164 results about "Sunscreen agents" patented technology

The invention relates to a fiber-reinforced aerogel composite material containing a carbon and titanium dioxide biphase hybrid opacifying agent as well as a preparation method and application of the fiber-reinforced aerogel composite material. The fiber reinforced aerogel composite material containing the carbon and titanium dioxide dual-phase hybrid opacifying agent comprises an inorganic aerogel matrix, wherein a reinforced fiber skeleton and the carbon / titanium dioxide dual-phase hybrid opacifying agent are dispersed in the inorganic aerogel matrix; the carbon / titanium dioxide biphase hybrid opacifying agent comprises a titanium dioxide shell layer and carbon / titanium dioxide core-shell structure particles, wherein the surface of a reinforced fiber skeleton is coated with the titanium dioxide shell layer in situ; gaps of the reinforced fiber skeleton are filled with the carbon / titanium dioxide core-shell structure particles. The problem to be solved is to construct a two-phase hybrid shading system in which carbon / titanium dioxide core-shell particles and a titanium dioxide coating layer on the fiber surface are combined through one-step in-situ synthesis, so that the heat insulation capacity of the composite material in a high-temperature environment is synergistically improved.

The invention provides a composite sun-screening agent based on an encapsulation technology as well as a preparation method and application of the composite sun-screening agent. The preparation method of the composite sun-screening agent comprises the following steps: fully dispersing hydroxyapatite nanoparticles in an alkaline solvent, adding a dopamine monomer, and carrying out oxidative polymerization reaction, centrifugal washing and drying to obtain HAP-PDA composite nanoparticles; and fully dispersing the HAP-PDA composite nanoparticles in a solvent, adding a mixed solution of a chemical sun-screening agent and an antioxidant and a surfactant, and performing encapsulation reaction and centrifugation to obtain the product. According to the invention, a polydopamine and hydroxyapatite composite encapsulation technology is innovatively adopted, so that the stability and biocompatibility of the sun-screening agent and the antioxidant are remarkably improved, the sun-screening effect is enhanced, and the product is endowed with a lasting sun-screening effect and excellent oxidation resistance. According to the invention, the limitation of a traditional sunscreen product is broken through, and safer, more efficient and more comfortable sunscreen experience can be provided for consumers.

The invention provides a relieving and sunscreen plant composition with effects of reducing toxicity and enhancing efficacy as well as a preparation method and application thereof, and belongs to the technical field of medicines. The composition is prepared from the following raw materials in parts by weight: 5 to 8 parts of water-containing inula flower extract, 10 to 15 parts of chamomile extract, 4 to 6 parts of radix gentianae extract and 25 to 40 parts of schizophyllan. The composition is prepared through precise combination and scientific process treatment of the four active ingredients, the relieving effect on skin injuries caused by sun-screening agent stimulation and ultraviolet radiation is remarkably improved, the resisting effect of ultraviolet light on the skin injuries is remarkably improved, part of chemical sun-screening agents can be replaced, the toxicity of cosmetics is reduced, and the skin care effect is good. The synergistic effect of toxicity reduction, efficient ultraviolet resistance and soothing and repairing is achieved, and a new technical scheme is provided for developing cosmetics with low toxicity, efficient ultraviolet resistance and sunscreen two-way soothing and repairing.

Disclosed is a core-shell microcapsule comprising a core containing at least one active ingredient, and comprising a shell, said shell constituting a wall around the core and representing a mass fraction of at least 20% of the total mass of the microcapsule, said microcapsule being characterized in that the shell comprises at least one crosslinked polymer, preferably obtained by interfacial polymerization. The size of the microcapsules is preferably less than 1 μm. The active ingredient can be a sunscreen.

The present invention relates to a cosmetic preparation comprising at least one mineral sunscreen filter, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, polyhydroxystearic acid, isostearic acid, polyglyceryl-2 oleate and polyglyceryl-2 stearate; and the use of the preparation for protection against sunlight.

The application discloses a polyurethane emulsion sunscreen film and a preparation method thereof. The sunscreen agent is surface grafted and modified by a silane coupling agent, so that the sunscreen agent is connected with a polyurethane molecular chain in a covalent bond, thereby solving the problem of weak interface bonding force and easy falling in traditional physical blending. On this basis, the molecular structure of the polyurethane matrix is ingeniously designed, and the grafted sunscreen agent is actively guided to migrate and enrich on the surface of the coating in the emulsion film forming process. The "surface enrichment" structure makes the sunscreen agent concentrate on the surface of the ultraviolet light, realizes the maximization of the function, and thus a high ultraviolet protection factor is obtained under a low addition amount. Meanwhile, the internal matrix can keep its flexibility and mechanical integrity due to the avoidance of a large amount of filler filling, and the chemical bonding on the surface ensures the long-lasting and wash-resistant sunscreen function, so that the synergistic effect of high efficiency, durability and mechanical performance balance is finally achieved.

