3 results about "Sunscreening Agents" patented technology

The invention relates to a water-soluble ultraviolet absorbent 4-disubstituted aminobenzyl subunit camphorsulfonic acid and a synthesis method and application thereof, and the synthesis method comprises the following steps: in a toluene-methanol mixed solvent, carrying out heating reflux reaction on camphorsulfonic acid and 2 equivalent weight of sodium methoxide, and after enolation conversion is completed, carrying out reduced pressure distillation to obtain the 4-disubstituted aminobenzyl subunit camphorsulfonic acid. Slowly dropwise adding a corresponding 4-disubstituted aminobenzaldehyde solution with the molar weight equal to that of camphorsulfonic acid, continuously heating and stirring to react for 6-12 hours, adding water to terminate the reaction, acidifying the reaction solution by using hydrochloric acid or sulfonic acid type cation exchange resin, separating to remove methylbenzene, adjusting the pH value of a water phase to about 6.5, performing rotary evaporation dehydration under reduced pressure, and extracting a crude product by using a conventional method; a target product can be obtained through column chromatography purification, and the target product not only has water solubility, but also has the characteristic of absorbing UVA and UVB ultraviolet light at the same time; the composition can be applied to sun-screening agent products, cosmetics or home care products, and also can be applied to various industrial products such as paint, varnish, plastics, textiles and rubber to improve the light resistance of the industrial products.

The invention relates to the field of spray sun-screening agent production, and discloses a filling device for spray sun-screening agent production, which comprises a filling component, the filling component comprises a fixed bracket, a movable bracket I is slidably arranged on the fixed bracket along the vertical direction, and a movable bracket II is slidably arranged on the movable bracket I along the vertical direction; two driving parts are arranged on the second movable support, a second three-way pipe is arranged between the output ends of the two driving parts, a filling part is arranged at the remaining connector of the second three-way pipe and comprises a filling pipe which is vertically arranged and connected with the second three-way pipe, and the filling pipe is sleeved with a sealing ring; a second spring is arranged between the sealing ring and an external step arranged at the upper end of the filling pipe, a limiting ring located below the sealing ring is arranged outside the filling pipe, an air hole is formed in the end face of the sealing ring in a penetrating mode, a third one-way valve is arranged in the air hole, and the third one-way valve is used for enabling air in the air hole to flow upwards in a one-way mode.

According to an embodiment of the present application, a cosmetic composition for UV protection is provided. The cosmetic composition comprises: an aqueous phase comprising a first UV-blocking agent; and an oil phase comprising a second UV-blocking agent and an oil gelling agent, wherein the oil phase is encapsulated and dispersed in the aqueous phase, and the oil gelling agent may comprise polyamide-3. According to embodiments of the present application, due to the use of an oil gelling agent, the oil phase can be encapsulated and dispersed in the aqueous phase. By using polyamide-3 as the oil gelling agent, the cosmetic composition can provide a transparent formulation and exhibit excellent formulation stability, feeling of use, and UV protection efficacy.