69 results about "Avobenzone" patented technology

An active or functional organic compound is solubilized in a diaryl organic compound having a polar or polarizable functional group therein, as a solvent, cosolvent or additive, to form a composition thereof. Representative active or functional organic compounds include those present in personal care products, e.g., sunscreens containing UVA/UVB absorbing compounds, such as avobenzone, benzophenone-3, and 4-methylbenzylidene camphor. Such compositions also show increased SPF, UVA/UVB absorbance ratio, and critical wavelength performance properties.

The present invention is directed to compositions for anti-acne sunscreen. The sunscreen composition has the unique ability to treat and prevent acne in addition to screen both UVA and UVB radiation. In particular, the sunscreen composition includes a sunscreen base, at least one UVA deactivator, at least one UVB deactivator, and at least one anti-acne agent. The UVA deactivator may be avobenzone and the UVB deactivator may be selected from one of the following oxybenzone, octisalate, octyl methoxycinnamate, or a mixture thereof.

Photostable broad-spectrum organic sunscreen compositions comprising a UV-A sunscreen, such as Avobenzone, a photostabilizer, a UV-B liquid organic sunscreen, and a solubilizer and further enhancing the photostability by encapsulation using a sol-gel process.

Low cost sunscreening formulations having SPF values greater than 40 contain homosalate, octyl salicylate or mixtures thereof, in combination with oxybenzone, and optionally further contain octyl methoxycinnamate, avobenzone or mixtures thereof.

In one aspect, a cosmetic composition includes a sunless tanning agent and a sunscreen agent. A photostabilizer is added to stabilize the sunscreen agent from the destabilizing effect of the sunless tanning agent. In this manner, UV protection is provided to the user when the cosmetic composition is applied to skin. In another aspect, a water-based sunless tanning/sunscreen composition includes a sunless tanning agent, a sunscreen agent, and a photostabilizer. The sunless tanning agent is DHA, and the sunscreen is avobenzone. Because the avobenzone degrades when exposed to UV radiation when used with DHA, the photostabilizer is added to enable the avobenzone to retain most of its original ability to absorb the UV radiation. The photostabilizer is a low molecular weight copolymer of adipic acid and neopentyl glycol.

The present invention relates to photostable compositions that provide protection from ultraviolet radiation (“UVR”). The invention particularly relates to the sunscreens avobenzone, octocrylene and oxybenzone, forming a triplet sunscreen combination. Compositions of the present invention are generally substantially free of substantial amounts of other sunscreens. The triplet combination surprisingly provides and substantially maintains the initial SPF value of the sunscreen composition throughout the period of UVR exposure. Compositions of the invention are photostable such that each of sunscreen active in the triplet combination does not appreciably photodegrade. The present invention accurately communicates the amount of UVR photoprotection actually provided in natural sunlight and minimizes the amount of potential harmful free radicals formed as byproducts of photodegradation.

Sunscreen compositions contain the active ingredients avobenzone, zinc oxide and phenylbenzimidazole sulfonic acid. The phenylbenzimidazole sulfonic acid protects avobenzone against photodegradation.

Disclosed is a topical skin care composition, and method for its use, that includes 55 to 65% by weight of water, 15 to 20% by weight of a combination of 3,3,5-Trimethylcyclohexyl 2-hydroxybenzoate (homosalate), 1-(4-Methoxyphenyl)-3-(4-tert-butylphenyl)propane-1,3 -dione (avobenzone), 2-ethylhexyl 2-hydroxybenzoate (octisalate), and 2-ethylhexyl 2-cyano-3,3-diphenyl-2-propenoate (octocrylene), 3 to 4% by weight of distearlydimonium chloride, and 1 to 3% by weight of a combination of euterpe oleracea fruit extract, punica granatum sterols, caprooyl tetrapeptide-3, tocopherol or tocopherol acetate, and niacinamide, wherein the composition has a sun protection factor of at least 15 or about 15 to 20.

