Abstract:
A stable, zinc containing aqueous oral composition having low astringency, the composition containing a mixture of a zinc salt, an anionic polycarboxylate polymer and a pyrophosphate salt whereby less astringency is experienced by the user of the composition.
Abstract:
A dual component tooth whitening composition is disclosed, which composition contains a peroxide whitening and a second ingredient incompatible with the peroxide compound such as a nonionic antibacterial agent, the second ingredient and the peroxide compound each being incorporated in separate dentrifice components which are physically separated until dispensed for use, the components retaining their original physical state when in contact, the first component being a composition containing a peroxide whitening compound in a vehicle thickened with a combination of a particulated water insoluble inorganic compound such as for example a inorganic compound such as fumed silica or Laponite and an organic thickener other than an alkylene oxide polymer such as for example a carboxyl vinyl polymer, and the second component containing the ingredient incompatible with the peroxide.
Abstract:
A process for preparing a cross-linked alkyl vinyl ether/maleic anhydride copolymer having improved linear viscoelastic properties desired in oral care preparations, wherein the cross-linking of an alkyl vinyl ether/maleic anhydride copolymer with a polyol compound is carried out at a temperature of from about 50 to about 90 °C and the cross-linked product is recovered.
Abstract:
An oral care composition is provided wherein the composition comprises an ionic liquid, wherein the ionic liquid comprises: a) a quaternary ammonium cation of the formula wherein R1, R2, R3 and R4 are each an organic moiety and may be the same or different, and at least one of R1, R2, R3 and R4 includes a hydroxyl; and b) an anion selected from the group consisting of salicylate, alkylsulfate, sulfate, acetate, halide, phosphate, alkyl phosphate and tosylate; wherein the oral care composition is a mouth rinse, toothpaste, toothpowder, oral bead or strip, fluid-encased dental strip, irrigation fluid, plaque removal liquid, dental floss, hard candy, soft candy, lozenge, chewing gum, or lollipop.
Abstract:
Described herein are block copolymers having hydrophobic blocks and hydrophilic blocks which are effective in binding to the surface of hard tissue; compositions comprising the same, as well as methods of making and using the same are also described.