WO2015094336A1

WO2015094336A1 - Oral care compositions and methods

Info

Publication number: WO2015094336A1
Application number: PCT/US2013/076892
Authority: WO
Inventors: Michael Prencipe; Xiang Chen; Suzanne Jogun
Original assignee: Colgate-Palmolive Company
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2015-06-25
Also published as: BR112016014539A2; TW201538176A; BR112016014539B1; CA2934501C; EP3082712A1; US9814666B2; ZA201604695B; MX2016008227A; CN106413668A; MX355064B; CA2934501A1; BR112016014539B8; EP3082712B1; AR098898A1; AU2013408265A1; CN106413668B; US20160331670A1; AU2013408265B2; TWI686208B

Abstract

Provided is an oral care composition comprising a phosphate/acrylate co-polymer, a synthetic anionic linear polycarboxylate polymer, and an orally acceptable carrier; and methods of using the same.

Description

ORAL CARE COMPOSITIONS AND METHODS

BACKGROUND

[0001] Many individuals desire a "bright" smile and white teeth, and consider dull and stained teeth cosmetically unattractive. Unfortunately, without preventive or remedial measures, stained teeth are almost inevitable due to the absorbent nature of dental material. Everyday activities such as smoking or other oral use of tobacco products, and eating, chewing or drinking certain foods and beverages (in particular coffee, tea coke, and red wine), cause undesirable staining of surfaces of teeth. Staining can also result from microbial activity, including that associated with dental plaque. The chromogens or color causing substances in these materials become part of the pellicle layer and can permeate the enamel layer. Even with regular brushing and flossing, years of chromogen accumulation can impart noticeable tooth discoloration.

[0002] A tooth is comprised of an inner dentin layer and an outer hard enamel layer that is the protective layer of the tooth. The enamel layer of a tooth is naturally opaque, and white or a slightly off-white color. The enamel layer is composed of hvdroxyapatite mineral crystals that create a somewhat porous surface. These hvdroxyapatite crystals form microscopic hexagonal rods or prisms that make up the enamel surface. As a result, the surface of the enamel presents microscopic spaces or pores between the prisms. Without limiting the mechanism, function, or utility of the present disclosure, it is believed that this porous nature of the enamel is where discoloring substances permeate the enamel and discolor the teeth.

[0ΘΘ3] To combat staining and brighten or restore the natural enamel color, products containing bleaching materials are commercial!)' available for professional and consumer use. The most commonly accepted chemicals used in teeth whitening today are peroxides. Peroxides are generally deemed safe from a physiological standpoint, and can be effective to whiten teeth. Such peroxides include hydrogen peroxide, carbamide peroxide, sodium perborate, and sodium percarbonate. When these peroxides are in appropriate contact wit teeth they will usually oxidize stains, rendering the teeth whiter.

[0004] Professional dental treatments frequently include a tooth surface preparation such as acid etching followed by the application of highly concentrated bleaching solutions (e.g. up to 37% hydrogen peroxide) and/or the application of heat or light, (See, e.g., U.S. Pat. Nos. 5,425,953 and 5,766,574.) These procedures provide rapid results, but are expensive, and often require several trips to the dentist, in many cases, the patient's lips are uncomfortably retracted during the entire treatment and the patient is confined to sitting in the dental chair.

[0005] Alternatively, at home bleaching systems can be used. These systems have gained significant popularity in the past decade because of reduced cost, and increased convenience.

[0006] Current home treatment methods include abrasive toothpastes, toothpastes that produce oxides, whitening gels for use with a dental tray and whitening strips. The effectiveness of such techniques depends on a variety of factors including the type and intensity of the stain, the type of bleaching agent, contact time of the bleaching agent on the teeth, the amount of available bleaching active in the composition the ability of the bleaching agent to penetrate the tooth enamel, and consumer compliance. Effectiveness is also dependent on the amount of bleaching active in the composition, the ability of the active to be released during use, and the stability of the active in the product. However, the effectiveness of ma )' of these treatments is adversely affected because of deficiencies in one or more factors relating to the composition and consumer compliance.

[0007] Biofilms form when bacteria adhere to surfaces in some form of watery environment and begin to excrete a slimy, glue-like substance that can stick to all kinds of materials - metals, plastics, soil particles, medical implant materials, biological tissues. Biofilms can be formed by a single bacterial species, but biofilms more often consist of many species of bacteria, as well, as fungi, algae, protozoa, debris, and corrosion products. Essentially, a biofilm may form on any surface exposed to bacteria and some amount of water. Dental plaque is a yellowish biofilm that builds up on the teeth. Biofilms contain communities of disease-causing bacteria and their uncontrolled accumulation has been associated with cavities and gum disease (both gingivitis and periodontitis).

[0008] There is thus a need for novel oral compositions and methods that may inhibit staining and/or biofilm formation.

BRIEF SUMMARY

[0009] Provided herein is an oral care composition comprising a phosphate/acr late co-polymer, a synthetic anionic linear po!yearboxy!ate, and an orally acceptable carrier.

[0010] Also provided is a method of forming the composition as a mouth rinse that includes the phosphate/acrylate co-polymer and the synthetic anionic linear poiycarboxyiate polymer as well as a zinc salt and a cationic antibacterial agent comprising: (I) mixing water, surfactant, and a cationic antibacterial agent in a mixing tank to form a main mix;

(II) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water, the the phosphate/acrylate co-polymer, and a polyol (such as glycerin and/or sorbitol) to form a first premix,

(III) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water first with the zinc salt (such as water soluble zinc salt, such as zinc chloride) and then adding the synthetic anionic linear polycarboxylate polymer (Gantrez) to form a second premix,

(IV) mixing the first premix into the main mix,

(V) after the first premix is added, mixing the second premix into the main mix,

(VI) optional!)', mixing flavor and/or cooling agents with a glycol to form a third premix and adding the third premix to the main mix after the second premix is added,

[0011 ] Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

DETAILED DESCRIPTION

[0012] The following description of the preferred embodiment(s) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

[0013] As used throughout, ranges are used as shorthand for describing each and every value that is within the range. Any value within the range can be selected as the terminus of the range. In addition, all references cited herein are hereby incorporated by referenced in their entireties. In the event of a conflict in a definition in the present disclosure and that of a cited reference, the present disclosure controls,

[0014] Unless othenvise specified, all percentages and amounts expressed herein and elsewhere in the specification should be understood to refer to percentages by weight. The amounts given are based on the active weight of the material.

[0Θ15] As used herein, an "oral care composition" refers to a composition for which, the intended use can include oral care, oral hygiene, or oral appearance, or for which, the intended method of use can comprise administration to the oral cavity. In some embodiments, an oral care composition is not intentionally swallowed, but is rather retained in the oral cavity for a time sufficient to effect the intended utility. The oral care compositions as disclosed herein may be used in nonhuman mammals such as companion animals (e.g., dogs and cats), as well as by humans. In some embodiments, the oral care compositions as disclosed herein are used by humans.

[0016] As used herein, "phosphate/acrylate co-polymer" refers to a polymer made up of acrylate monomers and phosphate-bearing monomers, e.g., a co-pohmerized product of a mixture of aery He acid, methacrylic acid, and 2-hydroxyethy! methacrylate phosphates of Formula 1 :

wherein n is 0, 1 or 2. In some embodiments, the phosphate/acrylate co-polymer is a co- polymerized product of a mixture of acrylic acid, methacrylic acid, and 2-hydroxyethyi methacrylate phosphates of Formula 1 , comprising acrylic acid in a molar percentage of 70-90%, 80-90%, or about 85%; methacrylic acid in a molar percentage of 5-20%, 5-15%, or about 1 1 %, and hydroxyethyl methacrylate phosphates of Formula 1 in a molar percentage of 1-10%, 2-6%, or about 4%, In some embodiments, the phosphate/acrylate co-polymer has a weight average molecular weight of from 10 to 500 kDa, optionally, 10 to 200 kDa, 10 to 40 kDa, 15 to 25, or 17 to 23 kDa, and the phosphate/acrylate co-polymer is below its glass transition temperature. In certain embodiments, the weight average molecular weight is 10 to 40 kDa. In other embodiments, the weight average molecular weight is 17 to 23 kDa. For example, in a particular embodiment, the phosphate/acrylate copolymer is a random copolymer that is the copolymerized product of a mixture of, in the relative amounts set forth in Table 1 below, 2-hydroxyethy methacrylate phosphates, acrylic acid, and methacrylic acid.

Table

[0017] Phosphate/acrylate co-polymers as described include DV8801 (Rhodia).

[0018] As used herein, "synthetic anionic linear polycarboxylate" refers to a polymer synthesized by using an oiefmicafly or ethyienicaiiy unsaturated carboxviic acid that contains an activated carbon-to-carbon oiefinic double bond and at least one carboxyl group. The acid contains an oiefinic double bond which readily functions in polymerization because of its presence in the monomer molecule either in the alpha-beta position with respect to a carboxyl group or as part of a terminal methylene grouping. Illustrative of such acids are acrylic, methacrylic, ethacryiic, alpha-chloroacryiic, crotonic, beta-acry!oxy propionic, sorbic, alpha- chlorsorbic, cinnamic, beta-styri f acrylic, muconic, itaconic, citraconic, mesaconic, glutaconic, aconitic, aipha-phenyiacrylie, 2-benzyI acrylic, 2-cyclohexylacryiic, angeiic, umbellic, funiaric, maleic acids and anhydrides. Other oiefinic monomers copolymerizable wit such carboxviic monomers include vinyl acetate, vinyl chloride, dimethyl maleate and the like. The synthetic anionic linear polycarboxylate is mainly a hydrocarbon with optional halogen and O-containing substituents and linkages as present in for example ester, ether, and OB groups. The carboxyls may be in the form of the acid (-COOH) or carboxylate anion (-COG^" ). The copolymers preferably contain sufficient carboxyl groups for water- solubility and adherence to plaque. The terms "synthetic" and "linear" do not include known thickening or gelling agents comprising carhoxymethy !ce! iulose and other derivatives of cellulose and natural gums, nor Carbopo!s having reduced solubility due to cross-linkages.

