• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An implement for oral treatment (10) is presented, comprising a head (14) and a handle (12), the head of which (14) is capable of being repeatedly fixed and removed from the handle (12). The head (14) is made of a non-magnetic and / or non-ferromagnetic material, while the handle (12) is at least partially made of a magnetic and / or ferromagnetic material.
    公开号:BR112020012199A2
    申请号:R112020012199-1
    申请日:2018-12-13
    公开日:2020-11-24
    发明作者:Uwe Jungnickel；Gerald Gorich；Markus Margott
    申请人:The Gillette Company Llc；
    IPC主号:
    专利说明:

    [0001] [0001] The present disclosure relates to an implement for oral treatment comprising a head and a handle, the head being able to be repeatedly attached to, and removed from, the handle, the head and handle being made of different materials. The present disclosure additionally relates to a method for manufacturing this implement for oral treatment, and to a kit comprising this implement for oral treatment and a support to contain the implement. BACKGROUND OF THE INVENTION
    [0002] [0002] Heads and handles for implements for oral treatment, such as manual or electric toothbrushes, are well known in the art. In general, tufts of bristles for cleaning teeth are attached to a bristle holder or to a mounting surface of a brush head intended for insertion into a user's oral cavity. Usually, a handle is attached to the head, and this handle is held by the user during brushing. Normally, manual toothbrush heads are permanently connected to said handle, for example by injection molding the bristle holder, the handle, and a neck connecting the head and handle, in an injection molding step. After the usual life of a toothbrush, that is, after about three months of use, the toothbrush is discarded. In order to provide environmentally friendly / sustainable manual toothbrushes that generate less waste when the brushes are discarded, manual toothbrushes are known that comprise interchangeable heads or head refills, that is, capable of being repeatedly attached to, and removed from the handle. Instead of buying a completely new toothbrush, consumers can reuse the handle and buy just a new head refill. Such refills are generally less expensive and generate less waste than a conventional manual toothbrush.
    [0003] [0003] For example, manual toothbrushes comprising a handle are connected to which a replaceable head is connected. The handle is provided with a cavity inside which the head is insertable. To provide a sufficiently strong connection between the head and the handle, the brush head is formed with a neck that has a coupling anchor to engage with a complementary engagement mechanism within a handle collar.
    [0004] [0004] In order to clean teeth effectively, it is necessary to provide adequate maneuverability and good handling properties of the toothbrush as a whole, these properties depending, among other things, on the flexion stiffness of the handle and head of the brush. Usually, toothbrush handles are shaped like a linear shaft for handling and manipulation by a user, as needed. Since manual toothbrushes with replaceable brush heads comprise an internal cavity within the handle portion for receiving the replaceable head, these handles have been observed to be relatively light and therefore neither comfortable to handle nor easy to handle. to maneuver into the oral cavity.
    [0005] [0005] In addition, after using the brush / after brushing the teeth, the user usually stores the wet brush in a toothbrush cup for drying. However, in a classic toothbrush cup, the drained fluids collect and accumulate at the bottom of the cup, and the fluids stay in contact with the toothbrush for a longer period of time. As the cup is opened on one side only, the toothbrush dries relatively slowly. Bacteria living in humid conditions / in a wet environment can proliferate quickly, contaminate the toothbrush and ultimately make the brush unhygienic. Consequently, there is a need for a solution to hygienically store and dry a manual toothbrush, thus allowing the remaining water, fluidized toothpaste and saliva to drain from the brush. The brush will dry quickly, thus inhibiting the multiplication of bacteria.
    [0006] [0006] It is an objective of the present disclosure to provide an implement for oral treatment that overcomes at least one among the disadvantages mentioned above, which in particular provides more comfort and improved maneuverability of the implement for oral treatment in the oral cavity during brushing, and that allows hygienic storage and drying. It is also an objective of the present disclosure to provide a method for manufacturing this implement for oral treatment, and a kit comprising said implement for oral treatment and a support to contain the implement in a hygienic manner. SUMMARY OF THE INVENTION
    [0007] [0007] According to one aspect, an implement for oral treatment is provided comprising a head and a handle, the head being able to be repeatedly attached to, and removed from, the handle, the head being made of a non-magnetic material and / or not ferromagnetic, and the handle being at least partially made of a magnetic and / or ferromagnetic material.
