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US 2022/0054426 A1Published application
Dual lane coating
AssigneeAquestive Therapeutics, Inc.
InventorBeuford A. Bogue
Life of this patent
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Abstract
The present invention relates to methods and apparatuses for forming an active-containing film product, while significantly reducing the amount of wasted active material. The resulting product is an active-containing film product that meets the user's predetermined criteria of physical properties and is suitable for use.
Claims21
-30. (canceled)
A method of forming an active-containing film comprising the steps of:
- a. providing a first batch of a film forming matrix comprising at least one polymer;
- b. providing a second batch of film forming matrix comprising at least one polymer and an active;
- c. applying a layer of said film forming matrix from said first batch onto a substrate and forming a film from said film forming matrix from said first batch;
- d. optionally, adjusting at least one processing parameter;
- and
- e. applying a layer of said film forming matrix from said second batch onto said substrate and forming an active-containing film from said film forming matrix from said second batch.
3 more elements
A film forming apparatus comprising:
- a. a substrate;
- b. an apparatus to feed a first batch of film forming matrix to a first lane on said substrate;
- c. an apparatus to feed a second batch of film forming matrix to a second lane on said substrate;
- and
- d. a drying apparatus.
2 more elements
Dependencies are inferred from the claim text.