[0019] In some embodiments, "synthetic anionic linear polycarboxyiate" refers to 1 :4 to 4: 1 copolymers of maieic anhydride or acid with another polymerizabie ethyienicaiiy unsaturated monomer, e.g., methyl vinyl ether (methoxyethylene), having a molecular weight (M.W.) of about 30,000 to about 2,500,000; for example 1 :4 to 4:1 , e.g. about 1 :1, copolymers of methyl vinyl ether/maleic anhydride, e.g., in a ratio of about 1 : 1 substantial ly in an alternating sequence, wherein the anhydride is hydrolyzed following co-polymerization to provide the corresponding acid, having a molecular weight (M.W.) of about 30,000 to about 1,000,000, e.g. about 300,000 to about 800,000, e.g., as sold under the trade name GANTREZ®, e.g., GANTREZ© S-97 Pharmaceutical Grade (M.W. ca. 700,000), available from Ashland Specialty Chemicals, Bound Brook, N.J. 08805.

[0020] As used herein, "orally acceptable carrier" refers to any vehicle useful in formulating the oral care compositions disclosed herein. The orally acceptable carrier is not harmful to a mammal in amounts disclosed herein when retained in the mouth, without swallowing, for a period sufficient to permit effective contact with a dental surface as required herein, in general, the orally acceptable carrier is not harmful even if unintentionally swallowed. Suitable orally acceptable carriers include, for example, one or more of the following: water, a thickener, a buffer, a humeetant, a surfactant, an abrasive, a sweetener, a flavorant, a visual aid (e.g., a pigment, a dye, or a mixture thereof), an anti-caries agent, an anti-bacterial, a whitening agent, a desensitizing agent, a vitamin, a preservative, an enzyme, and mixtures thereof.

[0021] As used herein, a "tartar control agent" refers to a compound or a mixture of compounds that inhibit the formation of tartar, a mixture of calcium phosphates on organic matrices, and/or the deposition of plaque on teeth to form tartar (calculus).

[0022] As used herein, "chemical stain" refers to a discoloration of a dental surface caused by adsorption or absorption of a colored agent on or into the surface, or caused by chemical reaction of material of the dental surface (e.g., dental enamel) with a colored or noncolored agent contacting the surface. "Chemical staining" herein means formation and/or development of a chemical stain. [0023] As used herein, "dental surface" refers to a surface of a natural tooth or a hard surface of artificial dentition including a denture, dental plate, crown, cap, filling, bridge, dental implant and the like. In some embodiments, the dental surface is a natural tooth.

[0Θ24] Biofilm comprises a diverse microbial community on the tooth surface embedded in a matrix of polymers of bacterial and salivary origin. Once a tooth surface is cleaned, a conditioning film of proteins and glycoproteins may be adsorbed rapidly to the tooth surface. Biofilm formation involves the interaction between early bacterial colonisers and this film. Subsequently, secondary colonisers adhere to the already attached early colonisers (co- aggregation) and this process contributes to the development of a matured biofilm. Inhibiting the growth of biofilm may involve preventing and minimizing the re-attachment of bacteria onto the tooth surfaces.

[0025] The phosphate side group of a phosphate/acrylate co-polymer, as disclosed herein, may function as an anchor to deposit the co-polymer onto the tooth surface thereby forming a physical layer on the tooth surface that may inhibit staining and/or biofilm formation. Without being bound by theory, the co-polymer may act by forming a barrier on the tooth surface ultimately lowering the surface energy for bacterial attachment. The co-polymer may also prevent bacteria from sticking together.

[0026 J Provided herein is an oral care composition (Composition 1) comprising

a phosphate/acrylate co-polymer, a synthetic anionic linear polycarboxylate polymer, and an orally acceptable carrier.

[0027] Further provided herein is Composition 1 as follows:

1.1 Composition 1 wherein the composition comprises 0.1 to 10 weight % phosphate/acrylate co-polymer, e.g., 0.2 to 9 weight % phosphate/acrylate copolymer, e.g., 0.3 to 8 weight % phosphate/acrylate co-polymer, e.g., 0.4 to 7 weight % phosphate/acrylate co-polymer, e.g., 0.5 to 6 phosphate/acrylate copolymer, e.g., e.g., 0.5 to 5 weight % phosphate/acrylate co-polymer, e.g., 0.5 to 4 weight % phosphate/acrylate co-polymer, e.g., 0.5 to 3 weigh % phosphate/acrylate co-polymer, e.g., 0.5 to 2 weight % phosphate/acrylate copolymer, e.g., 1 to 10 weight % phosphate/acrylate co-polymer, e.g., 1 to 8 weight % phosphate/acrylate co-polymer, e.g., 1 to 6 w^reight % phosphate/acrylate copolymer, e.g., 1 to 5 weight % phosphate/acrylate co-polymer, e.g., 1 to 4 weight % phosphate/acrylate co-polymer, e.g., 1 to 3 weight % phosphate/acrylate copolymer, e.g., 1 to 2 weight % phosphate/acrylate co-polymer.

Composition 1 or 1.1 wherein the composition comprises 0.01 to 30 weight % synthetic anionic linear polycarboxylate, e.g., 0.1 to 30 weight % synthetic anionic linear polycarboxylate, e.g., 1 to 30 weight % synthetic anionic linear polycarboxylate, e.g., 5 to 30 weight % synthetic anionic linear polycarboxylate, e.g., 10 to 30 weight % synthetic anionic linear polycarboxylate, e.g., 10 to 20 weight % synthetic anionic linear polycarboxylate, e.g., 15 weight % synthetic anionic linear polycarboxylate, e.g., 17 weight % synthetic anionic linear polycarboxylate.

Composition 1 , 1.1 , or 1.2, wherein the synthetic anionic linear polycarboxylate is a copolymer of maleie anhydride and methyl vinyl ether.

Composition 1 or 1.1- .3 wherein the synthetic anionic linear polycarboxylate is a .1 :4 to 4: 1 copolymer of methyl vinyl ether/maleic anhydride (optionally folly or partially hydrolyzed following co-polymerization to provide the corresponding acid).

Composition I or 1.1-1.4 wherein the synthetic anionic linear polycarboxylate has a molecular weight ( .W.) of about 30,000 to about 1,000,000, e.g. about 300,000 to about 800,000.

Composition 1 or 1.1-1.5 wherein the composition further comprises a tartar control agent.

Composition 1.6 wherein the composition comprises 0.1 to 20 weight % tartar control agent, e.g., 0.1 to 15 weight % tartar control agent, e.g., 0.5 to 15 weight % tartar control agent, e.g., 15 to 10 weight % tartar control agent, e.g., 1 to 9 weight % tartar control agent, e.g., 1 to 8 weight % tartar control agent, e.g., 1 to 5 weight % tartar control agent.

Composition 1.6 or 1.7 wherein the tartar control agent comprises at least one salt comprising phosphorus.

Composition 1.6-1.8 wherein the tartar control agent comprises at least one of a pyrophosphate salt, a polyphosphate salt, and a cyclic phosphate salt. Composition 1.6-1.9 wherein the tartar control agent comprises at least one of a pyrophosphate salt and a polyphosphate salt.

Composition 1.6-1.10 wherein the tartar control agent comprises at least one pyrophosphate salt.

Composition 1.6-1.11 wherein the tartar control agent comprises 0.1 to 10 weight % of at least one pyrophosphate salt, e.g., 0.5 to 10 weight % of at least one pyrophosphate salt, 0.5 to 6 weight % of at least one pyrophosphate salt, e.g., 0.5 to 5 weight % of at least one pyrophosphate salt, e.g., 0.5 to 4 weight % of at least one pyrophosphate salt, e.g., 0.5 to 3 weight % of at least one pyrophosphate salt, e.g., 1 to 5 weight % of at least one pyrophosphate salt, e.g., 1 to 4 weight % of at least one pyrophosphate salt, e.g., 1 to 3 weight % of at least one pyrophosphate salt, e.g., 1 to 2 weight % of at least one pyrophosphate salt.

Composition 1.6-1.12 wherein the tartar control agent comprises at least one of a di-alkali metal pyrophosphate salt and a tetra-alkali metal pyrophosphate salt. Composition 1.6-1.13 wherein the tartar control agent comprises at least one di- alkali metal pyrophosphate salt.

Composition 1.6-1.14 wherein the tartar control agent comprises at least one tetra- alkali metal pyrophosphate salt.

Composition 1.6-1.15 wherein the tartar control agent comprises 0.1 to 10 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 0.1 to 8 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., e.g., 0.5 to 6 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 0.5 to 5 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 0.5 to 4 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 0.5 to 3 weight % of at least one tetra- alkali metal pyrophosphate salt, e.g., 0.5 to 3 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 1 to 5 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 1 to 4 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 1 to 3 weight % of at least one tetra-alkali metal pyrophosphate salt, e.g., 1 to 2 weight % of at least one tetra-alkali metal pyrophosphate salt. Composition 1.6-1.16 wherein the tartar control agent comprises at least one of sodium pyrophosphate (TSPP, Na |P_.<()-). potassium pyrophosphate (K₄P₂0₇)₅ disodium dipotassium pyrophosphate ( a_{2 2}P₂0₇), disodi m dihydrogen pyrophosphate Na₂H₂P₂0₇, and dipotassium dihydrogen pyrophosphate Composition 1.6-1.17 wherein the tartar control agent comprises at least one of sodium pyrophosphate (TSPP, Na₄P₂0₇) and potassium pyrophosphate (K P₂O₇). Composition 1.6-1.18 wherein the tartar control agent comprises sodium pyrophosphate (TSPP, Na₄P₂0₇).

