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US 2015/0306230 A1Published application
Drug delivery vehicles comprising cellulose derivatives, starch derivatives, and combinations thereof
AssigneeCelanese Acetate LLC
InventorsMichael Combs, Wendy Bisset, Lizbeth Milward, Adam Larkin, Naresh Budhavaram
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Abstract
A drug delivery vehicle (e.g., a patch, a pill, an intravaginal ring, and an implant) may include a polymer matrix comprising a plasticizer and at least one selected from the group consisting of: a cellulose ester, a cellulose ether, a starch ester, a starch ether, and a combination thereof. A drug may be dispersed in the polymer matrix, in another portion of the drug delivery vehicle, or both.
Claims20
A drug delivery vehicle comprising:
- an intermediate layer comprising a drug disposed between an adhesive and a backing, wherein one of the intermediate layer and the adhesive are formed by a polymeric matrix that comprises a plasticizer and at least one selected from the group consisting of:
- a cellulose ester, a cellulose ether, a starch ester, a starch ether, and a combination thereof.
A drug delivery vehicle comprising:
- a core polymer matrix comprising a drug and encompassed by a skin polymer matrix, wherein the core polymer matrix or the skin polymer matrix comprises a plasticizer and at least one selected from the group consisting of:
- a cellulose ester, a cellulose ether, a starch ester, a starch ether, and a combination thereof.
A drug delivery vehicle comprising:
- a bandage with a polymer matrix disposed thereon, wherein the polymer matrix comprises a drug, a plasticizer, and at least one selected from the group consisting of:
- a cellulose ester, a cellulose ether, a starch ester, a starch ether, and a combination thereof.
Dependencies are inferred from the claim text.