Antiperspirant/deodorant with alkylated polyvinylpyrrolidone
US9707171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Dec 11, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/874
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An antiperspirant/deodorant liquid composition comprising a solvent, an antiperspirant and/or deodorant ingredient, a fragrance, and an alkylated polyvinylpyrrolidone, wherein the alkylated polyvinylpyrrolidone is soluble or dispersible in the composition. The alkylated polyvinylpyrrolidone is capable of forming a film when the solvent is allowed to evaporate such that the film limits the release of the fragrance. Fragrance is released when the film is exposed to perspiration. The alkylated polyvinylpyrrolidone overcomes the problem with other film forming polymers that do not form stable films in the presence of an antiperspirant and/or deodorant ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.