Composition 1.6-1.19 wherein the tartar control agent comprises 0.1 to 10 weight % sodium pyrophosphate, e.g., 0.1 to 8 weight % sodium pyrophosphate, e.g., e.g., 0.5 to 6 weight % sodium pyrophosphate, e.g., 0.5 to 5 weight % sodium pyrophosphate, e.g., 0.5 to 4 weight % sodium pyrophosphate, e.g., 0.5 to 3 weight % sodium pyrophosphate, e.g., 0.5 to 3 weight % sodium pyrophosphate, e.g., 1 to 5 weight % sodium pyrophosphate, e.g., 1 to 4 weight % sodium pyrophosphate, e.g., 1 to 3 weight % sodium pyrophosphate, e.g., 1 to 2 weight % sodium pyrophosphate.

Composition 1.6-1 .20 wherein the tartar control agent comprises at least one polyphosphate salt.

Composition 1.6-1.21 wherein the tartar control agent comprises at least one tripolyphosphate salt.

Composition 1.6-1.22 wherein the tartar control agent comprises 0.1 to 20 weight % of at least one tripolyphosphate salt, e.g., 0.5 to 15 weight % of at least one tripolyphosphate salt, e.g., 1 to 15 weight % of at least one tripolyphosphate salt, e.g., 1 to 10 weight % of at least one tripolyphosphate salt, e.g., 2 to 15 weight % of at least one tripolyphosphate salt, e.g., 2 to 11 weight % of at least one tripolyphosphate salt, e.g., 2 to 10 weight % of at least one tripolyphosphate salt, e.g., 2 to 9 weight % of at least one tripolyphosphate salt, e.g., 2 to 8 weight % of at least one tripolyphosphate salt, e.g., 2 to 7 weight % of at least one tripolyphosphate salt, e.g., 3 to 15 weight % of at least tripolyphosphate salt, e.g., 3 to 10 weight % of at least one tripolyphosphate salt, e.g., 3 to 9 weight % of at least one tripolyphosphate salt, e.g., 3 to 8 weight % of at least one tetra- tripolyphosphate salt, e.g., 3 to 7 weight % of at least one tripolyphosphate salt. Composition 1.6-1 .23 wherem the tartar control agent comprises sodium tripolyphosphate (Na₅P₃O₁₀, STPP).

Composition 1.6-1.24 wherein the tartar control agent comprises 0.1 to 20 weight % sodium tripolyphosphate, e.g., 0.5 to 15 weight % sodium tripolyphosphate, e.g., 1 to 15 weight % sodium tripolyphosphate, e.g., 1 to 10 weight % sodium tripolyphosphate, e.g., 2 to 15 weight % sodium tripolyphosphate, e.g., 2 to 11 sodium tripolyphosphate, e.g., 2 to 10 weight % sodium tripolyphosphate, e.g., 2 to 9 weight % sodium tripolyphosphate, e.g., 2 to 8 weight % sodium tripolyphosphate, e.g., 2 to 7 weight % sodium tripolyphosphate, e.g., 3 to 15 weight % sodium tripolyphosphate, e.g., 3 to 10 weight % sodium tripolyphosphate, e.g., 3 to 9 weight % sodium tripolyphosphate, e.g., 3 to 8 weight % sodium tripolyphosphate, e.g., 3 to 7 weight % sodium tripolyphosphate.

Composition 1.6-1.25 wherein the tartar control agent comprises at least one of sodium hexametaphosphate ((NaP0₃)6, SHMP), sodium trimetaphosphate (Ν¾Ρ₃θ , STMP), and a β-phase calcium pyrophosphate, such as disclosed in U.S. Patent No. 6,241,974.

Composition 1 or 1.1-1.26 wherein the composition comprises water, a thickener, a buffer, a humectant, a surfactant, an abrasive, a sweetener, a flavorant, a visual aid (e.g. a pigment, a dye, or a mixture thereof), an anti-caries agent, an antibacterial, a whitening agent, a desensitizing agent, a preservative, or a mixture thereof.

Composition 1 or 1.1-1.27 wherein the composition comprises water.

Composition 1 or 1.1-1.28 wherein the composition comprises a thickener, Composition 1 .29 wherein the thickener is a mixture of thickening silica, carrageenan gum, and sodium carboxyrnethylcellulose.

Composition 1 or 1.1-30 wherein the composition comprises a buffer.

Composition 1.31 wherein the buffer is sodium hydroxide,

Composition 1 or 1.1-1.32 wherein the composition comprises a humectant. Composition 1.33 wherein the humectant is a mixture of glycerin, sorbitol, and propylene glycol .

Composition 1 or 1.1-1.34 wherein the composition comprises a surfactant.

Composition 1.35 wherein the surfactant is sodium lauryi sulfate.

Composition 1 or 1 .1-1 .36 wherein the composition comprises an abrasive.

Composition 1.37 wherein the abrasive comprises silica.

Composition 1 or 1.1.-1.38 wherein the composition comprises a sweetener.

Composition 1 .39 wherein the sweetener is sodium saccharin.

Composition 1 or 1 .1-1 .61 wherein the composition comprises a flavorant.

Composition 1 or 1.1-1 .41 wherein the composition comprises a visual aid.

Composition 1.42 wherein the visual aid is titanium dioxide.

Composition .1 or 1.1-1.43 wherein the composition comprises an anti-caries agent,

Composition 1.44 wherein the anti-caries agent is a fluoride ion source.

Composition 1.45 wherein the fluoride ion source is stannous fluoride, sodium fluoride, potassium fluoride, sodium rnonofluorophosphate, sodium fluorosilicate, ammonium fluorosilicate, amine fluoride (e.g., ^'N'-octadecyltrimethyiendiamine- N, , '-trisi2-etIiaiK)[)~dihydrofluoride}, ammonium fluoride, titanium fluoride, hexafluorosulfate, or a mixture thereof.

Composition 1.46 wherein the anticaries agent is sodium fluoride.

Composition 1 or 1.1-1.47 wherein the composition comprises an anti-bacterial. Composition 1.48 wherein the anti-bacterial agent is triclosan, cetylpyridinium chloride (CPC), chlorhexidine (CHX), stannous salts, essential oils, water soluble zinc salts, water insoluble zinc salts, e.g., ZnO or zinc citrate, or a mixture thereof, e.g., wherein the anti -bacterial agent is triclosan, e.g., wherein the antibacterial agent is ZnO, e.g., wherein the anti-bacterial agent is zinc citrate, e.g., wherein the anti-bacterial, agent is a mixture thereof.

Composition I or 1.1-1.49 wherein the composition comprises an anti-attachment agent selected from Ethyl lauroyl arginate, Delmopinol, chitosan, or a mixture thereof, e.g., wherein the composition comprises Ethyl lauroyl arginate, e.g., wherein the composition comprises Delmopinol, e.g., wherein the composition comprises ciiitosan, e.g., wherein the composition comprises a mixture thereof. Composition 1 or 1.1-1.50 wherein the composition comprises a whitening agent. Composition 1.51 wherein the whitening agent is hydrogen peroxide.

Composition 1.52 wherein the composition comprises a polymer-peroxide complex, e.g., a cross- linked polyvinylpyrrolidone hydrogen peroxide complex. Compositio 1. or 1.1 -1.53 wherein the compositio comprises a desensitizing agent, a vitamin, a preservative, an enzyme, or a mixture thereof.

Composition 1 or .1.1-1.54 wherein the composition is a mouthwash, toothpaste, tooth gel, tooth powder, non-abrasive gel, mousse, foam, mouth spray, lozenge, oral tablet, dental implement, or pet care product,

Composition 1 or 1.1-1.55 wherein the composition is a mouthwash.

Composition 1 or 1.1-1.55 wherein the composition is a toothpaste.

Any foregoing compositions wherein the phosphate/acrylate co-polymer is a co- polymerized product of a mixture of acrylic acid, methacrylic acid, and 2- hydrox ethyl methacr late phosphates of Formula .1 :

wherein n is 0, 1 or 2.

Any foregoing compositions wherein the phosphate/acrylate co-polymer is a co- polymerized product of a mixture of acrylic acid, methacrylic acid, and 2- hydroxyethyi methacrylate phosphates of Formula 1 comprising acrylic acid in a molar percentage of 80-90%, e.g., about 85%; methacrylic acid in a molar percentage of 5-15%, e.g., about 1 1 %, and hydroxyethyl methacrylate phosphates of Formula 1 in a molar perce tage of 2-6%, e.g., about 4%. 1.60 Any foregoing compositions wherein the phosphate/acrylate co-polymer has an average molecular weight of from 10 to 40 kDa, e.g., 20 to 30 kDa.

1.61 Any foregoing compositions wherein the phosphate/acrylate copolymer is a random copolymer having a weight average molecular weight of about 20,000 to 30,000 grams per mole that is the copolymerized product of a mixture of acrylic acid, methacrylic acid, and 2-hydroxyethy methacr iate phosphates of Formula 1, e.g., in a molar ratio of about 85 : 11 :4.

[0028] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise water. Water employed in the preparation of the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1 -1.61 , should be deionized and free of organic impurities. Water may make up the balance of the oral care composition. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1 .1-1 .61 , comprise 0 to 90 weight % water, e.g., 0.1 to 90 weight % water, e.g., 1 to 80 weight % water, e.g., 2 to 70 weight % water, 5 to 60 weight % water, e.g., 5 to 50 weight % water, e.g., 20 to 60 weight % water, e.g., 10 to 40 weight % water. This amount of water includes the free water which is added plus that amount which is introduced with other components of the oral care composition, such as with sorbitol.

