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US 5,633,083 AGranted
Toothbrush
AssigneesSunstar Kabushiki, Toray Monofilament Co., Ltd.
InventorsTatsuaki Iwai, Katsushi Ebisudani, Naomi Yokosuka
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Abstract
The present invention relates to a toothbrush (a) wherein a filament implant part is non easily contaminated with bacteria even when using for a long period of time. The toothbrush is characterized by implanting of a filament coveted by a coat of a complex of a polymer having cation exchange capacity and a cationic bactericide.
Claims3
A toothbrush comprising:
- a plurality of filaments;
- a bactericidal coating on said filaments for inhibiting bacterial growth, wherein said bactericidal coating includes a complex of bactericide with a polymer capable of cation exchange and a cross-linking agent,
- wherein said bactericide is selected from the group consisting of chlorhexidine, cetylpyridinium, benzalkonium and benzethonium,
- wherein said polymer is selected from the group consisting of vinyl chloride, vinylidene chloride, vinyl acetate, acrylic ester, acrylonitrile, styrene, ethylene, propylene, acrylamide, methacrylic ester, methacrylamide and a copolymer thereof,
- wherein said polymer has an anionic substituent selected from sulfonic group;
- wherein said bactericidal coating is from 0.1 to 10 .mu.m thick;
- and
- wherein said plurality of filaments are made of a material selected from the group consisting of nylon, polyester, propylene and polyvinylidene chloride.
5 more elements
Dependencies are inferred from the claim text.