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269 results about "Isocaproic acid" patented technology

Isocaproic acid is a methyl-branched fatty acid that is pentanoic acid with a methyl group substituent at position 4. It is a metabolite of 20 alpha-hydroxycholesterol It has a role as a human metabolite.

Compositions and methods for modulating metabolic pathways

Compositions and methods useful for inducing an increase in fatty acid oxidation or mitochondrial biogenesis, reducing weight gain, inducing weight loss, or increasing Sirt1, Sirt3, or AMPK activity are provided herein. Such compositions can contain synergizing amounts of a sirtuin-pathway activators, including but not limited to resveratrol, in combination with beta-hydroxymethylbutyrate (HMB), keto isocaproic acid (KIC), leucine, or combinations of HMB, KIC and leucine.
Owner:NUSIRT SCI

Halogen-free soldering agent for tin bismuth system unleaded tin paste and preparation method thereof

ActiveCN104858571ASolder joints are less corrosiveHigh surface insulationWelding/cutting media/materialsSoldering mediaActive agentEthyl group
The invention provides a halogen-free soldering agent for tin bismuth system unleaded tin paste and a preparation method thereof. The halogen-free soldering agent for the tin bismuth system unleaded tin paste consists of 20-47% of rosin, 8-20% of thickening agent, 0.5-12% of antioxidant, 4-15% of organic acid, 0.2-3% of ethylhexyl isocaprylic acid, 6-14% of organic amine, 0.5-8% of surface active agent,4-10% of thixotropic agent and the balance solvent. By optimizing selection of an active system of the soldering agent, the halogen-free soldering agent for the tin bismuth system unleaded tin paste enables the tin paste prepared from the halogen-free soldering agent for the tin bismuth system unleaded tin paste and tin bismuth system unleaded tin powder to not only contain no halogen element such as fluorine, chlorine, bromine, iodine and astatine, but also have good welding ability in soldering, and then generates full and bright soldering spots, does not generate black oxides, and is high in surface insulation resistance after the soldering, and is specially suitable for assembly welding of electronic parts and components, which require low soldering temperature.
Owner:深圳市同方电子新材料有限公司 +1

Carbon nano-tube / unsaturated polyester composite material and preparation thereof

The invention belongs to the technical field of nano materials, and particularly relates to a carbon nano tube / unsaturated polyester composite material and a preparation method thereof. The preparation method comprises the following steps: carboxylic acid and chloroformylation are carried out to the carbon nano tube, the carbon nano tube is modified by amino or hydroxyl acrylic ester compound, and the carbon nano tube which can carry polymerizable double bond. The modified carbon nano tube is dispersed in unsaturated polyester substrate, and cobalt iso-octoate and methyl ethyl ketone peroxide are adopted as an accelerating agent and a curing agent so as to prepare the carbon nano tube / unsaturated polyester composite material. The obtained composite material has higher heat stability and chemical stability. Compared with unsaturated polyester condensate which has same compositions and does not add the carbon nano tube, the volume resistivity of the cured composite material is reduced to 3 to 9 order of magnitude, and the surface resistivity is reduced to 3 to 8 order of magnitude. The invention has simple technique and more practicability. The composite material can be applied to the shell or coating of the equipment in the fields of manufacturing motors of electric appliances, chemical machines and the like.
Owner:TONGJI UNIV

Anti-extreme-pressure lubricant for internal combustion engine

An anti-extreme-pressure lubricant for an internal combustion engine is prepared from the following raw materials in parts by weight: 6-11 parts of trimethyl citrate, 2-6 parts of sodium dodecyl benzene sulfonate, 7-9 parts of trimethyloctane, 2-5 parts of molybdenum disulfide, 3-8 parts of calcium alkyl benzene sulfonate, 4-10 parts of sodium borate, 15-23 parts of base oil, 1-4 parts of epoxy novolac, 2-6 parts of oxalic acid, 1-3 parts of magnesium sulfonate, 4-10 parts of propylene glycol monomethyl ether acetate, 2-6 parts of zinc octoate, 7-10 parts of dipentaerythritol and 2-4 parts of sodium chloride. The anti-extreme-pressure lubricant has the benefits that the extreme pressure resistance is excellent, the cleaning property is achieved, impurities in the internal combustion engine can be washed away, and a favorable lubrication effect can be taken.
Owner:QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS

Dendritic grafted polycaprolactone

The invention discloses an arborescent graft polycaprolactone, and also discloses an arborescent graft polycaprolactone-polyethylene glycol copolymer and application of the copolymer as a drug carrier. In the invention, a novel arborescent graft polycaprolactone-polyethylene glycol copolymer is prepared by preparing a new epsilon-caprolactone derivative (4-benzyloxy-ethoxy-epsilon-caprolactone; BECL) from 1,4-cyclohexanediol used as a raw material, then carrying out ring-opening copolymerization on the BECL and epsilon-caprolactone in the presence of stannous iso-caprylate used as a catalyst, carrying out palladium-carbon catalytic hydrogenation to remove benzyl protecting groups to obtain the arborescent graft polycaprolactone with multiple hydroxyl groups, and finally grafting and introducing hydrophilic polyethylene glycol chain segments to the hydroxyl groups with phosgene as a chain extender. In an aqueous medium, the hydrophobic arborescent graft polycaprolactone shrinks to forma core, and the hydrophilic polyethylene glycol chain segments stretch at the periphery, thus forming a unimolecular micelle. As a drug carrier, the micelle has the advantages of large drug carrying capacity and good stability.
Owner:WUHAN UNIV

Method for preparing isooctoate of rare earth metal and application thereof

The invention provides a method for preparing isooctoate of rare earth metal and application thereof. The method comprises the following steps: adding certain amount of isooctoate and alkaline solution in a reactor, and performing stirring reaction for saponification; adding aviation kerosene into reaction solution, raising the temperature, adding rare earth nitrate solution when the temperature reaches a certain value, and keeping the temperature for reaction; and after certain reaction time, standing and layering reaction solution, and obtaining an organic layer, namely solution containing the isooctoate of rare earth metal. The isooctoate of rare earth metal can be taken as a dispersant of the current diesel fuel on market. The method has the characteristics of simple reaction process and easily obtained raw materials; and the isooctoate of rare earth metal is added to the diesel fuel so as to promote the combustion of the diesel fuel, reduce carbon deposit in the combustion process, and reduce the discharge of environmentally harmful substances in the tail gas of an engine.
Owner:BEIJING UNIV OF CHEM TECH

High strength modified polyester resin coating

The invention discloses a high strength modified polyester resin coating. The coating comprises, by weight, 50-80 parts of nanometer titanium dioxide modified polyester resin, 3-10 parts of carboxyl-terminated polybutadiene, 3-10 parts of hydroxyl-terminated polybutadiene rubber, 3-10 parts of isoprene-styrene block copolymer, 5-10 parts of amino resin, 2-15 parts of silicon carbide, 3-10 parts of polyacrylonitrile fiber, 2-8 parts of montmorillonite, 0.1-1 part of zinc isoocatanoate, 0.1-0.5 parts of sodium p-toluenesulfonate, 12-25 parts of a solvent, 0.2-1 part of 5-chloro-2-methyl-4-isothiazolin-3-one, 2-5 parts of a silane coupling agent KH560, 0.5-1.5 parts of triphenyl phosphate and 1-5 parts of an assistant. The high strength modified polyester resin coating has the advantages of high strength, good toughness, small shrinkage rate during curing, and excellent contamination resistance.
Owner:GUANGDE MEITUSHI CHEM

Application of zinc isoocatanoate in reduction on agglomeration of white carbon black, white carbon black dispersing agent containing zinc isoocatanoate and preparation method thereof