The invention relates to a high-power sunscreen lotion and a preparation method thereof. The high-power sunscreen lotion is a silicone oil-in-water emulsion. The composition comprises a continuous oil phase, a dispersed water phase, a solid-phase component and a film-forming agent, the mass ratio of the water phase to the oil phase is (1: 10)-(1: 1); the continuous oil phase comprises silicone oil and a chemical sun-screening agent, and the chemical sun-screening agent comprises an oil-soluble chemical sun-screening agent; the dispersed aqueous phase comprises water and a water-soluble chemical sun-screening agent; the solid-phase component is dispersed in the continuous oil phase; the solid phase component comprises a physical sun-screening agent for silicon surface treatment and a powder composite sun-screening agent; the powder composite sun-screening agent is composite particles of porous silica loaded with a chemical sun-screening agent; the film-forming agent is a silane film-forming polymer which is dissolved or swelled in a continuous oil phase; the film-forming agent, the continuous oil phase and the solid phase jointly form a three-dimensional network, so that a continuous, uniform and water-resistant sunscreen film can be formed on the surface of skin after the sunscreen is smeared and dried; in addition, when the smearing amount of the sunscreen lotion is 1mg / cm < 2 >, the SPF value is not lower than 50.

The present invention relates to a UV filter concentrate comprising at least one oil-soluble organic UV filter UV1 that is liquid at room temperature, and at least two different oil-soluble organic UV filters UV2 and UV3 that are crystalline at room temperature, and at least one diol. The UV filter concentrate is processed into a sunscreen composition or a cosmetic composition or a home care composition.

The invention provides a liquid crystal response type intelligent structure-based sunscreen composition and a preparation method and application thereof, the liquid crystal response type intelligent structure-based sunscreen composition comprises the following components: a chemical sunscreen agent, a liquid crystal base material, an amphiphilic self-assembly film system, a structure-oriented fixing agent, a solvent, a pH regulator and water, the liquid crystal base material is an amphiphilic compound capable of being self-assembled in an oil-water system to form a layered liquid crystal structure, and the structure-oriented fixing agent comprises a fixing agent used for providing a three-dimensional network framework in the emulsification film-forming process and an interface stabilizer used for reducing the interfacial tension between a liquid crystal phase and an oil phase. A liquid crystal response type intelligent structure which can stably exist in a normal state and can generate predictable and controllable microcosmic phase change and recombination under triggering of external factors such as sweat and moisture is constructed, and the effect that the sunscreen efficiency is increased without reduction is achieved by forming a more compact and more ordered sunscreen film.

This invention provides a phenolic acid-modified attapulgite composite sunscreen agent, its preparation method, and applications, as well as a Pickering sunscreen lotion, belonging to the field of cosmetic technology. The method of this invention includes acid treatment of attapulgite, surfactant modification, loading of phenolic acid biomolecules, and hydrophobic modification. Using modified attapulgite as a carrier, this invention loads phenolic acid biomolecules through electrostatic adsorption to construct a composite synergistic system, and further modifies the surface with hydrophobicity to obtain a composite sunscreen agent with high stability and excellent sun protection performance. The sunscreen agent prepared by this invention combines physical shielding and biological protection functions, exhibiting excellent UV absorption capacity, good dispersibility, skin compatibility, and a pleasant feel on the skin. It solves the problems of nanoparticle aggregation, whitening, and poor photostability in existing sunscreen products, making it suitable for the cosmetic sunscreen field. It can achieve broad-spectrum UVA / UVB protection, antioxidant properties, and soothing repair, showing broad application prospects.

This invention discloses a multi-effect sunscreen agent and its preparation method, relating to the field of cosmetic technology. This invention adds vetiver root extract, winged fruit oil, and rice bran oil extract to existing conventional chemical sunscreen ingredients, which not only reduces the amount of isoamyl methoxycinnamate, ethylhexyl triazine ketone, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyl triazine used in existing chemical sunscreens, but also synergistically increases the sun protection effect. The active ingredients of this multi-effect sunscreen agent are plant-derived substances, making the ingredients safe and mild. Furthermore, the preparation method is simple, the ingredients are readily available, and it has broad market application prospects.

