64 results about "Sorbitan tristearate" patented technology

The invention relates to a wood preservation and water repellent agent and a preparation method thereof. The wood preservation and water repellent agent comprises the following components in percentage by weight: 10-20 percent of paraffin, 5-10 percent of dry oil, 0.3-0.7 percent of medium-chain-length alcohol, 0.6-1.3 percent of fatty acid, 0.1-1.0 percent of quaternary ammonium salt, 0.1-0.5 percent of macromolecular surfactant, 1.2-2.6 percent of sorbitan tristearate, 2.7-5.5 percent of polyoxyethylene sorbitan tristearate and 68-75 percent of water. According to a paraffin and plant dry oil water-based emulsion, the dimension stability of wood in a damp environment is remarkably increased and the waterproof performance is prolonged.

A well treatment microemulsion includes an oil external phase, an internal aqueous phase and a hydrophilic surfactant. The surfactant has a hydrophile lipophile balance of between 8-18. The oil external phase may include d-Limonene, xylenes, light mineral oil, or kerosene. The surfactant is configured to emulsify the water of the internal aqueous phase into the oil of the external (continuous) phase. The surfactant may include polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan tristearate, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monolaurate or mixtures therebetween. The use of hydrophilic surfactants to emulsify an internal aqueous phase within an oil external microemulsion produces unexpected and beneficial results.

The invention relates to a natural antibacterial and deodorizing finishing agent for non-woven fabrics. The formula of the natural antibacterial and deodorizing finishing agent comprises the following components in percentage by weight: 5%-20% of polyoxyethylene sorbitan tristearate, 1%-10% of ester-base quaternary ammonium salt, 5%-20% of a natural antibacterial composition, 5%-9% of polyethylene glycol glyceryl ether, 3%-8% of a fragrant slow-released system and the balance of deionized water, wherein the natural antibacterial composition comprises chitosan, aloe oil, chitin, catechinic acid, tea polyphenol, tea-seed oil, tea saponin, a grape seed extract, citric acid, amino acid chelate, an amino acid derivative and an emulsifying agent. The natural antibacterial and deodorizing finishing agent has no stimulation to the skin of the human body, is capable of inhibiting the invasion and breeding of bacteria and high in ammonia absorptivity and further has outstanding antibacterial and deodorization effects. The natural antibacterial and deodorizing finishing agent has the characteristics that fragrance is uniformly released, the fragrance preservation time is long, and the added value of the product is high.

The invention relates to an energy-saving and pollution-relieving liquid coal nano combustion improver and a preparation method and a preparation device thereof, and belongs to the field of combusting coal combustion improving additives. The energy-saving and pollution-relieving liquid coal nano combustion improver comprises the following components in percentage by mass: 15 to 23 percent of emulsifier which consists of polyoxyethylenated castor oil and sorbitan tristearate, 18 to 27 percent of penetrating agent which consists of sodium butylnaphthalene sulfonate and sodium diethylhexyl sulfosuccinate, 12 to 20 percent of castor oil serving as an oxidant, 20 to 47 percent of activator which consists of polyvinyl alcohol and beta-methyl acrylic acid and 8 to 10 percent of nano material which consists of TiO2, ZnO, MgO and Fe2O3. When the energy-saving and pollution-relieving liquid coal nano combustion improver is used, a special coal combustion improver spray atomizing system is used to uniformly spray the improver onto coal according to a ratio of 0.04 to 0.06 percent. The coal nano combustion improver prepared by the invention has the advantages of stable performance, convenience for use, as well as capability of improving the combustion efficiency of coal, reasonably improving combustion environment, capturing sulfur, removing nitrates, saving energy and reducing emission.

