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US 11,998,624 B2Granted
Anhydrous antiperspirant aerosol composition
AssigneeConopco, Inc.
InventorsAnne-Laure Sophie Ferry, Robert Edward Marriott, Louise Jannette Roberts
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Abstract
Anhydrous antiperspirant aerosol compositions comprising antiperspirant active, urea, non-ethanolic carrier oil and volatile propellant, said compositions delivering good perspiration reduction and humectancy, without valve blockage of associated hardware.
Claims14
A base composition for an antiperspirant aerosol comprising:
- a) less than 0.1% by weight of free water,
- b) 20 to 50% by weight of antiperspirant active that is an aluminium halohydrate salt,
- c) 2 to 15% by weight of urea, and
- d) 35 to 65% by weight of a non-ethanolic carrier oil selected from the group consisting of silicone oils, alkyl ether oils, triglycerides, ester oils, and mixtures thereof,
- wherein the non-ethanolic carrier oil is a water insoluble organic material that is liquid at ° C.,
- wherein the base composition is free of ethanol and further wherein the base composition has a viscosity of less than or equal to 10000 cPs (mPa·s) measured at ° C. using a Brookfield Viscometer 24 hours after sample preparation, using a TA spindle, at 10 rpm, and further wherein urea possesses a % change in mass value measured at 37° C. and 90% relative humidity using Dynamic Vapour Sorption instrument greater than or equal to the value for PEG-4.
3 more elements
Dependencies are inferred from the claim text.