[0029} A thickener provides a desirable consistency and/or stabilizes and/or enhances performance (e.g., provides desirable active release characteristics upon use) of the oral care composition. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1 , 1 -1 ,61 , comprise from 0.01 to .15 weight % of a thickener, 0.1 to 1.5 weight % of a thickener, e.g., 0.1 to 10 weight % of a thickener, e.g., 0.1 to 5 weight % of a thickener, e.g., 0.5 to 10 weight % of a thickener, e.g., 0.5 to 5 weight % of at a thickener, e.g., .1 to 4 weight % of a thickener, e.g., 2 to 5 weight % of a thickener, e.g., 2 to 4 weight % of a thickener, e.g., 3 to 4 weight % of a thickener. Higher weight percentages may be used for chewing gums, lozenges and breath mints, sachets, non -abrasive gels and subgingival gels. Thickeners that may be used in the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, include, for example, carboxy vinyl polymers, carrageenan (also known as carrageenan gum), hydroxyethyl cellulose (HEC), natural and synthetic clays (e.g., Veegum and laponite), water soluble salts of cellulose ethers (e.g., sodium carboxymethylceilulose (CMC) and sodium carboxymethyl hydroxyethyl cellulose), natural gums (e.g., gum karaya, xanthan gum, gum arable, and gum tragacanth), colloidal magnesium aluminum silicate, silica (e.g., finely divided silica), polyvinyl pyrroHdone, carbowaxes, fatty acids and salts thereof, and mixtures thereof. In some embodiments, a mixture of thickening si lica and carrageenan gum is used as the thickener in the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1 , 1 -1.61 , In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, comprise from 0.01 to 15 weight % of thickening silica and carrageenan gum, 0.1 to 1 weight % of thickening silica and carrageenan gum, e.g., 0.1 to 1.0 weight % of thickening silica and carrageenan gum, e.g., 0.1 to 5 weight % of thickening silica and carrageena gum, e.g., 0.5 to 10 weight % of thickening silica and carrageenan gum, e.g., 0.5 to 5 weight % of thickening silica and carrageenan gum, e.g., 1 to 4 weight % of thickening silica and carrageenan gum, e.g., 2 to 5 weight % of thickening silica and carrageenan gum, e.g., 2 to 4 weight % of thickening silica and carrageenan gum, e.g., 3 to 4 weight % of thickening silica and carrageenan gum.

[0030] A buffer adjusts the pH of oral care compositions, for example, to a range of about pH 4.0 to about pH 6.0. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1.-1.61, comprise from 0.1 to 10 weight % of a buffer, 0.5 to 10 weight % of a buffer, e.g., 0.5 to 5 weight % of a buffer, e.g., 0.5 to 4 weight % of a buffer, e.g., 0.5 to 3 weight % of a buffer, e.g., 0.5 to 2 weight % of a buffer, e.g., 1 to 2 weight % of a buffer. Buffers that may be used in the oral care compositions disclosed herei , e.g., Composition 1, e.g., 1.1-1.61, include, for example, sodium bicarbonate, sodium phosphate {e.g., monosodium phosphate

disodium phosphate (ΝαοΗΡΟ,ι), trisodium phosphate (NasPO,*)}, sodium, hydroxide, sodium carbonate, sodium acid pyrophosphate, citric acid, sodium citrate, and mixtures thereof. In some embodiments, sodium hydroxide is used as the buffer in. the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1 - 1.61. In some embodiments, the oral care compositions disclosed herein, e.g., Compositio 1, e.g., .1.1-1.61, comprise from 0.1 to 10 weight % of sodium hydroxide, e.g., 0.5 to 10 weight % of sodium hydroxide, e.g., 0.5 to 5 weight % of sodium hydroxide, e.g., 0.5 to 4 weight % of sodium hydroxide, e.g., 0.5 to 3 weight % of sodium hydroxide, e.g., 0.5 to 2 weight % of sodium hydroxide, e.g., 1 to 2 weight % of sodium hydroxide.

[0031] A humeciant keeps oral care compositions from, hardening upon exposure to air. Certain, humectants can also impart desirable sweetness or flavor to oral care compositions. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise, on a pure humectant basis, from 0 to 70 weight % of a humectant, e.g., 10 to 70 weight % of a humectant, e.g., .10 to 65 weight % of a humectant, e.g., 10 to 60 weight % of a humectant, e.g., 10 to 50 weight % of a humectant, e.g., 20 to 50 weight % of at a humectant, e.g., 20 to 40 weight % of a humectant. Humectants that may be used in the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, include, for example, glycerin, sorbitol, xylitol, butylene glycoi, polyethylene glycol, propylene glycol, trirnethyl glycine, and mixtures thereof. In some embodiments, a mixture of glycerin, sorbitol, and propylene glycol is used as the humectant in the oral care compositions disclosed herein, e.g., Composition. 1 , e.g., 1. 1 -1.61. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, comprise, on a pure humectant basis, from 0 to 70 weight % of glycerin, sorbitol, and propylene glycol, e.g., 10 to 70 weight % of glycerin, sorbitol, and propylene glycol, e.g., 10 to 65 weight % of glycerin, sorbitol, and propylene glycol, e.g., 10 to 60 weight % of glycerin, sorbitol, and propylene glycol, e.g., 10 to 50 weight % of glycerin, sorbitol, and propylene glycol, e.g., 20 to 50 weight % of glycerin, sorbitol, and propylene glycol, e.g., 20 to 40 weight % of glycerin, sorbitol, and propylene glycoi.

[0032] I some embodiments, the oral care compositions disclosed herein, e.g., Composition I , e.g., 1 .1-1 .61 , comprise a surfactant, e.g., selected from anionic, cationic, zwitterionic, and nonionic surfactants, and mixtures thereof. In some embodiments, the surfactant is reasonably stable throughout a wide pH range. Surfactants are described in, for example, U.S. Pat. No. 3,959,458, to Agncola et al; U.S. Pat. No. 3,937,807, to Haefele; and U.S. Pat. No. 4,051,234, to Gieske et al. In some embodiments, the oral care compositions disclosed herein, e.g., Composition. 1, e.g., 1 , 1 -1.61 , comprise from 0.01 to 10 weight % of a surfactant, e.g., 0.05 to 5 weight % of a surfactant, e.g., 0.1 to 10 weight % of a surfactant, e.g., 0.1 to 5 weight % of a surfactant, e.g., 0.1 to 2 weight % of a surfactant, e.g., 0.5 to 2 weight % of a surfactant. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61 , comprise from 0.01 to 10 weight % of an anionic surfactant, e.g., 0.05 to 5 weight % of an anionic surfactant, e.g., 0.1 to 10 weight % of an anionic surfactant, e.g., 0.1 to 5 weight % of an anionic surfactant, e.g., 0.1 to 2 weight % of an anionic surfactant, e.g., 0.5 to 2 weight % of an anionic surfactant, e.g., 1.5 weight % of an anionic surfactant.

[0Θ33] Anionic surfactants that may be used in the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61 , include, for example,

i. water-soluble salts of higher fatty acid monogiyceride monosuifates, such as the sodium salt of the monosulfated monoglyceri.de of hydrogenated coconut oil fatty acids such as sodium -methyl N-cocoy! taurate, sodium cocomonoglyceride sulfate,

ii. higher alkyl sulfates, such as sodium lauryl sulfate,

iii. higher aikyi-ether sulfates, e.g., of formula

wherein m is 6-16, e.g., 10, n is 1 -6, e.g., 2, 3 or 4, and X is Na or K, for example sodium iaureth-2 sulfate (CH₃(CH2)ioCH2(OCH₂CH2)20S03 a),

iv. higher alkyl atyl sulfonates such as sodium dodecyl benzene sulfonate (sodium lauryl benzene sulfonate), and

v. higher alkyl suifoacetates, such as sodium lauryl suifoacetate (dodecyl sodium, sulfoacetate), higher fatty acid esters of 1,2 dihydroxy propane sulfonate, sulfocolaurate (N-2-eth l laurate potassium sulfoacetamide) and sodium lauryl sarcosinate.

[0034] As used herein, "higher alkyl" refers to C₆~¾ alkyl

[0035] In some embodiments, the oral care compositions disclosed herein, e.g., Composition I , e.g., 1.1-1.61, comprise an anionic surfactant. In some embodiments, the anionic surfactant is the water soluble salt of alkyl sulfates having from 10 to 18 carbon atoms in the alkyl radical and water soluble salts of sulfonated monoglycerides of fatty acids having from 10 to 18 carbon atoms. Sodium lauryl sulfate, sodium lauroyl sarcosinate, and sodium coconut monogiyceride sulfonates are examples of anionic surfactants of that type. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise sodium lauryl sulfate, sodium ether lauryl sulfate, or a mixture thereof. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1 -1 .61 , comprise sodium lauryl sulfate. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise from 0.01 to 10 weight % sodium lauryl sulfate, e.g., 0.05 to 5 weight % sodium lauryl sulfate, e.g., 0.1 to 10 weight % sodium lauryl sulfate, e.g., 0.1 to 5 weight % o sodium lauryl sulfate, e.g., 0.1 to 2 weight % sodium lauryl sulfate, e.g., 0.5 to 2 weight % sodium lauryl sulfate, e.g., 1 .5 weight % sodium lauryl sulfate.

