64 results about "ISODODECANE" patented technology

The invention discloses a waterproof long-lasting oil-control gel composition and a preparation method thereof, and belongs to the technical field of cosmetics. The composition comprises 4-6 parts of an oil absorption compound A, 9-13 parts of an oil absorption compound B and 70-95 parts of a gel matrix, wherein the oil absorption compound A is prepared from mesoporous silica and poloxamer 407, and the aperture of the oil absorption compound A is 5-10 nm; the oil absorption compound B is prepared from polymethyl methacrylate microspheres, isododecane and polyglycerol-3 diisostearate, and the pore diameter of the oil absorption compound B is 150 to 300 nm. According to the invention, through dual mechanisms of temperature response and volatilization driving, a dynamic gradient structure of bottom layer small aperture-surface layer large aperture is formed at skin temperature, and directional migration of grease is realized; meanwhile, the surface property transformation of the material after oil absorption is creatively utilized, a hydrophobic membrane is formed on the surface of the polymethyl methacrylate microsphere, a self-enhanced waterproof barrier is constructed, the unique effect that the more oil is absorbed, the more water is resisted is achieved, the problem of makeup removal caused by sebum and sweat can be effectively solved, and the makeup lasting time is remarkably prolonged.

The application relates to the technical field of cosmetics, in particular to a high-concealment makeup-maintaining air cushion and a preparation method thereof. A film forming agent in the high-concealment makeup-maintaining air cushion comprises the following: trimethylsiloxy silicate 5-7 parts, isododecane 0.3-0.7 parts, and acrylic acid (ester) / polymethyltrimethicone methacrylate copolymer 2-3 parts. A colorant comprises the following raw materials in parts by weight: titanium dioxide 5-7 parts, silica 0.8-1.2 parts, mica powder 5-7 parts, CI 77492 0.4-0.8 parts, aluminum hydroxide 0.8-1.2 parts, CI 77491 0.4-0.6 parts, triethoxyl octyl silane 0.8-1.2 parts, and CI 77499 0.3-0.5 parts. The particle size of the titanium dioxide at least comprises any two of 4 nm, 30-50 nm and 200-260 nm. The air cushion has the advantages of prolonging the makeup-maintaining time of the air cushion and improving the concealment effect.

The invention provides a sandwich-structure bidirectional film-forming composition and a preparation method and application thereof, and relates to the technical field of sunscreen, the preparation method comprises the following steps: mixing isododecane, trimethylsiloxy silicate ester and disteardimonium hectorite to obtain an oil phase mixture; mixing butanediol, the sodium hyaluronate cross-linked polymer and the like to obtain a water-phase mixture; homogenizing the oil phase mixture and the water phase mixture; performing curing reaction and homogenizing pretreatment. According to the sandwich structure disclosed by the invention, the disteardimonium hectorite is taken as a carrier, an oil phase forms an initial hydrophobic membrane, the oil phase expands when encountering water and sweat, sunscreen protection is synergistically enhanced, and the prepared composition of the sandwich structure is good in stability.

The invention relates to the technical field of cosmetics, in particular to a high-concealing makeup holding air cushion and a preparation method thereof.The high-concealing makeup holding air cushion is characterized in that a film forming agent in the high-concealing makeup holding air cushion is prepared from 5-7 parts of trimethylsiloxy silicate, 0.3-0.7 part of isododecane and 2-3 parts of acrylic acid (ester) / polytrimethylsiloxane methacrylate copolymer; the coloring agent is prepared from the following raw materials in parts by weight: 5 to 7 parts of titanium dioxide, 0.8 to 1.2 parts of silica, 5 to 7 parts of mica powder, 0.4 to 0.8 part of CI 77492, 0.8 to 1.2 parts of aluminum hydroxide, 0.4 to 0.6 part of CI 77491, 0.8 to 1.2 parts of triethoxyoctyl silane and 0.3 to 0.5 part of CI 77499; the particle sizes of the titanium dioxide at least comprise any two of 4 nm, 30-50 nm and 200-260 nm; the air cushion has the advantages that the makeup holding time of the air cushion is prolonged, and the concealing effect is improved.

