Dispensing container

Abstract

A multi-chamber container (60) includes a first chamber (2) having a side wall (3) terminating at a first chamber upper end (5). A first chamber opening (6) is disposed in the first chamber upper end (5). The first chamber side wall (3) is formed from an inner circumference portion (62) and an outer circumference portion (63). The multi-chamber container (60) includes a second chamber (10) having a side wall (11) terminating at a second chamber side wall upper end (13) which has a second chamber opening (14). A hinge (61) is disposed intermediate each chamber inner and outer side wall interface portion (66). The chambers (2) and (10) are moveable about the hinge (61) between a first position where the inner circumference side wall portions (62) and (64) are spaced apart, and a second position where the inner circumference side wall portions (62) and (64) of the chambers are adjacent.

Description

FIELD OF THE INVENTION[0001]The invention relates to dispensing separate composition and, in particular, to a dispensing container that can substantially simultaneously dispense two or more separated composition that are combined after dispensing.[0002]The invention has been developed for use with stabilised chlorine dioxide based mouth rinses and will be described hereinafter with a reference to this application. However, it will be appreciated that the invention is not limited to this particular field of use and it applicable to dispensing two or more compositions that are to be kept separate until being dispensed, or that can be dispensed independently of the other compositions without cross contamination there between.BACKGROUND OF THE INVENTION[0003]Oral rinses or mouthwashes are intended to kill bacteria in the oral cavity and their use has been widely known. The oral cavity is simply exposed to the mouth rinse and which is then expelled. The oral cavity may further be rinsed ...

AI Technical Summary

Benefits of technology

[0027]It can therefore be seen that there is advantageously provided a dispensing container which advantageously only mixes the compositions at the time of dispensing for use. This will significantly increase shelf life of chlorine dioxide mouth rinses whilst allowing desired flavours and mouth feel additives and other ingredients to be included as desired without sacrificing any palatability or efficacy for longer shelf life. It will be appreciated that as the material degrades it has less chlorine dioxide available and may become less effective. It is also noted that this method of packaging has the significant additional advantage of allowing the control of the activation of the stabilised chlorine dioxide by the variation of the pH and buffering within the materials disposed within the chambers. Yet further, there

Problems solved by technology

However, recent published studies indicate that alcohol based mouthwashes may increase a user's risk of developing cancer and it has been implicated as a possible cause or exacerbater of Xerostemia.

Unfortunately, since stabilised chlorine dioxide undergoes strong oxidation reactions it is difficult to stabilise the chlorine dioxide for a period sufficient for use in oral compositions.

The chemical nature of the stabilised chlorine dioxide in practice means that other agents such as flavours or other additives are degraded undesirably when packaged for use.

However, consumers desire this product and manufacturers have used it with less than optimal flavours and mouth feel agents to try to increase shelf life, or to sacrifice stability for an improved flavour and mouth feel.

Unfortunately, the use of the ethoxylated hydrogenated castor oil does not sufficiently protect the flavour agents in a composition containing stabilised chlorine dioxide.

Whilst the solution of the Noville, I

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