An active or functional organic compound is solubilized in a phenylethyl ester, e.g. an aryl carboxylic ester of 2-phenylethyl alcohol, as a solvent, cosolvent or additive, to form a composition thereof. Representative active or functional organic compounds include personal care products, e.g. sunscreens containing UVA/UVB absorbing compounds, such as avobenzone and benzophenone-3. Such compositions also show increased critical wavelength and UVA/UVB absorbance ratio performance properties.

The invention discloses a composite anti-screening agent nanostructured lipid carrier. The carrier carries the active ingredients of all-band anti-screening agent medicines, and is characterized in that: the nanostructured lipid carrier comprises the following components in percentage by weight: 3-40% of composite anti-screening agent, 2-15% of emulsifier, 2-20% of composite lipid material and the balance of water, wherein the UVA anti-screening agent is avobenzone and consists of at least one of the following compounds: octocrilene and iso-octyl p-methoxycinnamate; the composite lipid material is the mixture of solid lipid material and liquid lipid material; and the lipid material consists of at least one of the following compounds: glyceryl triacetate, acetylate monoglyceride, diethyl sebacate, caprylic/capric triglyceride, diisopropyl adipate, diisopropyl sebacate, glyceryl monostearate, carnauba wax and behenate. The nanostructured lipid carrier has good stability and water solubility; the preparation method is simple and controllable and has good repeatability; and the nanostructured lipid carrier can be used for preparing anti-screening cosmetics.

The present invention relates to photostable compositions that provide protection from ultraviolet radiation (“UVR”). The invention particularly relates to the sunscreens avobenzone, octocrylene and oxybenzone, forming a triplet combination. Compositions of the present invention are free of diesters or polyesters of naphthalene dicarboxylic acid and also are substantially free of substantial amounts of other sunscreens and substantial amounts of optimizing agents. Sunscreens of the invention may be essentially free of, or free of, lower monohydric alcohol and/or acrylates/C_12-22 alkylmethacrylate copolymer in an effective non-pilling amount used to gel a C₁-C₄ alcohol. The triplet combination surprisingly provides and substantially maintains the initial SPF value of the sunscreen composition throughout the period of UVR exposure. Compositions of the invention are photostable such that each of sunscreen active in the triplet combination does not appreciably photodegrade. The present invention accurately communicates the amount of UVR photoprotection actually provided in natural sunlight.

The invention discloses a synthetic method of avobenzone. The avobenzone is prepared by subjecting phenetole and methylbenzene, as starting materials, to alkylation, oxidation, esterification, acylation and condensation reaction. During oxidation, the oxidant potassium permanganate is added to a reaction system six times, thus thermal decomposition and deacidification of the potassium permanganate is avoided, and reaction yield is higher. During esterification, with methylsulphonic acid as catalyst, P-tert-butyl benzoic acid and methanol are subjected to reflux reaction for 8 hours according to a molar ratio: 1:7; the methanol is added in two stages for reaction, and the problem that water diversion fails in the reaction process is solved. During acylation, phosphotungstic acid is used as catalyst, reaction selectivity is improved, post-reaction treatment is simpler, and reaction yield is higher; the phosphotungstic acid is recyclable, thus cost is saved and industrial production is more benefited.

Described herein are topical skin compositions useful for protecting the skin from the sun. The topical skin compositions comprise cosmetic ingredients such as homosalate; octisalate; oxybenzone; octocrylene; avobenzone; C12-15 alkyl benzoate; dicaprylyl carbonate; glycerin; VP/eicosene copolymer; cetearyl alcohol; caprylyl methicone; ceteth-20 phosphate; silica; and ammonium acryloyldimethyltaurate/VP copolymer. The compositions may also comprise other cosmetic ingredients, examples of which include film formers, preservatives, emulsifiers, conditioning agents, and moisturizers. Also disclosed are methods of using the topical skin compositions.

