Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

795 results about "Triethyl citrate" patented technology

Triethyl citrate is an ester of citric acid. It is a colorless, odorless liquid used as a food additive (E number E1505) to stabilize foams, especially as whipping aid for egg white. It is also used in pharmaceutical coatings and plastics.

Preparation method of triethyl citrate

The invention relates to a preparation method of triethyl citrate. The preparation method is as follows: by deeply studying the preparation process of triethyl citrate, setting a reaction feed ratio; then adding catalyst to perform reflux reaction; then utilizing phenolphthalein as an indicator and sodium hydroxide to perform titration to determine the reaction end point; utilizing weak base to neutralize less acidic materials in the obtained product, and eluting sodium carbonate with purified water; and finally utilizing activated carbon to decolor, thus obtaining the pure triethyl citrate product. Compared with the prior art, the preparation method provided by the invention has the advantages that the reaction end point is strictly controlled, unnecessary side reactions are reduced, thereduction of the product quality and the waste of cost caused by inadequate reaction or too long reaction time can be avoided; by controlling the temperatures of the processing steps, the damages caused by side reactions are reduced as far as possible; by selecting the decoloring mode, an ideal, colorless and transparent liquid product can be obtained; and the product quality is above the national standard: especially the acid value is controlled to be about 0.2 while the acid value of the national standard is 1.0, and the stability of the product when stored for a long time is higher than those of the like products.
Owner:蚌埠丰原涂山制药有限公司

Montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton and preparation method thereof

The invention discloses montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton, which consists of a top surface layer, a back surface layer and a fiber cotton layer, wherein the fiber cotton layer is clamped and arranged between the top surface layer and the back surface layer, and the top surface layer and the back surface layer are made of non-woven fabric materials. The montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton is characterized in that the non-woven fabric is prepared form the following ingredients in parts by weight by a melt blowing method: 100 parts of isotactic polypropylene, 10 to 12 parts of polylactic acid, 10 to 12 parts of montmorillonite powder, 5 to 7 parts of dilauryl thiodipropionate, 2 to 3 parts of zinc oxide, 12 to 15 parts of diethylene glycol dibenzoate, 4 to 6 parts of triethyl citrate, 2 to 3 parts of zinc chloride, 5 to 7 parts of chitosan, 2 to 3 parts of molecular sieves, 12 to 15 parts of yellow cinnamon leaf, 2 to 3 parts of rhizoma gastrodiae, 2 to 3 parts of mint, 2 to 3 parts of radix angelicae pubescentis and 4 to 5 parts of auxiliary agents. The montmorillonite/isotactic polypropylene/polylactic acid composite sound absorbing cotton has the advantages that the montmorillonite, the isotactic polypropylene and the polylactic acid are compounded for preparing the sound absorbing cotton by the melt blowing method, the production process is simple, the raw materials are easy to obtain, the cost is low, and the prepared product has the advantages that the air permeability and the oxygen permeability are good, the tensile strength and the extension degree are high, the sound absorbing effect is obvious, and the like.
Owner:芜湖跃飞新型吸音材料股份有限公司

Leather cup rubber for laundry machine and preparation method thereof

The invention discloses leather cup rubber for a laundry machine. The leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of chlorosulfonated polyethylene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorine rubber, 3-5 parts of natural rubber, 20-30 parts of high abrasion furnace black N330, 10-15 parts of modified white carbon black, 3-4 parts of zirconia, 8-10 parts of modified wood ash, 4-6 parts of attapulgite, 4-6 parts of meerschaum, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of stearic acid, 0.5-1 part of isocyanate, 0.2-0.4 part of accelerant DM, 0.3-0.6 part of accelerant BZ, 1-2 parts of stearic acid, 2-4 parts of zinc oxide, 0.2-0.4 part of ferrocene, 1-2 parts of polyethylene wax, 1-2 parts of antioxidant DSTP, 1-2 parts of anti-aging agent NBC, 2-3 parts of gamma-methacryloxypropyl trimethoxysilane and 16-18 parts of triethyl citrate. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber can be used for preparing various packing materials.
Owner:WUHU HENGKUN AUTO PARTS

Irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin cable material for photovoltaic cables

The invention provides an irradiation crosslinking low-smoke halogen-free flame-retardant polyolefin cable material for photovoltaic cables. The cable material is prepared from the following raw materials in parts by weight: 40-50 parts of polyethylene (PE), 30-40 parts of polyvinyl chloride resin, 20-30 parts of CSM2305, 10-12 parts of ethylene-acrylate copolymer, 10-15 parts of epichlorohydrin rubber T3100, 5-10 parts of epoxidized soybean oil, 2-3 parts of carbonyl iron powder, 10-12 parts of high abrasion carbon black N330, 5-10 parts of light calcium carbonate, 1-2 parts of zinc oxide, 5-10 parts of wollastonite powder, 4-5 parts of vermiculite, 1-2 parts of polytetrafluoroethylene micro powder, 1-2 parts of graphite, 1-2 parts of nano boron carbide, 2-3 parts of ferric oxide, 0.1-0.2 part of UV-O, 0.1-0.2 part of UV-53, 0.1-0.2 part of flame retardant TBC, 10-12 parts of aluminium hypophosphite, 5-8 parts of decabromodiphenyl ether, 8-10 parts of dioctyl terephthalate, 6-8 parts of trioctyl trimellitate, 8-10 parts of triethyl citrate, 1-2 parts of calcium stearate, 0.2-0.4 part of stearic acid, 0.1-0.2 part of oxidized polyethlene wax, 0.2-0.3 part of ethylene bis stearamide, 0.1-0.2 part of DCP, and 12-15 parts of modified filler. The cable material has the characteristics of high flame retardance, high ultraviolet resistance and high ageing resistance, and meanwhile, has a good mechanical property, and is environment-friendly.
Owner:温州市粤来电子加速器应用有限公司

High-temperature oil resistant nitrile rubber gasket and preparation method thereof

The invention discloses a high-temperature oil resistant nitrile rubber gasket, comprising the following ingredients in parts by weight: 35-145 parts of nitrile rubber N411, 30-35 parts of active chloride type acrylic rubber, 10-15 parts of SG-1 type polyvinyl chloride, 2-5 parts of triethyl citrate, 3-5 parts of epoxy butyl oleate, and 2-5 parts of n-butyl methacrylate. The nitrile rubber gasket disclosed by the invention has excellent oil resistance and solvent resistance, also has excellent compressibility and rebound resilience and weak permanent deformation, does not soften and not decompose at high temperature, does not harden and not crack at low temperature, has excellent corrosion property, can work for a long time in mediums of acid, alkali, oil and the like, has small change in volume and rigidity and can adhered on metal surfaces, and has the following advantages of low friction coefficient, excellent wearing resistance, flexibility of being combined with a seal surface, excellent weather aging and ozone aging resistance, endurance, and the like.
Owner:ANHUI RONGDA VALVE

Remote fluorescent powder performance test device and test method

The invention discloses a remote fluorescent powder performance test device and a test method, and relates to fluorescent powder. The remote fluorescent powder performance test device is provided with an integration ball, a cosine collector, a blue light LED (light emitting diode) source, a light reflection cup, a fluorescent powder sheet / silica gel sheet, a TEC (triethyl citrate) temperature control clamp, a constant-current source, a spectrometer, a computer and a base, wherein the integration ball is fixed on the base and is provided with a light inlet and a light outlet; the cosine collector is connected with the spectrometer through an optical fiber at the light outlet and is used for collecting incident light; the output end of the spectrometer is connected with the computer and is used for spectrum collection and data analysis; the blue light LED source is connected with the constant-current source, serves as an exciting light source and is fixed on the TEC temperature control clamp, so that the stability of the light source is guaranteed through temperature control; the light reflection cup is fixed on the blue light LED source and achieves a light focusing effect; the fluorescent powder sheet / silica gel sheet is attached to the light reflection cup; the blue light LED source excites fluorescent powder to generate yellow light, and the yellow light and penetrating blue light are blended to synthesize white light.
Owner:XIAMEN UNIV

