Oral Care Compositions
Provided are compositions comprising an orally-acceptable carrier and a cationic copolymer derived from the polymerization of n-vinyl pyrrolidone (VP) with cationic monomers containing amines or by copolymerization of n-vinyl pyrrolidone (VP) monomers with cationic monomers comprising amides followed by deprotection to amines. Also provided are uses of such compounds in the oral cavity to inhibit demineralization of a tooth.
1 . A composition comprising an orally-acceptable carrier and a cationic copolymer having repeat units derived from n-vinyl pyrrolidone (VP) and repeat units derived from monomers containing amines or guanidine.
2 . The composition of claim 1 wherein said copolymer is described by Formula I below:
wherein x and y are integers in a ratio of from 1:99 to about 99:1, the repeat units x and y are randomly distributed, and R 1 is a repeat unit containing an amine group.
3 . The composition of claim 2 wherein R 1 is derived from a monomer compound selected from the group consisting of n-vinyl phthalimide, 2-N-morpholinoethyl acrylate, methacryloylchloine methyl sulfate, 2-N-morpholinoethyl methacrylate, 2-diisopropylaminoethyl methacrylate, 2-aminoethyl methacrylate, Methacryloyl-L-lysine, N-[3-(N,N-dimethylamino)propyl] methacrylamide, N-(2-aminoethyl) methacrylamide, 2-(N,N-Dimethylamino)ethyl acrylate, 2-(N,N-Diethylamino)ethyl methacrylate, 2-(tert-Butylamino)ethyl methacrylate, 2-(N,N-Dimethylamino)ethyl methacrylate, 2-Acryloxyethyltrimethylammonium, and the like.
4 . The composition of claim 3 wherein R 1 is derived from n-vinyl phthalimide.
5 . The composition of claim 2 wherein R 1 is a repeat unit derived from a cationic monomer comprising an amide followed by deprotection of the amide to an amine.
6 . The composition of claim 5 wherein said cationic monomer comprising an amide is selected from the group consisting of n-vinyl formamide, N-(3-aminopropyl)methacrylamide, N-(3-BOC-aminopropyl)methacrylamide, N-[2-(N,N-dimethylamino)ethyl]methacrylamide, N-[3-(N,N-Dimethylamino)propyl]acrylamide and the like.
7 . The composition of claim 7 wherein aid cationic monomer comprising an amide is n-vinyl formamide.
8 . The composition of claim 1 comprising from about 0.01 to about 5% of said cationic copolymer.
9 . The composition of claim 1 further comprising fluoride.
10 . The composition of claim 1 further comprising sodium tripolyphosphate.
11 . The composition of claim 1 wherein said composition is in a form selected form the group consisting of a mouthwash, mouth rinse, mouth spray, toothpaste, tooth gel, sub-gingival gel, mousse, foam, denture care product, dentifrice, lozenge, concentrate and chewable tablet.
12 . The composition of claim 11 wherein said composition is a mouthwash comprising water, and at least one surfactant selected from the group consisting of anionic, cationic, non-ionic, zwitterionic surfactants and combinations of two or more thereof.
13 . The composition of claim 11 further comprising at least one essential oil selected from the group consisting of menthol, thymol, eucalyptol, methyl salicylate, and combinations of two or more thereof.
14 . The composition of claim 13 further comprising fluoride.
15 . The composition of claim 13 further comprising sodium tripolyphosphate.
16 . The composition of claim 1 wherein said copolymer has a weight average molecular weight of from about 10,000 to about 1,000,000.
17 . The composition of claim 6 wherein said copolymer has a weight average molecular weight of from about 10,000 to about 1,000,000.
18 . The composition of claim 17 wherein said copolymer has a weight average molecular weight of from about 10,000 to about 500,000.
19 . The composition of claim 1 said composition being substantially free of sodium lauryl sulfate.
20 . The composition of claim 12 said composition being substantially free of sodium lauryl sulfate.
21 . A method of inhibiting demineralization of a tooth by contacting a tooth surface with a composition of claim 1 .
22 . A method of inhibiting demineralization of a tooth by contacting a tooth surface with a composition of claim 13 .
23 . A method of inhibiting demineralization of a tooth by contacting a tooth surface with a composition of claim 14 .