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US 2019/0133829 A1Published application
Dermal patch
AssigneeCarl Freudenberg KG
InventorsThomas Hofbauer, Daniela Beyer, Sandra Villing-Falusi
Life of this patent
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Abstract
A dermal patch includes: an open-cell foam layer; and an adhesive layer arranged thereon and intended for contact with skin. At least a side of the foam layer facing the adhesive layer has macropores whose cavities are spanned at least partially by a barrier layer formed from the foam layer.
Claims20
A dermal patch, comprising:
- an open-cell foam layer;
- and
- an adhesive layer arranged thereon and configured for contact with skin, wherein at least a side of the foam layer facing the adhesive layer has macropores whose cavities are spanned at least partially by a barrier layer formed from the foam layer.
A method for producing a dermal patch, comprising:
- producing and/or providing a foam layer which at least on one side has macropores, cavities of which are at least partially spanned by a barrier layer formed from the foam layer;
- applying an adhesive material and/or precursor compounds thereof to the at least one side of the foam layer comprising the barrier layer;
- and
- optionally curing the adhesive material and/or precursor compounds thereof to form an adhesive layer.
1 more element
Dependencies are inferred from the claim text.