INSTITUTO DE PESQUISAS TECNOLÓGICAS DO ESTADO DE SÃO PAULO S.A. - IPT;NATURA COSMÉTICOS S.A.
发明人:
ADRIANO MARIM DE OLIVERIA,JULIANA FLOR,KARINA MORETTI DA SILVA,KLEBER LANIGRA GUIMARÃES,MARCOS ROGÉRIO SPINA,MARIA HELENA AMBRASIO ZANIN,NATÁLIA NETO PEREIRA CERIZE,PRISCILA CAROLLO MONCAYO,SIMONE AND
申请号：
BR102015032897
公开号：
BR102015032897A2
申请日:
2015.12.29
申请国别(地区):
BR
年份:
2017
代理人:
摘要：
The production process of a high-concentration organic polymeric amphiphilic blend thin film nanostructure for application against ultraviolet radiation, pertaining to the cosmetics and pharmaceutical preparations of active properties characterized by special physical forms, refers to nanostructured nanoparticles production process, acting as ultraviolet radiation filter, formed by a thin film of polymeric amphiphilic blend with high concentration of encapsulated organic nucleus as ultraviolet radiation filter. Due to their size scale, composition and morphology, these nanoparticles can be applied in cosmetic formulations for sunscreen preparation, or in any other formulation that is of interest in solar radiation protection. The process involves three phases: organic, aqueous and aqueous dilution phase, where in the organic phase organic solvents such as ketones, esters and alcohols are used, or a combination of two or more of them, where hydrophobic polymer is individually added. co, the organic content of uv radiation chemical agents, the hydrophilic copolymer, and a nonionic surfactant； the aqueous phase is prepared with distilled water and surfactant of the type sodium lauryl ether sulfate or cocoamidopropyl betaine or coconut fatty acid diethanolamide or sorbitan 80 laurate or cetyl phosphate； and the dilution phase is prepared with distilled water and surfactants such as sodium lauryl ether sulfate, or cocoamidopropyl betaine or coconut fatty acid diethanolamide or sorbitan laurate 80 eo. The formed shell is a blend of a hydrophobic polymer of the polyester, polycarbonate, acrylate, methacrylate type, acrylate, polyhydroxybutyrate, vinyl, styrenic, acrylamide, methacrylamide derivatives, or polymers of different molecular weights of 10 kda or 45 kda or 90 kda mixed with a hydrophilic copolymer of the polyether, polyacid, polyol, polyoxyethylene or polyoxypropylene type, and the constitution of the nucleus the combination of chemical ultraviolet protection age
