Dry-powder film coating composition and method of preparation
AssigneeChr. Hansen, Inc.
InventorsCharles W. Gayser, Jr., Jean-Paul Goyette
Life of this patent
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Abstract
An edible dry-powder formulation of a film coating for pharmaceuticals and confectioneries using gum acacia as a low-cost film former is provided. A cellulosic polymer such as hydroxypropyl methylcellulose is used in addition to the gum acacia. A plasticizer such as propylene glycol is also added. The resulting formulation is a dry, free flowing powder that can be put into solution and applied to a tablet or other substrate without an extended waiting period. The resulting film coating is clear, shiny, durable and extremely economical. Because the formulation is a dry powder, it has along shelf life and low shipping costs.
Claims14
A dry powder film forming composition for use in coating pharmaceutical tablets, food, and confectionery products, comprising:
- a film forming agent including a powdered cellulosic polymer and gum acacia;
- and
- a powdered edible plasticizer,
- wherein the composition is capable of forming an aqueous solution having a low viscosity ranging from about 75 to about 150 cps when measured by the Brookfield Small Chamber Method (10% w/w in water, USP;
- Model RVTD;
- Chamber 13R;
- Spindle #21;
- 100 rpm;
- 23° C.).
A dry powder film forming composition for use in coating pharmaceutical tablets, food, and confectionery products, comprising:
- a film forming agent including a powdered cellulosic polymer and gum acacia;
- a powdered edible plasticizer;
- and
- a detackifier,
- where the composition is capable of forming an aqueous solution having a low viscosity ranging from about 75 to about 150 cps when measured by the Brookfield Small Chamber Method (10% w/w in water, USP;
- Model RVTD;
- Chamber 13R;
- Spindle #21;
- 100 rpm;
- 23° C.).
Dependencies are inferred from the claim text.