Non-alcoholic aqueous mouthwash
AssigneeBausch & Lomb Incorporated
InventorKenneth D. Konopa
Life of this patent
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Abstract
A non-alcoholic, aqueous mouthwash composition is provided which contains a dispersion system containing a non-ionic surfactant selected from an hydrogenated castor oil and a polyoxyethylene polyoxypropylene block copolymer having about 50% to about 90% ethylene oxide, a humectant and a cationic antimicrobial agent. The composition exhibits a homogeneous, uniform appearance and a high degree of bacterial efficacy.
Claims22
An aqueous, slightly acidic, non-alcoholic mouthwash composition made by a method, comprising:
- a) mixing a water insoluble flavoring oil in an amount of about 0.05 to about 2.0% by weight of said composition into a hydrogenated castor oil surfactant in an amount of less than about 1.0% by weight of said composition to form a mixture;
- b) adding, subsequently, a humectant to said mixture in an amount sufficient to form a first phase that is clear and homogeneous in appearance;
- c) mixing at least one cationic antimicrobial agent into water that comprises about 0.1% to about 1.0% by weight of said composition of a buffer effective to obtain a slightly acidic final pH to form a second phase;
- and
- d) mixing said first phase into said second phase in a slow, controller manner so as to prevent said first phase from visually coagulating into discrete particles in said second phase wherein said mixed composition is of clear, homogeneous, stable appearance.
The non-alcoholic aqueous mouthwash composition of claim 15 comprising from about 70% to about 95% water, about 0.1% to about 3.0% of a water insoluble flavoring oil, about 0.1% to about 1.0% of a surfactant that is a hydrogenated castor oil, about 1.0% to 20.0% of a humectant, and a disinfecting amount of at least one cationic antimicrobial agent wherein the ratio of antimicrobial agent to surfactant is 1 part antimicrobial agent to 1 to 500 parts surfactant and wherein said composition has a homogeneous, uniform appearance.
Dependencies are inferred from the claim text.