Photoprotective compositions and films, and a preparation method

• Main Authors: LUCET-LEVANNIER KARINE, SIMONNET JEAN-THIERRY, LION BERTRAND
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2012
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

The present invention provides a photoprotective composition, in particular a cosmetic composition, including particles of photonic material in particular having a polymeric multilayer interference structure, at least two layers of said structure comprising an amphiphilic polymer. The invention provides a method of photoprotecting a material against solar UV radiation, the method consisting in treating said material with a photoprotective composition including particles of photonic material in particular having a polymeric multilayer interference structure, at least two layere of said structure comprising an amphiphilic polymer or integrating at least said composition into said material. Said material may in particular be selected from inks, paints, glasses, textiles, papers and polymers. The invention also provides a film that photoprotects against solar UV radiation, the film including a photonic material in particular having a multilayer interference structure screening solar UV radiation, wherein at least