further discloses a preparation method and application of the pentadecane (ene) naphthalenediol polyoxyethylene ether sulfo succinate monoester disodium salt as a surfactant. Please see the structural formula in the description.

The invention discloses a preparation method for alpha-hydroxy cyclo-pentadecanone. The method comprises the following steps of: adding a defined amount of dry organic solvent and metallic sodium into a dry reaction device which is equipped with a thermometer, a stirrer, a reflux condensing tube and a dropping funnel; increasing the temperature and boiling the solvent under N2 protection, quickly stirring and breaking the metallic sodium into fine particles; heating the reaction system to a certain temperature, and then slowly dropwise adding N,N,N',N'-tetra-alkyl pentadecane diamide dissolved in the dry organic solvent into the reaction device; after completely dropwise adding, keeping the temperature and reacting for a period of time; after the ending of the reaction, dropwise adding a defined amount of absolute ethyl alcohol and removing the remaining metallic sodium; after the metallic sodium is completely decomposed, filtering and removing the undissolved substances; washing the filtrate with water till becoming neutral; and drying the solvent by rotating, thereby acquiring a crude product of alpha-hydroxy cyclo-pentadecanone. According to the invention, the N,N,N',N'-tetra-alkyl pentadecane diamide is taken as a raw material for acyloin condensation, so that the method has the advantages of high product yield, high purity and suitability for industrial production.

The present invention provides improved synthesis process of pentadecyl triphenyl phosphonate as one important astaxanthin intermediate. The process prepares pentadecyl triphenyl phosphonate in an alcohol-concentrated sulfuric acid system directly without deprotection. The process of the present invention has less reaction steps and short reaction time, and is suitable for industrial production.

The invention provides an SEBS rubber additive, a preparation method and the SEBS rubber thereof. The SEBS rubber additive comprises the following components in weight percentage: 25-30% of hexadecane, 20-25% of heptadecane, 15-20% of pentadecane, 10-15% of octodecane, 10-15% of tetradecane, 2-5% of tridecane, and 2-3% of dodecane. When the SEBS rubber additive and the SEBS together form the rubber and a thermoplastic elastomer, the diluted smell generated at a high temperature is removed. Meanwhile, the odor is eliminated.

The invention relates to a macrocyclic oxamide Cu-Ni binuclear complex and a preparation method thereof. The chemical formula of the macrocyclic oxamide Cu-Ni binuclear complex is [(CuL)Ni(CH3OH)(phen)(ClO4)2], wherein L=5,6,14,15-dibenzo-1,4,8,12-tetra-azacyclo-pentadecane-7,13-divinyl-2,3-diketone, and phen=1,10-phenanthroline. The macrocyclic oxamide Cu-Ni binuclear complex is in a one-dimensional chain structure. The preparation method comprises the following steps of: mixing CuL and Ni(ClO4)2.6H2O methanol solutions and phen, namely the 1,10-phenanthroline; and then reacting to obtain a target product.

The invention relates to an epoxy activated affinity chromatography medium. Cellulose microspheres are taken as a matrix, a compound comprising 1,2-epoxy alkane, polylactic-co-glycolic acid and polyethylene glycol is crosslinked on the surfaces of the cellulose microspheres, and 1,2-epoxy alkane is linked with ligand, wherein 1,2-epoxy alkane comprises one or more of 1,2-epoxy dodecane, 1,2-epoxytridecane, 1,2-epoxy tetradecane, 1,2-epoxy pentadecane, 1,2-epoxy hexadecane, 1,2-epoxy heptadecane and 1,2-epoxy octodecane. The affinity chromatography medium has high epoxy density on the surface,contains numerous coupling ligands and has high affinity chromatography efficiency; meanwhile, the preparation process is simple and favorable for large-scale popularization and application.