Claims for Patent: 5,776,435

Summary for Patent: 5,776,435

Title:	Antiplaque antibacterial oral composition
Abstract:	An oral composition dentifrice comprising an orally acceptable vehicle, about 5-30% by weight of a siliceous polishing agent, about 0.25-0.35% by weight of a substantially water-insoluble noncationic antibacterial antiplaque agent, such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether (triclosan) and an antibacterial-enhancing agent which enhances the delivery of said antibacterial agent to, and retention thereof on, oral surfaces.
Inventor(s):	Gaffar; Abdul (Princeton, NJ), Nabi; Nuran (No. Brunswick, NJ), Afflitto; John (Brookside, NJ), Stringer; Orum (Yardley, PA)
Assignee:	Colgate-Palmolive Company (New York, NY)
Application Number:	08/176,926
Patent Claims:	1. An oral composition dentifrice for attaching, adhering or bonding a plaque-inhibiting antibacterial agent to oral tooth and gum surfaces comprising in an orally acceptable aqueous humectant vehicle, about 5-30% by weight of a siliceous polishing agent and about 0.25%-0.35% by weight of a substantially water insoluble noncationic antibacterial agent, said oral composition comprising at least one of a surface active agent and a flavoring oil and also containing about 0.05-4% by weight of a water soluble or water swellable antibacterial enhancing agent having an average material weight of about 100 to 1,000,000 which contains at least one carboxylic delivery enhancing group and at least one organic retention-enhancing group, which delivery enhancing group enhances delivery of said antibacterial agent to oral tooth and gum surfaces and said retention-enhancing group enhances attachment, adherence or bonding of said antibacterial agent on oral tooth and gum surfaces, wherein said oral composition is free of polyphosphate anticalculus agent in an effective anticalculus amount and said vehicle is other than polyethylene glycol which reduces the antibacterial activity of said antibacterial agent. 2. An oral composition dentifrice for attaching adhering or bonding a plaque-inhibiting antibacterial agent to oral tooth and gum surfaces comprising in an orally acceptable aqueous humectant vehicle, about 5-30% by weight of a siliceous polishing agent and about 0.25%-0.35% by weight of a substantially water insoluble noncationic antibacterial agent, said oral composition comprising at least one of a surface active agent and a flavoring oil and also containing about 0.05-4% by weight of an anionic copolymer of maleic acid or anhydride with another ethylenically unsaturated polymerizable monomer, which copolymer enhances delivery and attachment, adherence or bonding of said antibacterial agent on oral tooth and gum surfaces, wherein said oral composition is free of polyphosphate anticalculus agent in an effective anticalculus amount and said vehicle is other than polyethylene glycol which reduces the antibacterial activity of said antibacterial agent. 3. The oral composition according to either of claim 1 or claim 2 wherein said antibacterial agent is selected from the group consisting of halogenated diphenyl ethers, halogenated salicylanilides, benzoic esters, halogenated carbonilides and phenolic compounds. 4. The oral composition according to claim 2 wherein said other monomer of said copolymer is methyl vinyl ether in a 4:1 to 1:4 molar ratio with the maleic acid or anhydride. 5. The oral composition according to claim 4 wherein said copolymer has a molecular weight of about 30,000-1,000,000. 6. The oral composition according to claim 5 wherein the copolymer has an average molecular weight of about 70,000. 7. An oral composition according to claim 3 wherein said antibacterial agent is triclosan. 8. An oral composition dentifrice for attaching, adhering or bonding a plaque-inhibiting agent to oral tooth and gum surfaces comprising in an orally acceptable aqueous humectant vehicle, about 5-30% by weight of a siliceous polishing agent, about 0.25%-0.35% by weight of a substantially water insoluble noncationic phenolic antibacterial agent, said oral composition comprising at least one of a surface active agent and a flavoring oil and about 0.05-4% by weight of an antibacterial-enhancing agent which contains at least one delivery-enhancing functional group and at least one organic retention-enhancing group, wherein said delivery-enhancing group enhances delivery of said antibacterial agent to oral tooth and gum surfaces and said retention-enhancing group enhances attachment, adherence or bonding of said antibacterial agent on oral tooth and gum surfaces, wherein said oral composition is free of polyphosphate anticalculus agent in an effective anticalculus amount and said vehicle is other than polyethylene glycol which reduces the antibacterial activity of said antibacterial agent. 9. The oral composition claimed in claim 8 wherein said phenolic compound is selected from the group consisting of phenol, thymol, eugenol and 2,2'-methylene bis (4-chloro-6-bromophenol). 10. The oral composition claims in any of claims 1, 2, 4-6, 8 or 9 wherein said surface active agent is present in amount of about 0.5-5% by weight. 11. The oral composition claims in any of claims 1, 2, 4-6, 8 or 9 wherein said flavoring oil is present in amount of about 0.1-5% by weight. 12. The oral composition according to either of claims 8-9 wherein said antibacterial-enhancing agent has an average molecular weight of about 100 to 1,000,000. 13. The oral composition according to claim 12 wherein said delivery-enhancing group is acidic. 14. The oral composition according to claim 13 wherein said delivery-enhancing group is selected from the group consisting of carboxylic, phosphoric, phosphinic, and sulfonic acids, and salts, and mixtures thereof and wherein said organic retention-enhancing group comprises the formula --(X).sub.n --R wherein X is O, N, S, SO, SO.sub.2 P, PO or Si, R is hydrophobic alkyl, aryl, alkaryl, alkenyl, acyl, aralkyl, heterocyclic, or inert-substituted derivatives thereof, and n is zero or 1 or more and wherein said antibacterial-enhancing agent is a natural or synthetic monomer or a polymer selected from the group consisting of oligomers, homopolymers, copolymers of two or more monomers, ionomers, block copolymers, graft copolymers and cross-linked polymers and monomers. 15. The oral composition according to claim 14 wherein said antibacterial-enhancing agent is an anionic polymer containing a plurality of said delivery-enhancing and retention-enhancing groups. 16. The oral composition according to claim 15 wherein said anionic polymer comprises a chain containing repeating units each containing at least one carbon atom. 17. The oral composition according to claim 16 wherein the unit contains at least one delivery-enhancing group and at least one retention-enhancing group bonded to the same, vicinal, or other atoms in the chain. 18. An oral composition comprising in an orally acceptable aqueous humectant vehicle, about 5-30% of a siliceous polishing agent, about 0.25%-0.35% of triclosan, at least one of a surface active agent and a flavoring oil, and about 0.05-4% of a copolymer of maleic acid or anhydride with methyl vinyl ether. 19. The oral composition according to any of claims 1, 2, 4-6, 8, 9 or 18 containing a fluoride-providing source.