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AssigneeTata Consultancy Services Limited
InventorsAuhin Kumar Maparu, Ashish Masarkar, Beena Rai
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Nanomaterials are an important class of materials for sunscreens. Conventional metal oxide nanoparticles are toxic in nature and leave white patches on skin after application. This disclosure provides a sunscreen composition containing biodegradable antimicrobial polymer nanoparticles as UV filter. The sunscreen composition comprising chitosan nanoparticles, at least one flavoring agent, at least one coloring agent, at least one stabilizer, and at least one preservative, in a defined form, wherein size of the chitosan nanoparticles is ranging from 200 to 900 nm. The size of the chitosan nanoparticles ranging from 200 to 400 nm for air medium, 500 to 700 nm for water medium and 700 to 900 nm for ethanol medium. The chitosan polymer is derived from chitin, a glucosamine polymer. The sunscreen composition is available in the defined form selected from a group consisting of a skin cream, a skin lotion, a powder, a gel, and a sprayable liquid.
A sunscreen composition comprising chitosan nanoparticles as UV filter, at least one flavoring agent, at least one coloring agent, at least one stabilizer, and at least one preservative, wherein the sunscreen composition is present in a defined form and size of the chitosan nanoparticles ranging from 200 to 900 nm, wherein the size of the chitosan nanoparticles ranging from 200 to 400 nm for air medium, 500 to 700 nm for water medium and 700 to 900 nm for ethanol medium, wherein the chitosan nanoparticles provide attenuation from ultraviolet (UV) radiation in a wavelength range of 290-400 nm.
Dependencies are inferred from the claim text.