The invention belongs to the technical field of cosmetics, and particularly discloses a freeze-dried powder base solution and a preparation method thereof. The freeze-dried powder base solution comprises a component A and a component B. The component A is prepared from magnesium potassium fluosilicate, a filling agent, lauroyl lysine, titanium dioxide, CI 77492, CI 77491, CI 77499 and the balance water, butanediol, xanthan gum, a thickening agent, trehalose, polysorbate-60, an emulsifying agent a, phenyl polytrimethylsiloxane, isononyl isononanoate and a preservative. The component B is prepared from the following components: the balance of water, butanediol, a preservative, magnesium sulfate, an emollient, disteardimonium hectorite, phenyl polytrimethylsiloxane, isododecane, trimethylsiloxy silicate ester, an emulsifier b and PEG-10 (Polyethylene Glycol) polydimethylsiloxane. Various raw materials are mixed, so that the obtained liquid foundation has relatively good dispersity, has smooth and refreshing skin feeling, and is prevented from being thick, sticky and greasy.

The present invention relates to the field of skin cosmetics, and in particular to a soothing, long-lasting, sun-protective isolation cream and its preparation method. The isolation cream's raw materials include butylene glycol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, p-hydroxyacetophenone, disteardimonium hectorite, aluminum hydroxide, Piper mesenteriae leaf / root / stem extract, Gentiana scabra extract, and water. The isolation cream prepared by the present invention has good soothing, long-lasting, and sun-protective effects, as well as excellent free radical resistance and moisturizing effects. It is easy to apply and can improve skin gloss to a certain extent.

The invention discloses silicone-oil-free makeup-keeping liquid foundation and a preparation process thereof. The liquid foundation is prepared from the following raw material components in parts by weight: 1-2% of an emulsifier, 49-56% of an emollient, 3-6% of a film-forming agent and 40-43% of powder, wherein the emollient is prepared from ethylhexyl palmitate, cetyl alcohol ethyl hexanoate, isododecane, isopropyl myristate and squalane; the prepared liquid foundation does not contain silicone oil, is free of physiological toxicity and irritation, good in air permeability and good in skin feeling, the smearing layering sense and continuity of the liquid foundation are improved, and the liquid foundation is easier to use and more comfortable.

The invention relates to the technical field of cosmetics, in particular to a composite silicon elastomer composition, a base cosmetic and a preparation method of the base cosmetic. The silica gel comprises the following components: silica, polymethylsilsesquioxane, a siloxane cross-linked polymer and isododecane. Through the mutual synergistic effect of specific composite silicon elastomer compositions, the mass ratio of the silica to the polymethylsilsesquioxane to the siloxane cross-linked polymer to the isododecane is controlled to be (0.5-1.5): (1-2): (0.6-1): (1.5-2); the mass ratio of the polydimethylsiloxane to the vinyl polydimethylsiloxane cross-linked polymer to the vinyl polydimethylsiloxane to the polymethylsiloxane silsesquioxane cross-linked polymer is (0.3-0.5): (0.3-0.5), so that the soft coke performance is remarkably improved, the pore effect is effectively improved, and the soft coke effect is improved. The problem that the soft focusing effect, the skin feeling improvement and the cost reduction cannot be considered at the same time in the existing makeup technology is solved.

Title: Makeup composition comprising a polyphenol, a polyoxyethylenated and / or polyoxypropylenated hydrocarbon or silicone compound, a monoalcohol and a limited water content, and method implementing it. The invention relates to a makeup and / or skin and / or lip care composition comprising: a) at least one polyphenol X comprising at least two different phenol groups; b) at least one compound Y selected from compounds capable of forming at least one hydrogen bond with said phenol groups of polyphenol X, these compounds being hydrocarbon or silicone, preferably non-ionic, comprising at least one polyoxyethylenated and / or polyoxypropylenated motif; c) at least 25% by weight of at least one C2-C8 monoalcohol, preferably ethanol; d) optionally at least one nonpolar hydrocarbon volatile oil, in particular isododecane, at a content of at most 25% by weight, relative to the total weight of the composition;e) optionally water at a concentration of no more than 10% by weight, relative to the total weight of the composition; f) at least one coloring agent. The invention also relates to a method of applying makeup and / or skin and / or lip care, in particular lip care, in which the aforementioned composition is applied.

Provided are methods of providing a cooling sensation to skin afflicted with eczema, the methods comprising topically applying to skin afflicted with eczema a composition comprising isododecane.