[0036] An abrasive removes debris and surface stains. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise 5 to 70 weight % of an abrasive, e.g., 5 to 60 weight % of an abrasive, e.g., 5 to 50 weight % of an abrasive, e.g., 5 to 40 weight % of an abrasive, e.g., 5 to 30 weight % of an abrasive, e.g., .10 to 30 weight % of an abrasive, e.g., 10 to 20 weight % of an abrasive.

[0037] Abrasives that may be used in the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, include, for example, a calcium phosphate abrasive, e.g., tricalcittm phosphate (Ca₃(PQ₄)₂), hydroxyapatite (Ca₁₀(PO₄)6(OH)₂), dicalcium phosphate dihydrate (CaHP0₄ 2¾0, also sometimes referred to herein as DiCal), calcium pyrophosphate, and mixtures thereof. Calcium carbonate, e.g., precipitated calcium carbonate, may also be employed as an abrasive.

[0Θ38] Other abrasives that may be used in the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, include, for example, silica abrasives such as precipitated silicas having a mean particle size of up to about 20 microns, such as Zeodent 115®, marketed by J. M, Huber, as well as sodium metaphosphate, potassium metaphosphate, aluminum silicate, calcined alumina, bentonite or other siliceous materials, or mixtures thereof. Silica abrasives used herein, as well as the other abrasives, may have an average particle size ranging between about 0.1 and about 30 microns, e.g., between about 5 and about 15 microns. The silica abrasives may be from precipitated silica or silica gels, such as the silica xerogels described in U.S. Patent No. 3,538,230 to Pader et al. and U.S. Patent No. 3,862,307 to Digiulio. Particular silica xerogels are marketed under the trade name Syloid® by the W. R. Grace & Co. Davison Chemical Division. Precipitated silica materials include those marketed by the J. M. Huber Corp, under the trade name Zeodent®, including the silica carrying the designation Zeodent 115 and 119. Those silica abrasives are described in U.S. Patent No. 4,340,583 to Wason.

[0039] In some embodiments, abrasives that may be used in the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, include silica gels and precipitated amorphous silica having an oil absorption value of about less than about 100 cc/100 g silica and in the range of about 45 cc/100 g to about 70 cc/100 g silica. Oil absorption values are measured using the ASTA Rub-Out Method D281. In some embodiments, the silica comprises colloidal particles having an average particle size of about 3 microns to about 12 microns, and about 5 to about 10 microns.

[0040] In some embodiments, the abrasive comprises a large fraction of very small particles, e.g., having a d50 less than about 5 microns, e.g., small particle silica (SPS) having a d50 of about 3 to about 4 microns, e.g., Sorbosil AC43® (Ineos). Such small particles may be used in formulations targeted at reducing hypersensitivity. The small particle component may be present in combination with a second larger particle abrasive.

[0041 ] Low oil absorption silica abrasives that may be used in the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, are marketed under the trade designation Sylodent WXA© by Davison Chemical Division of W.R. Grace & Co., Baltimore, Md. 21203. Sylodent 650 XWA®, a silica hydrogel composed of particles of colloidal silica having a water content of about 29% by weight averaging about 7 to about 10 microns in diameter, and an oil absorption of less than about 70 cc/100 g of silica is an example of a low oil absorption silica abrasive that may be used in the oral care compositions disclosed herein, e.g.. Composition 1, e.g., 1 .1-1.61.

[0Θ42] In some embodiments, the oral care composition disclosed herein, e.g., Composition 1, e.g, 1 ,1 -1.61 , comprise a high cleaning silica. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1 - 1.61 , comprise 5 to 70 weight % high cleaning silica, e.g., 5 to 60 weight % high cleaning silica, e.g., 5 to 50 weight % high cleaning silica, e.g., 5 to 40 weight % high cleaning silica, e.g., 5 to 30 weight % high cleaning silica, e.g., 10 to 30 weight % high cleaning silica, e.g., 10 to 20 weight % high cleaning silica.

[0043] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, comprise a sweetener. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1 ,1 -1.61 , comprise 0.005 to 10 weight % of a sweetener, e.g., 0.01 to 10 weight % of a sweetener, e.g., 0.1 to 10 weight % of a sweetener, e.g., from 0.1 to 5 weight % of a sweetener, e.g., from 0.1 to 3 weight % of a sweetener, e.g., f om 0.1 to 1 weight % of a sweetener, e.g., from 0.1 to 0.5 weight % of a sweetener. Sweeteners that may be used in the oral care compositions disclosed herein, e.g.. Composition 1 , e.g., 1 .1-1.61 , include, for example, sucrose, glucose, saccharin, sucralose, dextrose, ievulose, lactose, mannitol, sorbitol, fructose, maltose, xylitol, saccharin, salts (e.g., sodium saccharin), thaurnatin, aspartame, D- iryptophan, dihydrochaicones, acesulfame, cyclamate salts, and mixtures thereof. In some embodiments, sodium saccharin is used as the sweetener in the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1 -1 .61 . In some embodiments, the oral care compositions disclosed herein, e.g., Composition I , e.g., 1.1-1.61, comprise 0.005 to 10 weight % sodium saccharin, e.g., 0.01 to 10 weight % sodium saccharin, e.g., 0.1 to 10 weight % sodium saccharin, e.g., from 0.1 to 5 weight % sodium saccharin, e.g., from 0.1 to 3 weight % sodium saccharin, e.g., from 0.1 to 1 weight % sodium saccharin, e.g., from 0.1 to 0.5 weight % sodium, saccharin.

[0044] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61 , comprise a flavorant. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1 .1-1.61, comprise 0.1 to 5 weight % of a flavorant, e.g., 0.1 to 4 weight % of a flavorant, e.g., 0.1 to 3 weight % of a flavorant, e.g., 0.1 to 2 weight % of a flavorant, e.g., 0.5 to 2 weight % of a flavorant, e.g., 0.6 to 2 weight % of a flavorant, e.g., 0.7 to 2 weight % of a flavorant, e.g., 0.8 to 2 weight % of a flavorant e.g., 0.9 to 2 weight % of a flavorant, e.g., 1 to 2 weight % of a flavorant. F!avorants that may be used in the oral care compositions disclosed herein, e.g.. Composition 1, e.g., 1.1-1 .61 , include, for example, essential oils, as well as various flavoring aldehydes, esters, alcohols, and similar materials, as well as menthol, carvooe, and anethoie, as well as mixtures thereof. Examples of essential oils include oils of spearmint, peppermint, wintergreen, sassafras, clove, sage, eucalyptus, marjoram, cinnamon, lemon, lime, grapefruit, and orange. In some embodiments, a mixture of peppermint, oil and spearmint oil is used as the flavorant in the oral care compositions disclosed herein, e.g., Compositio 1 , e.g., 1.1-1.61.

[0045] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, comprise a visual aid, including but not limited to a pigment, a dye, speckles, beads, strips, and mixtures therof. In some embodiments, the oral, care compositions disclosed herein, e.g., Composition L e.g., 1.1-1.61 , comprise 0.001 to 20 weight % of a pigment, e.g., 0.01. to 20 weight % of a visual aid, e.g., 0.01. to 20 weight % of a visual aid, e.g., 0.1 to 20 weight % of a visual aid, e.g., 0.1 to 10 weight % of a visual aid, e.g., 0.1 to 5 weight % of a visual aid, e.g., 0.1 to 3 weight % of a visual aid, e.g., 0.1 to .1 weight % of a visual aid. In some embodiments, the oral care compositions disclosed herein, e.g., Composition I, e.g., 1.1- 1.61 , comprise titanium dioxide. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1 -1.61 , comprise 0.00.1 to 20 weight % titanium dioxide, e.g., 0.01 to 20 weight % titanium dioxide, e.g., 0.01 to 20 weight % titanium dioxide, e.g., 0.1 to 20 weight % titanium dioxide, e.g., 0.1 to .10 weight % titanium dioxide, e.g., 0.1 to 5 weight % titanium dioxide, e.g., 0.1 to 3 weight % titanium dioxide, e.g., 0.1 to I weight % titanium dioxide. [0046] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1 .1-1.61 , further comprise an anti-caries agent, hi some embodiments, the oral care compositions disclosed herein, e.g., Composition. 1, e.g., .1.1-1.61, comprise 0.005 to 10 weight % of the anti-caries agent, e.g., 0.01 to 10 weight % of the anti-caries agent, e.g., 0.01 to 5 weight % of the anti-caries agent, e.g., 0.01 to 1 weight % of the anti-caries agent, e.g., 0.01 to 0.3 weight % of the anti-caries agent, e.g., 0.1 to 10 weight % of the anti-caries agent, e.g., 0.1 to 5 weight % of the anti-caries agent, e.g., 0.1 to 2 weight % of the anti-caries agent, e.g., 0.1 to 1 weight % of the anti-caries agent, e.g., 0.1 to 0.8 weight % of the anti-caries agent, e.g., 0.1 to 0.6 weight % of the anti-caries agent, e.g., 0.1 to 0.5 weight % of the anti-caries agent. In some embodiments, the anti -caries agent is a fluoride ion source. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, further comprise 0.005 to 10 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.01 to 10 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.01 to 5 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.01 to 1 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.01 to 0.3 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 10 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 5 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 2 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 1 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 0.8 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 0.6 weight % of the anti-caries agent which is a fluoride ion source, e.g., 0.1 to 0.5 weight % of the anti-caries agent which is a fluoride ion source. Examples of fluoride ion sources that may be used in the oral compositions disclosed herein, e.g., Composition 1, e.g., 1.1- 1 ,61 , are found m U.S. Patent No. 3,535,421 to Briner et al; U.S. Patent No. 4,885,155 to Parran, Jr. et al,, and U.S. Patent No. 3,678,154 to Widder et al. Other examples of fluoride ion sources include, for example, stannous fluoride, sodium fluoride, potassium fluoride, sodium monofluorophosphate, sodium fluorosilicate, ammonium ffuorosilicate, amine fluoride (e.g., N - octadecyltrimethylendiamine-N,N,N^,-tris(2-ethanol)-dihydrofluoride), ammonium fluoride, titanium fluoride, hexafluorosulfate, and combinations thereof. In certain embodiments the fluoride ion source includes stannous fluoride, sodium fluoride, and sodium monofluorophosphate, as well as mixtures thereof. In some embodiments, the anti-caries agent is sodium fluoride. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., i .1-1.61 , comprise 0.005 to 10 weight % sodium fluoride, e.g., 0.01 to 10 weight % sodium fluoride, e.g., 0.01 to 5 weight % sodium fluoride, e.g., 0.01 to 1 weight % sodium fluoride, e.g., 0.01 to 0.3 weight % sodium fluoride, e.g., 0.1 to 10 weight % sodium, fluoride, e.g., 0.1 to 5 weight % sodium fluoride, e.g., 0.1 to 2 weight % sodium fluoride, e.g., 0.1 to 1 weight % sodium fluoride, e.g., 0.1 to 0.8 weight % sodium fluoride, e.g., 0.1 to 0.6 weight % sodium fluoride, e.g., 0.1 to 0.5 weight % sodium fluoride.

