Oral care compositions with reduced surface staining
US10045927B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Dec 10, 2014 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Dec 10, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Surface staining can be minimized or eliminated by providing an oral care composition comprising a first film comprising a pigment; and optionally a second film; wherein the first film has a dissolution rate in aqueous media that is inversely proportional to its thickness, wherein the first film is in the form of a particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.