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US 7,744,945 B2Granted
Method of tablet enrobing
AssigneeBioprogress Technology International, Inc.
InventorsStephen Ronald Kessel, Ian David Povey, Edward Zbygniew Nowak
Life of this patent
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Abstract
An ingestible tablet (10), e.g. of a medicament, is enrobed to produce a tamper-evident coating by vacuum forming a film (40, 46) of material, preferably hydroxypropyl methyl cellulose, onto the surface of the tablet.
Claims8
A method of enrobing a tablet comprising the steps of:
- providing a tablet in a first fixed position;
- providing a thermoformable film;
- heating the thermoformable film to a heat-softened deformable condition;
- at the first fixed position, moving the thermoformable film by vacuum directly onto the contours of a portion of the tablet while maintaining the tablet in the first fixed position;
- at a second fixed position, moving the thermoformable film by vacuum directly onto the contours of another portion of the tablet while maintaining the tablet in the second fixed position,
- thereby forming a skin-tight coating on the tablet.
3 more elements
Dependencies are inferred from the claim text.