This application relates to the technical field of cosmetics. More specifically, it relates to an anti-pollution lip balm and its preparation method. An anti-pollution lip balm is composed of the following components in corresponding compositions: emollient, beeswax, candelilla wax, carnauba wax, antioxidant, sugar film protectant UP, skin conditioner ACTICIRE MB, skin conditioner GATULINE IN-TENSE MB, and isododecane. The sugar film protectant UP and skin conditioner ACTICIRE MB of this application can form a double-layer smooth protection film on the lip skin. The skin conditioner GATULINE IN-TENSE MB can tighten the lip skin, fade lip wrinkles, improve the fullness of the lip skin and the smoothness of the protection film, effectively reduce the attachment of external environmental pollutants to the lips, and is beneficial to improving the ability of the lip skin to resist environmental pollution.

The invention discloses a preparation method of isohexadecane solvent naphtha, which comprises the following steps: treating a raw material isohexadecane mixture by a feed adsorption tank and a feed filter, feeding into a feed buffer tank, boosting by a hydrogenation feed pump, mixing with recycle hydrogen, exchanging heat with reaction generated oil, and feeding into a pre-hydrogenation reactor; a pre-hydrogenation reaction product is mixed with high-pressure circulating oil and circulating hydrogen, is subjected to heat exchange with reaction generated oil, is fed into a hydrofining reactor, is subjected to heat exchange, is cooled, and is fed into a high-pressure separator; the reaction generated oil and the hydrogenation generated oil at the bottom of the high-pressure separator are sent to a product separation tower after components are removed by a light component removal tower; the product separation tower is provided with a side stream stripping tower, isohexadecane solvent oil is extracted from the bottom of the side stream stripping tower, and byproducts such as isododecane solvent oil and isoeicosane solvent oil are extracted from the top and the bottom of the separation tower respectively. The method prolongs the service life of the catalyst and the operation cycle of the device, reduces the operation energy consumption of the device, reduces the carbon emission and saves the investment.

The invention discloses a composite film-forming agent as well as a preparation method and application thereof, and aims to provide a composite film-forming agent which can remarkably improve the fitting degree and tensile property of base makeup on the skin surface, enhance the glossiness of the makeup surface, improve the hydration degree of the skin, strengthen the moisturizing effect and form a layer of oleophylic makeup-holding film and a moisturizing film with enhanced hydrophilic capacity. Therefore, a dual film forming effect is achieved; according to the technical scheme, the cleaning agent comprises 4-14% of isododecane; the invention relates to a silicone sealant which is prepared from the following components in percentage by weight: 5 to 40 percent of trimethylsiloxane silicate, 5 to 40 percent of hydrogenated (styrene / methyl styrene) indene copolymer, 30 to 40 percent of cyclopentasiloxane (and) PEG / PPG-18 / 18 polydimethylsiloxane, 0 to 12 percent of polyvinyl pyrrolidone, 0 to 1 percent of polyquaternium-51 solution and 10 percent of water, wherein the sum of the components is 100 percent. The invention belongs to the technical field of cosmetics.

The application provides a water-in-oil emulsion for Antarctic drilling fluid and a preparation method and application thereof. The water-in-oil emulsion for Antarctic drilling fluid is prepared from drilling fluid base fluid, water, inorganic salt and emulsifier; the drilling fluid base fluid is one of aviation kerosene or isododecane; the inorganic salt is CaCl2 and / or NaCl; and the emulsifier is one or a combination of two or more of sodium dodecyl benzene sulfonate, Span-80 and Tween-60. The water-in-oil emulsion for Antarctic drilling fluid has excellent emulsification and rheological properties and can resist ultra-low temperature of-35 DEG C. The problems of poor emulsion stability, difficult rock carrying and poor suspensibility of drilling fluid in the process of polar drilling can be solved. In addition, compared with Antarctic pure oil-based drilling fluid, the emulsion also has the advantage of low cost.

The application discloses a long-acting makeup holding foundation liquid, which comprises water, titanium dioxide, hydrogenated polydecene, isododecane, isohexadecane, dimethicone, caprylic acid / capric acid triglyceride, dipropylene glycol, silica, polyglyceryl-2 dipolyhydroxystearate, synthetic fluorphlogopite, polymethylsilsesquioxane, a film forming agent, magnesium sulfate, cetyl PEG / PPG-10 / 1 dimethicone, lithium montmorillonite, triethoxysilane, ethanol, dimethicone / vinyl dimethicone crosspolymer, alumina, dimethiconol, collagen, natural extract, a colorant, a moisturizing agent and trace additives. The long-acting makeup holding foundation liquid has reliable water supplementing and moisturizing and oil control effects, can selectively absorb and control oil, has reliable skin friendliness, can reliably protect makeup of oily skin, and avoids the problem of makeup removal caused by facial oil secretion.

