US 12,226,505 B2
Compositions having enhanced deposition of surfactant-soluble anti-dandruff agents
Sumanth Narahari Jamadagni, West Chester, OH (US); Laurie Ellen Breyfogle, Milford, OH (US); Daniel Lawrence Custer, West Chester, OH (US); Eric Scott Johnson, Hamilton, OH (US); and Debora W. Chang, Mason, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 25, 2018, as Appl. No. 16/170,711.
Prior Publication US 2020/0129402 A1, Apr. 30, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/49 (2006.01); A61K 8/46 (2006.01); A61Q 5/00 (2006.01); A61Q 5/02 (2006.01)
CPC A61K 8/4926 (2013.01) [A61K 8/463 (2013.01); A61K 8/4946 (2013.01); A61Q 5/006 (2013.01); A61Q 5/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A hair care composition comprising:
a) one or more anionic surfactants, wherein the one or more anionic surfactants include from about 8% to about 25% of sodium deceth-n sulfate where n is between 0.5 to 3.5; or from about 8% to 13% by weight of one or more amino acid based anionic surfactant;
b) from about 0.01% to 10% of one or more surfactant-soluble agent wherein the surfactant-soluble agent is piroctone olamine;
c) wherein the composition has a fractional soluble agent concentration (a) of 0.5-1.0 wherein ‘a’ is defined as

OG Complex Work Unit Math
where C is the surfactant-soluble agent concentration, Csi are the surfactant concentrations and Ksi is the solubilization capacity of each type of surfactant wherein Ksi can be measured for any surfactant and surfactant-soluble agent combination and wherein a surfactant to surfactant-soluble agent concentration is 15:1 by weight, wherein the composition has a deposition efficiency of greater than or equal to 1.2x that of a deposition control composition.