The invention discloses a cyclometalated iridium complex organic electrophosphorescent material, its preparation method and application. The cyclometalated iridium complex organic electrophosphorescent material has the following structural formula, wherein, LCN is C, N ligands that form cyclometalated coordination compounds with metal iridium, and is at least any one of 2-phenylpyridine (ppy) and its derivatives, 2-phenyl benzothiazole (bt) and its derivatives, 2-benzothiophene pyridine (btp) and its derivatives, 2-phenylquinoline (pq) and its derivatives, 2-phenylisoquinoline (piq) and its derivatives, 5-methyl-1-phenylisoquinoline (mpiq) and its derivatives, and 2-(3, 5-dimethyl phenyl) quinoline (dmq) and its derivatives. Synthesized with Avobenzone as an auxiliary ligand, the cyclometalated iridium complex organic electrophosphorescent material has high quantum efficiency, and can be applied in organic light-emitting devices (OLED) as a phosphorescence doped material, and has the advantages of simple preparation method and high yield.

The invention discloses sunscreen cream. The sunscreen cream is prepared from the following components in percentage by weight: 0.82-8.7% of titanium dioxide, 0.5-10% of diethylaminohydroxybenzoyl hexyl benzoate, 1.4-8.4% of octylmethoxycinnamate and 0.5-7.5% of methylene bis-benzotriazolyl tetramethylbutylphenol. According to the sunscreen cream, a physical sun-screening agent (titanium dioxide)and a chemical sun-screening agent (the diethylaminohydroxybenzoyl hexyl benzoate, the methylene bis-benzotriazolyl tetramethylbutylphenol and avobenzone) are reasonably blended to prepare a cream forming agent, and the sunscreen cream is good in skin feel and good in sunscreen effect.

Described herein are topical skin compositions useful for protecting the skin from the sun. The topical skin compositions comprise cosmetic ingredients such as homosalate, octisalate, oxybenzone, octocrylene, avobenzone, dimethicone, butylene glycol, styrene/acrylates copolymer, C12-15 alkyl benzoate, dicaprylyl carbonate, glycerin, ceteareth-25, dimethicone crosspolymer, magnesium aluminum silicate, acetyl dipeptide-1 cetyl ester, Crithmum maritimum extract, hydrolyzed algin, ascorbic acid, plankton extract, and Opuntia tuna fruit extract. The compositions may also comprise other cosmetic ingredients, examples of which include film formers, preservatives, emulsifiers, conditioning agents, and moisturizers. Also disclosed are methods of using the topical skin compositions.

Disclosed is a composition comprising 55 to 65% by weight of water, 20 to 25% by weight of a combination of octisalate, avobenzone, homosalate, oxybenzone, and octocrylene, and 3 to 6% by weight of a combination of polyvinylpyrrolidon/eicosene copolymer and hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer/squalane/polysorbate 60, wherein the water is included in the continuous phase of the emulsion, and wherein the emulsion has a sun protection factor of at least 30 or from about 30 to 40.

The invention provides a method for preparing avobenzone. The method comprises the steps that p-tert-butylbenzaldehyde and p-methoxyacetophenone serve as raw materials, a condensation reaction is performed under the alkaline condition, and prepared condensation products are oxidized into the avobenzone under the action of an oxidizing agent. The preparation method is simple, convenient, easy to perform and few in reaction steps, the preparation condition is mild and easy to control, and the prepared avobenzone is light in color, good in quality, pure in smell, high in market competitiveness and capable of easily achieving industrialization popularization.

The invention discloses a sun-screening agent free of an emulsifying agent. The sun-screening agent is prepared by a new sun-screening formulation is as follows: a UV defense basic systemconsists of octocrilene, octyl p-methoxycinnamate, avobenzone, and homosalate consitituting, and is matched with inactive ingredients such as isododecane/polydimethyl siloxane/vinyl polydimethyl siloxane crosslink, grapefruit essence, benzyl alcohol, silica silylate, plukenetia volubilis seed oil and argania spinosa kernel oil according to proportion. The UV defense basic system is added into other cosmetic preparation carriers, and can provide ultraviolet energy resistance. The sun-screening agent has no added emulsifying agent, is low in skin irritation, not only can effectively block ultraviolet injury to skin, but also has a waterproof efficacy, and very good compatibility with foundation make-up and other face skin care products, is silky in tactile sensation, refreshing, not greasy, and natural in make-up sensation. SPF30-SPF50 sun-blocking products are more suitable for Asian people, and have a broad market prospect.