The invention provides a preparation method and application of bio-based isododecane, and belongs to the field of organic chemical industry. The preparation method of the bio-based isododecane comprises the following steps that biomass aviation kerosene is added into a vacuum rectifying tower to be subjected to vacuum rectification, a rectification product is extracted from a side line of the bottom of the vacuum rectifying tower, and the concentration of C12 fraction in the rectification product is larger than or equal to 92%; adding the rectified product into a flash tower to remove residual light components, so that the impurity content of the light components is reduced to be less than or equal to 0.8%; adding a flash product into a molecular distillation instrument at the vacuum degree of lt; carrying out distillation treatment under the condition of 1Pa, wherein the purity of the obtained crude product is greater than 98.5%; and carrying out adsorption treatment on the crude product through an activated carbon-molecular sieve composite bed layer to obtain the cosmetic-grade bio-based isododecane. The preparation method has the advantages of low energy consumption and high selectivity, and the prepared bio-based isododecane meets the standard for cosmetics and can be applied to manufacturing of cosmetics.

The invention discloses a polytetrafluoroethylene membrane for air filtration and a preparation method thereof, and relates to the technical field of polytetrafluoroethylene membranes. The polytetrafluoroethylene film is prepared from polytetrafluoroethylene resin and isododecane. Then the polytetrafluoroethylene membrane is subjected to amination treatment, so that active sites on the surface of the polytetrafluoroethylene membrane are increased, and more dendrobium polysaccharide-hyaluronic acid components can be loaded. The surface of the aminated polytetrafluoroethylene film is coated with a layer of dendrobium polysaccharide-hyaluronic acid mixed liquid, dendrobium polysaccharide has a good bacteriostatic effect on staphylococcus aureus and escherichia coli, and the antibacterial performance of the polytetrafluoroethylene film can be improved. In addition, copper chloride is added into the dendrobium polysaccharide-hyaluronic acid mixed solution, and the copper chloride can destroy microbial cell membranes, so that the antibacterial effect is achieved, and the antibacterial performance of the polytetrafluoroethylene membrane is improved.

To provide a non-aqueous hair composition that provides good manageability when drying hair and a moist feeling after drying, and a hair treatment method using the composition. [Solution] The non-aqueous hair composition contains (A) a kinematic viscosity at 37.8°C of 1.38 mm² or more by mass of 15% or more. 2 / s or more 13.0mm 2 The composition contains (B) hydrocarbons with an organic value of less than 500, (C) volatile acyclic silicones and / or isododecane, (D) highly polymerized methylpolysiloxanes and / or highly polymerized dimethiconol, and (A) compounds having ester bonds with an organic value of less than 500. The hair treatment method involves using the above non-aqueous hair composition.

To provide a non-aqueous hair composition that provides good manageability when drying hair and a soft, smooth feel after drying, and a hair treatment method using the composition. [Solution] The non-aqueous hair composition contains (A) a kinematic viscosity at 37.8°C of 1.38 mm² or more by mass of 15% or more. 2 / s or more 13.0mm 2 The composition contains (B) a hydrocarbon with a molecular weight of 0.50 or less, (C) a volatile acyclic silicone and / or isododecane, (D) a compound having an ester bond with an organic value of 350 to 520 and an inorganic value of 70 to 240, and the hair treatment method uses the above non-aqueous hair composition.

The invention relates to the technical field of aromatics, in particular to a double-layer volatile fragrance diffusion and a preparation method thereof.The double-layer volatile fragrance diffusion comprises fragrance diffusion liquid and fragrance diffusion sample strips, the fragrance diffusion liquid at least comprises, by mass, 3-30% of aromatics, 0-3% of coloring agents, 0-2% of preservatives and the balance solvents, and the solvents at least comprise ethyl alcohol, isododecane and water; the liquid layering effect is achieved by optimizing a product formula system, different visual experiences are achieved, two phases exist stably, and the double requirements of consumers for long-time lasting fragrance and visual experience are met.

