Non-aluminium antiperspirant compositions

Patent metadata

Field	Value
Publication number	US-2022016002-A1
Application number	US-201917297836-A
Country	US
Kind code	A1
Filing date	Oct 23, 2019
Priority date	Nov 30, 2018
Publication date	Jan 20, 2022
Grant date	—

Abstract

An antiperspirant composition comprising ethanol, amphiphilic material, volatile silicone 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 the composition having good stability and skin care credentials.

First claim

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,
wherein the amphiphilic material is 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 11:9 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 , wherein the propellant is from 30 to 90% by weight of the composition.

5 . A composition according to claim 1 , 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 , wherein the volatile silicone comprises greater than 90% by weight of siloxanes selected from the group consisting of hexamethyldisiloxane, octamethyltrisiiloxane, decamethyltetrasiloxane and decamethylcy cl op entasil oxane.

7 . A composition according to claim 1 , which is free from aluminium or zirconium antiperspirant salts.

8 . A composition according to claim 1 , wherein the humectant has multiple hydroxyl groups and/or amine groups.

9 . A composition according to claim 1 , wherein the humectant is selected from glycerol, 2-hydroxyethyl urea (HEU) and propylene glycol (PG).

Assignees

• Conopco Inc Dba Unilever

Inventors

• Waterfield Philip Christopher
• Zdravkova Aneliya Nikolova

Classifications

• A61Q15/00 Primary

  Anti-perspirants or body deodorants (deodorisation of air A61L9/00) · CPC title

• A61K8/345

  containing more than one hydroxy group · CPC title

• A61K2800/591

  Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596 · CPC title

• A61K8/375

  the alcohol moiety containing more than one hydroxy group · CPC title

• A61K8/42

  Amides · CPC title