29 results about "Pentadecane" patented technology

The invention relates to the field of plasma separation and detection, in particular to a composition for separating plasma and a using method thereof. The composition comprises: a phase change component, which is selected from n-alkanes, which are selected from at least one of n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-eicosane, n-heneicosane or n-docosane; a liquid phase carrier component, wherein the liquid phase carrier component is selected from silicone oil; the structural framework and rheology regulation and control component comprises fumed silica, and the structural framework and rheology regulation and control component comprises fumed silica; the dispersion and stabilization auxiliary agent component is selected from at least one of TiO2 and BaSO4, the density adjusting filler component is selected from at least one of TiO2 and BaSO4, and the dispersion and stabilization auxiliary agent component comprises a silane coupling agent. According to the device, plasma and blood cells can be reliably, rapidly and effectively separated only through one-time low-temperature centrifugation, and remixing caused by transportation jolting can be avoided.

Administration of pentadecanoylcarnitine or pentadecanoic acid is provided for prevention, management or treatment of aggression, allergies, allergic rhinitis, Alzheimer's disease, anxiety and anxiety disorders, amyotrophic lateral sclerosis, arthritis, asthma, atherosclerosis, attention-deficit hyperactivity disorder, bipoloar disorder, brain damage, cancer, cardiovascular disease, cholestatic pruritis, depression, chronic obstructive pulmonary disease (COPD), cocaine abuse, cough, dermatitis, depression, drug-seeking behavior, gastrointestinal disorders, facial erythema associated with rosacea, glaucoma, hepatic diseases, hyperactive bladder, hypersensitivity disorders, hypertension, impulsivity, inflammation, mental disorders and conditions, metabolic disorders, migraines, nasal and sinus congestion, nausea, neuropathic pain with and symptoms of multiple sclerosis, neurological and neuropsychiatric disorders, obesity, obsessive-compulsive disorders, opioid-induced respiratory depression, osteoarthritis, pain, Parkinson disease, pathological gambling, peptic ulcers, schizophrenia, sleep disorders, spinal cord injury, tardive dyskinesia, tics and behavioral problems with Tourette's syndrome; as well as for supporting appetite, cardiovascular health, hematologic health, memory, metabolic health, mood, prolonged REM sleep, renal health, sexuality, sociability and metabolic, hematological, renal, and weight loss.

A cardanol based coupling agent is disclosed. The coupling agent is obtained by reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3-pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a carbonyl compound. A process for preparing a cardanol based coupling agent is also disclosed. The process comprises reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3-pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a carbonyl compound.

Nanocomposites comprising nanoparticles, small molecules, and block copolymer (BCP)-based supramolecules are provided. The nanoparticles, small molecules, and BCP-based supramolecules self-assemble into a plurality of nanosheets that form a multilayer nanocomposite. The nanoparticles, small molecules, and BCP-based supramolecules can be Zr02, 3-pentadecylphenol (PDP), polystyrene-b-poly(4-vinylpyridine) block copolymer (PDP) 1, respectively. b A method of producing a nanocomposite by contacting nanoparticles, small molecules, and BCP-based supramolecules with a solvent and drying to remove the solvent to allow self-assembly is also provided. The nanocomposites provided herein can be used as a barrier material against volatile organic compounds, water, oxygen, or electrons, and can be used as a coating on various substrates and as a packaging material, or as an optical material.

The present application relates to a fragrance composition reproducing the fragrance of white lotus and a skin external composition and a fragrance product containing the fragrance composition reproducing the fragrance of white lotus, and particularly relates to a fragrance composition reproducing the fragrance of white lotus with excellent preference by adding 2-phenylethanol to pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. analyzed by SPME method. The fragrance composition provided by the present application contains pentadecane, p-xylene, heptadecane, sabinene, limonene, myrcene, alpha-terpineol, etc. which are main components of the fragrance of white lotus, and also contains 2-phenylethanol, thereby reproducing the fragrance of white lotus and improving the preference of the fragrance.

To provide compounds and compositions for reducing most common opioid-induced hyperalgesia associated with microglial hyperactivation.SOLUTION: 2-pentadecyl-2-oxazoline (PEA-OXA) for use as an opioid adjuvant for preventing the development of or in the treatment of opioid-induced hyperalgesia (OIH), wherein the PEA-OXA is administered with or in combination with an opioid. Wherein the administration is separate, together or simultaneous.SELECTED DRAWING: None

2-Pentadecyl-2-oxazoline (also known as palmitoylethanolamide oxazoline or PEA-OXA) is used to counteract hyperalgesia induced by the most common opioids (OIH) associated with microglial hyperactivation. In particular, PEA-OXA is administered to humans and animals to prevent or treat some of the adverse effects of opioids by controlling immune hyperactivation. The PEA-OXA is administered separately, sequentially or jointly with the opioid.