Telomerase delivery by biodegradable Nanoparticle

A therapeutic compound consisting of human telomerase, its catalytic subunit hTert, or a known variant of either, and a biodegradable nanoparticle carrier, which can be administered to cells in a cell culture or in a living animal, is provided herein. The therapeutic compound is envisioned as a method for treating a wide variety of age-related diseases such as idiopathic pulmonary fibrosis, aplastic anemia, dyskeratosis congenita, arteriosclerosis, macular degeneration, osteoporosis, Alzheimer's, diabetes type 2, and any disease that correlates with telomere shortening and may be corrected or ameliorated by lengthening telomeres. The therapeutic compound is also envisioned as method for potentially treating more generic problems of human aging. The nanoparticle carrier is comprised of certain biodegradable biocompatible polymers such as poly(lactide-co-glycolide), poly(lactic acid), poly(alkylene glycol), polybutylcyanoacrylate, poly(methylmethacrylate-co-methacrylic acid), poly-allylamine, polyanhydride, polyhydroxybutyric acid, polycaprolactone, lactide-caprolactone copolymers, polyhydroxybutyrate, polyalkylcyanoacrylates, polyanhydrides, polyorthoester or a combination thereof. The nanoparticle may incorporate a targeting moiety to direct the nanoparticle to a particular tissue type or a location within a cell. The nanoparticle may incorporate a plasticizer to facilitate sustained release of telomerase such as L-tartaric acid dimethyl ester, triethyl citrate, or glyceryl triacetate. A nanoparticle of the present invention can further contain a polymer that affects the charge or lipophilicity or hydrophilicity of the particle. Any biocompatible hydrophilic polymer can be used for this purpose, including but not limited to, poly(vinyl alcohol).
Owner:SARAD MATTHEW

Capacitor film with metallocene line-shaped low-density polyethylene resin as base body and preparation method thereof

The invention discloses a capacitor film with metallocene line-shaped low-density polyethylene resin as a base body and a preparation method thereof. The capacitor film is prepared from the following raw materials in parts by weight: 45-55 parts of metallocene line-shaped low-density polyethylene resin, 30-35 parts of LDPE (low-density polyethylene), 10-15 parts of homo-polypropylene, 3-5 parts of epoxy flaxseed oil, 2-3 parts of polyving akohol, 1-2 parts of calmogastrin, 1-2 parts of polyisobutene, 8-12 parts of diatomite, 1-2 parts of ferrocene, 0.8-1.2 parts of poly-4-methyl-1-amylene, 0.1-0.3 parts of polytetrafluoroethene, 9-11 parts of blanc fix, 0.6-0.8 part of antioxygen 1010, 0.3-0.5 part of triethyl acetyl citrate, 0.5-0.7 parts of fumarat, 3-5 parts of calcium stearate, 1.5-2.5 parts of N-2(amino ethyl)-3-ammonia propyl trimethoxy silane, and 1.4-1.8 parts of modified tree ash. The metallocene line-shaped low-density polyethylene resin serving as a primary raw material; the low-density polyethylene resin serving an auxiliary raw material and a plurality of auxiliary material additives are blended, extruded and subjected to film blowing, shaping and cuting to prepare the capacitor film. The capacitor film is simple in preparation method; and the diatomite, the blanc fixe and the modified tree ash are added to the raw materials at the same time. Therefore, the barrier property and the gas tightness of the film are increased; and the capacitor film has good resistance to pressure and shock resistance, and has the characteristics of high heat sealing strength and good heat sealing property at the same time.
Owner:TONGLING YIHENGDA ELECTRONICS

Toughened and reinforced polylactic acid nano composite material and preparation method thereof

