Adhesive patch to oral cavity having improved stability and usability
AssigneeLG Household & Health Care Ltd.
InventorsYong-Beom Jeong, Seong-Eun Bang, Jae-Hyun Ahn
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Abstract
The present disclosure provides a patch which is attached to a tooth or oral mucous membrane and releases an active ingredient to a portion attached, in which the patch comprises a drug layer having an adhesive surface attached to the tooth or oral mucous membrane and a backing layer laminated on the drug layer, and comprises at least one reticular structure inside the drug layer, and is divided into at least 2 drug layers at the boundary of or by the reticular structure. In particular, the patch have a restricted extensibility.
Claims14
A patch for applying to a tooth or oral mucosa, comprising a drug layer having an adhesive surface and a backing layer laminated to the drug layer,
- wherein the drug layer includes at least one reticular structure inside the drug layer, so the drug layer is divided into at least two drug layers by the reticular structure or at the boundary of the reticular structure, and a first drug layer has a 5 to 50% of thickness of the total thickness of the drug layer based on a longitudinal section of the patch,
- wherein the patch releases an active ingredient to an attached site,
- wherein the patch has a restricted extensibility, and
- wherein the patch has a Young's modulus of about 65 MPa or more, a strain at break of about 40% or less, and/or a strain at yield of about 25% or less.
Dependencies are inferred from the claim text.