This invention relates to the field of nanomedicine formulation technology, specifically disclosing the application of selenium humate in the preparation of sunscreens and the sunscreens themselves. The selenium humate is prepared by reacting sodium humate with sodium selenite. The selenium humate provided by this invention exhibits broad-spectrum absorption characteristics against UVA / UVB, significantly improving the sun protection factor of products. It effectively scavenge free radicals, inhibits the increase in reactive oxygen species levels in cells caused by ultraviolet radiation and the overexpression of inflammatory factors IL-6 and IL-8, significantly alleviates symptoms of ultraviolet damage to the skin, and promotes collagen synthesis in the dermis, possessing excellent integrated protection and repair functions.

The invention belongs to the technical field of sunscreen cosmetics, and particularly relates to a sunscreen agent based on hydroxyapatite microspheres and a preparation method of the sunscreen agent. The sun-screening agent based on the hydroxyapatite microspheres is prepared from the following components in percentage by mass: 13 percent to 26 percent of water-soluble chitosan, 40 percent to 43 percent of the hydroxyapatite microspheres and 34 percent to 44 percent of a freeze-drying protective agent. The sun-screening agent can act on the skin epidermis through introduction, is different from a traditional sun-screening agent which is only simply smeared to maintain the sun-screening effect of one day or several days, and the long-acting sun-screening agent based on the hydroxyapatite microspheres can stay on the skin epidermis for a long time to achieve the effects of absorbing and reflecting UVB, so that the sun-screening effect is achieved until the sun-screening agent is completely degraded.

The present invention relates primarily to the use of graphitic carbon nitride containing at least one oxygen atom, as an active ingredient in paints, pigments, plastic fillers, active ingredients in cosmetics, and / or as a sunscreen, such as a UV A and / or UV B absorber. Graphitic carbon nitride can exhibit UV A and / or UV B absorption properties and a white to yellow color, and thus is useful as a UV absorber for various products requiring coloring properties and an attractive appearance.

The invention relates to the field of cosmetics, in particular to a composition and application thereof in sunscreen. The composition adopts pure natural components, is mild and safe, and is friendly to the environment and human bodies. The dosage of a chemical sun-screening agent in a high-power sun-screening product can be reduced, and a fresh and light skin feeling is provided. The sunscreen composition focuses on full-band strong adsorption of spectral ultraviolet rays and blue rays in the early stage, the SPF value can be directly increased by 20%-35% after entering the formula, the sunscreen synergistic effect is remarkable, and the dosage of a chemical sunscreen agent can be reduced by 10%-15% or the SPF value can be increased by 20%-35% by adding 1% of the sunscreen composition. Soothing, repairing and anti-blackening effects are provided for skin problems caused by ultraviolet rays, and full-dimensional sunscreen is achieved.

The application discloses a kind of high-strength high-temperature-resistant ceramic fiber aerogel and preparation method thereof, aerogel is composed of modified sunscreen agent, binder and ceramic fiber, ceramic fiber forms honeycomb hole, binder and modified sunscreen agent are uniformly attached on hole wall;Wherein modified sunscreen agent is the " double-layer ball " structure of silica wrapping titanium dioxide particle.The application is bonded by binder between fiber and fiber, and directional freeze drying is prepared anisotropic ceramic fiber aerogel, after high-temperature heat treatment, aerogel shows extremely high strength, can withstand 500KPa pressure in single orientation, can satisfy many actual needs.

The invention provides a composition. The composition comprises the following components in parts by weight: 0.001-5 parts of a PDRN-ergothioneine compound; 0.001 to 5 parts by weight of achillea millefolium extract; and 0.01 to 0.5 part by weight of a sphingomonas fermentation product extract. The invention also provides a preparation method of the composition and a sunscreen composition using the composition. According to the composition provided by the invention, the ergothioneine, the PDRN, the achillea millefolium extract and the sphingomonas fermentation product are scientifically proportioned to construct a functional system covering an ultraviolet injury full path, so that the deep synergy and synergism of all active ingredients in action time sequence, cell target and biological effect are realized. The composition provided by the invention covers a multi-channel synergistic effect system of a light damage whole chain, and the light protection effect is excellent; and the composition has a synergistic effect on the traditional sun-screening agent, and can significantly improve the sun-screening index, enhance the light stability and improve the product experience.