The invention provides application of zinc isoocatanoate in reduction on agglomeration of white carbon black. According to research, the inventor discovers that the polarity of a silanol group on the surface of white carbon black can be reduced by zinc isoocatanoate so as to play a role in dispersing white carbon black. Under the support of the function, zinc isoocatanoate can be used in the application field of multiple white carbon blacks. The invention also provides a white carbon black dispersing agent containing zinc isoocatanoate and a preparation method thereof. The method is simple, free of pollution, energy-saving and environment-friendly; the obtained dispersing agent has functions of physical dispersion and chemical dispersion, and is suitable for dispersing sizing materials with high filling amount of white carbon black, so that the dispersibility of the white carbon black can be improved, the processing performance of the sizing material also can be improved, the mixing time is shortened, the smoothness and dispersion uniformity of the sizing material is increased, the flowability of the sizing material in the processing and mixing stage is increased, and the Mooney viscosity is reduced; moreover, the white carbon black dispersing agent has a strengthening effect, and the mechanical property of vulcanized rubber is improved.
Owner:SHANDONG YANGGU HUATAI CHEM

High solid anti-scratching unsaturated polyester matte top coat for coating wooden products

The invention discloses a high solid anti-scratching unsaturated polyester matte top coat for coating wooden products. The top coat comprises the following components according to a ratio: the ratio of a top coat main agent to an accelerator to an initiator to a reactive diluent is equal to 100:(1-2):(1-2):(25-30), wherein the top coat main agent comprises the following components in parts by weight: 65-75 parts of unsaturated polyester resin, 5-7 parts of extinction powder, 5-8 parts of glass powder, 2-3 parts of an addition agent and 13-17 parts of reactive diluent. The accelerator is a cobalt iso-octoate solution, the initiator is a methyl ethyl ketone peroxide solution, and the diluent is the reactive diluent. Compared with a polyurethane top coat which is widely applied to the market, the top coat has the characteristics of no solvent (no volatile organic compounds (VOC) emission), high richness, good fallibility, high hardness, excellent scratching resistance and high coating efficiency.
Owner:上海展辰涂料有限公司 +2

High-strength tear-resistant hangtag and making process thereof

ActiveCN110628123AHigh tensile strengthHigh tensile strength, high tear strengthHigh intensityProcessing aid
The invention discloses a high-strength tear-resistant hangtag and a making process thereof. The high-strength tear-resistant hangtag is prepared from the following raw materials by weight: 300-360 parts of an ethylene-vinyl acetate copolymer, 76-88 parts of high-density polyethylene, 55-64 parts of phenylatylene silicone rubber, 42-48 parts of nitrile rubber, 24-30 parts of basalt fiber, 18-22 parts of nano-silica, 6-9 parts of a foaming agent, 3-4 parts of zinc isooctanoate, 8-12 parts of a processing aid, 4-6 parts of a bridging agent, 10-14 parts of an antioxidant and 10-15 parts of a heatstabilizer. The high-strength tear-resistant hangtag provided by the invention has the characteristics of low density, light weight, high tensile strength, high tearing strength, good mechanical properties and durability, and well takes ultralight weight and excellent mechanical properties into consideration.
Owner:石狮市创意纸塑制品有限公司

Isooctanoic acid mercapto alcohol ester based organic tin compound and its preparation method and use

The present invention relates to mercapto ethanol isooctanoate type organic tin compound and its preparation process and application. The compound has the structural expression of RnSnX(4-n), where, R is C1-C30 alkyl group or C1-C10 beta-alkoxyl carbonylalkyl group, X is mercapto ethanol isooctanoate, and n is 1 or 2. During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.
Owner:SOUTH CHINA UNIV OF TECH

Polypropylene material resistant to aging and impact at low temperature as well as preparation method of polypropylene material