The invention belongs to the technical field of recycling of waste liquid containing vinyl acetate and isododecane, and discloses a method and a system for separating and recycling waste liquid of an EVA (Ethylene Vinyl Acetate) device. The EVA device waste liquid is conveyed to a rectifying machine for rectification separation, vinyl acetate steam is obtained at the top, fraction liquid is obtained after condensation, one part of fraction liquid flows back into the rectifying machine, and the other part of fraction liquid serves as a vinyl acetate product to be extracted; the rectification residual liquid is conveyed to a first flash tank for flash evaporation, so that part of isododecane and residual vinyl acetate are subjected to flash evaporation to form mixed flash evaporation gas, and the mixed flash evaporation gas is extracted from the top of the first flash evaporation tank and sent back to the reboiler to heat kettle liquid; and heating first flash evaporation residual liquid discharged from the bottom of the first flash evaporation tank, feeding the first flash evaporation residual liquid into a second flash evaporation tank for flash evaporation, evaporating residual isododecane from the top of the second flash evaporation tank, and condensing to obtain an isododecane product. According to the method, the waste liquid of the EVA device is treated by adopting a separation method combining supergravity reduced-pressure rectification with two-stage flash evaporation, so that the self-polymerization reaction of vinyl acetate in the separation process is effectively reduced.

The invention belongs to the technical field of daily cosmetics, and particularly discloses double-continuous-phase cleansing oil and a preparation method thereof. The bicontinuous phase cleansing oil comprises a component A and a component B. The component A is prepared from 1%-10% of PEG-7 glyceryl cocoate, 10%-20% of PEG-20 glyceryl triisostearate, 10%-30% of cetyl alcohol ethyl hexanoate, 10%-30% of coconut oil alcohol-octoate / caprate and 10%-20% of isododecane. The component B is prepared from 1 to 15 percent of methylpropanediol, 1 to 10 percent of glycerol, 0.5 to 2 percent of radix gentianae macrophyllae extract, 1 to 10 percent of butanediol, 0.5 to 2 percent of 1, 2-hexanediol, 0.5 to 3 percent of 1, 2-pentanediol, 0.5 to 2 percent of cordyceps sinensis mycelium powder and the balance of water. According to the present invention, the component A and the component B are mixed to form the continuous and stable three-dimensional network structure with the oil channel and the water channel penetrating through each other, such that the instant emulsification, the easy washing, the refreshing skin feeling and the functional component can be provided so as to achieve the omnibearing cleaning;

The invention relates to a non-aqueous composition for hair and a hair treatment method. The present invention addresses the problem of providing: a non-aqueous composition for hair, which has good finger-passing properties when drying hair; and a hair treatment method using the composition. [Solution] A non-aqueous hair composition obtained by blending (A) 15 mass% or more of a hydrocarbon having a kinematic viscosity of 1.38 mm2 / s or more and 13.0 mm2 / s or less at 37.8 DEG C, (B) a volatile non-cyclic silicone and / or isododecane, and (C) a highly polymerized methylpolysiloxane and / or a highly polymerized polydimethylsiloxane alcohol, the hair treatment method is a method using the non-aqueous composition for hair.

To provide a nonaqueous composition for hair ensuring smooth finger combability in drying hair, and a hair treatment method utilizing the composition.SOLUTION: A nonaqueous hair composition contains (A) 15 mass% or more of a hydrocarbon having a kinematic viscosity of 1.38 mm2 / s or more and 13.0 mm2 / s or less at 37.8°C, (B) a volatile acyclic silicone and / or isododecane, and (C) a high-polymer methylpolysiloxane and / or a high-polymer dimethiconol. A hair treatment method employs the nonaqueous composition for hair.SELECTED DRAWING: None

The invention relates to the technical field of membrane materials, in particular to a high-strength ePTFE framework microporous membrane and a preparation method thereof. The preparation method comprises the following steps: S1, uniformly mixing polytetrafluoroethylene resin and isododecane, standing for curing, extruding into sheets, and drying and degreasing to obtain a polytetrafluoroethylene film; s2, carrying out stretching treatment and heat setting on the polytetrafluoroethylene film to obtain an ePTFE skeleton microporous film; and S3, carrying out plasma surface activation treatment on the ePTFE skeleton microporous membrane, soaking the ePTFE skeleton microporous membrane in a surface modification solution for 15-25 minutes, adding a glutaraldehyde solution, carrying out a reaction for 1-2 hours, and carrying out cleaning and drying to obtain the high-strength ePTFE skeleton microporous membrane. The surface modification solution is prepared by compounding 50-60 parts by mass of a polyvinyl alcohol solution, 20-30 parts by mass of a modified polyethyleneimine solution and 10-20 parts by mass of a modified chitosan solution.

