Dispensing – Collapsible wall-type container – Plural container and/or compartment
Patent
1976-08-16
1978-07-04
Reeves, Robert B.
Dispensing
Collapsible wall-type container
Plural container and/or compartment
B65D 3522
Patent
active
040984354
ABSTRACT:
A stabilized and extrudable paste or gel dentifrice comprises two dentifrice portions, each of which includes a component which is chemically reactive with the other such component in the other portion, with the portions being maintained separate from each other in a dispensing container from which they are dispensable together through a closable opening therein in response to pressure. One of the reactive components is an alkali metal fluorine-containing salt such as sodium fluoride or sodium monofluorophosphate, used for its effect in hardening tooth enamel, and the other is a water insoluble calcium salt, such as dicalcium phosphate, tricalcium phosphate or calcium carbonate, used as a polishing agent. The dentifrice portions are preferably separated by an extrudable material, such as a polyhydric alcohol-water gel of a gum, such as sodium carboxymethyl cellulose. Also within the invention is a method for the manufacture of the mentioned dentifrice.
REFERENCES:
patent: 2982396 (1961-05-01), Shihadeh
patent: 3002658 (1961-10-01), Sajda
patent: 3747804 (1973-07-01), Raaf et al.
Colgate-Palmolive Company
Grill Murray M.
Reeves Robert B.
Shannon John P.
Stone Robert L.
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