Solid-layered bleach compositions and methods of use

A method for cleaning dentures, said method comprises:

• contacting said dentures with a solid, multi-layered composition in water, wherein said composition comprises at least a first part and a second part;
• wherein said first part consisting essentially of,
• a) 0.001%-50% by weight of a hypochlorite selected calcium hypochlorite, magnesium hypochlorite and mixtures thereof;
• b) a builder selected from the group consisting of carbonate, bicarbonate, sesquicarbonate and mixtures thereof;
• c) a water-soluble polymer selected from the group consisting of a polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polyquaternary ammonium salts, copolymers and mixtures thereof;
• d) at least 30% by weight of an acid selected from the group consisting of sulfonic acid, polysulfonic acid, carboxylic acid, dicarboxylic acid, polycarboxylic acid, acid sulfate, acid phosphate, phosphonic acid, and mixtures thereof;
• e) optionally, a filler selected from group consisting of chloride, sulfate, phosphate, silicate, borate, nitrate, chlorate, aluminate, silica-aluminate, hydroxide, and oxide compounds of alkali metals, alkaline earths, aluminum, zinc and tin including hydrates, mono, di and tribasic compounds, mixed salts, borates, clays, zeolites and mixtures thereof;
• f) optionally, a water-swellable polymer selected from the group consisting of cross-linked polycarboxylate, cross-linked polysulfonate, cross-linked carboxymethyl cellulose, cellulose, sodium carboxymethylcellulose, and mixtures thereof;
• g) optionally, desiccants, solid processing aids, colorants, agglomeration aids, binders, glidants, corrosion inhibitors, and mixtures thereof;
• and
• h) wherein said first part does not contain sodium hypochlorite, lithium hypochlorite, potassium hypochlorite, sodium chlorite, chlorine dioxide, N-halogenated compounds, hydantoins, isocyanurates, carboxylic acids that also have hydroxyl, amino, amido, imino, or imido groups, enzymes;
• and
• wherein said second part consisting essentially of,
• a) a functional ingredient selected from the group consisting of a surfactant, a hydrotrope, a wetting agent, a dispersant, a penetrant, a chelating agent, an odor absorbent, a fragrance, a flavoring agent, a sweetener, a colorant, a corrosion inhibitor, a viscosity modifier, a foam booster, a defoamer, a stain and soil repellant, a fluorescent whitening agent, an enzyme, a cloud point modifier, an anti-microbial agent, a sporulation agent, a catalyst or an activating agent, a therapeutic agent, and mixtures thereof;
• b) a builder or filler selected from the group consisting of a carbonate, bicarbonate, sesquicarbonate, chloride, sulfate, phosphates, silicate, borate, nitrate, aluminate, silica-aluminate, hydroxide, or oxide compound of alkali metals, alkaline earths, aluminum, zinc and tin including hydrates, mono, di and tribasic compounds, mixed salts, borates, clays, zeolites, and mixtures thereof;
• c) optionally, a water-soluble polymer selected from the group consisting of polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polyquaternary ammonium salts, copolymers and mixtures thereof;
• d) optionally, an acid selected from the group consisting of sulfonic acid, polysulfonic acid, carboxylic acid, dicarboxylic acid, polycarboxylic acid, acid sulfate, acid phosphate, phosphonic acid, and mixtures thereof;
• e) optionally, a water-swellable polymer selected from the group consisting from cross-linked polycarboxylate, cross-linked polysulfonate, cross-linked carboxymethyl cellulose, cellulose, sodium carboxymethylcellulose, and mixtures thereof;
• optionally, desiccants, solid processing aids, agglomeration aids, bidders, glidants, preservatives, corrosion inhibitors and mixtures thereof;
• and
• g) wherein said second part does not contain any oxidant, wherein said oxidant comprises hypochlorite, chlorite, chlorate, perchlorate, N-halo compound, chlorine dioxide, peracid, peroxide, peroxygen bleach and mixtures thereof.

