Toothpaste composition
AssigneeChesebrough-Pond's USA Co., Division of Conopco, Inc.
InventorsJonathan E. Creeth, Paul I. Riley, Mark E. Laing
Life of this patent
Estimating the term…
Abstract
Packaged toothpaste formulations which contain air sensitive components, e.g. vitamin C, are prevented from discoloring or otherwise degrading, by placing adjacent to an area of the packaging which may allow air access to the formulation, e.g. an air permeable collar, a nozzle, or the wall of an air permeable tube, a body (e.g. plug or layer) of material which does not contain any air sensitive components. Preferably, the latter body of material is the packaged toothpaste but without the air sensitive components.
Claims7
A method for preventing a packaged toothpaste formulation containing at least one air sensitive component from degrading through contact with air, said formulation held within packaging comprising a laminated tube with an air permeable collar, said method comprising placing adjacent to said air permeable collar a plug or layer of said formulation absent said at least one air sensitive component.
A method according to 1, wherein said air sensitive component is vitamin C.
Dependencies are inferred from the claim text.