Oral bandage and oral preparations
First Claim
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1. An oral bandage comprising a soft adhesive film having a thickness of at least 5 μ
- m consisting essentially of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state, wherein the polycarboxylic acid and/or the polycarboxylic acid anhydride and the vinyl acetate polymer are uniformly dissolved in each other without forming individual regions due to phase separation.
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Abstract
An oral bandage comprising a soft adhesive film comprising a mixture of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state, and an oral preparation comprising such an oral bandage having incorporated therein a topical drug are disclosed. The oral bandage or preparation exhibits strong adhesion of long duration when applied to the oral mucosa or teeth.
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Citations
27 Claims
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1. An oral bandage comprising a soft adhesive film having a thickness of at least 5 μ
- m consisting essentially of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state, wherein the polycarboxylic acid and/or the polycarboxylic acid anhydride and the vinyl acetate polymer are uniformly dissolved in each other without forming individual regions due to phase separation.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An oral preparation comprising a soft adhesive film having a thickness of at least 5 μ
- m consisting essentially of a mixture of a polycarboxylic acid and/or a polycarboxylic acid anhydride and a vinyl acetate polymer in a compatible state and topical drug incorporated therein, wherein the polycarboxylic acid and/or the polycarboxylic acid anhydride and the vinyl acetate polymer are uniformly dissolved in each other without forming individual regions due to phase separation.
- View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
Specification