Patent Picks—Sugar Sunscreen, UV Microcapsules, ‘Rugby Ball’ Particles and More
By: Rachel L. Grabenhofer
Posted: January 31, 2012
Chosen biweekly for their relevance to personal care, Patent Picks are taken from publicly available sources. This edition features technologies related to sun care and UV protection, as well as reversing the effects of UV damage.
Use of compounds resulting from a sugar polyol or from a dehydrogenated sugar polyol derivative as a UV-screening agent; anti-sun compositions containing the same; and novel compounds
WIPO Patent Application WO/2012/010554
Publication date: Jan. 26, 2012
Assignee: L'Oréal, R Hervé and E Dimotakis
This invention relates to the cosmetic use of compounds resulting from a sugar polyol or from a dehydrogenated sugar polyol derivative as an agent for screening out UV radiation.The object of this patent was to find novel UV-screening agents that can be applied to the surface of the skin and/or hair that are more stable than standard UV-screening agents, with respect to factors during use such as water, washing, bathing, swimming, sand, perspiration, sebum and rubbing; that have a good solubility in the anti-sun formulation; and that are environmentally safe. The novel compounds disclosed resulting from a sugar polyol or from a dehydrogenated sugar polyol derivative achieve this objective.
Microcapsules with UV filter activity and process for producing them
US Patent Application 20120022265
Publication date: Jan. 26, 2012
Inventor: K Berg-Schultz
Described by this patent are microcapsules and a process for producing microcapsules with UV filter activity. Said microcapsules contain at least one type of crosslinkable chromophore with UV-A and/or UV-B and/or UV-C filter activity, and optionally at least one type of crosslinkable monomer that does not have UV activity, that are subjected to a crosslinking reaction in the absence of non-crosslinkable chromophores with UV filter activity.