US 7,485,316 B2
Wet-skin treatment compositions using specific gum and acrylate systems for enhanced rheology
Robert Sabin, Newtown, Conn. (US); Rosa Paredes, Shelton, Conn. (US); Philip Edward Miner, Newtown, Conn. (US); Stephen Roy Barrow, Trumbull, Conn. (US); and Jeffrey Scott Wolcheski, New Haven, Conn. (US)
Assigned to Unilever Home & Personal Care USA, division of Conopco, Inc., Greenwich, Conn. (US)
Filed on Jan. 14, 2005, as Appl. No. 11/36,442.
Prior Publication US 2006/0159649 A1, Jul. 20, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/02 (2006.01)
U.S. Cl. 424—401 13 Claims
 
1. A wet-skin treatment composition comprising:
a) an aqueous phase comprising water and a dispersion stabilizer capable of forming a network in the aqueous phase that immobilizes a dispersed structured oil phase;
 wherein said dispersion stabilizer comprises:
i) about 0.45% to about 0.5% by wt. acrylate polymer;
ii) from about 0.05 to about 0.3% by wt. at least one carbohydrate gum selected from the group consisting of xanthan gum, gum Arabic, guar gum and mixtures thereof; and
iii) about 0.1% by wt. preservative
 wherein ratio of acrylate to gum is 1:1 to 10:1; and
b) a structured oil phase comprising:
i) about 11% by wt. emollient oil,
ii) 0.75 to 3 % by wt. trihydroxystearin;
iii) about 0.01-45% of dispersed phase based on total structured oil phase, wherein said oil phase is dispersed in said aqueous phase to form an oil-in-water emulsion having a weight average oil droplet size of 5 to 1000 microns.