8 results about "Dibutyl adipate" patented technology

The invention discloses dibutyl adipate as well as a preparation method and application thereof, preparation raw materials comprise adipic acid, n-butyl alcohol and a catalyst, and the molar ratio of the adipic acid to the n-butyl alcohol to the catalyst is 1: (3-8): (0.001-0.005). Excessive n-butyl alcohol obtained through distillation and kettle residues obtained after vacuum rectification can be directly applied to the next batch of reaction, continuous circular reaction can be achieved by supplementing a small amount of catalyst, maximum utilization of raw materials is achieved, and the production cost is reduced. Compared with the product obtained by the prior art, the content of the product obtained by simple rectification is higher, the content of dibutyl adipate in the product is 99.8% or above, the risk of trace activated carbon residue after activated carbon adsorption treatment is avoided, and the cosmetic grade product standard is met.

The application provides a preparation method of dibutyl adipate, belongs to the technical field of organic compound preparation, and can solve the problems of low catalytic efficiency, low raw material conversion rate, and the problems of the obtained product after treatment, such as the presence of catalyst residues, flocculent turbid substances in the obtained product, and the significant influence on product quality. The technical scheme comprises the following steps: taking adipic acid and monohydric alcohol as raw materials, fully reacting in a reactor filled with an organotin salt supported catalyst to obtain crude dibutyl adipate, and then performing vacuum distillation, adsorption impurity removal and rectification stripping on the crude dibutyl adipate to obtain dibutyl adipate product, wherein the monohydric alcohol is n-butanol or isobutanol. The preparation method has the advantages of high raw material conversion rate, fast reaction rate, high product yield, product purity ≥ 99.5% after refining treatment, low impurity content, and compliance with the cosmetic product standard, and can be applied to cosmetics.

The application discloses a sunscreen composition, a preparation method thereof and a sunscreen product, and relates to the field of sunscreen products, and specifically discloses a sunscreen composition containing an inorganic sunscreen agent, a modifier, wherein the modifier contains rosin acid or a derivative thereof and dibutyl adipate; in terms of mass percentage, the dibutyl adipate accounts for 5-40% in the sunscreen composition, and the rosin acid or the derivative thereof accounts for 1-15%; during preparation, ingredients except the inorganic sunscreen agent are mixed according to the formula content, and then the inorganic sunscreen agent is added under stirring conditions, and is dispersed, and the preparation is completed; the sunscreen composition of the application achieves balance in terms of sunscreen efficiency, dispersion stability, water resistance, visual whiteness and the like, and can be used for the preparation of sunscreen products.

The application belongs to the field of daily chemicals, and discloses a refreshing oil-in-water macromolecular sunscreen system, which comprises a water phase, an oil phase and an organic sunscreen agent; the water phase is provided with a first surface active agent and a water phase thickening agent; the oil phase is provided with a second surface active agent; the amount of the organic sunscreen agent is 6-10 wt%; the solvent in the oil phase is composed of a first solvent and a second solvent; the first solvent is composed of dibutyl adipate, isopropyl lauroyl sarcosinate and cocoyl octanoate / caprate; the second solvent is composed of dicaprylyl carbonate and / or isononyl isononanoate, caprylic / capric triglyceride and C12-15 alcohol benzoate; the first surface active agent is chitosan lauryl carbamate; and the water phase thickening agent is an acrylate / isodecyl vinyl cross-linked polymer and xanthan gum. In the sunscreen system, the oily solvent is preferred, the emulsifier and thickening agent of the water phase are reasonably matched, the sunscreen performance is optimized, and the formula stability is maintained.

The invention relates to a transparent sunscreen comprising a solution in which the solute is formed by a combination of five chemical solar filters in an amount of 25-40%, and the solvent is formed by a combination of oils comprising a first oil formed by dibutyl adipate in an amount of 5-15%, a second oil formed by isododecane in an amount of 40-55% and a third oil formed by dimethicone / bis-isobutyl PPG-20 crosspolymer in an amount of 5-15%, wherein the second and third oils are mixed in a ratio of 85:15 and the amount of the first oil with respect to the mixture of the second and third oils is in a ratio of 1:5.

The invention provides a preparation method of dibutyl adipate, belongs to the technical field of preparation of organic compounds, and can solve the problems that an existing preparation method of dibutyl adipate is low in catalytic efficiency and low in raw material conversion rate, an obtained product is extremely easy to have catalyst residues after post-treatment, flocculent turbid substances exist in the obtained product, and the yield of the product is low. The influence on the product quality is obvious. According to the technical scheme, the method comprises the following steps: taking adipic acid and monohydric alcohol as raw materials, fully reacting in a reactor filled with an organic tin salt supported catalyst to obtain a dibutyl adipate crude product, and then carrying out reduced pressure distillation dealcoholization, adsorption impurity removal and rectification steam stripping on the dibutyl adipate crude product to obtain a dibutyl adipate product, the monohydric alcohol is n-butyl alcohol or isobutyl alcohol. The preparation method is high in raw material conversion rate, high in reaction rate and high in product yield, the purity of the refined product is larger than or equal to 99.5%, the impurity content is low, the product meets the cosmetic grade product standard, and the product can be applied to cosmetics.

The invention discloses anti-blue-light, anti-oxidation and anti-pollution refreshing essence lotion and a preparation method thereof, and belongs to the technical field of skin care product preparation. Every 100 parts of the skin care product is prepared from the following components in parts by weight: 1.0 to 4.0 parts of trehalose, 5.0 to 10.0 parts of coconut oil alcohol-octoate / caprate, 2.0 to 5.0 parts of dibutyl adipate, 0.3 to 1.0 part of tocopheryl acetate, 0.01 to 0.08 part of blue copper peptide, 0.5 to 3.0 parts of a radix scutellariae extract, 5 to 12 parts of a humectant, 0.05 to 0.20 part of a thickening agent, 1.0 to 3.0 parts of a volatile solvent, 2 to 4.2 parts of an emulsifier, 0.55 to 1.15 parts of an anti-corrosion stabilizer and the balance of water. The essence lotion provided by the invention can synchronously realize triple protection effects of blue light resistance, pollution resistance and oxidation resistance, has extremely fresh and cool skin feeling which can be quickly absorbed and is not sticky and not greasy, and is particularly suitable for long-term daily use of oily and mixed skin.

The invention belongs to the technical field of cosmetics, and discloses a sunscreen composition based on synergistic stabilization of sodium oleate and chondroitin sulfate as well as a preparation method and application of the sunscreen composition, and the composition comprises a sunscreen, an emulsifier (containing sodium oleate), grease, a thickener (containing chondroitin sulfate or salt thereof), a humectant, a preservative and water. Through the synergistic effect of static electricity and steric hindrance between sodium oleate and chondroitin sulfate and in cooperation with specific soluble grease (such as dibutyl adipate and neopentyl glycol dicaprate) and high-volatility grease (C10-13 isoparaffin), the composition remarkably improves the dissolution stability of a solid chemical sun-screening agent in a system; crystallization and precipitation in high and low temperature environments are effectively prevented, greasy feeling brought by a high-content liquid sun-screening agent is overcome, and the product is endowed with refreshing skin feeling. The composition is emulsion with good fluidity, supports a cold processing technology, is conveniently and directly added into various sunscreen cosmetics, and is simple and convenient to apply.