492 results about "Polyoxyethylene lauryl ether" patented technology

The allergen inhibitor of this invention comprises at least one compound selected from the group consisting of an aromatic hydroxy compound, an alkali metal carbonate, alum, lauryl benzene sulfonate, lauryl sulfate, polyoxyethylene lauryl ether sulfate, and a divalent or more sulfate having either or both of a polyoxyethylene chain and a polyethylene chain in the molecule thereof.

The invention provides a wax inhibitor added during fracturing construction. The wax inhibitor is prepared from the following raw materials in percentage by weight: 10%-20% of sodium stearate, 10%-20%of peregal O-25, 10%-15% of fatty alcohol polyoxyethylene lauryl ether sulfate sodium AES, 5%-10% of sodium dodecyl benzene sulfonate ABS, 0.5%-1% of ethylenediamine traacetic acid, 1%-2% of rosin powder, and the balance of quartz sand. Meanwhile, the invention also provides a preparation method and application of the wax inhibitor. The wax inhibitor provided by the invention does not need separate construction, is added during fracturing construction and can penetrate through the distal end of stratum, so that the action range of the wax inhibitor in the stratum is enlarged, the effective time is long, and the wax inhibitor can be slowly released in the stratum at 30 DEG C for about 2 years; wax inhibition is carried out before crude oil production, so that the source of wax production is directly cut off, and the generation of wax is fundamentally prevented; construction is convenient and construction cost is reduced.

The invention discloses paint for electrical equipment. The paint is prepared from the following raw materials in parts by weight: 30-40 parts of polyvinylpyrrolidone, 25-28 parts of vinyl trimethoxy silane, 18-22 parts of silicone oil emulsion, 15-20 parts of polyoxyethylene lauryl ether, 12-14 parts of phthalate, 8-10 parts of silicon carbide, 6-8 parts of lithium-based bentonite, 2-3 parts of nanosize silica and 1-2 parts of nano titanium dioxide. The invention further discloses a preparation process of the paint. The paint can be used for effectively preventing corrosion of acid-base slats, prolonging the service life of a cable material and reducing occurrence of potential safety hazards.

The invention belongs to the field of a circuit board cleaning agent, and discloses a water-based environment-friendly cleaning agent for circuit boards. The cleaning agent is prepared from the following raw materials in parts by weight: 1-2 parts of potassium polyoxyethylene lauryl ether phosphate, 1-2 parts of sodium sulfate, 1-2 parts of tetrafluoropropanol, 1-2 parts of sodium citrate, 2-3 parts of benzotriazole, 3-5 parts of isobutanol, 3-5 parts of triethanolamine, 3-5 parts of polyoxyethylene ether, 4-6 parts of diethylene glycol monobutyl ether, 10-15 parts of coco fatty acid diethanol amide and 30-40 parts of de-ionized water. The cleaning agent disclosed by the invention has no problem of stratification, and is good in stability and free from corrosion to metal; and in addition, the cleaning agent is good in compound removal effect.

Belonging to the technical field of cleaning agents, the invention in particular relates to a high efficiency oil stain removal cleaning agent. The cleaning agent comprises the following components by mass: 6.3-9.6 parts of sodium dodecyl benzene sulfonate, 3.6-5.3 parts of fatty alcohol polyoxyethylene ether sulfate, 1.5-2.4 parts of polyoxyethylene lauryl ether, 2.7-3.2 parts of anhydrous sodium metasilicate, 3.5-4.2 parts of bentonite, 2.4-3.1 parts of sodium carbonate, 0.4-0.7 part of an anti-redeposition agent, 1.5-1.8 parts of a bleaching agent, and 55-68 parts of water. The oil stain cleaning agent provided by the invention cannot cause damage to an oil stain adhered surface. At the same time, the oil stain cleaning agent provided by the invention has good cleaning effect, and the preparation method is simple and is easy for industrialized production.

The invention provides a freeze drying preparation method for ultra-fine tungsten-doped yttrium oxide composite powder. According to the freeze drying preparation method, a surface-active agent polyethylene glycol (PEG), polyvinylpyrrolidone (PVP) or polyoxyethylene lauryl ether are added on the basis of freeze drying for in-situ preparing of about 10 nm of ultra-fine nanometer W-Y2O3 composite powder. The freeze drying preparation method comprises the steps that ammonium meta-tungstate, yttrium nitrate hexahydrate and a surface-active agent are dissolved into water and are fully dispersed anddissolved through ultrasonic treatment; then a mixture is placed in a refrigerator to be pre-frozen for a period of time; after being pre-frozen, the mixture is put into a freeze dryer to be subjected to freeze drying; a freeze-dried loose structure is ground and calcined in air so as to remove the surface-active agent, and thus WO3-Y2O3 composite powder is obtained; and finally, two-step reduction is conducted through hydrogen, and thus the ultra-fine tungsten-doped yttrium oxide composite powder is obtained. The powder, with the surface-active agent being added, prepared through the freezedrying method is small in particle aggregation, the average grain size reaches about 10 nm, granularity distribution of grains is extremely narrow, and second-phase Y2O3 is distributed quite evenly.

The invention discloses a kit for measuring content of total bile acid of blood serum and a use method of the kit, relates to the field of biochemical detection and aims to provide a high-stability, high-accuracy and non-interfering kit for measuring the content of total bile acid of blood serum and a use method of the kit. The kit comprises a reagent 1 and a reagent 2, wherein the reagent 1 comprises a GOOD'S buffer solution, thionicotinamide adenine dinucleotide, polyoxyethylene ether of nonylphenol, polyoxyethylene lauryl ether, ADP.2Na, EDTA (ethylene diamine tetraacetic acid), bovine serum albumin, mannitol and a preservative (proclin series); the reagent 2 comprises a GOOD'S buffer solution, 3 alpha-hydroxysteroid dehydrogenase, reduced coenzyme and the like. Due to addition of ethylene glycol, sucrose and multiple compound stabilizers, the stability of the reagents is improved; due to addition of EDTA, the interference effect of metal ions can be reduced and the test result accuracy can be improved.

The invention discloses a grafting survival promoter. A preparation method of the grafting survival promoter comprises the following steps of dissolving gibberellin or auxin in 75-percent ethyl alcohol to obtain a first moxture, diluting the mixture for 30 to 50 times by using water, afterwards, adding glucose or fructose, 8-hydroxyquinoline or thiabendazole and polyoxyethylene lauryl ether into an obtained second mixture respectively, and finally, regulating the pH (potential of Hydrogen) of a system to be 3 to 5, so that the grafting survival promoter is obtained. The invention also discloses application of the grafting survival promoter to the grafting of a plant. According to the grafting survival promoter and the application of the grafting survival promoter, through adding a growth promoter, a disinfectant, a surfactant and a nutrient substance, a scion and a stock are enabled to heal as quickly as possible in a germfree condition; the survival rate of the grafted plant is improved. The grafting survival promoter has the advantages that raw materials are easily obtained; the cost is low; the preparation method is simple.