Coatings based on polydextrose for aqueous film coating of pharmaceutical food and confectionary products
AssigneeColorcon, Inc.
InventorsEdward J. Woznicki, Susan M. Grillo
Life of this patent
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Abstract
Providing a film coating on pharmaceutical tablets, foods, confectionery forms and the like by coating them with polydextrose, or a combination of polydextrose and cellulosic polymer, or a layer of polydextrose overcoated by a layer of cellulosic polymer.
Claims32
A method of film coating pharmaceutical tablets, food, confectionery forms and the like with a protective film coating comprising the steps of
- mixing polydextrose, plasticizer, detackifier, and secondary film former into water to form an aqueous coating suspension,
- spraying an effective amount of said coating suspension onto said tablets to form a film coating on said tablets,
- and drying the film coating on said tablets,
- wherein the amount of polydextrose used is sufficient to yield improved results as compared to a similar coating absent polydextrose.
A method of film coating pharmaceutical tablets, food, confectionery forms and the like with a protective film comprising the steps of
- mixing polydextrose, plasticizer, detackifier, and secondary film former into water to form an aqueous coating suspension,
- said tablets having debossed words or designs on their outer surface,
- spraying an effective amount of said coating suspension onto said tablets to form a film coating thereon without obscuring the debossed words or designs by bridging, and
- drying the film coating on said tablets,
- wherein the amount of polydextrose used is sufficient to yield improved results as compared to a similar coating absent polydextrose.
A method of film coating pharmaceutical tablets, food, confectionery forms and the like with a protective film comprising the steps of
- mixing polydextrose, plasticizer, and a cellulosic polymer into water to make an aqueous coating suspension,
- spraying an effective amount of said coating suspension onto said tablets to form a film coating on said tablets,
- and drying the film coating on said tablets,
- wherein the amount of polydextrose used is sufficient to yield improved results as compared to a similar coating absent polydextrose.
A method of film coating pharmaceutical tablets, food, confectionery forms and the like with a protective film comprising the steps of
- mixing together polydextrose, plasticizer, detackifier, secondary film former, and water to form an aqueous coating suspension,
- spraying an effective amount of said coating suspension onto said tablets to form a film coating on said tablets,
- and drying the film coating on said tablets,
- spraying an effective amount of a cellulosic coating solution onto the tablets to form a cellulosic film coating on the tablets which overcoats said film coating,
- and drying the cellulosic film coating on said tablets,
- wherein the amount of polydextrose used is sufficient to yield improved results as compared to a similar coating absent polydextrose.
A method of coating pharmaceutical tablets, food, confectionery forms and the like with a protective film comprising the steps of
- mixing a primary film-former comprising polydextrose and a cellulosic film former, with the polydextrose being in the range of 10 to 100% by weight of the primary film-former being in the range of 0 to 90% of, a plasticizer, a detackifier, and a secondary film-former into water to form an aqueous coating suspension,
- spraying an effective amount of said coating suspension onto said tablets to form a film coating on said tablets,
- and drying the film coating on said tablets wherein the amount of polydextrose used is sufficient to yield improved results as compared to a similar coating absent polydextrose.
Dependencies are inferred from the claim text.