Chesebrough-pond's USA Co., Division of Conopco, Inc.

Paul I Riley

Jonathan Edward Creeth

Mark E Laing

Nigel Peter Bird

Geoffrey S Ingram

James A Ritchie

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.

Toothpaste composition

The invention relates to oral compositions such as toothpastes which contain Vitamin C and a copper compound such as copper sulphate. The tendency of these compositons to discolor, particularly if they also contain a zinc compound such as zinc citrate, can be reduced by the inclusion in the compositions of a stannous compound such as stannous pyrophosphate.

Oral compositions

The disclosure concerns a toothpaste having antimicrobial activity packaged in a closed container comprising water, an ascorbic acid compound consisting of ascorbic acid, an ascorbic acid salt or an ascorbic acid ester and a copper catalyst for the auto-oxidation of the ascorbic acid compound during use of the toothpaste.

Growing community of inventors

Bebington, United Kingdom

Paul I Riley