The invention discloses a low-temperature paraffin remover for paraffin with high carbon number, which belongs to the field of paraffin removers and comprises the following components in parts by weight: 70-80 parts of a first solvent and a second solvent; 3-13 parts of a penetrating agent and 1-10 parts of a dispersing agent; 1-7 parts of an inhibitor; the first solvent is one of S1000, S1200, S1500, S1800, S2000, S2600, D40, D60, D80 and 1-ethyl-3-methylimidazolium tetrafluoroborate, and the second solvent is one of 1-ethyl-3-methylimidazolium tetrafluoroborate and 1-ethyl-3-methylimidazolium tetrafluoroborate; the second solvent is one or a mixture of more of petroleum ether 60 # to 90 #, petroleum ether 90 # to 120 #, petroleum ether 150 #, petroleum ether 200 #, n-heptane, dodecane, isododecane, nonane, 2-methyl-3-ethylpentane, 3-methylhexane, ethanol, acetone, dimethyl sulfoxide and tetrahydrofuran; and the penetrating agent is one of n-amyl alcohol, isoamyl alcohol, n-caprylic alcohol, hexanediol and ammonium adipate.

The invention discloses a protective coating for the surface of an electronic component and a preparation method thereof, and relates to the technical field of coatings. The coating is prepared from the following raw materials in parts by mass: 100 parts of epoxy modified acrylate copolymer, 8 to 9 parts of butyl acetate, 6 to 7 parts of propylene glycol methyl ether acetate, 6 to 7 parts of isododecane, 4 to 6 parts of modified boron nitride nanotube, 3 to 5 parts of synergist, 0.2 to 0.4 part of 2-methylimidazole, 0.1 to 0.3 part of defoaming agent, 0.2 to 0.4 part of flatting agent and 0.1 to 0.3 part of sterilizing agent. The epoxy modified acrylate copolymer, the modified boron nitride nanotube, the synergist and other components are introduced, so that the adhesive force, impact resistance, wear resistance, weather resistance, aging resistance, dielectric strength, volume resistivity and high-frequency signal adaptability of the protective coating are effectively improved while the weldability of a lead of an electronic component is not affected. Therefore, the method has a wider application prospect.

The present application relates to the technical field of makeup setting products, and specifically discloses a modified mica, a fine-powdered sunscreen powder, and a preparation method thereof. The modified mica comprises: a core material composed of mica / polydimethylsiloxane / triethoxycaprylylsilane, squalane, and meadowfoam seed oil; and a wall material coated on the outer surface of the core material, the raw materials for its preparation including polydimethylsiloxane / vinyl polydimethylsiloxane cross-polymer / silica, trimethylsiloxysilicate, isododecane, and polydimethylsiloxane. The modified mica of the present application can be used to prepare powdered powder, which has the advantages of fine powder and not easy to precipitate, and can improve the problems of coarse powdered powder and easy precipitation of sunscreen.

The present invention relates generally to methods and compositions suitable for the removal of cosmetics from skin. The cleansing composition is a two-phase composition comprising an aqueous phase comprising more than 90% by weight of water; and an oil phase comprising a combination of C9-12 alkane and coconut oil alcohol caprylate / coconut oil alcohol caprate, a combination of isododecane and half squalane, a combination of isododecane and octyl polymethylsiloxane, a combination of polydimethylsiloxane and C11-13 isoparaffin, or a combination of neopentyl glycol diheptanoate and isododecane, or any combination thereof.

The invention provides a preparation method of isododecane solvent oil. The preparation method comprises the following steps: 1) removing an oxygen-containing compound from isododecene through an adsorption tank; 2) reacting isododecene with hydrogen in the pre-hydrogenation reactor to remove alkadiene; 3) carrying out hydrodeoxygenation, olefin saturation, aromatic hydrocarbon saturation and other reactions in the hydrofining reactor; and 4) separating the reaction product to obtain a high-purity isododecane solvent naphtha product. The isoparaffin solvent oil obtained by the method is high in yield, high in isoparaffin content and high in isobranching degree. The content of aromatic hydrocarbon, sulfur and nitrogen compounds in the product is extremely low. By arranging the pre-hydrogenation reactor, the coking of the hydrofining reactor is effectively reduced; by arranging the circulating pump, the temperature difference in the reactor is effectively reduced; by arranging the reaction effluent / pre-hydrogenation reaction feeding heat exchanger and the reaction effluent / hydrofining reaction feeding heat exchanger, reaction heat is effectively utilized, arrangement of a reaction feeding heating furnace is omitted, and the operation energy consumption of the device is reduced.