The present invention relates to the technical field of electrochemistry, relates to the electrochemical synthesis of a muscone precursor, and in particular to a micro-reaction process and system for synthesizing a muscone precursor by means of circulating flow electrolysis. An electrolysis micro-reactor is used to perform a circulating Kolbe electrolysis reaction on a raw material 1 and a raw material 2 in an electrolyte solution to synthesize dimethyl 3-methylpentadecanedioate. During the circulating Kolbe electrolysis reaction, an electrolyzed material discharged from the electrolysis micro-reactor is conveyed to a circulating solution storage tank to discharge a gas generated during electrolysis, and the electrolyzed material from which the gas has been discharged is then conveyed into the electrolysis micro-reactor again for an electrolysis reaction. The present invention shortens an ion conduction distance by means of a micro-channel structure of an electrolysis micro-reactor, promotes, by means of controllable circulating flow of an electrolyte solution, the timely discharge of a gas generated at an electrode, and reduces a cell voltage while the current density is guaranteed. The present invention has the characteristics of low energy consumption, concise process, and easy control.

The invention provides fireproof particles and a preparation method and application thereof, and belongs to the technical field of carbon capture, utilization and storage and the technical field of fireproof materials. The fireproof particle sequentially comprises a composite inner core, a silicon dioxide layer, a super-hydrophobic coating and fins from inside to outside, wherein the composite inner core comprises a mixture of biochar, a mineral material, ammonium polyphosphate and pentacosane; the silicon dioxide layer is located on the surface of the composite core; the super-hydrophobic coating comprises C12-C18 straight chain alkyl trimethoxy silane which is bonded on the surface of the silicon dioxide layer; and the fins are adhered to the surface of the super-hydrophobic coating.

A cardanol based coupling agent is disclosed. The coupling agent is obtained by reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3- pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a diisocyanate compound. A process for preparing a cardanol based coupling agent is also disclosed. The process comprises reacting 3-pentadecyl phenol ethoxylate with sulfur to obtain a sulfurized 3-pentadecyl phenol ethoxylate and reacting the sulfurized 3-pentadecyl phenol ethoxylate with a diisocyanate compound.

The invention provides a marine fungus-derived petroleum degrading enzyme, a gene A6006 and application thereof, belongs to the crossing field of biological enzyme technology and environmental remediation, and provides the marine fungus-derived petroleum degrading enzyme, the amino acid sequence of which is shown as SEQ ID NO.2. The gene A6006 of the marine fungus-derived petroleum degrading enzyme has the advantages that the gene A6006 of the marine fungus-derived petroleum degrading enzyme has the advantages that the gene A6006 of the marine fungus-derived petroleum degrading enzyme has the advantages that the gene A6006 of the marine fungus-derived petroleum degrading enzyme can be used for degrading petroleum; the nucleotide sequence of the gene after being optimized by an escherichia coli codon is shown as SEQ ID NO. 1; the marine fungus-derived petroleum degrading enzyme provided by the invention can degrade dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, hexadecanoic acid, naphthalene, phenanthrene and pyrene; and the degradation effect on tetradecane, hexadecane and naphthalene is better.

This disclosure relates to solid forms of (2S)-2-[(10S,17E)-16-ethoxy-6,8,10,12,20-pentamethyl-2,8,10,11,12,13-hexahydro-14H-5,3-(azenometheno)tripyrazolo[3,4-f:3',4'-j:4'',3''-n][1,4]oxazacyclopentadecin-14-yl]propan-1-ol that are useful in the treatment of disease, such as cancer, in mammals. This disclosure also relates to the preparation of such solid forms, including polymorphs, salts, cocrystals, solvates, hydrates, or a combination thereof. This disclosure also relates to compositions including such solid forms, and to methods of using such compositions in the treatment of diseases, such as cancer, in mammals, especially in humans.

