45 results about "Nitropropane" patented technology

Apparatus and processes are disclosed for milling copper adjacent to organic low-k dielectric on a substrate by directing a charged-particle beam at a portion of the copper and exposing the copper to a precursor sufficient to enhance removal of the copper relative to removal of the dielectric, wherein the precursor contains an oxidizing agent, has a high sticking coefficient and a long residence time on the copper, contains atoms of at least one of carbon and silicon in amount sufficient to stop oxidation of the dielectric, and contains no atoms of chlorine, bromine or iodine. In one embodiment, the precursor comprises at least one of the group consisting of NitroEthanol, NitroEthane, NitroPropane, NitroMethane, compounds based on silazane such as HexaMethylCycloTriSilazane, and compounds based on siloxane such as Octa-Methyl-Cyclo-Tetra-Siloxane. Products of the processes are also disclosed.

The invention discloses a preparation method of an impregnation liquid for refreshing wet tissue. The refreshing wet tissue is obtained by: proportionally mixing ethyl alcohol, menthol, menthyl lactate, PEG-40 castor oil, polyaminopropyl biguanide, lauryl pyridinium chloride, 2-bromo-2-nitropropane-1,3-diol and caffeine to obtain the impregnation liquid of wet tissue and padding tissue nonwoven with the impregnation liquid. Compared with traditional wet tissues, the wet tissue produced using the impregnation liquid of the invention has health functions of refreshing and skin moisturizing, can be used daily to provide fatigue relief and meets the requirements of modern high-quality market.

The invention provides a preparation method of a 2-nitro-2-methyl-1-propanol crystal. According to the method, 2-nitro-2-methyl-1-propanol is prepared through a reaction between 2-nitropropane and paraformaldehyde, the residual formaldehyde is removed with an acidic solid catalyst, and the product is subjected to secondary purification with cyclohexane so as to obtain the 2-nitro-2-methyl-1-propanol crystal, wherein the purity is up to 99.8-99.99%, and the residual formaldehyde is 5-200 ppm; and the conversion rate of the reaction based on 2-nitropropane can be 98-99.7%, and the final yield after the secondary purification is 90-97%.

The invention relates to a lithium ion battery and a lithium ion battery electrolyte for ultralow temperature discharge. a lithium ion battery with the advantages of ultralow temperature discharge, stable performances and good cycle performance is not available at present. The invention is characterized in that the lithium ion battery electrolyte comprises lithium hexafluorophosphate, triethoxyboron, a low-melting-point additive and a quaternary solvent, wherein nitroethane and / or nitropropane is selected as the low-melting-point additive; the quaternary solvent consists of ethylene carbonate, DMC (dimethyl carbonate), ethyl methyl carbonate and dimethoxyethane; and the dimethoxyethane accounts for 0.8-10% of the total weight of the quaternary solvent. In the lithium ion battery electrolyte, the concentration of lithium hexafluorophosphate is 0.8-1.3mol / L, the mass percent of triethoxyboron is 0.2-8wt%, the mass percent of low-melting-point additive is 2-20wt% and the mass percent of quaternary solvent is 70-90wt%. The lithium ion battery is reasonable in structure design, can realize the ultralow temperature discharge, and has stable performances and good cycle performance.

The invention discloses a green plum extreme-moistening moisturizing facial mask and a making method thereof. The green plum extreme-moistening moisturizing facial mask consists of the following components: a green plum active extract, propylene glycol, butanediol, glycerinum, rosa damascena flower water, aloe vera leaf juice, hydrolyzed jojoba esters, phenoxyethanol, methylparaben and 2-bromine-2-nitropropane-1,3-diol mixed liquid, allantoin, chondrus crispus powder, an acrylic acid (ester) type / C10-30 alkanol acrylic ester cross-linking polymer, triethanolamine, EDTA (Ethylene Diamine Tetraacetic Acid) disodium, PEG-40 hydrogenated castor oil, essential oil and water. The green plum extreme-moistening moisturizing facial mask disclosed by the invention is capable of effectively and safely improving skin activity, promoting skin metabolism, promoting new skin cell generation and reducing melanin, and has remarkable effects on facial skin whitening, inflammation elimination, moisturizing and the like.

The invention relates to the technical field of nail care, and in particular discloses a nail care ointment for tumor patients. The nail care cream for tumor patients is composed of the following raw materials: alcohol moisturizer, cocoa seed butter, beet root extract, glyceryl stearate, green wattle wax, canola oil, tocopherol, sea buckthorn fruit oil, Stearic acid, ginger root extract, sunflower seed wax, bisabolol, hydrolyzed collagen, allantoin, panthenol, hyaluronic acid, 2‑bromo‑2‑nitropropane‑1,3‑diol, preservative agent and the remainder of water. The nail care ointment for tumor patients of the present invention contains natural plant ingredients, is non-irritating, easy to absorb, effectively alleviates the nail toxicity caused by the treatment of tumor patients, promotes tissue repair, relieves inflammation and pain relief, and solves the problem of nail discomfort in tumor patients. Improve the quality of life of cancer patients.

The invention discloses a preparation method of organic compounds, in particular to 1- (2,6,6- trimethyl cyclohexyl - 3- alkenyl) ethyl ketone, which adopts 4- methyl amyl- 3- alkene - 2- alkone and 1,3- piperylenes as the raw material, with the anhydrous aluminum trichloride as the catalyst, and purifying and preparing through Diels-Alder reaction in the nitryl alkane solvent; wherein, the nitrylalkane solvent is one or several combination solvents among the nitroethane, 1- nitropropanes, and 2- nitropropanes, with a mass ratio of 3 to 5 times of 4- methyl amyl- 3- alkene -2- alkone. The preparation method of organic compounds has the advantages of using nitryl alkane as solvent, distinct enhancement of product efficiency, small solvent toxicity, good solubility, high recycling percentage, easy separation and purification of products, pure product fragrance, and other characteristics.

The invention relates to a safe method for preparing nitropropane by vapor-phase nitration, which comprises the following steps: carrying out reaction in a single-channel reactor, wherein after the reaction material propane enters a preheating pipe via a flowmeter and is mixed with pumped nitric acid in a mixing pipe, the mixed materials are sent into a reaction pipe, and the mol ratio of the propane to the nitric acid is controlled at (1-8):1; the mixed materials are subjected to nitration reaction by mass transfer and heat transfer in the reaction pipe, and the products enter a separator; and the reaction products stand in the separator until the reaction products stratify, the organic phase is separated from the water phase, and the organic phase is washed and dried to obtain the product. By using the invention, the propane and the nitric acid can be directly synthesized into various nitroparaffins under the condition of no catalyst, and the process is safe and continuous. The masstransfer and heat transfer are completed in the single channel without additional heat dissipation, thereby reducing the power consumption. The invention has the advantage of simple structure and is easy to operate. The conversion rate of the propane is higher than 20%, and the selectivity of the nitropropane is higher than 80%.