    [0008] [0008] According to one aspect, a kit is provided, the kit comprising this implement for oral treatment and a magnetic support to fix and contain the implement for oral treatment.
    [0009] [0009] According to one aspect, a method is provided for the manufacture of this implement for oral treatment, the method comprising the following steps: - providing an amorphous thermoplastic resin, - providing aluminum oxide, boron nitride or silicate of aluminum, - supplying iron oxide, - mixing amorphous thermoplastic resin, aluminum oxide, boron nitride or aluminum silicate and iron oxide to form a magnetic and / or ferromagnetic molding material, - heat the mixture molding material to form a flowable molding material, - shaping the flowable mixture to form a handle or part of a handle,
    [0010] [0010] The invention is described in more detail, below, with reference to the various modalities and figures, being that:
    [0011] [0011] Figure 1 shows a perspective view of an exemplary modality of an implement for oral treatment in accordance with the present disclosure, said head of the implement for oral treatment being separated from the handle;
    [0012] [0012] Figure 2 shows a perspective view of an exemplary modality of a kit comprising the implement for oral treatment according to the present disclosure, and a magnetic support to which the implement for oral treatment is magnetically fixed; and
    [0013] [0013] Figure 3 shows a diagram of a flowchart to shape the handle of the implement for oral treatment according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
    [0014] [0014] The implement for oral treatment according to the present disclosure comprises a handle and a head to which at least one tooth cleaning element, for example a tuft of bristles and / or an elastomeric element, can be attached. The head can be repeatedly attached to and removed from the handle. Although the head is made of a non-magnetic or non-ferromagnetic material, the handle is made of a magnetic and / or ferromagnetic material. For example, the head can be injection molded from a thermoplastic polymer, for example polypropylene. The implement for oral treatment can be a manual toothbrush. The implement for oral treatment can also be an interproximal brush, a plate scraper or a tissue / tongue cleaner. The head of the implement for oral treatment can be fixed to the handle by means of a snap-locking mechanism. For example, the handle may comprise a connector that can be insertable into a hollow portion on the head, or the head may comprise a connector insertable into a hollow portion in the handle. Alternatively, a connector can be provided as an additional part, that is, separate from the implement for oral treatment. Such a connector can be inserted into a hollow portion in the handle and a hollow portion in the head, respectively, thus providing stability and a sufficiently strong connection between the head and the handle, in order to allow a user to perform a brushing action.
    [0015] [0015] Generally, users are accustomed that the products, particularly in the personal health care sector, have a certain weight that guarantees the high quality of the product and provides a comfortable feeling when using the product. The magnetic / ferromagnetic material of the handle has a relatively high density and, therefore, a relatively heavy weight, which provides these benefits to the dental treatment implement. In addition, the magnetic / ferromagnetic material of the handle may have a higher density than that of the non-magnetic / non-ferromagnetic material of the head. Consequently, the center of mass is within the grip, which allows users to perform a well-coordinated brushing technique with better sensory perception during brushing.
    [0016] [0016] Although the high quality and relatively expensive handle of the mouth care implement is adapted for use for a longer period of time, compared to ordinary manual toothbrushes, which are discarded after about three months of use, the relatively inexpensive brush refill can be changed regularly, for example after about three months. This provides an inexpensive and environmentally sustainable mouth care implement that provides both a high quality grip with improved handling properties and a solution to buy just a new brush head refill, without the need to purchase a corresponding brush head as well. grip.
    [0017] [0017] In addition, the magnetic / ferromagnetic material of the handle allows for hygienic storage of the implement for oral treatment. For example, the implement for oral treatment can be magnetically attached to a magnetic support. The remaining water, fluidized toothpaste and saliva can drain from the brush. The mouthpiece can dry relatively quickly. Consequently, the proliferation of bacteria can be significantly reduced, thus making the implement for oral treatment more hygienic. In contrast to an ordinary toothbrush, which is stored in a toothbrush cup, where drained fluids collect and accumulate at the bottom of the cup, the brush according to the present disclosure is exposed to wet conditions over a significantly shorter period of time.
