IE40354L - Calcium carbonate - containing dentifrice - Google Patents

Abstract

1449317 Dentifrice BEECHAM GROUP Ltd 23 Jan 1975 [8 Feb 1974] 5983/74 Heading A5B Dentifrice compositions containing an abrasive having its abrasivity reduced by the addition of certain particulate materials comprise a cleaning agent which consists of from 75-99.9% by weight of particulate calcium carbonate and from 0.1-25% by weight of a water insoluble particulate polymeric material which is (a) less abrasive and (b) of lower average density than the calcium carbonate e.g. polymethyl methacrylate, polyisobutyl methacrylate, cellulose acetate and butyrate, polyamides, polyethylene, polypropylene, polystyrene, polyvinyl chloride and co-polymers of polyvinylchloride and polyvinyl alcohol. The polymeric material may be in the form of particles which are hollow or have cavities. The compositions may be in the from of pastes, liquids, gels, ointments, emulsions, powders, tablets, dragees or chewing gum and may additionally contain a detergent e.g. sodium lauryl sulphate, sodium N-lauroyl sarcosinate and ricinoleate and sulphoricinoleate derivatives; humectant e.g. glycerol, sorbitol, propanediol and/or butanediol; binding agent e.g. gum tragacanth, sodium carraglcenate, carboxymethyl cellulose, cellulose ethers, polyacrylic acid and polyvinylpyrrolidone; flavouring agent e.g. peppermint or spearmint oil, menthol, oils of clove, wintergreen, eucalyptus, aniseed, rose, lavender, saccharin and sodium cyclamate; preservatives e.g. p-hydroxybenzoic acid esters and hexachlorophene; colour e.g. dyestuffs, bleaches, optical brighteners such as sodium perborate, magnesium peroxide, hydrogen peroxide-urea compounds; and/or an ionic fluoride or fluorophosphate compound e.g. stannous fluoride, ammonium fluoride or sodium monofluorophosphate. [GB1449317A]