Method of making an anhydrous liquid antiperspirant composition
US9585825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Oct 1, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/58
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of producing an anhydrous antiperspirant composition comprising (a) providing a mixture of at least one antiperspirant active including a metal salt, and an anhydrous carrier for the at least one antiperspirant active in which the at least one antiperspirant active is dissolved, the carrier comprising a eutectic mixture of at least one basic compound selected from a basic amide and a basic amine and at least one member chosen from a cation and zwitterion; and (b) heating the mixture to form a stabilized eutectic system of the at least one antiperspirant active and the anhydrous carrier, and wherein the at least one antiperspirant active, the at least one basic compound and the at least one member chosen from a cation and zwitterion form a ternary eutectic system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.