Patent GB-457270-A (GB)
Title: Improvements in or relating to chewable hollow containers or capsules
IPC: A61J3/07
Filed: 1935-04-24
Abstract: A paraffin wax composition for use in making capsules to contain mouthwash consists of a mixture of paraffin wax, or halogenated paraffin, with preferably from 20 to 50 per cent of a finely divided insoluble filler which is wetted more readily by paraffin than by water.  A small proportion of a wax or resin may also be added.  The filler is stated to increase the resistance of the paraffin to deformation at relatively high temperatures. Suitable fillers are chalk, anhydrite, asbestine (talcous agalite), talc, kaolin, asbestos, adsorbent carbon, and mixtures of these.  Waxes added may be carnauba wax, ozokerite, candellila wax and beeswax.  Fillers such as calcium phosphate, plaster of Paris, gypsum and silica which are more readily wetted by water than by paraffin are referred to but are stated to be unsuitable. The suitability of any substance for use as a filler may be determined by emulsifying a mixture of warm water, molten paraffin and the filler.  An emulsion having the paraffin as the continuous phase is obtained when the filler is more readily wetted by paraffin than by water.ALSO:A paraffin wax composition for use in making hollow containers or capsules consists of a mixture of paraffin wax, or halogenated paraffin, with preferably 20 to 50 per cent of a finely divided insoluble filler which is wetted more readily by paraffin than by water.  A small proportion of a wax or resin such as carnauba wax, oxokerite, candellila wax or beeswax may also be added.  The filler is stated to increase the resistance of the paraffin to deformation at comparatively high temperatures. Suitable fillers are chalk, anhydrite, asbestine (talcous agatite), talc, kaolin, asbestos, adsorbent carbon and mixtures of these. Compositions containing fillers such as calcium phosphate, plaster of Paris, gypsum, and silica, which are wetted more readily by water than by paraffin, are referred to, but are stated to be unsuitable.ALSO:Chewable hollow containers or capsules, particularly intended to contain a mouthwash or the like, are made of a composition consisting of paraffin wax or a halogenated paraffin admixed with preferably from 20 to 50 per cent of a finely divided insoluble filler which is wetted more readily by paraffin than by water.  A small proportion of a wax or resin may also be added.  The filler p  is stated to increase the resistance of the paraffin to deformation at relatively high temperatures.  Suitable fillers are chalk, anhydrite, asbestine (talcous agalite), talc, kaolin, asbestos, adsorbent carbon, and mixtures of these substances. Waxes specified are carnauba wax, ozokerite, candelilla wax and beeswax.  A suitable mouthwash consists of zinc chloride, formalin, menthol, oil of cassia, oil of caryophyllus, and alcohol.  Compositions containing fillers such as calcium phosphate, plaster of Paris, gypsum and silica, which are more readily wetted by water than by paraffin, are referred to but are stated to be unsuitable.  The capsules may be of various specified shapes, may be made by dipping, casting, extrusion or other moulding processes and may be sealed or be fitted with a stopper. The suitability of any substance for use as a filler may be determined by emulsifying a mixture of the filler, molten paraffin and warm water.  An emulsion having paraffin as the continuous phase is obtained when the filler is more readily wetted by paraffin than by water.  The Specification as open to inspection under Sect. 91 refers also to bottles and other forms of containers.  This subject-matter does not appear in the Specification as accepted.