Ultrasonic control of crystallisation
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsXavier Garijo, Renoo Avinash Blindt, Maria Patrick
Life of this patent
Estimating the term…
Abstract
A method of inducing solidification in a fluid composition comprising a cosmetic active, a crystalline organic structurant and a carrier, comprising exposing the fluid composition to ultrasound or converting the composition to a soft solid. A cosmetic stick in the form of a soft solid or firm stick comprising a cosmetic active, a crystalline organic structurant and a carrier in which the organic structurant is present in domains that are deficient in the cosmetic active, such as in particular an antiperspirant or deodorant active.
Claims29
A method of inducing solidification in a fluid composition comprising crystalline organic structurant, comprising exposing the fluid composition to ultrasound.
Use of ultrasound to induce solidification in a fluid composition comprising an organic crystalline structurant, a cosmetic active and a water-immiscible carrier.
A cosmetic composition comprising a cosmetic active suspended in a carrier fluid containing a crystalline organic structurant characterised in that the structurant is present in the form of domains that are deficient in the cosmetic active.
A cosmetic stick composition for topical application to the human skin comprising a suspended active which comprises a non-carbon element and a hydrophobic carbon containing matrix, characterised in that when the stick is analysed by cryo scanning microscopy techniques, the active generates a characteristic peak from both the non-carbon active element and the carbon containing hydrophobic matrix, and the ratio of the size of the non-carbon active peak to carbon peak in the scanning micrograph is higher than when the same composition of stick is made by melt casting techniques.
Dependencies are inferred from the claim text.