[0047] In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., 1.1-1.61, comprise the anti-caries agent which is a fluoride ion source in an amount sufficient to supply 25 pprn to 25,000 ppm of fluoride ions, e.g., from 100 to 20,000 pprn of fluoride ions, e.g., from 300 to 15,000 ppm of fluoride ions, e.g., from 500 to 10,000 ppm of fluoride ions, e.g., from 500 to 8,000 ppm of fluoride ions, e.g., from 500 to 6,000 ppm of fluoride ions, e.g., from 500 to 4,000 ppm of fluoride ions, e.g., from. 500 to 2,000 ppm of fluoride ions, e.g., from 500 to 1 ,800 ppm of fluoride ions, e.g., from 1000 to .1600 pprn, e.g., 1450 ppm of fluoride ions. The appropriate level of fluoride ions will depend on the particular application. In some embodiments, a toothpaste for consumer use comprises the anti-caries agent which is a fluoride ion. source in an amount sufficient to supply from 1,000 to 1,500 ppm of fluoride ions, with pediatric toothpaste having somewhat less. In some embodiments, a dentifrice or coating for professional application comprises the anti-caries agent which is a fluoride ion source in an amount sufficient to supply from 5,000 to 25,000 ppm of fluoride ions,

[0048] I some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61 , comprise an anti-bacterial or anti-attachment agent. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61 , comprise 0.01 to 10 weight % of an anti-hacteriai, e.g., 0.1 to 10 weight % of an anti-bacterial, e.g., 0.5 to 5 weight % of an anti-bacterial, e.g., 0.01 to 5 weight % of an anti-bacterial, e.g., 0.05 to 4 weight % of an anti-bacterial, e.g., 0.05 to 3 weight % of an anti-bacterial, e.g., 0.05 to 2 weight % of an antibacterial, e.g., 0.05 to 1 weight % of an anti-bacteriai, e.g., 0.1 to 1 weight % of an anii- bacterial, e.g., 0.1 to 0.5 weight % of an anti-bacterial. The amount of the anti-bacterial will vary depending on the type of oral care composition, with levels used in toothpaste being, for example, 5 to 15 times greater than used in mouthwash. For example, a mouthwash comprising triciosan may comprise, e.g., 0.03 weight % triclosan while a toothpaste comprising triclosan toothpaste may comprise 0.3 weight % triclosan. Examples of anti-bacteriais that may be used in the oral compositions disclosed herein, e.g., Composition 1 , e.g., 1.1 - 1.61 , include, for example, halogenated diphenyl ether (e.g. triclosan), herbal extracts and essential oils (e.g., rosemary extract, tea extract, magnolia extract, thymol, menthol, eucalyptol, geranioi, carvacroi, citral, hinokitoi, catechol, methyl salicylate, epigallocatechin gailate, epigallocatechin, gallic acid, miswak extract, sea-buckthorn extract), bisguanide antiseptics (e.g., chiorhexidine, aiexidine or octenidine), quaternary ammonium compounds (e.g., cetyipyridinium chloride (CPC), benzalkonium chloride, tetradecylpyri<Htuum chloride (TPC), N~tetrad.ecyi-4~ethylpyridirnurn chloride (TDEPC)), phenolic antiseptics, hexetidine, octenidine, sangumarine, povidone iodine, delmopiriol, salifluor, metal ions (e.g., zinc salts, for example, zinc citrate, stannous salts, copper salts, iron salts), sangumarine, propolis and oxygenating agents (e.g., hydrogen peroxide, buffered sodium peroxyborate or peroxycarbonate), phtlialic acid and its salts, monoperthalic acid and its salts and esters, ascorby! stearate, o!eoy! sarcosine, alkyl sulfate, dioctyl sulfosuccinate, saiicyianilide, domiphen bromide, delmopinol, octapinoi and other piperidi.no derivatives, nicin preparations, chlorite salts, methyl hydroxybenzoate, and mixtures thereof. in some embodiments, the anti-bacterial is triclosan. In some embodiments, the oral care compositions disclosed herein, e.g., Composition 1 , e.g., .1.1-1.61, comprise 0.01 to 10 weight % triclosan, e.g., 0.1 to 10 weight % triclosan, e.g., 0.5 to 5 weight % triclosan, e.g., 0.01 to 5 weight % triclosan, e.g., 0.05 to 4 weight % triclosan, e.g., 0.05 to 3 weight % triclosan, e.g., 0.05 to 2 weight % triclosan, e.g., 0.05 to 1 weight % triclosan, e.g., 0.1 to 1 weight % triclosan, e.g., 0.1 to 0.5 weight % triclosan.

[0049] A whitening agent whitens a tooth to which it is applied, in some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61 , comprise a whitening agent, hi some embodiments, the oral care compositions disclosed herein, e.g., Composition 1, e.g., i .1-1.61 , comprise a whitening agent in a dental surface-whitening effective amount, e.g., 0.1 to 90 weight % whitening agent, e.g., 0.5 to 50 weight % whitening agent, e.g., 1 to 30 weight % whitening agent, e.g., 2 to 10 weight % whitening agent. Examples of whitening agents thai may be used in the oral compositions disclosed herein, e.g., Composition 1, e.g., 1.1-1.61, include, for example, peroxides, metal chlorites, perborates, percarbonates, peroxyacids, hypochlorites, and mixtures thereof. In some embodiments, the whitening agent is hydrogen peroxide or a hydrogen peroxide source, for example, urea peroxide or a peroxide salt or complex (for example, peroxyphosphate, peroxycarbonate, perborate, peroxysilicate, or persulphate salts; for example calcium peroxvphosphate, sodium perborate, sodium carbonate peroxide, sodium peroxvphosphate, and potassium persulfate), or a hydrogen peroxide polymer complex (for example, a peroxide-polyvinyl pyrrolidone polymer complex).

[0050] in some embodiments, an oral care composition disclosed herein comprises:

Ingredient %

70% Sorbitol 20

99.0% - 101.0% Glycerin 20

Water Q.S.

High Cleaning Silica 10

Gantrez S-97 (B.F.) - Liquid (13% 15

assay)

Abrasive Silica 8.8

Thickening Silica 2.7

Phosphate/acrylate polymer (as a.i.) 0.4 - 2.4

Sodium Lauryi Sulfate 1.5

Sodium Hvdroxide 0 - 1.2

Sodium CMC - Type 12 1.1

Flavor 1.0 - 1.2

Titanium Di oxide 0.75

Propylene Glycol 0.5

Carrageenan Gum 0.48

Triclosan USP 0.3

Sodium Saccharin 0.3 le embodiments, an oral care composition disclosed herein comprises: ingredient %

70% Sorbitol 14

99.0% - 101.0% Glycerin 17

Water Q.S.

High Cleaning Silica 17

Gantrez S-97 (B.F.) - Liquid (13% 17

assay)

Thickening Silica 2.7

Phosphate/acrylate polymer (as a.i.) 0.4 - 2.4

Sodium Lauryi Sulfate 1.5

Sodium Hydroxide 0 - 1.2

Sodium CMC - Type 12 1.1

Xanthan Gum 0.8

Flavor 1.0 -1.2

Titanium Dioxide 0.5 Propylene Glycol 0,5

Carrageenan Gum 0,48

Triclosan USP 0.3

Sodium Saccharin 0.3

Sodium Fluoride 0.243

[0052} In some embodiments, an oral care composition disclosed herein comprises:

[0053} Any of the preceding oral care compositions, wherein the composition is a mouthwash, toothpaste, tooth gel, tooth powder, non-abrasive gel, mousse, foam, mouth spray, lozenge, oral tablet, dental implement, or pet care product.

[0054} Any of the preceding oral care compositions, wherein the composition is a mouthwash.

[0055] Any of the precedmg oral care compositions, wherein the composition is a toothpaste.

[0Θ56] Further provided is a method (Method A) for the treatment and/or inhibition of a chemical slain, plaque, and/or tartar on a dental surface, comprising contacting the dental surface with any of the preceding oral care composi tions.

[0057] Further provided herein is Method A as follows: A.1 Method A wherein the composition is Composition 1 , e.g., 1.1 - 1.61.

A.2 Method A. or A.l wherein the method is for the treatment of a chemical stain, plaque, acid erosion, and/or tartar on the dental surface.

A.3 Method A.2 wherein the method is for the treatment of a chemical stain on the dental surface.

A.4 Method A.2 wherem the method is for the treatment of plaque on the dental surface.

