Anhydrous antiperspirant aerosol compositions
US-10117814-B2 · Nov 6, 2018 · US
Anhydrous antiperspirant compositions
US10398633B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10398633-B2 |
| Application number | US-201515520652-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 22, 2015 |
| Priority date | Oct 27, 2014 |
| Publication date | Sep 3, 2019 |
| Grant date | Sep 3, 2019 |
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- Title
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Abstract
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Anhydrous antiperspirant stick or soft solid composition comprising an antiperspirant active system, thickening agent, and non-aqueous carrier oil, characterized in that the particulate antiperspirant active system comprises an aluminium sesequichlorohydrate of formula Al2OH4.4Cl1.6 to Al2OH4.9Cl1.1 activated with a water soluble calcium salt.
First claim
Opening claim text (preview).
The invention claimed is: 1. An anhydrous antiperspirant stick or soft solid composition comprising an antiperspirant active system, thickening agent, and non-aqueous carrier oil, characterised in that the particulate antiperspirant active system is composed of a water soluble calcium salt, an amino acid and an aluminium sesquichlorohydrate of formula Al 2 (OH) 4.7 Cl 1.3 to Al 2 (OH) 4.9 Cl 1.1 heat activated with a water soluble calcium salt and an amino acid, wherein the aluminium sesquichlorohydrate in the antiperspirant active system has a molar ratio of calcium to aluminium of at least 1:20 and a molar ratio of amino acid to aluminium of at least 1:10 and wherein the particulate antiperspirant active system has a mean particle size (D50) of from 2 to 30 microns, wherein the antiperspirant active system is present in a concentration of 17.5% to 25%, by weight of the composition, and wherein the amino acid is glycine. 2. The composition according to claim 1 , wherein the aluminium sesquichlorohydrate in the antiperspirant active system has a Band III content of at least 40%. 3. The composition according to claim 1 , wherein the aluminium sesquichlorohydrate in the antiperspirant active system has a molar ratio of calcium to aluminium of at least 1:15 and the molar ratio of amino acid to aluminium of at least 1:4. 4. The composition according to claim 1 , wherein the water soluble calcium salt is calcium chloride. 5. The composition according to claim 1 , wherein the aluminium sesquichlorohydrate in the particulate antiperspirant active system has a Band III to Band II ratio of 5:1 or greater. 6. The composition according to claim 1 wherein the particulate antiperspirant active system has a mean particle size (D50) of from 2 to 10 microns. 7. The composition according to claim 1 wherein the composition is in the form of an anhydrous antiperspirant stick. 8. A method of manufacture of an antiperspirant composition according to claim 1 , wherein a solution of aluminium sesquichlorohydrate of formula Al 2 (OH) 4.7 Cl 1.3 to Al 2 (OH) 4.9 Cl 1.1 is heated with a water soluble calcium salt to achieve a Band III content of at least 40% before being spray dried to give a powder which is subsequently formulated with thickening agent and non-aqueous carrier oil to give a composition having a penetration force value of at least 500 gram-force, wherein both calcium and amino acid are present and the molar ratio of calcium to aluminium is at least 1:20 and the molar ratio of amino acid to aluminium is at least 1:10. 9. The method according to claim 8 , wherein the solution of aluminium sesquichlorohydrate of formula Al 2 (OH) 4.7 Cl 1.3 to Al 2 (OH) 4.9 Cl 1.1 is heated with a water soluble calcium salt and an amino acid to achieve a Band III content of at least 60% before it is spray dried. 10. The method according to claim 8 , wherein the water soluble calcium salt is calcium chloride.
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Classifications
Other properties not specified above · CPC title
Micrometer sized, i.e. from 1-100 micrometer · CPC title
Basic aluminium chlorides, e.g. polyaluminium chlorides · CPC title
- A61K8/26Primary
Aluminium; Compounds thereof · CPC title
Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof · CPC title
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- What does patent US10398633B2 cover?
- Anhydrous antiperspirant stick or soft solid composition comprising an antiperspirant active system, thickening agent, and non-aqueous carrier oil, characterized in that the particulate antiperspirant active system comprises an aluminium sesequichlorohydrate of formula Al2OH4.4Cl1.6 to Al2OH4.9Cl1.1 activated with a water soluble calcium salt.
- Who is the assignee on this patent?
- Conopco Inc
- What technology area does this patent fall under?
- Primary CPC classification A61K8/26. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 03 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).