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1. AU2003280390 - Method for producing coated pharmaceuticals and food supplements with concentration gradients in the coating thereof

Office Australia
Application Number 2003280390
Application Date 18.10.2003
Publication Number 2003280390
Publication Date 26.02.2004
Publication Kind A
IPC
A61K 9/28
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, lozenges or tablets
28Dragees; Coated pills or tablets
A23L 1/275
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
1Foods or foodstuffs; Their preparation or treatment
27Colouring or decolouring of foods
275Addition of dyes or pigments with or without optical brighteners
A23L 1/308
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
1Foods or foodstuffs; Their preparation or treatment
29Modifying nutritive qualities of foods; Dietetic products
307Reducing nutritive value; Dietetic products with reduced nutritive value
308Addition of substantially indigestible substances, e.g. dietary fibres
A61K 9/48
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
A61K 9/50
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
50Microcapsules
CPC
A23L 5/42
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
5Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
40Colouring or decolouring of foods
42Addition of dyes or pigments, e.g. in combination with optical brighteners
A23L 33/24
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
33Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
20Reducing nutritive value; Dietetic products with reduced nutritive value
21Addition of substantially indigestible substances, e.g. dietary fibres
24Cellulose or derivatives thereof
A23L 33/25
AHUMAN NECESSITIES
23FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A23B - A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT
33Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
20Reducing nutritive value; Dietetic products with reduced nutritive value
21Addition of substantially indigestible substances, e.g. dietary fibres
25Synthetic polymers, e.g. vinylic or acrylic polymers
A61K 9/2846
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, tablets, ; discs, rods
28Dragees; Coated pills or tablets ; , e.g. with film or compression coating
2806Coating materials
2833Organic macromolecular compounds
284obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
2846Poly(meth)acrylates
A61K 9/2866
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, tablets, ; discs, rods
28Dragees; Coated pills or tablets ; , e.g. with film or compression coating
2806Coating materials
2833Organic macromolecular compounds
286Polysaccharides, e.g. gums; Cyclodextrin
2866Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
A61K 9/2893
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
20Pills, tablets, ; discs, rods
28Dragees; Coated pills or tablets ; , e.g. with film or compression coating
2893Tablet coating processes
Applicants ROHM GMBH AND CO.KG
Inventors Meier, Christian
Petereit, Hans-Ulrich
Roth, Ema
Priority Data 102 60 919.5 20.12.2002 DE
Title
(EN) Method for producing coated pharmaceuticals and food supplements with concentration gradients in the coating thereof
Abstract
(EN)
The invention relates to a method for producing pharmaceuticals or parts thereof or food supplements or parts thereof, by coating substrates for pharmaceutical uses or for using as food supplements for humans or animals, with a film-forming coating agent mixed with at least one other substance suitable for the cited purposes. The film-forming coating agent and the other substance first constitute separate liquid, sprayable individual portions, and are sprayed by means of at least one spray device - which are provided, individually or together, with at least two separate nozzles for liquids, and have overlapping spray jets - in such a way that the individual portions sprayed out of the separate nozzles mix during the spraying process and the mixture forms a continuous film coating on the substrate, forming the food supplement, the pharmaceutical or the part thereof. The invention is characterised in that the coating agent and the other substance are in a concentration gradient from the inside to the outside.

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