A.5 Method A.2 wherein the method is for the treatment of acid erosion on the dental surface.

A.6 Method A.2 wherem the method is for the treatment of tartar on the dental surface,

A.7 Method A or A.l wherein the method is for the inhibition of a chemical stain, plaque, and/or tartar on the dental surface.

A.8 Method A.7 wherein the method is for the inhibition of a chemical stain on the dental surface.

A.9 Method A.7 wherein the method is for the inhibition of plaque on the dental surface.

A .10 Method A .7 wherein the method is for the inhibition of acid erosion on the dental surface.

A.11 Method A.7 wherein the method is for the inhibition of tartar on the dental surface,

A.12 Method A or A.1 - A, 11 wherem the dental surface is a human tooth,

A.13 Method A or A.l -A.12 wherein the composition is contacted with the dental surface by brushing.

[0058] Further provided is a method (Method B) for the treatment and/or inhibition of gum. disease comprising contacting the oral cavity with any of the preceding oral care compositions.

[0059] Further provided herein is Method B as follows:

B. l Method B wherein the composition is Composition 1, e.g., 1 .1-1.61.

B.2 Method B or B.l wherein the method is for the treatment of gum disease.

B.3 Method B, B.l, or B.2 wherein the gum disease is gingivitis.

B.4 Method B, B.l, or B wherein the gum disease is periodontitis. B.5 Method B or B.1 wherem the method is for the inhibition of gum disease.

B.6 Method B, B.l, or B.5 wherem the gum disease is gingivitis.

B.7 Method B, B.l, or B.5 wherem the gum disease is periodontitis.

B.8 Method B or B.1-B.7 wherein the oral cavity is a human oral cavity.

B.9 Method B or B.l -B.8 wherein the composition is contacted with the oral cavity by brushing.

[0060] Further provided is a method (Method C) for the treatment and/or inhibition of halitosis comprising contacting the oral cavity with any of the preceding oral care compositions.

[0061 J Further provided herein is Method C as follows:

C. l Method C wherein the composition is Composition 1, e.g., 1.1-1.61.

C.2 Method C or C.1 wherein the oral cavity is a human oral cavity,

C.3 Method C, C. l, or C.2 wherein the composition is contacted with the oral cavity by brushing.

[0062] Further provided is a method (^"Method D) for inhibiting biofi!ni formatio on a dental surface comprising contacting the dental surface with any of the preceding oral care compositions.

[0063] Further provided herein is Method D as follows:

D. l Method D wherem the composition is Composition 1 , e.g., 1.1 -1.61.

D.2 Method D or D.l wherein the dental surface is a human tooth.

D.3 Method D, D.l, or D.2 wherein the composition is contacted with the dental surface by brushing.

[0Θ64] Further provided is a method (Method E) for treating and/or inhibiting bacteria from sticking together and growing into bigger colonies in an oral cavity comprising contacting the oral cavity with any of the preceding oral care compositions.

[0065] Further provided herein is Method E as follows:

E. l Method E wherein the composition is Composition 1, e.g., 1.1-1.61.

E.2 Method E or E.l wherein the oral cavity is a human oral cavity.

E.3 Method E, E.l, or E.2 wherein the composition is contacted with the oral cavity by brushing.

[0066] Further provided is a use (Use A) of any of the preceding oral care compositions for the treatment and/or inhibition of a chemical stain, plaque, and/or tartar on a dental surface. [0067] Further provided herein is Use A as follows:

A.1 Use A wherem the composition is Composition 1 , e.g., 1.1-1.61.

A.2 Use A or A. l wherein the use is for the treatment of a chemical stain, plaque, acid erosion, and/or tartar on the dental surface.

A3 Use A.2 wherein the use is for the treatment of a chemical stain on the dental surface,

A.4 Use A.2 wherein the use is for th e treatment of plaque on the dental surface.

A.5 Use A2 wherein the use is for the treatment of acid erosion on the dental surface. A .6 Use A.2 wherein the use is for the treatment of tartar on the dental surface.

A.7 Use A or A.1 wherem the use is for the inhibition of a chemical stain, plaque, acid erosion, and/or tartar on the dental surface.

A.8 Use A.7 wherein the use is for the inhibition of a chemical stain on the dental surface.

A.9 Use A.7 wherein the use is for the inhibition of plaque on the dental surface.

A.10 Use A.7 wherein the use is for the inhibition of acid erosion on the dental surface. A.11 Use A.7 wherein the use is for the inhibition of tartar on the dental surface.

A.12 Use A or A.1-A.1 1 wherein the dental surface is a human tooth.

A.13 Use A or A.1-A.12 wherein the composition is contacted with the dental surface by brushing.

[0068] Further provided is a use (Use B) of any of the preceding oral care compositions for the treatment and/or inhibition of gum disease in an oral cavity.

[0Θ69] Further provided herein is Use B as follows:

B. l Use B wherein the composition is Composition 1 , e.g., 1.1 -1 .61.

B.2 Use B or B.1 wherein the use is for the treatment of gum disease.

B.3 Use B, B.1 , or B.2 wherein the gum disease is gingivitis.

B.4 Use B, B.l, or B wherein the gum disease is periodontitis.

B.5 Use B or B.l wherein the use is for the inhibition of gum disease.

B.6 Use B, B.l , or B.5 wherein the gum disease is gingivitis.

B.7 Use B, B.l, or B.5 wherein the gum disease is periodontitis.

B.8 Use B or B. l -B.7 wherein the oral cavity is a human oral cavity. B.9 Use B or B.1-B.8 wherem the composition is contacted with the oral cavity by brushing.

[0070] Further provided is a use (Use C) of any of the preceding oral care compositions for the treatment and/or inhibition of halitosis in an oral cavity.

[0071 ] Further provided herein is Use C as follows:

C. l Use C wherein the composition is Composition 1, e.g., 1.1-1.61.

C.2 Use C or C.l wherein the oral cavity is a human oral cavity.

C.3 Use C, C.l, or C.2 wherein the composition is contacted with the oral cavity by brushing.

[0072] Further provided is a use (Use D) of any of the preceding oral care compositions for the inhibition of biofiira formation on a dental surface.

[0073] Further provided herein is Use D as follows:

D.1 Use D wherein the composition is Composition 1 , e.g., 1.1-1.61.

D.2 Use D or D.1 wherein the oral cavity is a human oral cavity.

D.3 Use D, D.l, or D.2 wherein the composition is contacted with the oral cavity by brushing.

[0074] Further provided is a use (Use E) of any of the preceding oral care compositions for treating and/or inhibiting bacteria from sticking together and growing into bigger colonies in an oral cavity,

[0Θ75] Further provided herein is Use E as follows:

E. l Use E where in the composition is Composition 1 , e.g., 1 ,1 -1.61 .

E.2 Use E or E.l wherein the oral cavity is a human oral cavity,

E.3 Use E, E. l , or E.2 wherem the composition is contacted with the oral cavity by brushing.

[0076] As used herein, "inhibition" refers to reduction of stains that would otherwise form or develop subsequent to the time of the treatment. Such inhibition can range from a small but observable or measurable reduction to complete inhibition of subsequent staining, by comparison with an untreated or placebo-treated dental surface.

[0077] Where the dental surface is substantially free of chemical stains, Method A, e.g., A.1- A.10, and Use B, e.g., B.1 -B.10, are effective to inhibit formation and development of new chemical stains, as can occur for example by oral use of tobacco products (including smoking) or by drinking tea, coffee, red wine, or coke, subsequent to treatment according to the method. Where the dental surface already possesses some degree of chemical staining, Method A, e.g., A.1 -A.10, and Use B, e.g., B.1-B.10, are effective to inhibit further development of the existing stain. In some embodiments, the Method A, e.g., A.1-A.10, and Use B, e.g., B.1-B.10, can remove, partially or completely, an existing chemical stain as well as inhibit subsequent staining, [0Θ78] Also provided is a method of forming any of the compositions 1.1-1.61 as a mouth rinse that includes the phosphate/acrylate co-polymer and the synthetic anionic linear pofycarboxyfate polymer as well as a zinc salt and a cationic antibacterial agent. The method can form a stable composition thai is stable and transparent. The method comprises the following steps:

(I) mixing water, surfactant, and a cationic antibacterial agent (such as CPC) in a mixing tank to form a main mix;

( ) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water, the the phosphate/acrylate co-polymer, and polyols (such as glycerin and/or sorbitol) to form a first premix,

(III) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water first with the zinc salt (such as water soluble zinc salt, such as zinc chloride) and then adding the synthetic anionic linear poiycarboxyiate polymer (Gantrez) to form a second premix,

(IV) mixing the first premix into the main mix,

[0079] Any additional materials, such as sweeteners, fluoride, colorants, and preservatives can be added to the main mix prior to the premixes being added.

EXAMPLES

Example 1 - Stain Preves¾tion Efficacy

[0080] Sample composition with phosphate/acrylate polymer are shown in Table 2.

Table 2

Water Q.S.

