Colgate Palmolive Company

Kathleen M Yuhasz

Robert J Ferlauto, Jr

John P Curtis

Richard J Crawford

A chemically and physically stable antiplaque dentifrice comprising an antiplaque quaternary ammonium compound, a betaine surfactant, a humectant system of glycerin and/or sorbitol and a nonionic gelling agent, prepared by a process which comprises the preparation of two separate gel phases, an oil gel phase and a water gel phase, combining said gel phases into a single gel, and adding a dental abrasive thereto as the final step, or adding said abrasive to the water gel phase prior to the addition of the oil gel phase.

Stable antiplaque dentifrice

A chemically and physically stable antiplaque dentifrice comprising an antiplaque quaternary ammonium compound, a betaine surfactant, a humectant system of gylcerin and/or sorbitol and a nonionic gelling agent, prepared by a process which comprises the preparation of two separate gel phases, an oil gel phase and a water gel phase, combining said gel phases into a single gel, and adding a dental abrasive thereto as the final step, or adding said abrasive to the water gel phase prior to the addition of the oil gel phase.

A stable antiplaque dentifrice with improved foaming containing an antiplaque quaternary ammonium compound, a betaine surfactant to improve foaming without inactivating the antibacterial and antiplaque activity of the quaternary ammonium compound, a humectant selected from the group consisting of polyethylene glycol, sorbitol and mixtures thereof, and a nonionic gelling agent, preferably hydroxyethylcellulose, in an aqueous vehicle containing a dental abrasive. A fluorine-containing compound such as monofluorophosphate is an optionally preferred ingredient.

Stable antiplaque dentifrice with improved foaming

A stable antiplaque dentifrice with improved foaming and improved fluoride stability containing an antiplaque quaternary ammonium compound, a betaine surfactant to improve foaming without inactivating the anti-bacterial and antiplaque activity of the quaternary ammonium compound, a humectant selected from the group consisting of polyethylene glycol, sorbitol, and mixtures thereof, a nonionic gelling agent, preferably hydroxyethylcellulose and a fluorine-containing compound capable of providing a fluoride ion, a small amount of glycerin to improve fluoride stability in polyethylene glycol humectant, in an aqueous vehicle containing a dental abrasive. A small amount of glycerin, as low as 1%, improves the long term fluoride stability of the dentifrice without adversely affecting the cosmetic stability thereof.

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Fords, NJ, United States of America

Kathleen M Yuhasz