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US 11,738,367 B2Granted
Films including a water-soluble layer and a vapor-deposited organic coating
AssigneeThe Procter & Gamble Company
InventorsEmily Charlotte Boswell, Srinivas Krishnaswamy Mirle, Vesselin Nikolov Shanov, Rachit Malik, Colin William McConnell
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Abstract
Films including a water-soluble layer and a vapor-deposited organic coating are disclosed. The films can optionally further include a vapor-deposited inorganic layer. The films exhibit enhanced barrier properties.
Claims18
A method of forming a soluble unit dose article comprising:
- forming a film by providing a first layer of water-soluble polymeric material and vapor depositing an organic coating to at least one surface of the first layer of water-soluble polymeric material to form a second layer, wherein the organic coating comprises a poly(p-xylylene) polymer;
- vapor depositing a third layer comprising an inorganic coating to at least one surface of the first layer of water-soluble polymeric material;
- wherein the inorganic coating comprises a plurality of microfractures;
- forming an open pouch from the film;
- filling the open pouch with a composition;
- and
- closing the open pouch.
4 more elements
Dependencies are inferred from the claim text.