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Patent Pick: Layered Flavor Delivery

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Patent Picks are chosen by the editors from publicly available sources. Today's pick is a multilayered film to deliver flavor in applications such as toothpaste or mouthwash.

Multilayered films for enhanced flavor delivery
U.S. Patent 9161890
Publication date: Oct. 20, 2015
Assignee: Colgate-Palmolive Company

Disclosed in this patent are oral care compositions, e.g., toothpaste or mouthwash, designed for enhanced flavor release.

The orally acceptable carriers in said compositions contain a first flavor and a multilayered film for extended or delayed release. The film includes at least one center layer containing a second flavor, the same or different from the first, positioned between two outer layers each of which include a release-modulating agent.

Adapted to adhere to oral cavity surfaces, the film's outer layers may comprise a mucoadhesive polymer such as carboxy polymethylene; polycarbophil; or polyvinyl pyrrolidone; and a film-forming polymer such as hydroxypropylmethyl cellulose (HPMC).

Suitable release-modulating agents include HPMC and polyvinyl acetate.

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