The invention belongs to the technical field of energy, and in particular relates to a biological blended fuel which comprises the following components: methyl palmitate, octadecane-9. 12-dienoic acid methyl ester, cis-11-octadecenic acid methyl ester, 2-methyl undecane, 3-methyl undecane, 3, 6-dimethyl decane, 3.7-dimethyl decane, 3, 8-dimethyl-undecane, 3, 8-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, the preparation method comprises the following steps: adding 1, 10-methyl eicosane, 2, 5-dimethyl dodecane, 5-methyl tridecane, 4-methyl-tridecane, 2-bromododecane, 3-methyl-5-propyl nonane, 3-methyl-tetradecane, n-nonane, 6-methyl undecane, 2, 5-dimethyl decane, C16H34, 5-methyl-tetradecane, 7-methyl heptadecane, 4-methyl tetradecane, 3-methyl-tetradecane and 2.5-dimethyl tridecane into a reaction kettle; methyl tetradecane, n-pentadecane and tetradecane; according to the invention, 10-methyleicosane and 5-methyltetradecane are used for providing a high volume calorific value, and the flame temperature is improved compared with that of common biodiesel.

The application provides a synthesis method of dimethyl terephthalate, which comprises the following steps: adding a sulfonic acid catalyst into methanol and terephthalic acid to perform a first esterification reaction to obtain a first esterification product; adding methanol into the first esterification product to perform a second esterification to obtain a second esterification product; adding methanol into the second esterification product to perform crystallization to obtain a crystallization product; and performing distillation on the crystallization product to obtain dimethyl terephthalate; wherein the catalyst comprises one or more than two combinations of hexyl benzene sulfonic acid, dodecyl sulfonic acid, pentadecyl sulfonic acid and dodecyl benzene sulfonic acid. Compared with a traditional concentrated sulfuric acid catalyst, the catalyst used in the application itself, especially after adding an additive, greatly reduces the corrosion of the catalyst to equipment, has good reusability and is more in line with the requirements of green chemistry.

The present invention discloses a bio-based amino polyol brominated epoxy resin, a preparation method, and applications. The bio-based amino polyol brominated epoxy resin has the following structure: wherein R and R1 are both a carbon pentadecanyl group, and R2 is an amino polyol. The polyol of the present invention can be used as a reactive flame retardant in polyurethane foam, which can maximize the mechanical properties of the material; at the same time, the processing technology is simple; and the bio-based amino polyol brominated epoxy resin contains a flame retardant group (Br), which can be used as a polyurethane foam synthetic material and a flame retardant, thereby improving the flame retardant properties of the product. In addition, the amino polyol structure contained in the bio-based amino polyol brominated epoxy resin can completely replace the amino catalyst in the polyurethane foam synthesis, realizing multifunctionality in one.

The subject matter of the present invention is the use of 2-Pentadecyl-2-oxazoline (also known as PEA-OXA) in association with butyric acid, in acidic or salified form, in the treatment of epilepsy and associated psychiatric comorbidities (such as social isolation). In particular, the present invention relates to PEA-OXA for use, in humans and animals, in the prevention and treatment of epileptogenesis and comorbidities associated with epilepsy, such as limited social interaction, wherein PEA-OXA is administered in association or in combination with butyric acid or a salt thereof, wherein said administration is separate, joint, or simultaneous.

According to the degreaser for removing oil on the surfaces of the silver and silver alloy materials and the application, animal and vegetable oil, mineral oil and polishing wax can be emulsified at one time to enable the particle size to be smaller than 100 nm and the emulsification stabilization time to be larger than or equal to 24 h at the temperature of 25-45 DEG C and the oil concentration range of 0.5-5 g / L through gradient HLB cooperation by means of four non-ionic surfactants, the whole system does not contain sulfur, phosphorus and nitrogen heterocyclic rings, the COD contribution is low, and the application range is wide. Discharge can be directly introduced into a conventional biochemical treatment tank, and nonionic compounds only form lt on the surfaces of silver and silver alloy; a weak adsorption layer with the thickness of 3 nm does not interfere with dense deposition of a corrosion inhibition film of a BTA-triethanolamine synergistic corrosion inhibition system, efficient oil removal and no corrosion are ensured, pentadecyl phenol polyoxyethylene ether has solubilizing and conveying effects on BTA, the corrosion inhibitor reaches the metal surface at the microsecond level, the corrosion inhibition efficiency is improved by 20-30%, and the corrosion inhibition effect is good. And triple breakthrough of'efficient oil removal, no corrosion and easy rinsing 'on the surfaces of the silver and the silver alloy is realized, so that the cleaning agent has outstanding creativity in the aspects of materials, formulas and processes.

The present invention provides a method for synthesizing dimethyl terephthalate, comprising: adding a sulfonic acid catalyst into methanol and terephthalic acid, performing a primary esterification reaction, then adding methanol, and performing a secondary esterification reaction; and crystallizing and distilling a secondary esterification product to obtain dimethyl terephthalate, wherein the catalyst comprises hexylbenzenesulfonic acid, dodecyl sulfonic acid, pentadecyl sulfonic acid or dodecylbenzene sulfonic acid. Compared with a concentrated sulfuric acid catalyst, the catalyst used in the present invention greatly weakens the corrosion of the catalyst to a device, and has good repeated use performance.

