Cleaning tablet
View Patent ↗A cleaning tablet comprising a hydrogen-bonded complex of poly(N-vinyl pyrrolidone) containing, by weight, about 15-20 wt. % H 2 O 2 , and ingredients capable of producing an effervescent effect in aqueous solution by release of carbon dioxide therefrom which comprises an alkali carbonate and/or bicarbonate base and an organic acid.
1. A cleaning tablet comprising a hydrogen-bonded complex of poly(N-vinyl pyrrolidone) containing, by weight, about 15-20 wt. % H 2 O 2 , a disintegrant and ingredients capable of producing an effervescent effect in aqueous solution by release of carbon dioxide therefrom which comprises an alkali carbonate and/or bicarbonate base and an organic acid, wherein the hydrogen-bonded complex of poly(N-vinyl pyrrolidone) is present at a concentration from about 40-50% by weight of the tablet.
2. A cleaning tablet according to claim 1 wherein said alkali carbonate and/or bicarbonate is selected from sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate.
3. A cleaning tablet according to claim 1 wherein the wt. ratio of base to acid therein is about 1:1.
4. A cleaning tablet according to claim 1 having a rapid dissolution time in aqueous solution.
5. A cleaning tablet according to claim 1 wherein said organic acid is selected from the group consisting of citric, malic, tartaric, adipic and fumaric.
6. A cleaning tablet according to claim 5 wherein the organic acid is tartaric acid.
7. A cleaning tablet comprising a hydrogen-bonded complex of poly(N-vinyl pyrrolidone) containing, by weight, about 6-11 wt % H 2 O 2 , a disintegrant and ingredients capable of producing an effervescent effect in aqueous solution by release of carbon dioxide therefrom which comprises an alkali carbonate and/or bicarbonate base and an organic acid, wherein the hydrogen-bonded complex of poly(N-vinyl pyrrolidone) is present at a concentration from about 40-50% by weight of the tablet.