Coating apparatus – Edible base or coating type – With work drying – cooling – heating or noncoating gas contact
Patent
1995-08-15
1997-08-12
Warden, Jill
Coating apparatus
Edible base or coating type
With work drying, cooling, heating or noncoating gas contact
118 16, 118621, 118624, A61J 306
Patent
active
056560800
ABSTRACT:
A method of coating substrates of medicinal products with a dry powder includes the following steps: feeding the medicinal substrates onto a conveying belt (1); supplying the dry powder to a region (5) through which the substrates are to be conveyed; conveying the medicinal substrates on the conveying belt (1) through the region (5) with the conveying belt and/or the substrates maintained at a different electric potential from the dry powder, whereby the dry powder is attracted to the exposed surfaces of the substrates but is unable to reach the coated surfaces of the substrates in contact with the conveying belt, and treating the dry powder coatings to convert the powder into a fused film secured to the substrates.
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Grosvenor Martin Paul
Staniforth John Nicholas
Hoechst (UK) Limited
Ludlow Jan M.
Warden Jill
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