High Cleaning Silica 10

Abrasive Silica 8.8

Thickening Silica 2,7

Phosphate/acrylate polymer (as a.i.) 0.4 - 2.4

Gantrez (as a.i.) 0 - 2

Tetrasodium Pyrophosphate (sodium 0 - 2

pyrophosphate)

Sodium Tripolyphosphate 0 - 3

Sodium Lauryl Sulfate 1.5

Sodium Hydroxide 0 - 1.2

Sodium CMC - Type 12 1.1

Flavor 1 - 1.2

Titanium Dioxide 0.75

Propylene Glycol 0.5

Carrageenan Gum 0.48

Sodium Saccharin 0.3

Sodium Fluoride 0.243

[0081] In vitro stain inhibition testing is conducted on hydroxyapatite discs (HAP discs). The efficacy is quantified by measuring the light reflected from the surface of the HAP disc after treatment of the HAP disc with a 1 :2 dentifrice/water slurry and subsequent exposure to a staining agent, in this case, coffee. The measurement is taken with a chromameter and L a b value recorded. The HAP disc is first soaked in saliva overnight and baseline whiteness is measured, next it is treated with 1 :2 dentifrice/water slurry for 5 minutes and the initial L a b is recorded. The HAP disc is then exposed to a coffee for 15 mmutes, rinsed with distilled ionized water and incubated in saliva for 20 minutes. The above staining process is repeated for a total of three times and the final L a b is read. This value is compared to the initial L a b to quantif the dentifrice inhibition of the coffee stain formation on the HAP disc. The lower the delta L*, the better stain inhibition effect provided by the dentifrice. The results are displayed in Table 3.

Table 3 - In vitro stain inhibition

[0082] All dentifrices with the phosphate/acrylate polymer show improved anti-stain efficacy than Control Toothpaste 1, some are comparable to or even better than the positive control of commercialized silica-base Control Toothpaste 2 which contains phosphate salts. The results also show a dose response of phosphate/acrylate polymer with anti-stain efficacv and 2.4% phosphate/acrylate polymer (as a.i.) shows the most anti-stain efficacy. The dentifrice with a combination of phosphate/acrylate polymer and Gantrez delivers similar anti-stain efficacy as the 2.4% phosphate/acrylate polymer alone.

[0083] Phosphate salts are also formulated together with this phosphate/acrylate polymer into dentifrice to further enhance efficacy. The test results are shown in Table 4. The results show phosphate salts further enhance the anti-stain efficacy compared to formulae with phosphate/acrylate polymer only and achieve comparable efficacy to both 2.4% phosphate/acrylate polymer (as a.i.) and 0.4% phosphate/acrylate polymer (as a.i.) plus 2% Gantrez.

Table 4 - Stain Prevention in Dentifrice

Example 2 - Stable Mouthwash with Incompatible Materials

[0084] A stable mouthwash as evidenced by low turbidity that contains incompatible ingredients can be prepared. A cationic material can be included with the phosphate/acrylate polymer by inclusion of synthetic anionic linear polycarboxylate polymer. The cationic material is cetylpyridinium chloride. Test mouthwashes are prepared as below in Table 5. Each contain 0.1 weight % CPC and 0.08 weight % zinc chloride.

Table 5

Formulation Materials (weight %)

A 0.1% CPC, 0.08% zinc chloride, 0% Gantrez, 0.3125-2.5% phosphate/acrylate polymer (specific example 1.25%) B 0.1% CPC, 0.08% zinc chloride, 1% Gantrez, 0.3125-1% phosphate/acrylate polymer (specific example 0.625%)

C 0.1% CPC, 0.08% zinc chloride, 1% Gantrez, 1.25-2% phosphate/acrylate polymer (specific example 1.25%)

[0085] The formulas above are prepared by creating three premixes to add to a main mixing tank. In a main mixing tank, water, surfactants, sweeteners, fluoride, CPC, potassium sorbate, and dye are added and mixed. A first premix is prepared with the phosphate/acrylate polymer, 15% of the total water, and polyols (glycerin and sorbitol). This premix is added to the main mix tank. A second premix is prepared with zinc chloride, 1 % of the total water, and the Gantrez. This premix is added to the main mix tank. A third premix is prepared with propylene glycol, cooling agents and/or flavoring agents. This premix is then added to the main mixing tank.

[0086] Turbidity for commercial products is typically 0-13NTU. Turbidity is measured using a Hach turbidity meter at 25°C after 24 hours of making the composition. Turbidity is the cloudiness or haziness of a fluid caused by individual particles (suspended solids) that are generally not perceptible to the naked eye.

[0Θ87] Formulations under A were all turbid. Formulations under B were all Turbid. Formulations under C had acceptable turbidity, which means that the materials are stable together and do not precipitate out. Table 6 below has the turbidity measurements for the representative samples for A, B, and C.

Table 6

j0088j As can be seen in Table 6, formulations A without the combination of the phosphate/acrylate polymer and the synthetic anionic linear po!yearboxy!aie polymer were turbid. Formulations B with a low level of phosphate/acrylate polymer were also turbid. Formulations C with a sufficient amount of phosphate/acrylate polymer with the synthetic anionic linear polycarboxylate polymer were able to stabilize the specific amount of CPC and zinc chloride.

Claims

1. An oral care composition comprising a phosphate/acrylate co-polymer, a synthetic anionic linear poly carboxy late polymer, and an orally acceptable carrier.

2. The composition of claim 1, wherein the composition comprises 0.1 to 10 weight % phosphate/acrylate co-polymer.

3. The composition of claim 1 or 2, wherein the composition comprises 0.01 to 30 weight % synthetic anionic linear polycarboxylate.

4. The composition of any foregoing claim, wherein the synthetic anionic linear ■polycarboxylate is a copolymer of maleic anhydride or acid and methyl vinyl ether.

5. The composition of any foregoing claim, wherein the synthetic anionic linear polycarboxylate is 1 :4 to 4:1 copolymer of methyl vinyl ether and maleic anhydride, wherein the anhydride is hydrolyzed after co-polymerization to provide the acid, having a weight average molecular weight (M.W.) of about 30,000 to about 1 ,000,000 Da.

6. The composition of any foregoing claim which is a toothpaste comprising a silica abrasive.

7. The composition of any foregoing claim, wherein the composition comprises an anti- bacteriaily effective amount of an antibacterial agent selected from the group consisting of triciosan, cetylpyridinium chloride (CPC), chlorhexidine (CHX), stannous salts, water soluble zinc salts, water insoluble zinc compounds, zinc oxide, zinc citrate, or a mixture thereof, optionally the antibacterial agent is triclosan.

8. The composition of any foregoing claim, wherein the phosphate/acrylate co-polymer is a co-polymerized product of a mixture of acrylic acid, methacrylic acid, and 2- hydroxyethyi methacr iate phosphates of Formula 1 :

wherein n is 0, 1 or 2.

9. The composition of claim 8, wherein the phosphate/acrylate co-polymer is a co- polymerized product of a mixture of acrylic acid, methacrylic acid, and 2 -hydroxy ethyl methacrylate phosphates of Formula 1 comprising acrylic acid in a molar percentage of 70-90%; methacrylic acid in a molar percentage of 5-20%, and hydroxy ethyl methacrylate phosphates of Formula I in a molar percentage of 1-10%),

10. The composition of claim 8 or 9, wherem the phosphate/acrylate co-polymer is a co- polymerized product of a mixture of acrylic acid, methacrylic acid, and 2 -hydroxy ethyl methacrylate phosphates of Formula 1 comprising acrylic acid in a molar percentage of 80-90% or 85%; methacrylic acid in a molar percentage of 5-15% or 11%, and hydroxyethvl methacrylate phosphates of Formula 1 in a molar percentage of 2-6% or 4%.

1 1 . The composition of any preceding claim, wherein the phosphate/acrylate copolymer is a random copolymer having a weight average molecular weight of 10,000 to 500,000, and the phosphate/acrylate copolymer is below it glass transition temperature.

12. The composition of claim 11, wherem the weight average molecular weight is 10,000 to 200,000 grams per mole, optionally, 10,000 to 40,000, 15,000 to 25,000, or 17,000 to 23,000 grams per mole.

13. The composition of any foregoing claim which is a toothpaste or a mouthwash .

14. A method for the treatment and/or inhibition of a chemical stain, plaque, acid erosion, and/or tartar on a dental surface, comprising contacting the dental surface with a composition of any of the foregoing claims.

15. A use of any of the compositions of claims 1-13 for the treatment and/or inhibition of a chemical stain, plaque, acid erosion, and/or tartar on a dental surface.

16. A method for the treatment and/or inhibition of gum disease comprising contacting the oral cavity with a composition, of any of claims 1-13.

17. A use of any of the compositions of claims 1-13 for the treatment and/or inhibition of gum disease in an oral cavity.

18. A method for the treatment and/or inhibition of halitosis comprising contacting the oral cavity with a composition of any of claims 1-13.

19. A use of any of the compositions according to any of claims 1-13 for the treatment and/or inhibition of halitosis in an oral cavity. A method for the inhibition of biofilm formation on a dental surface comprising contacting the oral cavity with a composition of any of claims .1 -1.3.

A use of any of the compositions according to any of claims 1-13 for the inhibition of biofilm fomiation on a dental surface.

A method for treating and/or inhibiting bacteria from, sticking together and growing into bigger colonies in an oral cavity comprising contacting the oral ca vity with a composition of any of claims 1-13.

A use of any of the compositions according to any of claims 1-13 for treating and/or inhibiting bacteria from sticking together and growing into bigger colonies in an. oral cavity.

A method of forming the composition of any of claims 1-13 as a mouth rinse that includes a zinc salt and a catio ic antibacterial agent comprising:

(VII) mixing water, surfactant, and a cationic antibacterial agent in a mixing tank to form a main mi ;

( V 111 ) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water, the phosphate/acrylate co-polymer, and a polyol to form a first premix,

(IX) mixing 10-20 weight % of the total water, optionally 14-16 or 15 weight % of the total water first with the zinc and then adding the synthetic anionic linear polycarboxylate polymer (Gantrez) to form a second premix,

(X) mixing the first premix into the main mix,

(XI) after the first premix is added, mixing the second premix into the main mix, {XI I ) optionally, mixing flavor and/or cooling agents with a glycol to form a third premix and adding the third premix to the main mix after the second premix is added.

The method of claim 23, wherein the cationic antibacterial active is eetylpyridinium chloride and the zinc salt is zinc chloride.