The present application relates to the field of daily chemical technology, and especially relates to a breakable sunscreen condensation bead composition and a preparation method and application thereof. The composition has independent granular shape and is transformed from granular shape into continuous phase emulsion under external force, and the composition comprises (A) a gel skeleton component containing two or more than two hydrophilic polymer materials with different rheological behaviors; (B) a sunscreen active component containing one or more than one organic sunscreen agent and / or inorganic sunscreen agent; (C) an oil phase and an emulsifier for forming an emulsified internal phase embedding the sunscreen active component; (D) an efficacy composition. Compared with the prior art, the present application realizes the structural expression of a high sunscreen load system by forming a three-dimensional weak cross-linked gel network cooperatively formed by multiple hydrophilic polymers, combining an oil phase emulsified internal core and a surface structure regulation component, so that the composition has a stable condensation bead shape in a storage state, can be broken and release the internal emulsified phase under external force, and thus realizes rapid spreading.

The invention relates to a water-based cosmetic preparation containing a) 0.2 to 10 wt.% 2-phenylbenzimidazole-5-sulfonic acid salts, b) 0.1 to 5 wt.% hydrolyzed corn starch with a glass transition temperature of at least -20°C, measured using DSC with a continuous heating rate of 10 K / min. in the range from -100 to 95°C, where the weight figures relate to the total weight of the water-based preparation.

This invention belongs to the field of daily chemical product technology, specifically relating to a high-efficiency sunscreen mousse aerosol and its preparation method. The high-efficiency sunscreen mousse aerosol provided by this invention comprises the following components and their mass percentages: 10%-18% sunscreen agent combination, 1.5%-3% film-forming agent, 2%-5% moisturizer, 1%-2.5% emulsifier, 0.5%-1.5% dispersing aid, 20%-30% propellant, 0.1%-0.3% preservative, 0.05%-0.1% masking agent, and the balance being water; the film-forming agent includes cyclopentamethoxysiloxane and trimethylsiloxysilicate. This invention offers high sun protection efficiency and uniform dispersion of the sunscreen agent, avoiding the severe "whitening" problem of traditional products. It exhibits excellent adhesion to the skin surface, reducing sunscreen film peeling due to sweating and wiping, achieving long-lasting protection. Furthermore, the formula system is stable, forming a thin and breathable protective film after spraying, providing a refreshing and safe feel on the skin.

The utility model provides a sun-screening agent rectification device capable of filtering distillate, which comprises a feed port, a distillation retort, a cooling ring pipe, a distillate tank and a shell, and a group of cover bodies for sealing and covering the distillation retort are arranged on the outer side of the feed port. Compared with the prior art, the sun-screening agent distillation tank has the following beneficial effects that after a worker introduces a sun-screening agent raw material through the feeding hole, the sun-screening agent raw material is subjected to a distillation process in the distillation tank, so that the sun-screening agent raw material can be fully mixed, and the sun-screening agent raw material can be fully mixed; the distillate is pumped out through the liquid guide pipe and then enters the filtering tank, the distillate is subjected to multi-stage filtering through the filtering net, in the filtering process, the inner expansion ring and the inner supporting ring can provide stable supporting for the shell, and the situation that the shell is deformed due to the high temperature of the distillate is prevented.

This application relates to a method for assessing the internal exposure risk of sunscreens based on a PBPK model and a method for constructing a PBPK model for sunscreens, belonging to the technical field of chemical environmental toxicology and risk assessment. A method for assessing the internal exposure risk of sunscreens based on a PBPK model includes: applying a sunscreen PBPK model to simulate and predict the dynamic exposure level of sunscreen concentration or mass in human tissues and organs over time under different usage scenarios; the model compartments of the sunscreen PBPK model include the stratum corneum of the skin, epidermis and dermis, liver, kidneys, fat, the rest of the body, filtrate, urine, and feces; and setting plasma as the core hub for substance exchange in each model compartment; and the sunscreen PBPK model includes differential equations for the change of sunscreen concentration or mass in each model compartment over time, constructed from physiological parameters and chemically specific parameters. This achieves efficient and accurate quantitative prediction of the internal exposure level of sunscreens under different formulations and usage scenarios.

The application discloses a high-multiple sunscreen composition with light and thin skin feeling and a preparation method and application thereof, and belongs to the technical field of cosmetics. According to weight parts, components of the high-multiple sunscreen composition include: sunscreen agent 17-35 parts, skin feeling adjusting composition 1-11 parts, pre-emulsified slurry 1-4 parts, emulsifier 1.5-5 parts, emulsion stabilizer 0.4-2.2 parts, skin conditioner 2-7 parts, and water supplementing the rest to 100 parts. Through component formula and preparation method optimization, the scheme of the application can better solve the contradiction between product viscosity, stability and sunscreen effect; the prepared sunscreen composition has light and thin skin feeling, is not greasy, has low product viscosity, is stable in system, and has sunscreen effect reaching SPF50+ and PA++++ index.