The invention discloses a polypropylene material resistant to aging and impact at low temperature as well as a preparation method of the polypropylene material. The polypropylene material comprises the raw materials such as polypropylene resin, butadiene rubber, an ethylene-vinyl acetate copolymer, diethyl phthalate, triethylene glycol di-2-ethylhexoate(triglycol dioctate), dilauryl thiodipropionate, dibasic lead stearate, hexamethylenetetramine, tristearin, cobalt iso-octoate, ethyleneglycol dimethacrylate, a silane coupling agent KH550, erucicamide, hollow glass microspheres, andalusite powder and precipitated white carbon black. The butadiene rubber and the ethylene-vinyl acetate copolymer are added into polypropylene resin, so that the cold resistance of the polypropylene material is improved, and the resistance to impact at low temperature is enhanced; the hollow glass microspheres and the andalusite powder are added for combined utilization, so that the tensile strength and impact strength can be synergistically improved; through addition of triethylene glycol di-2-ethylhexoate(triglycol dioctate) and the like, the cold resistance of the polypropylene material is further improved; through addition of nanometer titanium phosphate, the aging resistance of the polypropylene material is improved under the joint action of zinc oxide, precipitated white carbon black and nanometer titanium phosphate.
Owner:蔡逸

Additive for improving low-temperature startup of methanol diesel oil

The invention discloses an additive for improving low-temperature startup of methanol diesel oil. The additive consists of 10-30 parts of ethyl acetate, 15-45 parts of dibutyl oxalate, 20-40 parts of diisopentyl oxalate, 0.3-5 parts of vinyl ester of versatic acid 10, 0.2-3 parts of N-(beta-aminoethyl)-gamma-aminopropyl methyl dimethoxysilane, 7-20 part of 2,5-dimethoxytetrahydrofuran, 2-15 parts of zirconium iso-octoate, 8-25 parts of 2-nitro-2-methyl-propyl nitrate, 10-40 parts of 2-methoxyl-ethyl nitrate, 15-30 parts of 3-tetrahydrofuran nitrate, 12-30 parts of methyl-benzyl-alcohol nitrate, 0.2-10 parts of 3-methyl-2-nitro-2-hexene, 0.2-10 parts of 3-ethyl-2-nitro-2-hexene, 0.1-10 parts of barium nitrate, 0-10 parts of manganese dioxide and 0-20 parts of potassium pentachloride. The low-temperature startup of the methanol diesel oil can be improved, the combustion performance of the methanol diesel oil becomes better, and the tail gas emission is obviously reduced by mixing the additive with the methanol diesel oil.
Owner:山西华顿实业有限公司

Glitter powder sequin membrane and preparation method thereof

InactiveCN106010411AOvercome the disadvantages of not being environmentally friendlyBoilableNon-macromolecular adhesive additivesPolyureas/polyurethane adhesivesPhysical chemistryEngineering
The invention relates to a glitter powder sequin membrane and a preparation method thereof. The glitter powder sequin membrane comprises a PET base material layer, a first water glue layer and a glitter powder layer, wherein the water glue of the first water glue layer is obtained by processing the following raw materials in parts by weight: 20-28 parts of ethylene vinyl acetate, 30-45 parts of PU resin copolymer emulsion, 15-23 parts of isooctoate and 15-25 parts of water. The preparation method of the glitter powder sequin membrane comprises the following steps: (I) preparation of glitter powder: selecting a PET base material, aluminizing and coloring, and slitting and powdering to obtain the glitter powder; and (II) preparation of the glitter powder sequin membrane: selecting a PET base material, uniformly coating the PET base material with appropriate water glue, uniformly spreading appropriate glitter powder, and performing extrusion, powder absorption, drying, rolling and slitting processes to obtain the glitter powder sequin membrane. In the invention, oily glue is replaced by waterborne glue; the glitter powder sequin membrane is obtained by gluing, automatic powder spreading, extrusion, powder absorption, protection layer coating and drying; the defect that the oily glue is not environment-friendly is overcome; and the product has the advantages of brightness, beauty, easiness in powdering without tool penetration, boiling resistance, scratch resistance and no falling.
Owner:WENZHOU HONGDA LASER PICTURE
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