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US 2006/0222601 A1Published application
Oral care compositions with color changing indicator
OwnerRam Sabnis, Timothy Kehoe +1inventors
InventorsRam Sabnis, Timothy Kehoe, Robert Balchunis
Life of this patent
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Abstract
The invention describes color changing toothpastes and mouthwashes which contains acid-base indicator(s) for interaction with the oral cavity to provide a color change indicative of treatment time.
Claims32
A toothpaste comprising:
- a surfactant;
- and
- an acid-base indicator comprising:
- wherein
- R2 is selected from the group consisting of hydrogen, nitro, amino and alkyl;
- R3 is selected from the group consisting of hydrogen, aryl, alkyl, nitro, acetamido and alkoxide;
- R5 is selected from the group consisting of hydrogen, halo, alkoxide and alkyl;
- R6 is selected from the group consisting of hydrogen and alkyl;
- R7, R8, R9 and R10 are all hydrogen;
- optionally, one of the carbons connected to R2, R3, R5 or R6 can be substituted with a nitrogen atom;
- M1 and M2 are each independently a hydrogen atom, a metal ion or an ammonium ion, provided that at least one of M1 or M2 is a metal ion or an ammonium ion;
- a gelling agent;
- and
- a polishing agent.
11 more elements
A method to indicate when brushing of the teeth is complete, comprising the step of:
- applying a toothpaste composition to a tooth comprising
- a surfactant;
- and
- an acid-base indicator comprising:
- wherein
- R2 is selected from the group consisting of hydrogen, nitro, amino and alkyl;
- R3 is selected from the group consisting of hydrogen, aryl, alkyl, nitro, acetamido and alkoxide;
- R5 is selected from the group consisting of hydrogen, halo, alkoxide and alkyl;
- R6 is selected from the group consisting of hydrogen and alkyl;
- R7, R8, R9 and R10 are all hydrogen;
- optionally, one of the carbons connected to R2, R3, R5 or R6 can be substituted with a nitrogen atom;
- M1 and M2 are each independently a hydrogen atom, a metal ion or an ammonium ion, provided that at least one of M1 or M2 is a metal ion or an ammonium ion;
- a gelling agent;
- a polishing agent;
- and
- brushing the composition for a period of time sufficient such that the color of the indicator changes.
13 more elements
A mouthwash composition comprising:
- a surfactant;
- and
- an acid-base indicator comprising:
- wherein
- R2 is selected from the group consisting of hydrogen, nitro, amino and alkyl;
- R3 is selected from the group consisting of hydrogen, aryl, alkyl, nitro, acetamido and alkoxide;
- R5 is selected from the group consisting of hydrogen, halo, alkoxide and alkyl;
- R6 is selected from the group consisting of hydrogen and alkyl;
- R7, R8, R9 and R10 are all hydrogen;
- optionally, one of the carbons connected to R2, R3, R5 or R6 can be substituted with a nitrogen atom;
- M1 and M2 are each independently a hydrogen atom, a metal ion or an ammonium ion, provided that at least one of M1 or M2 is a metal ion or an ammonium ion;
- and
- a humectant.
10 more elements
A method to indicate when treatment of the oral cavity is complete, comprising the step of:
- contacting a mouthwash composition to the oral cavity comprising
- a surfactant;
- and
- an acid-base indicator comprising:
- wherein
- R2 is selected from the group consisting of hydrogen, nitro, amino and alkyl;
- R3 is selected from the group consisting of hydrogen, aryl, alkyl, nitro, acetamido and alkoxide;
- R6 is selected from the group consisting of hydrogen, halo, alkoxide and alkyl;
- R6 is selected from the group consisting of hydrogen and alkyl;
- R7, R8, R9 and R10 are all hydrogen;
- optionally, one of the carbons connected to R2, R3, R5 or R6 can be substituted with a nitrogen atom;
- M1 and M2 are each independently a hydrogen atom, a metal ion or an ammonium ion, provided that at least one of M1 or M2 is a metal ion or an ammonium ion;
- a humectant;
- and
- contacting the oral cavity for a period of time sufficient such that the color of the indicator changes.
12 more elements
Dependencies are inferred from the claim text.