US 11,701,319 B2
Rheofluidifying concentrated foaming composition and uses of same, in particular for body hygiene
Marie-Agnès Laurent, Bretigny sur Orge (FR); and Estelle Bouvet, Le Mans (FR)
Assigned to LABORATOIRES DE BIOLOGIE VEGETALE YVES ROCHER, La Gacilly (FR)
Appl. No. 16/314,604
Filed by LABORATOIRES DE BIOLOGIE VEGETALE YVES ROCHER, La Gacilly (FR)
PCT Filed Jun. 30, 2017, PCT No. PCT/FR2017/051776
§ 371(c)(1), (2) Date Dec. 31, 2018,
PCT Pub. No. WO2018/002557, PCT Pub. Date Jan. 4, 2018.
Claims priority of application No. 1656329 (FR), filed on Jul. 1, 2016.
Prior Publication US 2019/0314258 A1, Oct. 17, 2019
Int. Cl. A61K 8/60 (2006.01); A61K 8/02 (2006.01); A61K 8/04 (2006.01); A61K 8/41 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61K 8/55 (2006.01); A61Q 5/02 (2006.01); A61Q 19/10 (2006.01)
CPC A61K 8/604 (2013.01) [A61K 8/0295 (2013.01); A61K 8/042 (2013.01); A61K 8/416 (2013.01); A61K 8/442 (2013.01); A61K 8/463 (2013.01); A61K 8/55 (2013.01); A61Q 5/02 (2013.01); A61Q 19/10 (2013.01); A61K 2800/30 (2013.01); A61K 2800/596 (2013.01)] 13 Claims
 
1. A shear-thinning surfactant composition structured into planar lamellar phases consisting of:
a) at least one anionic surfactant,
b) at least one compound chosen from amphoteric surfactants and nonionic surfactants,
c) optionally fragrance,
d) an acid or base for adjusting the pH, and
e) water,
in which the total active material of said surfactants is from 35% to 60% by weight, with respect to the total weight of said composition,
in which the ratio of anionic surfactant is from 0.4 to 0.8, the ratio of amphoteric surfactant is from 0.2 to 0.5 and the ratio of nonionic surfactant is from 0.0 to 0.1, said ratio being the ratio of the percentage by weight of active material of said surfactant in said composition to the percentage by weight of total active material of said surfactants in said composition,
the pH of the composition being between 4 and 8,
said at least one anionic surfactant is ammonium lauryl sulfate, and the shear-thinning surfactant composition is a sprayable gel,
wherein the fragrance, when present, ranges from 0.05% to 10% by weight, with respect to the total weight of said composition, and
in which water is from 40% to 65% by weight, with respect to the total weight of said composition.