183 results about "Stannous ion" patented technology

During the preparation of ordered nano structure metal material, correponding colloid crystal template is first prepared via capillary abstraction self-assembling method. Spacer is set between two parallel plates to form micro passage in the same thickness as the spacer, one end of the micro passage is soaked into microsphere emulsion so that the emulsion is driven by capillary effect to the micro passage to form ordered arrangement. The bottom of the micro passage is then soaked into sensitizing stannous ion solution, so that the surface of the microsphere has one layer of sensitizing stannous ion adsorbed and is sensitized. The present invention features the surface seed growing method and colloidal crystal of polystyrene microsphere as template. When the template is set inside chemical plating solution, some interval is formed between microspheres owing to electrostatic repulsion, and the interval permits forming metal shell in the outer surface of the medium microsphere.

Oral care composition for preventing and/or reducing calories, including: at least about 0.005%, of metal ions wherein the composition comprises at least about 0.005% of zinc ions and optionally comprises from about 0.001% to about 3%, of stannous ions; at least about 100 ppm of fluoride ions; from about 0.03% to about 10% of a mineral surface active agent selected from homopolymers of itaconic acid, homopolymers of acrylic acid, copolymers of maleic acid and acrylic acid, copolymers of maleic anhydride or acid with methyl vinyl ether, and mixtures thereof; at least 5% of water; less than 10% fused silica, calcium based abrasives, and mixtures thereof; less than 5% of polyphosphates having n+3 or higher; and wherein the weight ratio of metal ion to the mineral surface active agent is equal to or less than about 0.5.

The present invention relates to oral care compositions comprising stannous ions, a mint-type flavor oil, a protectant component that prevents generation of off odor and off taste in the composition, and orally acceptable carriers. The mint-type oils include peppermint, spearmint and corn mint. Suitable protectant components include copper salts and carbonyl compounds such as ascorbic acid; cis-jasmone; 2,5-dimethyl-4-hydroxy-3(2H)-furanone; 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone; vanillin; ethyl vanillin; anisaldehyde; 3,4-methylenedioxybenzaldehyde; 3,4-dimethoxybenzaldehyde; 4-hydroxybenzaldehyde; 2-methyoxybenzaldehyde; 4-methoxybenzaldehyde; benzaldehyde; cinnamaldehyde (3-phenyl-2-propenal); hexyl cinnamaldehyde; α-methyl cinnamaldehyde; ortho-methoxy cinnamaldehyde; α-amyl cinnamaldehyde; and combinations thereof. The oral care composition may be a dentifrice.

Process for heat treating precipitated silica to improve stability. Oral care compositions comprising such heat treated precipitated silica abrasives and a stannous ion source.

The present invention relates to flavor oils including mint-, fruit- and spice-type flavors that are specially processed to substantially eliminate low-molecular weight sulfur compounds, in particular dimethyl sulfoxide (DMSO), which has been found to be the main precursor of malodorous species such as dimethyl sulfide and methyl mercaptan. These malodorous species are produced via oxidation-reduction reactions involving such sulfur-containing compounds present in flavor oils. A preferred processing method is an aqueous-washing process, which has advantages of being simple, inexpensive and easy to implement while importantly avoiding the problems of typical processes including non-selective removal of desirable components and subjecting the flavor oils to extreme conditions that may destroy other components and result in undesirable changes in flavor or odor character. Other processing methods to selectively remove non-desired components include (1) distillation to remove polar low boiling point components, (2) filtration through adsorbents selective for sulfur compounds, (3) countercurrent extraction and (4) column chromatography. The processing methods may optionally be followed by reengineering to add back desired components that may have been removed or altered during the processing. The specially processed flavor oils are particularly useful in oral care compositions comprising components with chemical reducing capability such as stannous ions, which react with the sulfur-containing compounds to produce malodorous products.

Oral care compositions comprising an amino acid and stannous ion source, especially in the absence of zinc ion source, are provided for promoting Gum Health of a user.

The present invention relates to a single phase oral care composition comprising:

• • a. a stannous salt
  • b. a potassium salt
  • c. a chelant
  • d. monofluorophosphate (MFP).

The composition of the invention has been found to allow prolonged contact between stannous ion and nitrate ion in a single dentifrice without toxic effects or insoluble products. The invention further provides for the maintenance of an efficacious fluoride ion level.

Disclosed are methods for reducing the staining of dentifrice composition containing stannous comprising administering to a subject the dentifrice composition. The dentifrice composition is a dual phase dentifrice and is contained in physically separated compartments of a dentifrice dispenser. The first dentifrice composition comprises an effective amount of one or more linear polyphosphates having an average chain length of about 4 or more and has a total water content of up to about 20%. The second dentifrice composition comprises an effective amount of stannous ions. The molar ratio of polyphosphate anion to stannous ion is from about 0.2:1 to about 5:1 and the efficacy of the stannous ion in the dentifrice is not reduced by the polyphosphate. The dentifrice composition may alternatively be a single phase dentifrice. The single phase dentifrice will comprise an effective amount of one or more linear polyphosphates having an average chain length of about 4 or more and an effective amount of a stannous anion. The single phase dentifrice has a total water content of up to about 20%, the stannous ion is not delivered from stannous fluoride, a molar ratio of polyphosphate anion to stannous ion is from about 0.2:1 to about 5:1, and the efficacy of the stannous ion in the dentifrice is not reduced by the polyphosphate.

Oral care compositions comprising a neutral amino acid and stannous ion source are provided for promoting Gum Health of a user.

This invention relates to oral care compositions comprising a first source of zinc which is zinc citrate, a second source of zinc which is zinc oxide or zinc lactate, a stannous ion source, and a polyphosphate, as well as to methods of using and of making these compositions.

The invention relates to the field of oral nursing, in particular to an oral nursing composition containing polyphenol compounds, a stannous ion source and a soluble non-antioxidant alkaline earth metal ion source and a method for reducing oxidation of the polyphenol compounds in the oral nursing composition containing the stannous ion source and the polyphenol compounds.

The present invention relates to a single phase oral care composition comprising:

• • a. a stannous salt delivering a stannous ion;
  • b. a potassium salt delivering a potassium ion wherein the potassium salt is selected from potassium nitrate, potassium gluconate, potassium citrate, potassium chloride, potassium tartrate, potassium bicarbonate, and mixtures thereof;
  • c. a chelant;
  • d. a fluoride ion source; and
  • e. less than 0.01% of an alkyl sulphate or an alkyl ethoxylate sulphate;

wherein the oral care composition provides a soluble fluoride ion level of greater than 50% of the total fluoride ion.

The composition of the invention has been found to allow prolonged contact between stannous ion and nitrate ion in a single dentifrice without toxic effects or insoluble products. The invention further provides for the maintenance of an efficacious fluoride ion level.

The present disclosure provides low water dentifrice compositions comprising an effective amount of a zinc ion source, a stannous ion source, a polyphosphate and an acid in a calcium pyrophosphate base. The acid lowers the pH of the composition to enable stabilization of the metal ions and extend shelf-life of the composition.