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US 2007/0178299 A1Published application
Water-soluble composition and structures, and methods of making and using the same
OwnerAndrew Verrallinventor
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Abstract
A plasticized water-soluble composition and structure (e.g., film) including a water-soluble polymer, a hydrophilic nanoscale particulate, a plasticizer, and, optionally, one or more auxiliary agents such as a crosslinking agent for the polymer, plasticizers, surfactants, extenders, and release agents, is disclosed. Also disclosed are containers made from such compositions and films, and methods of making and using such items.
Claims23
A composition, comprising:
- a flexible, water-soluble, homogeneous film, said film comprising a water-soluble polymer, a hydrophilic nanoscale particulate, and a plasticizer.
In a plasticized water-soluble film container used for holding a liquid, the improvement comprising inclusion in the film of a hydrophilic nanoscale particulate.
A method comprising the steps of:
- confining a liquid with a flexible, water-soluble, homogeneous film, said film comprising a water-soluble polymer, a hydrophilic nanoscale particulate, and a plasticizer, and then
- contacting said film with water at a temperature sufficient to dissolve said film, thereby releasing said confined liquid.
Dependencies are inferred from the claim text.