InactiveCN101037532AGood adhesionIntercalation effect improved significantlyALUMINUM STEARATESFunction group
The invention relates to method of preparing secondary functionalization organic modified montmorillonite (TFC), toughening and reinforcement biodegradable polylactic acid nano composite material using the organic montmorillonite and preparing method thereof. The novel double-function group organic modified montmorillonite (TFC) enhances adhesion force between montmorillonite and polymer molecule and obviously increases property of the composite material. The toughening and reinforcement biodegradable polylactic acid nano composite material is prepared by using polylactic acid as main raw material, and adding certain poly(epsilon-caprolactone) and lactic acid-epsilon-caprolactone copolymer; plasticizer selects acetyl tri-n-butyl citrate, tri-n-butyl citrate, triethyl citrate, dioctyl phthalate, and dibutylphthalate; lubricant selects aluminum stearate and calcium stearate; heat stabilizer selects maleic anhydride and epoxy soybean oil (EOS); and intensifier selects TFC montmorillonite (MMT). The prepared composite material possesses high strength and good toughness, and is hopeful of replacing traditional non-degradable material to be applied in field such as packaging, medical, and engineering for solving environment problems generated by white pollution.
Owner:SHANGHAI UNIV

High-strength tear-resistant rubber sealing gasket and preparation method thereof

The invention discloses a high-strength tear-resistant rubber sealing gasket and a preparation method thereof. The high-strength tear-resistant rubber sealing gasket is prepared from raw materials, namely chlorosulfonated polyethylene rubber, silicon rubber, bisphenol A type polycarbonate, cashew nut shell oil modified phenolic resin, hexamethylenetetramine, dicumyl peroxide, spray carbon black, modified nano ceramics, silicon-magnesium-calcium crystal whiskers, nanometer wollastonite, zinc methacrylate, magnesium oxide, stearic acid, vinyl silicone oil, chlorinated paraffin 4-7, triethyl citrate and the like. According to the high-strength tear-resistant rubber sealing gasket and the preparation method thereof disclosed by the invention, the organic composite modification is carried out by adopting multiple nano ceramic powder, namely nanometer aluminum nitride, nanometer titanium carbide and nanometer zirconium boride, so that the compatibility of the nano ceramic powder and rubber can be enhanced; the modified nano ceramic powder, the silicon-magnesium-calcium crystal whiskers, the nanometer wollastonite and the like are filled in a modified rubber material together to prepare the sealing gasket, so that the mechanical strength, impact resistance and especially tear resistance of the sealing gasket can be remarkably improved; the heat resistance, abrasion resistance and the like of the rubber can also be improved.
Owner:WUHU YINHONG HYDRAULIC COMPONENTS

Pliable tough cold-resistant anti-aging modified acrylate rubber cable material

The invention relates to a cable material, and specifically relates to a pliable tough cold-resistant anti-aging modified acrylate rubber cable material. The cable material comprises the following raw materials in parts by weight: 25-30 parts of acrylate rubber, 15-20 parts of epichlorohydrin rubber, 12-15 parts of fluororubber, 23-26 parts of precipitation-process white carbon black, 18-20 parts of polystyrene, 15-18 parts of polyvinyl chloride, 12-15 parts of wollastonite powder, 2-3 parts of anti-aging agnet KY-405, 1-2 parts of anti-aging agent MB, 1-2 parts of anti-oxidant 1035, 3-4 parts of magnesium oxide, 4-5 parts of stearic acid, 1-2 parts of promoter PZ, 5-7 parts of acetyl triethyl citrate, 5-6 parts of dibutyl maleate, 30-34 parts of spraying carbon black, 4-5 parts of engine oil, 2-3 parts of sulphur, 2-3 parts of zinc oxide and 4-5 parts of an auxiliary agent. The cable material combines the advantages of acrylate rubber, epichlorohydrin rubber, fluororubber, polystyrene, polyvinyl chloride and the like, so that the properties of conventional acrylate rubber cable materials are improved; and the cable material provided by the invention has good mechanical properties, is pliable, tough, wear-resistant, low temperature resistant, anti-aging and long in service life, is capable of being adaptive to specific usage environment conditions, and has wide market application prospect.
Owner:东莞市胜牌电线电缆有限公司

