Gum-massaging oral brush
AssigneeGillette Canada Inc.
InventorsMichael F. Roberts, T. Craig Masterman, Edward Hosung Park, Philip J. Sweeney, Mingchih M. Tseng, Stephen C. Witkus
Life of this patent
Estimating the term…
Abstract
An oral brush is provided that includes an elongated body, a head portion extending from the body, and a plurality of bristles, formed of particular thermoplastic elastomers, extending from the body. In various embodiments, the thermoplastic elastomer has a Shore A hardness of at least 30; the thermoplastic elastomer is selected from the group consisting of polyetheramides, polyesters, styrene-ethylene-butylene-styrene block copolymers, polyurethanes, polyolefin elastomers, and mixtures thereof; and the thermoplastic elastomer has a flexural modulus of at least 5 MPa.
Claims9
An oral brush suitable for massaging the gums, comprising:
- an elongated handle;
- a head portion, sized for insertion into a human mouth, extending from an end of said handle;
- and
- a brush portion comprising (a) a plurality of first bristles extending from said head portion, said first bristles comprising a thermoplastic elastomer having a Shore A hardness of 35 to 55, said thermoplastic elastomer comprising a styrene-ethylene-butylene-styrene block copolymer, and (b) a plurality of second bristles extending from said head portion comprising a non-elastomeric material.
An oral brush suitable for massaging the gums, comprising:
- an elongated handle;
- a head portion, sized for insertion into a human mouth, extending from an end of said handle;
- and
- a brush portion comprising (a) a plurality of first bristles extending from said head portion, said first bristles comprising a thermoplastic elastomer having a Shore A hardness of 30 or greater and a flexural modulus of at least 5 MPa, said thermoplastic elastomer comprising a styrene-ethylene-butylene-styrene block copolymer, and (b) a plurality of second bristles extending from said head portion comprising a non-elastomeric material.
An oral brush suitable for massaging the gums, comprising:
- an elongated handle;
- a head portion, sized for insertion into a human mouth, extending from an end of said handle;
- and
- a brush portion comprising (a) a plurality of first bristles extending from said head portion, said first bristles comprising a thermoplastic elastomer having a Shore A hardness of 35-55 and a flexural modulus of at least 5 MPa, said thermoplastic elastomer comprising a styrenic block copolymer, and (b) a plurality of second bristles extending from said head portion comprising a non-elastomeric material.
Dependencies are inferred from the claim text.