The invention provides a marine fungus-derived petroleum degrading enzyme, a gene A5124 and application thereof, belongs to the crossing field of biological enzyme technology and environmental remediation, and provides the marine fungus-derived petroleum degrading enzyme, the amino acid sequence of which is shown as SEQ ID NO.2. The gene A5124 of the marine fungus-derived petroleum degrading enzyme has the advantages that the gene A5124 of the marine fungus-derived petroleum degrading enzyme has the advantages that the gene A5124 of the marine fungus-derived petroleum degrading enzyme has an amino acid sequence shown as SEQ ID NO.2; the nucleotide sequence of the gene optimized by an escherichia coli codon is as shown in SEQ IN NO. 1; the marine fungus-derived petroleum degrading enzyme provided by the invention can degrade dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, hexadecanoic acid, naphthalene, phenanthrene and pyrene; and the degradation effect on tetradecane, hexadecane, phenanthrene and pyrene is better.

A thermoplastic molding composition comprising at least one thermoplastic polyamide, as com-ponent A; red phosphorous, as component B; at least one fibrous and / or particulate filler, as component C; and wherein component A comprises at least one polyamide of A1) units derived from 1, 5-pentanediamine as component A1; A2) units derived from at least one aliphatic dicarboxylic acid, preferably selected from the group consisting of adipic acid, succinic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, tridecanedioic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, heptadecanedioic acid, and octadecanedioic acid, as component A2; A3) units derived from at least one aromatic dicarboxylic acid, preferably selected from the group consisting of terephthalic acid, isophthalic acid, and phthalic acid, as component A3; wherein the molar ratio of component A1 to the sum of components A2 and A3 is 1-1.05 to 0.95; a process for preparing of the inventive thermoplastic molding composition; the use of the in-ventive thermoplastic molding composition for producing fibers, foils or moldings; and fibers, foils or moldings comprising the inventive thermoplastic molding composition.

The invention discloses a long-acting slow-release ice-melting microcapsule and a preparation method thereof, the long-acting slow-release ice-melting microcapsule comprises a core material and a wall material coating the core material, the core material comprises a carrier, and a phase change material and an ice-melting substance loaded on the carrier; the carrier is any one of diatomite, expanded graphite and expanded perlite; the phase change material is at least two of dodecane, tridecane, tetradecane, pentadecane, n-caprylic acid and lauric acid; the ice melting substance is a compound of magnesium nitrate, urea and potassium acetate in a mass ratio of (4-5): (2-3): 1; and the wall material is a polyurethane acrylic acid hybrid. The ice-melting microcapsule provided by the invention only has a slow release function, and the ice-melting substance wrapped in the wall material is slowly released at the temperature of 0 DEG C or below; the adopted ice melting substance does not cause damage to the road and the environment; the adopted wall material is good in weather resistance, so that the wall material of the ice-melting microcapsule is not easy to age, the service life of the whole ice-melting microcapsule is effectively prolonged, and the use timeliness of the whole ice-melting microcapsule is effectively improved.

The present invention belongs to the field of biopesticide technology and specifically discloses a parasitic wasp compound attractant. The disclosed parasitic wasp compound attractant comprises the following components by weight: 0.5% to 99% of an attractant active ingredient; 1% to 99.5% of an auxiliary material; the attractant active ingredient being a mixture of cis-jasmone, pentadecane, and cadinene. The compound attractant of the present invention can attract parasitic wasps, improving their ability to search and locate target pests, thereby increasing their parasitic efficiency, thereby achieving effective biological control of pests, reducing the use of chemical pesticides, and ensuring the safety of vegetable products.

The invention discloses dual-encapsulation type phase change concrete with a dynamic heat regulation and control function and a preparation method of the dual-encapsulation type phase change concrete, and belongs to the technical field of building materials. A dual-packaging structure of internal adsorption and external fixation and sealing is adopted, firstly, an n-tridecane / n-pentadecane eutectic mixture is loaded in a porous diatomite matrix, and then secondary packaging is performed through cement powder, so that the thermochemical stability of a phase change material is maintained, and the technical problems that traditional phase change concrete is easy to leak and poor in durability are effectively solved. The preparation method is simple in process, low in cost and environment-friendly and economical, the shaped composite diatomite-based phase change aggregate is added into the concrete, so that the concrete has excellent low-temperature heat regulation and control performance, freeze-thaw cycle damage can be remarkably relieved, the durability of the concrete is improved, meanwhile, the heat conductivity coefficient is reduced, the specific heat capacity is improved, and heat can be effectively stored / released. The system is particularly suitable for scenes such as cold region buildings and cold-chain logistics, heating energy consumption can be reduced, and an innovative solution is provided for green building development and double-carbon target implementation.