A water-in-oil emulsion with an aqueous and an oil phase, such that the oil phase comprises at least one oil-soluble sunscreen, a functional elastomer, a retinoic acid precursor and a substituted resorcinol.

An oil-in-water emulsion having an SPF of at least 25, comprising: (a) at least 0.01 wt.% of one or more types of retinol selected from the group consisting of retinol, retinaldehyde, retinoic acid, or a combination thereof; (b) one or more water soluble antioxidants; (c) one or more oil soluble antioxidants; (d) at least 10 wt.% of one or more oil soluble or oil dispersible sunscreen components. Methods of making the oil-in-water emulsions as well as uses and methods of use of the oil-in-water emulsions.

The invention relates to a cosmetic sun protection composition in the form of an oil-in-water emulsion, suitable for topical application to the skin, comprising water, at least one oily emollient, a mixture of liposoluble organic sunscreens, one or more specifically selected gelling agents, and an emulsifying system containing at least myristyl glucoside. This composition has a light texture and is rapidly absorbed by the skin.

The invention belongs to the field of polymer biological materials, and particularly relates to a thiazoline-pyrimidone structure-containing polymer which can be used as an effective component of sunscreen cream. The preparation method comprises the following steps: (1) in an anhydrous organic solvent, mixing a thiazoline-pyrimidone monomer and polyethylene glycol methacrylate for reaction to obtain a component A; and (2) in an inert atmosphere, mixing a free radical initiator with the component A, reacting to obtain a component B, and then separating a copolymer containing a thiazoline-pyrimidone structure from the component B to serve as the sun-screening agent for ultraviolet protection of mice, and the structure of the copolymer is as shown in a formula I. The invention further discloses a preparation method of the sun-screening agent for ultraviolet protection of mice. The polymer provided by the invention has a good effect on biological ultraviolet protection.

The utility model relates to a sun-proof quick-dry cool-feeling yarn which is of a bi-component skin-core structure, the bi-component skin-core structure comprises a core layer and a skin layer, the core layer is made of PA materials and has high specific heat capacity, so that the specific heat capacity of the yarn is greatly improved, and the PA materials have soft performance, so that the yarn has good softness while keeping cool feeling; the skin layer is made of a PET (Polyethylene Terephthalate) material, has excellent quick-drying performance and can quickly disperse moisture, so that the skin sticking phenomenon caused by sweating is avoided; the heat-conducting particles are added into the skin layer, so that the heat-conducting property of the skin layer is improved, the heat-conducting property of the yarn is remarkably enhanced, and the yarn has a more lasting and cool touch feeling by combining the heat-conducting particles with the PA with high specific heat capacity of the core layer; the nano-scale heat-conducting particles uniformly dispersed in the skin layer can reflect sunlight, reduce the absorption of sunlight heat energy by the yarn, improve the sun-screening performance of the fabric, play the antibacterial role of the nano-material, and solve the problems that a traditional after-finishing sun-screening agent is easy to fall off and the antibacterial effect is invalid.

A photoprotective cosmetic composition is provided comprising at least one chemical sunscreen agent, a sunscreen solubilizer / stabilizer, a wax, and a silicone elastomer. The weight ratio of silicone elastomer to wax is in the range of about 10:1 to about 1:10. The photoprotective cosmetic composition can be anhydrous and can further comprise a liquid carrier.

The invention discloses a nano cerium oxide-containing cosmetic and a preparation method thereof, and belongs to the technical field of cosmetics, the nano cerium oxide-containing cosmetic comprises the following components by weight: 10-15 parts of an emollient, 2-6 parts of an emulsifier, and 5-10 parts of a sun-screening agent; the emollient is a mixture of isohexadecane, ethylhexyl palmitate, isononyl isononanoate and polydimethylsiloxane, and the emollient is a mixture of isohexadecane and ethylhexyl palmitate; the emulsifying agent is a mixture of PEG-100 (Polyethylene Glycol) stearate, potassium cetyl phosphate and cetostearyl alcohol; the sun-screening agent is a mixture of nano cerium oxide and silicon oxide. According to the invention, nano cerium oxide is adopted as the sun-screening agent, so that the sun-screening film has no characteristic absorption on visible light, is good in permeability and good in ultraviolet ray prevention effect, and can realize full-wave-band protection.