Multilayer films for delivery of flavor
US9161890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jun 30, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/244
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oral care composition having enhanced flavor release comprising an orally acceptable carrier containing a first flavor and a multilayer film for extended or delayed flavor release, the multilayer film including at least a center layer containing a second flavor, the center layer positioned between two outer surface layers, each surface layer including a release modulating agent, the first and second flavor being the same or different. The film is adapted to adhere to an oral cavity surface and the outer surface layers may comprise a mucoadhesive polymer, e.g. carboxy polymethylene, polycarbophil or polyvinyl pyrrolidone, and a film forming polymer, eg. hydroxypropylmethyl cellulose (HPMC). Suitable release modulating agents include HPMC and polyvinyl acetate. The carrier may be a toothpaste or mouthwash.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.