Controlled release compositions and methods of using
AssigneesKimberly-Clark Worldwide, Inc., Cellresin Technologies, LLC
InventorsWillard E. Wood, Ali Yahiaoui
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Abstract
Cyclodextrin compositions, including a hydrophobic carrier and a cyclodextrin complex, are formed and disposed on a variety of substrates using conditions that avoid substantial loss of the complexed compound from the cyclodextrin complex, even where the complexed compound is a gas a common ambient temperatures (e.g. 20° C.). Flexographic printing is particularly useful for disposing the cyclodextrin compositions on one or more substrates. Substrates treated with the cyclodextrin complexes are useful for subsequent release of the complexed compound.
Claims12
A treated laminate comprising a first substrate, a cyclodextrin composition coated on at least a portion of a surface of the first substrate, and a second substrate disposed over the coated cyclodextrin composition in contact with the cyclodextrin composition,
- the cyclodextrin composition comprising:
- a cyclodextrin inclusion complex comprising a cyclodextrin compound and an olefinic inhibitor;
- and a carrier comprising petrolatum or a petrolatum-like material and having a melting transition onset between about 23° C. and 40° C. and solubility in water of less than 1 wt % at 25° C.,
- wherein the first substrate is different from the second substrate, and the second substrate is solidified after contacting the cyclodextrin composition.
Dependencies are inferred from the claim text.