7 results about "Sorbitan Monopalmitate" patented technology

The invention discloses an anti-fog master batch for a polypropylene film. The anti-fog master batch is prepared from the following raw material components: polypropylene, maleic anhydride grafted polypropylene, sorbitan monopalmitate and polyimide. Secondly, the invention also discloses an antifogging polypropylene film, which is prepared by the following steps: preparing an antifogging master batch from polypropylene, maleic anhydride grafted polypropylene, polyimide and sorbitan monopalmitate; and uniformly mixing the anti-fog master batch with polypropylene, extruding the mixture into a strip-shaped or tubular film by adopting a screw extruder, and rolling and pulling the film to form the required width and thickness, thereby obtaining the anti-fog polypropylene film. According to the anti-fog polypropylene film, polyimide, maleic anhydride grafted polypropylene and sorbitan monopalmitate cooperate with one another and serve as a whole to jointly improve the hydrophilic performance of the anti-fog polypropylene film, so that the anti-fog performance of the anti-fog polypropylene film is greatly improved, and the water contact angle of the anti-fog polypropylene film can be lower than 10 degrees.

The invention belongs to the technical field of imbibition oil extraction, and provides a water-based nano-emulsion imbibition oil displacement agent and a preparation method thereof. According to the preparation method of the water-based nano-emulsion imbibition oil displacement agent, polyoxyethylene lauryl ether, sorbitan monopalmitate, mahogany petroleum sulfonate, an oily solvent, nano silicon oxide and water are uniformly mixed through a phase transition component method to prepare the water-based nano-emulsion imbibition oil displacement agent. The preparation method of the water-based nano-emulsion imbibition oil-displacing agent can effectively improve the crude oil recovery rate of unconventional oil reservoirs.

The present invention provides a cleaning agent, which comprises: a first component, which comprises at least one of sorbitan monolaurate and sorbitan monopalmitate, and coconut oil fatty acid diethanolamide, and a second component, which comprises at least one of sorbitan monolaurate and sorbitan monopalmitate, and coconut oil fatty acid diethanolamide; the second component comprises at least one of sodium dodecyl diphenyl ether disulfonate, sodium dodecyl benzene sulfonate and lauryl sodium sulfate; and the third component comprises at least one of benzotriazole and imidazoline. The invention further provides the electronic equipment, the electronic equipment comprises the metal shell, and the metal shell is treated by the cleaning agent.

Provided is an emulsifier composition containing: (A) a polyoxyalkylene alkyl ether represented by formula (1); (B) one or more sorbitan mono-fatty acid esters selected from the group consisting of sorbitan monolaurate, sorbitan monomyristate, sorbitan monopalmitate, sorbitan monostearate, and sorbitan monooleate; and (C) one or more polyhydric alcohols selected from the group consisting of 1,2-alkanediols having 6-18 carbon atoms and monoalkyl glyceryl ethers having a hydrocarbon group having 6-8 carbon atoms. In formula (1), R1 represents an alkyl group having 10-18 carbon atoms, and the average values of n and m independently represent a number of 0-10. Provided that, at least one of n and m is not 0.

The invention relates to a pre-column derivatization kit containing 2, 4-dinitrofluorobenzene and application of the pre-column derivatization kit, and belongs to the technical field of amino acid detection. The kit comprises an amino acid releasing agent, the amino acid releasing agent comprises a sulfosalicylic acid solution, an EDTA (Ethylene Diamine Tetraacetic Acid) solution and ethanol, the concentration of the sulfosalicylic acid solution is 3-8wt%, and the concentration of the EDTA solution is 0.5-1.5 wt%; the derivatization reagent comprises a sodium carbonate-sodium bicarbonate buffer solution, sorbitan monopalmitate and a 2, 4-dinitrofluorobenzene solution, the pH range of the sodium carbonate-sodium bicarbonate buffer solution is 8.0-10.0, the concentration of the 2, 4-dinitrofluorobenzene solution is 0.5-2wt%, and the solvent is acetonitrile; the pH (Potential of Hydrogen) of the phosphate buffer solution is 6.5 to 7.5. According to the kit, the reagent stability is guaranteed, the operation steps can be reduced, the reaction time is shortened, the derivatization effect on amino acid is also obviously improved, and the accuracy of amino acid detection through an HPLC method can be improved.

To provide a method for delivering a compound to the skin of a subject.SOLUTION: A method for delivering a compound to the skin of a subject includes topically applying an effective dose of one or more biphasic lipid vesicles to the skin of the subject, where the biphasic lipid vesicle contains one or more infiltration accelerators including (i) the compound and (ii) one or more nonionic detergents having approximately 10 or less of hydrophilic-lipophilic balance (HLB), and the one or more nonionic detergents having approximately 10 or less of HLB contains dimonomethylether oleyl ether, sorbitan monopalmitate, or polyoxyethylene (4) dilaurate.SELECTED DRAWING: Figure 1A-1