7 results about "Oxybenzone" patented technology

A sunscreen composition, containing an effective amount of Methylene Blue and / or a hydrate and or a pharmaceutically-acceptable salt thereof; an effective amount of one or more UVA and / or UVB absorbing compounds, with the proviso that Oxybenzone and Octinoxate are excluded; and an excipient base.

The present invention discloses a strain of Stenotrophomonas maltophilia capable of degrading oxybenzone and its applications. The strain, Stenotrophomonas maltophilia CJY, is extracted from sewage plant sludge and has a highly efficient oxybenzone degradation effect, relatively completely converting the pollutant into harmless substances such as CO2 and H2O. Therefore, it has broad application prospects in the biological purification of industrial waste gas and wastewater. In an environment with a pH of 7, the strain can achieve a 50% removal rate for 50 mg / L of oxybenzone and a 30% removal rate for 125 mg / L or less of oxybenzone.

The present invention relates to a corrosion-resistant carat pipe and a preparation method thereof, belonging to the technical field of polymer materials. The corrosion-resistant carat pipe comprises, by weight, 40-60 parts of HDPE resin, 5-15 parts of PP resin, 10-20 parts of adhesive resin, 1-3 parts of defoaming agent, 1-3 parts of lubricant, 1-2 parts of dispersant, 1-3 parts of stabilizer, and 4-6 parts of modified heat-resistant agent. The compound improves the chemical corrosion resistance of the carat pipe, and the long carbon chain structure and conjugated double bonds of the compound give it good flexibility and reactivity, improve the molecular structure or crystallinity of high-density polyethylene, form a cross-linked structure with the HDPE molecular chain, enhance the mechanical properties of the material, and restrict the movement of the molecular chain. The benzene ring and carbonyl group in oxybenzone form a conjugated system to absorb ultraviolet rays and extend the service life. The corrosion-resistant carat pipe prepared by the present invention not only has good corrosion resistance and heat resistance, but also has excellent ultraviolet resistance and tensile strength.

The present invention involves the formation of host-guest complexes between C-methylresorcin[4]arene and Oxybenzone (OXB). NMR spectroscopy confirmed the formation of a weak host-guest complex and molecular dynamics docking simulations indicated that this complex likely had a 1:1 stoichiometry. Furthermore, skin permeation testing revealed that complexation by C-methylresorcin[4]arene significantly reduced the amount of OXB that permeated skin. These results show the potential of supramolecular complexation for improving the stability and decreasing the skin permeability of OXB, thus limiting harmful side effects.

The invention provides lipid carrier gel with a nano structure as well as a preparation method and application of the lipid carrier gel, and relates to the technical field of sunscreen products. The lipid carrier gel with the nanostructure comprises a lipid carrier dispersion with the nanostructure and a gel matrix, wherein the nanostructure lipid carrier dispersion comprises a lipid material, a composite sunscreen active component, a natural sunscreen synergist, an emulsifier, a co-emulsifier and water; wherein the composite sunscreen active component is prepared from ethyl hexyl triazinone, diethylamino hydroxybenzoyl hexyl benzoate and bis-ethyl hexyloxyphenol methoxyphenyl triazine; the natural sunscreen synergist is prepared from rutin and ferulic acid. According to the lipid carrier gel with the nanostructure, three selected high-efficiency and light-stable chemical sun-screening agents and two natural plant synergists are compounded and encapsulated by using an NLC technology, and finally, the sun-screening gel which is high in sun-screening efficiency, good in light stability, low in skin permeability and comfortable to use is obtained.

The invention relates to an oxidation-resistant antistatic PA plastic and a preparation method thereof, and belongs to the technical field of high polymer materials. The oxidation-resistant antistatic PA plastic comprises the following components in parts by weight: 70-90 parts of PA resin, 25-35 parts of glass fiber, 1-5 parts of a modified antistatic agent, 1-5 parts of a modified antioxidant, 1-3 parts of a compatilizer, 5-10 parts of a flexibilizer and 1-3 parts of a lubricant, positive ions of a quaternary ammonium salt compound in the modified antistatic agent are neutralized with negative charges on the surface of the material, the quaternary ammonium salt compound also serves as a conducting medium and adsorbs negatively charged bacteria, epoxy groups of glycidyl methacrylate react with PA hydroxyl groups, and the toughness of the material is improved; nitrogen atoms in the modified antioxidant capture free radicals and terminate chain reaction through lone pair electrons, carbonyl in hydroxybenzophenone and benzene rings form hydrogen bonds, and ultraviolet rays are absorbed; the antioxidant antistatic PA plastic prepared by the invention not only has a good antistatic effect, but also has excellent antioxidant and antibacterial effects.

This invention discloses an anti-corrosion coating containing graphitized carbon-coated zinc powder and its preparation method. The anti-corrosion coating containing graphitized carbon-coated zinc powder comprises the following raw materials in parts by weight: 60-70 parts epoxy resin, 14-18 parts graphitized carbon-coated zinc powder, 6-8 parts functionalized magnesium hydroxide, 5-6 parts phosphorus-silicon flame-retardant curing agent, 3-4 parts diethylenetriamine, 7-9 parts glycidyl butyl ether, and 10-14 parts acetone. The graphitized carbon-coated zinc powder is obtained by coating zinc powder surface with polyvinylpyrrolidone as a carbon source and then carbonizing at high temperature; the functionalized magnesium hydroxide is obtained by reacting magnesium hydroxide surface-treated with KH550 with oxybenzone; the phosphorus-silicon flame-retardant curing agent is obtained by reacting tetramethyldivinyldisiloxane and diethyl phosphite, followed by reaction with 1,3-propanediamine. These improvements endow the coating with excellent anti-corrosion, flame-retardant, and weather-resistant properties.