IP Library Granted Patent US 11,653,752
Granted Patent B2
US 11,653,752 · App. 17/077,639 · Granted May 23, 2023

Oral care implement

Inventors: Gerald Görich (Weiterstadt, DE); Markus Morgott (Eschborn, DE); Uwe Jungnickel (Königstein, DE)
Assignee: The Gillette Company, LLC.
A46D3/005A46B5/0095A46B5/02A46B9/04B29C45/14385A46B2200/1066B29L2031/425
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Quick Facts
Patent No.
US 11,653,752
App. No.
17/077,639
Granted
May 23, 2023
Kind
B2
Abstract

An oral care implement comprises a head and a handle, the head being repeatedly attachable to and detachable from the handle. The head is made from a non-magnetic and/or non-ferromagnetic material, while the handle is at least partially made from a magnetic and/or ferromagnetic material.

Claims (21)

1. An oral care implement ( 10 ) comprising a head ( 14 ) and a handle ( 12 ), the head ( 14 ) being repeatedly attachable to and detachable from the handle ( 12 ), the head ( 14 ) being made from a non-magnetic and/or non-ferromagnetic material, and the handle ( 12 ) being at least partially made from a magnetic and/or ferromagnetic material,

wherein the magnetic and/or ferromagnetic material comprises from about 13 weight percent to about 30 weight percent of an amorphous thermoplastic resin, from about 3 weight percent to about 25 weight percent of aluminum oxide, boron nitride or aluminum silicate; and from about 45 weight percent to about 67 weight percent of iron oxide,

wherein the amorphous thermoplastic resin comprises about 17% weight percent styrene acrylonitrile, and 10.5 weight percent of a mixture comprising polybutylene terephthalate and polyethylene terephthalate.

2. The oral care implement ( 10 ) of claim 1 , wherein the handle ( 14 ) comprises a thumb rest ( 16 ) being made from thermoplastic elastomer material and/or from polypropylene material.

3. The oral care implement ( 10 ) of claim 1 , wherein the oral care implement ( 10 ) is a manual toothbrush ( 10 ).

4. The oral care implement ( 10 ) of claim 1 , wherein the handle ( 12 ) is formed of at least two different parts ( 12 , 16 , 18 ) made of different materials.

5. A kit ( 22 ) comprising the oral care implement ( 10 ) of claim 1 and a magnetic holder ( 24 ) for attaching and holding the oral care implement ( 10 ).

6. A method for manufacturing an oral care implement ( 10 ) of claim 1 , the method comprising steps:

providing an amorphous thermoplastic resin;

providing aluminum oxide, boron nitride or aluminum silicate;

providing iron oxide;

mixing the amorphous thermoplastic resin, aluminum oxide, boron nitride or aluminum silicate and iron oxide into a magnetic and/or ferromagnetic molding material;

heating the molding material mixture into a flowable molding material;

molding the flowable molding mixture into a handle ( 12 ) or part of a handle ( 12 );

providing a non-magnetic and/or non-ferromagnetic material; and

molding the non-magnetic and/or non-ferromagnetic material into a head ( 14 ) or part of a head ( 14 ),

wherein the amorphous thermoplastic resin is provided in a range from about 13 weight percent to about 30 weight percent; the aluminum oxide, boron nitride or aluminum silicate is provided in a range from about 3 weight percent to about 25 weight percent; and the iron oxide is provided in a range from about 45 weight percent to about 67 weight percent.

7. The method of claim 6 , wherein the amorphous thermoplastic resin comprises at least one of styrene acrylonitrile, polybutylene terephthalate and polyethylene terephthalate.

8. The method of claim 6 , wherein at least a portion of the amorphous thermoplastic resin is blended with glass fiber.

9. The method of claim 6 , comprising a step of electroplating the handle ( 12 ) with a thermoplastic elastomer or a polypropylene material.

10. The method of claim 6 , wherein the head ( 14 ) and/or handle ( 12 ) is molded by injection molding or extrusion molding.

Priority Claims (1)
EP 17208954 · Dec 20, 2017 · regional
Continuity (2)
Continuation 16225509 · Dec 19, 2018
Related Publication 20210120948A1 · Apr 29, 2021
Cited By (1)
US 12,194,664