Dip coated compositions containing copolymer of polyvinyl alcohol and polyethylene glycol and a gum
First Claim
1. A method of making a coated tablet, said method comprising dipping a core comprising an active agent into a coating liquid and drying said dipped core to form a outer-coating on said core, wherein said coating liquid comprises (i) at least one copolymer of polyvinyl alcohol and polyethylene glycol, (ii) at least one gum, and (iii) a solvent for said at least one copolymer of polyvinyl alcohol and polyethylene glycol and said at least one gum.
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Accused Products
Abstract
In one aspect, the present invention features a method of making a coated tablet, by dipping a core including an active agent into a coating liquid and drying the dipped core to form a outer-coating on said core, wherein the coating liquid includes (i) at least one copolymer of polyvinyl alcohol and polyethylene glycol, (ii) at least one gum, and (iii) a solvent for the at least one copolymer of polyvinyl alcohol and polyethylene glycol and the at least one gum and coated tablets manufactured by such method.
46 Citations
21 Claims
- 1. A method of making a coated tablet, said method comprising dipping a core comprising an active agent into a coating liquid and drying said dipped core to form a outer-coating on said core, wherein said coating liquid comprises (i) at least one copolymer of polyvinyl alcohol and polyethylene glycol, (ii) at least one gum, and (iii) a solvent for said at least one copolymer of polyvinyl alcohol and polyethylene glycol and said at least one gum.
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7. (canceled)
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10. A method of claim 1, wherein said coating comprises, based upon the total dried weight of the coating,
a) from about 90 percent to about 99 percent of said at least one copolymer of polyvinyl alcohol and polyethylene glycol; - and
b) from about 0.5 percent to about 2 percent of locust bean gum; and c) from about 0.5 percent to about 2 percent of xanthan gum.
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10-1. (canceled)
Specification