PET (polyethylene glycol terephthalate) fiber/mineral cotton fiber composite sound absorbing cotton and preparation method of PET fiber/mineral cotton fiber composite sound absorbing cotton

The invention discloses PET (polyethylene glycol terephthalate) fiber / mineral cotton fiber composite sound absorbing cotton, which is prepared from the following ingredients in pars by weight: 70 to 80 parts of PET fibers, 40 to 50 parts of mineral cotton fibers, 10 to 15 parts of emulsifying agents OP-7, 5 to 10 parts of peregal O-20, 80 to 100 parts of PP (propene polymer), 30 to 40 parts of EPDM (ethylene propylene diene monomer), 15 to 20 parts of calcined clay, 10 to 15 parts of modified kieselguhr, 2 to 3 parts of stearic acid, 5 to 8 parts of triethyl citrate, 4 to 6 parts of pentabromophenyl ethane, 2 to 3 parts of glycerin monostearate, 1 to 2 parts of isopropyl distearyl oxyaluminate, 2 to 3 parts of zinc stearate, 1 to 2 parts of calcium stearate, 0.5 to 1.5 parts of anti-aging agents TPPD and 1 to 2 parts of antioxidants 1035. The sound absorbing cotton prepared by the invention has the advantages that the appearance evenness is good, the thickness is uniform, the hand feeling is soft, the product bonding degree is good, the tensile performance is high, the sound absorbing performance is excellent, the flame retardant effect is good, and the like.
Owner:芜湖跃飞新型吸音材料股份有限公司

High-strength wear-resisting nitrile butadiene rubber cable material

The invention relates to a cable material, and in particular relates to a high-strength wear-resisting nitrile butadiene rubber cable material. The cable material is prepared from the following raw materials in parts by weight: 35-40 parts of nitrile butadiene rubber (3304), 1-2 parts of sulphur, 4-5 parts of polyacrylonitrile, 6-8 parts of ABS (Acrylonitrile Butadiene Styrene) high rubber powder, 30-34 parts of metallocene linear low-density polyethylene, 12-14 parts of butadiene rubber, 3-4 parts of stearic acid, 1-2 parts of oxalic acid, 25-28 parts of N330 carbon black, 5-8 parts of dioctyl adipate, 5-7 parts of triethyl citrate, 6-8 parts of zinc oxide, 2-4 parts of magnesium oxide, 28-32 parts of N550 carbon black, 1-2 parts of accelerant DM and 4-5 parts of auxiliary. According to the cable material, the advantages of the raw materials of nitrile butadiene rubber, butadiene rubber, ABS high rubber powder, metallocene linear low-density polyethylene and the like are combined, the properties of the conventional nitrile butadiene rubber cable material are improved, the cable material is enabled to have the advantages of high strength, good tension property, external impact resistance, wear resistance and the like, can meet the application requirements in special situations, is harmless to environment and human bodies, and is wide in application prospect.
Owner:安徽文峰电子科技集团有限公司

Rubber composition of nitrile rubber and epoxidized natural rubber

The invention discloses a rubber composition of nitrile rubber and epoxidized natural rubber. The rubber composition is prepared from nitrile rubber 3345, epoxidized natural rubber, antioxidant RD, antioxidant MB, stearic acid, sulfur powder, microcrystalline wax, zinc oxide, processing aid WB212, white carbon black, carbon black N330, triethyl citrate, promoter TMTD, promoter CZ, promoter DM, nanometer barite, light calcium carbonate, chalk, high styrene resin, benzoic acid, etc. The rubber composition provided in the invention has low permanent compression deformation, good elasticity and high hardness; the composition is used for fabricating rubber products like sealing rings, having the advantages of conservation of cost and excellent performance.
Owner:CGP WUHU SEALING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products