The invention discloses an improved method for measuring the fatty acid composition of sorbitan monostearate. The method comprises: taking a sample and placing the sample into a flask; adding a potassium hydroxide methanol solution, carrying out heating refluxing, and carrying out cooling; adding a methanol solution, carrying out heating refluxing, and carrying out cooling; adding normal hexane, and carrying out heating refluxing continuously, and carrying out cooling; adding a saturated sodium chloride solution, carrying out shaking uniformly, carrying out standing for layering, and taking supernatant fluid and carrying out anhydrous sodium sulfate drying; carrying out testing based on a gas chromatographic method; with a capillary column with polyethylene glycol as stationary liquid as achromatographic column, taking a proper amount of methyl palmitate and methyl stearate reference substances respectively and carrying out dilution to make a solution containing 1mg of methyl palmitate and 1mg of methyl stearate respectively per 1ml under conditions of keeping the feeding inlet temperature of 240 DEG C and the detector temperature of 280 DEG C; injecting the solution into a gas chromatograph and recording a chromatogram map with the separation degrees of all chromatographic peaks meeting requirements; and taking the supernatant fluid and injecting the fluid into the gas chromatograph, recording a chromatogram map, and carrying out calculation with a peak area based on an area normalization method. With the disclosed method, the error rate is low.

The invention relates to a sertaconazole nitrate vaginal expansive suppository as well as a preparation method and a detection method thereof. The expansive suppository contains a medicated matrix formed by sertaconazole nitrate and a matrix, and an expansive carrier, wherein the medicated matrix further contains glycerol ester of rosin therein, to relieve irritation of the expansive suppository on vagina; meanwhile, the sertaconazole nitrate is prepared into a micro-capsule with cross-esterified castor oil polyglyceryl ester, pullulan and chitosan, thus enhancing the stability of the expansive suppository; in addition, the expansive suppository has the characteristics of rapid speed of taking effect and durable pharmaceutical effect; sorbitan tristearate, sodium pyrosulfite and sodium starch phosphate are sequentially added in the medicated matrix, so that the prepared expansive suppository is uniformly dispersed in medicines, stable in nature, difficult to deform, less in possibility of rancidification and difficult to melt; in addition, by virtue of adopting seven unique leading technologies, the sertaconazole nitrate vaginal expansive suppository disclosed by the invention has the beneficial effects of preventing outflow of medicine liquid, avoiding secondary infection and the like.

The invention discloses an environment-friendly printing ink cleaning agent. The environment-friendly printing ink cleaning agent is prepared from castor oil polyoxyethylene ether, benzotriazole, diisobutyl phosphite, sodium palmate, 2,6-ditert-butyl-4-methylphenol, sorbitan tristearate, hydraulic oil, 2,4-dioxolane, bioctyl sulfonated sodium succinate, deodorized kerosene, stannic chloride, hydroxyethyl nethyl cellulose, propyl alcohol, hydrogen peroxide, a surfactant, a cleaning auxiliary, rosin and purified water. According to the environment-friendly printing ink cleaning agent, the production technology process is simplified, and through preparation of the raw materials, emission of hydrocarbon harmful gas in the production process can be reduced, the cleaning effect of the product can be improved, and the product smell can be reduced.

The invention discloses a method for producing a long-acting drip agent for an agricultural polyethylene film. The method comprises the following five steps: preparing materials, wherein the first group of materials comprise polyethylene glycols, stearic acid and a p-toluenesulfonic acid for preparing a catalyst, the second group of materials comprise hydrogenated tallow alkyls and ethylene oxides for preparing a main agent, and the third group of materials comprise sorbitan tristearate and glyceryl monostearate for preparing a synergic agent; after the catalyst, the main agent and the synergic agent are respectively prepared by using the raw materials, adding 420-480 parts by weight of main agent, 1300-1400 parts by weight of synergic agent and 120-160 parts by weight of catalyst into a reaction kettle; carrying out stirring and synthetic reaction for 1 hour at the temperature of 105 DEG C; and carrying out vacuum drying, emptying, and slicing or granulating so as to obtain the long-acting drip agent. The drip agent is used as an addition agent for producing the agricultural polyethylene film, and has the advantages of small hydrophilic-lipophilic balance (HLB) value, appropriatedrip agent migration rate and better primary effectiveness and durability; the effectiveness-persisting period of the drip agent can reach 5-6 months; and through adjusting the proportions of partialraw materials, the long-acting drip agent can be respectively used for producing agricultural polyethylene films suitable for the southern or northern climate.