CLEAR DENTRIFRICE GELS
According to the present invention there is provided a visually clear, dentrifice gel comprising; a) sufficient tetrasodium pyrophosphate to provide from 0.2 % to 5 % pyrophosphate anion; b) a silica dental abrasiv e having a refractive index of from 1.445 to 1.47; c) from 0.7 % to 3 % sodium alkyl...
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Main Author | |
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Format | Patent |
Language | English French |
Published |
17.08.2004
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | According to the present invention there is provided a visually clear, dentrifice gel comprising; a) sufficient tetrasodium pyrophosphate to provide from 0.2 % to 5 % pyrophosphate anion; b) a silica dental abrasiv e having a refractive index of from 1.445 to 1.47; c) from 0.7 % to 3 % sodium alkyl sulphate; and d) an aqueous liquid carrier. The ge l has excellent clarity, high anticalculus efficiency and good foaming. According to a further aspect of the invention there is provided a process for making a clear dentifrice gel comprising the step of adding anhydrous tetrasodium pyrophosphate to an aqueous carrier, the gel comprising: a) a silica dental abrasive having a refractive index of from 1.445 to 1.47; and b) an aqueous liquid carrier comprising les s than 27 % total water. The use of anhydrous tetrasodium pyrophosphate allows greater formulation flexibility at the processing stage by freeing up water for the dissolution and/or hydration of other dentrifice components. |
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Bibliography: | Application Number: CA19992334623 |