High sunscreen efficiency water-in-oil emulsion

Details High sunscreen efficiency water-in-oil emulsion High sunscreen efficiency water-in-oil emulsion

A - Human Necessities

61

K

A61K 8/893 (2006.01)

Patent

CA 2629711

The present invention relates to highly stable water-in-oil sunscreen emulsions that provide a high sunscreen efficiency ("SE") having a sun protection factor ("SPF") of X, where X is at least about 15, and having a sunscreen efficiency ("SE") of at least 2, preferably at least 3, where SE is the ratio of SPF over the total weight percentage of sunscreen actives based on the total weight of the composition. The emulsions of the present invention provide photoprotection for the period corresponding to the labeled SPF throughout the period of exposure to natural sunlight and comprises (i) at least one sunscreen active and (ii) an alkyl dimethicone copolyol emulsifier in which the water-soluble, alkyl-soluble and silicone-soluble groups of the dimethicone copolyol are in specific ratios to each other. Preferably, the high SE water-in-oil emulsion comprises both a UV-A sunscreen and UV-B sunscreen. More preferably, the combination of sunscreen actives is photostable.

La présente invention concerne des émulsion écran solaire d~eau dans l~huile de grande stabilité conférant une grande efficacité d~écran solaire (« EES ») ayant un indice de protection solaire (« IPS ») X, X valant au moins environ 15, et ayant une efficacité d~écran solaire (« EES ») d~au moins 2, de préférence d~au moins 3, EES étant le rapport de l~IPS sur le pourcentage total en poids des substances actives sur la base du poids total de la composition. Les émulsions de la présente invention confèrent une photoprotection sur la période correspondant à l~IPS indiqué tout au long de la période d~exposition au rayons du soleil et comprennent (i) au moins un écran solaire actif et (ii) un émulsifiant de type alkyldiméthiconecopolyol, les groupes hydrosolubles, alkyl-solubles et silicone-solubles du diméthiconecopolyol étant dans des rapports spécifiques entre eux. De préférence, l~émulsion d~eau dans l~huile de grande EES comprend tant un écran solaire anti-UV-A qu~un écran solaire anti-UV-B. Mieux encore, la combinaison de substances actives écran solaire sont photostables.

Affiliated with

Also associated with

Rating

High sunscreen efficiency water-in-oil emulsion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High sunscreen efficiency water-in-oil emulsion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High sunscreen efficiency water-in-oil emulsion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1708725