A method for cleaning dentures, said method comprises:

• contacting said dentures with a solid, multi-layered composition in water, wherein said composition comprises a first part and a second part:
• wherein said first part consisting of,
• 0.001%-50% by weight of a hypochlorite selected calcium hypochlorite, magnesium hypochlorite and mixtures thereof;
• b) a builder selected from the group consisting of carbonate, bicarbonate, sesquicarbonate and mixtures thereof;
• c) a water-soluble polymer selected from the group consisting of sulfonic acid, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polyquaternary ammonium salts, copolymers and mixtures thereof;
• d) at least 30% by weight of an acid selected from the group consisting of sulfonic acid, polysulfonic acid, carboxylic acid, dicarboxylic acid, polycarboxylic acid, acid sulfate, acid phosphate, phosphonic acid, and mixtures thereof;
• e) optionally, a filler selected from chloride, sulfite, phosphate, silicate, borate, nitrate, chlorate, aluminate, silica-aluminate, hydroxide, and oxide compounds of alkali metals, alkaline earths, aluminum, zinc and tin including hydrates, mono, di and tribasic compounds, mixed salts, borates, clays, zeolites and mixtures thereof;
• f) optionally, a water-swellable polymer selected from the group consisting of cross-linked polycarboxylate, cross-linked polysulfonate, cross-linked carboxymethyl cellulose, cellulose, sodium carboxymethylcellulose, and mixture thereof;
• g) optionally, desiccants, solid processing aids, colorants, agglomeration aids, binders, glidants, corrosion inhibitors, and mixtures thereof;
• and
• h) wherein said first part does not contain sodium hypochlorite, lithium hypochlorite, potassium hypochlorite, sodium chlorite, chlorine dioxide, N-halogenated compounds, hydantoins, isocyanurates, carboxylic acids that also have hydroxyl, amino, amido, imino, or imido groups, enzymes;
• and
• wherein said second part consisting of,
• a) a functional ingredient selected from the group consisting of a surfactant, a hydrotrope, a wetting agent, a dispersant, a penetrant, a chelating agent, an odor absorbent, a fragrance, a flavoring agent, a sweetener, a colorant, a corrosion inhibitor, a viscosity modifier, a foam booster, a defoamer, a stain and soil repellant, a fluorescent whitening agent, an enzyme, a cloud point modifier, an anti-microbial agent, a sporulation agent, a catalyst or an activating agent, a therapeutic agent, and mixtures thereof;
• b) a builder or filler selected from the group consisting of carbonate, bicarbonate, sesquicarbonate, chloride, sulfate, phosphate, silicate, borate, nitrate, aluminate, silica-aluminate, hydroxide, or oxide compound of alkali metals, alkaline earths, aluminum, zinc and tin including hydrates, mono, di and tribasic compounds, mixed salts, borates, clays, zeolites, and mixtures thereof;
• c) optionally, a water-soluble polymer selected from the group consisting of a polycarboxylate, sulfonated carboxylate, polysulfonate, polyvinylpyrrolidone, polyquaternary ammonium salts, copolymers and mixtures thereof;
• d) optionally, an acid selected from the group consisting of sulfonic acid, polysulfonic acid, carboxylic acid, dicarboxylic acid, polycarboxylic acid, acid sulfate, acid phosphate, phosphonic acid, and mixtures thereof;
• e) optionally, a water-swellable polymer selected from the group of cross-linked polycarboxylate, cross-linked polysulfonate, cross-linked carboxymethyl celluose, cellulose, sodium carboxymethylcellulose, and mixtures thereof;
• and
• f) optionally, desiccants, solid processing aids, agglomeration aids, binders, glidants, preservatives, corrosion inhibitors and mixtures thereof;
• and
• g) wherein said second part does not contain any oxidant, wherein said oxidant comprises hypochlorite, chlorite, chlorate, perchlorate, N-halo compound, chlorine dioxide, peracid, peroxide, peroxygen beach and mixtures thereof.