ORAL CARE COMPOSITION
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Accused Products
Abstract
Disclosed are oral care compositions, for example dentifrice compositions, comprising an orally acceptable vehicle, metal oxide particles having an average particle size of no greater than a dentin tubule and a polymeric adherent material for adhering the metal oxide particles in the dentin tubule. The metal oxide particles have a median particle size of 5 microns or less, and may comprise zinc oxide.
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Citations
45 Claims
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1-23. -23. (canceled)
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24. An oral care composition comprising
an orally acceptable vehicle; -
metal oxide particles comprising zinc oxide; and a polymeric adherent material comprising; at least one of hydroxypropylmethyl cellulose (HPMC), hydroxyethylpropyl cellulose (HEPC), hydroxybutylmethyl cellulose (HBMC), carboxymethyl cellulose (CMC) or combinations thereof, and at least one of poly (ethylene oxide) polymers, linear polyvinylpyrrolidone (PVP) and cross-linked polyvinylpyrrolidone (PVP), polyethylene glycol (PEG)/polypropylene glycol (PPG) copolymer, ethylene oxide (EO)—
propylene oxide (PO) block copolymers, ester gum, shellac, pressure sensitive silicone adhesives, methacrylates, poly(methyl vinyl ether/maleic anhydride) and poly(methyl vinyl ether/maleic acid) or combinations thereof. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification