STRUCTURED RHEOLOGICAL SOLID PERSONAL CARE COMPOSITION

Organization Name

The Procter & Gamble Company

Inventor(s)

Matthew Lawrence Lynch of Mariemont OH (US)

Brandon Philip Illie of Felicity OH (US)

Taotao Zhu of West Chester OH (US)

Jamie Lynn Dria of Deerfield Township OH (US)

Tinlee Lin of Cincinnati OH (US)

Baltej Ludher of Cincinnati OH (US)

Greg Veintimilla of Maineville OH (US)

Corrie Moll of Cincinnati OH (US)

STRUCTURED RHEOLOGICAL SOLID PERSONAL CARE COMPOSITION

This abstract first appeared for US patent application 18888534 titled 'STRUCTURED RHEOLOGICAL SOLID PERSONAL CARE COMPOSITION

Original Abstract Submitted

A rheological solid personal care composition comprises a crystallizing agent, a suspension agent, an insoluble active, and an aqueous phase. A process for the manufacture of a rheological solid composition comprises the steps of: provision and heat up of an aqueous solution of sodium chloride, and sodium hydroxide; addition of an emulsifier, preferably palmitic acid, in order to obtain an emulsifier main mix, preferably a sodium palmitate soap main mix; addition of a suspension agent, preferably xanthan gum and glycerin, to the emulsifier main mix; addition of an insoluble active premix to the emulsifier main mix to obtain a blend, the insoluble active premix preferably being a petrolatum-based premix of topical drug actives, the topical drug active preferably selected from the group of: menthol, nutmeg, camphor, eucalyptus, cedar leaf, thymol, and any combinations thereof; cool down of the blend in order to form a crystalline structure of the rheological solid composition; optionally, addition of a hygroscopic stabilizer to the blend in order to stabilize the crystalline structure, the hygroscopic stabilizer preferably being sodium lactate.