Peroxide gel dentifrice
First Claim
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1. An oral composition comprising:
- (i) about 0.1 to about 10% by weight of a peroxygen compound;
(ii) from more than 30% to less than 50% by weight of glycerol; and
(iii) a polyoxyethylene-polyoxypropylene copolymer in an amount so that a weight ratio of glycerol to copolymer ranges from 1;
0.7 to 1;
0.4, the composition having a cohesion value ranging from 100 to 360 g and having a pH of less than 3.03.
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Abstract
An oral composition is provided in the form of a clear gel dentrifice containing hydrogen peroxide and a polyoxyethylene-poloxypropylene copolymer. The gel is stabilized against loss of viscosity at low temperatures by the presence of glycerol in amounts more than 30% but less than 50%. The weight ratio of glycerol to copolymer must range from 1:0.7 to 1:0.4. Advantageously for peroxide stability, the composition has a pH of less than 3. Phosphoric acid is beneficial as the acidifying agent.
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Citations
12 Claims
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1. An oral composition comprising:
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(i) about 0.1 to about 10% by weight of a peroxygen compound; (ii) from more than 30% to less than 50% by weight of glycerol; and (iii) a polyoxyethylene-polyoxypropylene copolymer in an amount so that a weight ratio of glycerol to copolymer ranges from 1;
0.7 to 1;
0.4, the composition having a cohesion value ranging from 100 to 360 g and having a pH of less than 3.03. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification