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US 11,433,015 B2Granted
Personal care compositions comprising anti-dandruff agents
AssigneeThe Procter & Gamble Company
InventorsHiroshi Oh, Dorothy A. Hall, Steven Daryl Smith
Life of this patent
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Abstract
A personal care composition comprises a personal care adjunct ingredient, an anti-dandruff agent, and cationic co-polymer disposed on an outer surface of the anti-dandruff agent. The cationic co-polymer has a viscosity of at least 0.09 poise and comprises monomers selected from the group consisting of acrylamide (“AAM”), dimethyl acrylamide (“DMAA”), acrylamidopropyl trimethylamonium chloride (“APTAC”), methacrylamidopropyl trimethylammonium chloride (“MAPTAC”), and combinations thereof.
Claims3
A personal care composition comprising
- a personal care adjunct ingredient selected from the group consisting of anionic surfactant, nonionic surfactant, cationic surfactant, a silicone material and mixtures thereof an anti-dandruff agent wherein the anti-dandruff agent is zinc pyrithione present in amount of 1% and having a volume weighted median particle size of from about 0.2 to about 60 microns cationic copolymer coated on an outer surface of zinc pyrithione wherein said cationic co-polymer is formed from the monomers acrylamide and [3-(acryloyl amino)propyl]trimethylammonium chloride and the ratio of monomers acrylamide and [3-(acryloyl amino)propyl]trimethylammonium chloride is 40/60 and the cationic copolymer is present is present in an amount of from about 0.01% to about 6%, by weight of the zinc pyrithione.
Dependencies are inferred from the claim text.