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1. WO2020108885 - NON-ALUMINIUM ANTIPERSPIRANT COMPOSITIONS

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[ EN ]

Claims

1. An antiperspirant composition comprising ethanol, amphiphilic material, volatile

silicone having a vapour pressure of greater than 1 Pa at 25°C and a humectant, the amphiphilic material being a mixture consisting of glycerol monolaurate and isostearyl alcohol at a ratio of from 25: 75 to 45: 55 by weight wherein:

(i) the ratio of amphiphilic material to (ethanol + volatile silicone) is from 1 :9 to 2: 3; by weight

(ii) the ratio of volatile silicone to (ethanol + amphiphilic material) is from 1 :10 to

1 1 :9; by weight

(iii) the ratio of ethanol to (amphiphilic material + volatile silicone) is from 3:7 to 3: 2 by weight and

(iv) the total amount of humectant in the composition is from 0.1 to 10% by weight, excluding any propellant that may be present.

2. A composition according to claim 1 , wherein the composition is an aerosol

composition comprising a propellant.

3. A composition according to claim 2, wherein the propellant is dimethyl ether (DME) or a hydrocarbon.

4. A composition according to claim 1 or claim 2, wherein the propellant is present at from 30 to 90% by weight of the composition.

5. A composition according to any of preceding claims, wherein the volatile silicone comprises greater than 90% by weight of siloxanes selected from the group consisting of hexamethyldisiloxane, octamethyltrisiiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane and decamethylcyclopentasiloxane.

6. A composition according to claim 1 1 , wherein the volatile silicone comprises greater than 90% by weight of siloxanes selected from the group consisting of

hexamethyldisiloxane, octamethyltrisiiloxane, decamethyltetrasiloxane and decamethylcyclopentasiloxane.

7. A composition according to any of preceding claims, which is free from aluminium or zirconium antiperspirant salts.

8. A composition according to any of preceding claims, wherein the humectant has multiple hydroxyl groups and/or amine groups.

9. A composition according to claim 14, wherein the humectant is selected from glycerol, 2-hydroxyethyl urea (HEU) and propylene glycol (PG).