Tick repellents include one or more of 2-methylisoborneol (2-MIB), D-borneol, L-borneol, and a blend of formic acid, undecane, tridecane, (Z)-4-tridecene, heptadecane, (Z)-9-tricosene, pentadecane, (Z)-9-nonadecene, and (Z)-9-heneicosene; and a carrier material. A method of controlling ticks can include dispensing the tick repellent. Personal care products for topical application can include the tick repellent.

The invention relates to the technical field of textiles, in particular to an elastic fiber and a preparation method thereof. The preparation method of the elastic fiber comprises the steps of material preparation, composite fiber preparation, modification and the like, octamethylcyclotetrasiloxane, 3-aminopropyltriethoxysilane and 3-aminopropyltrimethoxysilane react to generate amino silicon oil, and 4-vinyl-1, 2-cyclohexene oxide is adopted to modify the prepared amino silicon oil, so that the elastic fiber is obtained. The prepared smoothing agent effectively avoids swelling of the elastic fibers, and endows the elastic fibers with good softness and smoothness; sodium pentadecyl sulfate, didodecyl dimethyl ammonium bromide and lauramide propyl amine oxide jointly form an antistatic agent, and an interfacial film is formed on the surface of the elastic fiber, so that the elastic fiber has a good antistatic effect.

This invention discloses the preparation and application of a molecularly imprinted photocatalyst for the adsorption and degradation of ginkgolic acid, belonging to the field of photocatalytic materials technology and also relating to the field of purification and preparation technology of traditional Chinese medicine raw materials. This invention combines molecular imprinting technology with photocatalysis technology, achieving for the first time the integrated selective adsorption and photocatalytic degradation of ginkgolic acid in ginkgo leaf extract. The photocatalytic core of the molecularly imprinted photocatalyst is composed of magnetic lignocellulose and TiO2, endowing the catalyst with excellent visible light response characteristics and high-efficiency photocatalytic performance. Salicylic acid and 3-pentadecanylphenol are used instead of pure ginkgolic acid as dual pseudotemplate molecules to construct the imprinted layer. This design significantly reduces preparation costs while ensuring the catalyst's specific recognition ability. The catalyst prepared by this invention maintains a high adsorption capacity and photocatalytic degradation rate after five cycles of use, exhibiting good reusability and showing great promise for industrial application in the production of medicinal raw materials from ginkgo leaf extract.

The present invention belongs to the field of natural medicine technology, and particularly relates to an Aspergillus 5,6-dihydropyran-2-one derivative, 3-acetamido Aspergillus pyrone A, a preparation method, and applications thereof. The Aspergillus 5,6-dihydropyran-2-one derivative, 3-acetamido Aspergillus pyrone A, of the present invention has a structural formula of #imgabs0# and is named 3-acetamido-5-hydroxy-6-[(7-vinyl-15-hydroxy)-pentadecyl]-5,6-dihydropyran-2-one. 3-acetamido Aspergillus pyrone A can be used in the preparation of antibacterial drug precursors, laying a material foundation for the further biopharmaceutical development and application of antibacterial ingredients.

The present application belongs to the field of essence and fragrance and pharmaceutical engineering, and relates to a method for preparing muscone. 4-methylcyclopentadecanone is placed in a solvent with sulfur and a secondary amine under an inert atmosphere, heated to 64-120 DEG C, and reacted for 12-42 hours to obtain muscone; wherein the secondary amine is an organic compound containing a secondary amine group. The present application can convert the by-product 4-methylcyclopentadecanone into 3-methylcyclopentadecanone, i.e. convert the muscone by-product into muscone, which not only enables high-value utilization of the muscone by-product, but also reduces the cost in the production process of muscone.

This invention discloses a phase change encapsulated microsphere, comprising a core carrier, an alkane material, and an epoxy resin; the alkane material is distributed inside the core carrier, and the epoxy resin coats the surface of the core carrier; wherein the alkane material includes tetradecane, pentadecane, and paraffin. The phase change encapsulated microsphere of this invention exhibits excellent heat storage performance and, when applied to cement systems, can significantly reduce the heat of hydration of cement, meeting the requirements of cementing under low-temperature conditions.