Gillette Canada Inc

Christopher H Suhonen

Pedro L Jusino

A flavored interproximal dental cleaning article having an open, porous brush portion with matrix particles comprising flavor particles encapsulated in a water-soluble matrix bound to the surfaces of the brush portion by a water-insoluble, matrix particle encapsulating hard, flexible polymeric film which is preferably a urethane polymer. The brush portion can be integrally connected to a threader portion and/or a floss portion, and the threader portion and the brush portion can be further stiffened by a second outer polymeric hard flexible film coating which can be free of flavor particles. The matrix particles can be flavor oils encapsulated in a matrix comprising malto-dextrin or non-toxic gums. The cleaning article is made by impregnating a open, porous brush portion of an interproximal dental cleaning article with a coating solution comprising a coating material dissolved in a volatile solvent. The coating solution has dispersed therein matrix particles comprising flavor particles encapsulated in a water-soluble matrix, the matrix particles being substantially insoluble in the volatile solvent. The coating, preferably of a urethane polymer, is cured to substantial hardness to form an open, porous brush portion, matrix particles comprising flavor particles encapsulated in a water-soluble matrix being bound to the surfaces of the brush portion by a first water-insoluble, matrix particle encapsulating hard, flexible polymeric film.

Flavored dental cleaning article and method

A method for dyeing nylon filaments for use in wear-indicating toothbrushes includes immersing a batch of a first nylon filament for between 10 minutes and 80 minutes in an aqueous solution containing between 0.01% and 0.19% weight to volume of Indigotine dye, said solution having a pH between 1 and 7 and having a temperature between 50.degree. C. and 90.degree. C., the dye penetrating into the filament to color an outer cross-sectional region and not penetrating into an inner cross-sectional region of the filament; removing the batch of the first nylon filament from the solution, and repeating the steps for a batch of a second nylon filament, reusing the same solution.

Method for ring-dyeing nylon filaments with indigotine dye for

Stannous fluoride containing toothpaste compositions including an alkyl vinyl ether and maleic anhydride or acid copolymer as a stabilizing agent for stannous fluoride and methods for preparing such stabilized compositions.

Stabilized stannous fluoride toothpaste

Stannous fluoride containing aqueous, non-abrasive home treatment gel compositions including an alkyl vinyl ether and maleic anhydride or acid copolymer as a stabilizing agent for stannous fluoride and methods for preparing such stabilized compositions.

Aqueous stannous fluoride non-abrasive home treatment gel compositions

Aqueous stannous fluoride containing moutwash compositions including an alkyl vinyl ether and maleic anhydride or acid copolymer as a stabilizing agent for stannous flouride and methods for preparing such stabilized compositions.

Stabilized aqueous stannous fluoride mouthwash

Aqueous stannous fluoride containing mouthwash compositions including an alkyl vinyl ether and maleic anhydride or acid copolymer as a stabilizing agent for stannous fluoride and methods for preparing such stabilized compositions.

Growing community of inventors

San Jose, CA, United States of America

Christopher H Suhonen