Liquid activation system
AssigneeColgate-Palmolive Company
InventorsGuofeng Xu, Steven Miller, Jennifer Gronlund
Life of this patent
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Abstract
Described herein are compositions comprising an unactivated liquid, an immobilized sparingly soluble acid or base, such that during storage the unactivated liquid is not in contact with the immobilized sparingly soluble acid or base, but upon use, the unactivated liquid contacts the immobilized sparingly soluble acid or base, whereby the pH of the liquid is altered, thereby activating the liquid to provide a benefit; together with variant and alternative designs, methods of making and using the compositions, and components thereof.
Claims19
An oral care mouthwash product comprising a container having:
- a first compartment containing solid particles or matrix which comprises sparingly soluble acid, wherein the sparingly soluble acid is immobilized within the first compartment and is selected from fumaric acid, propionic acid, pentanoic acid, or a combination thereof;
- and
- a second compartment containing an unactivated liquid, and
- a connection between the first compartment and the second compartment so as to permit flow of the unactivated liquid through the first compartment during use, and wherein the first compartment comprises an aperture for dispensing the mouthwash following passage through the first compartment while retaining the immobilized sparingly soluble acid solid particles or matrix;
- such that during storage the unactivated liquid is not in contact with the immobilized sparingly soluble acid and such that dispensing the liquid from the second compartment requires passing the liquid through the first compartment and out through the aperture, such that the unactivated liquid contacts the immobilized sparingly soluble acid, whereby the pH of the liquid is altered so as to activate the liquid;
- and
- wherein the unactivated liquid is an orally acceptable aqueous mouthwash formulation.
A method of activating a liquid, wherein the liquid is a mouthwash, comprising contacting the liquid with an immobilized sparingly soluble acid selected from fumaric acid, propionic acid, pentanoic acid, or a combination thereof, which is immobilized to prevent dispensing and which alters the pH of the liquid just prior to use, thereby activating the liquid.
Dependencies are inferred from the claim text.