    [0018] [0018] A kit according to the present disclosure comprises an implement for oral treatment according to the present disclosure and a magnetic support to fix and contain said implement for oral treatment. The magnetic support can take the form of a flat disk that can be fixed to a wall. This flat disc can represent an easy to clean surface. In addition, a user only needs to place the dental treatment implement in close proximity to the magnetic support, and then the dental treatment implement will be fixed automatically. No precise positioning or threading is required, as with standard toothbrush holders. As the magnetic properties are provided only on the handle, and not on the head, the head portion cannot be accidentally attached to the magnetic support, thus reducing the risk of soiling the magnetic support.
    [0019] [0019] The magnetic and / or ferromagnetic material that forms at least part of the handle can comprise an amorphous thermoplastic resin. The magnetic and / or ferromagnetic material may additionally comprise aluminum oxide, boron nitride or aluminum silicate. In addition, the magnetic and / or ferromagnetic material may additionally or alternatively comprise iron oxide. The magnetic and / or ferromagnetic material may additionally comprise glass fibers which can be premixed with at least a portion of the amorphous thermoplastic resin.
    [0020] [0020] The magnetic / ferromagnetic material allows control of the handle weight in any location, for example by varying the load. Control of the toothbrush as a whole is necessary due to the relatively high weight of the handle. It is now possible to use the mass / weight distribution of the material to adapt the moment of inertia of the finished toothbrush.
    [0021] [0021] The magnetic and / or ferromagnetic material may comprise 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 aluminum oxide, boron nitride or aluminum silicate; and from about 45 weight percent to about 67 weight percent iron oxide. This composition provides a material density that is about three times the density of a standard plastic material used for toothbrushes, for example polypropylene. With the highest weight and the highest thermal conductivity, the material raises the perception of value, in particular in combination with a galvanic coating. This coating can be made of real metal. The galvanic coating can be applied in a selective electroplating process. During this coating process for a multi-component plastic part, a metallic layer is only deposited on a hard material while another soft molded component with overlap may remain unaffected.
    [0022] [0022] The magnetic and / or ferromagnetic material may comprise about 27.5 weight percent of an amorphous thermoplastic resin, about 17 weight percent,
    [0023] [0023] The amorphous thermoplastic resin may comprise a styrene resin, for example acrylonitrile styrene (SAN - "styrene acrylonitrile"). The amorphous thermoplastic resin can be selected from the list consisting of acrylonitrile butadiene styrene, polystyrene and styrene acrylonitrile.
    [0024] [0024] The amorphous thermoplastic resin can comprise about 17 weight percent acrylonitrile styrene and 10.5 weight percent of a mixture comprising polybutylene terephthalate and polyethylene terephthalate.
    [0025] [0025] It was surprisingly found that said composition provides a high gravity molding material, suitable for injection molding or extrusion molding. A molding material with high specific gravity and high surface hardness is provided, excellent in terms of coating characteristics as well as excellent in terms of thermal conductivity.
    [0026] [0026] The use of molding materials having a relatively high specific gravity is known. These molding materials generally contain a polymeric resin and a high density filler, such as iron oxide. In these impression materials, however, the amount of iron oxide that can be included is limited, since the thermal conductivity properties of the impression material are relatively unsatisfactory. Thus, on the one hand, the lower thermal conductivity leads to relatively longer cycle times during manufacture, in order to allow the molding material to cool after molding. On the other hand, if heavy polymeric materials are loaded with conductive additives of high heat, such as fibers or metal powder, the addition of these materials leads to tight process windows in the molding, because of the immediate freezing when the molten material comes into contact with the cold wall of the tool. This rapid freezing leads to a high injection speed and low flow length to wall thickness ratio in the produced part.
    [0027] [0027] It has now surprisingly been found that the impression material according to the present disclosure has a high specific gravity and thermally conductive properties optimally controlled to reduce or expand the time required for the impression material to cool during or after injection molding. It has surprisingly been found that a relatively high percentage of iron oxide can be maintained in the molding material, while improving the thermal conductivity properties of the molding material.
    [0028] [0028] The addition to aluminum oxide, boron nitride or aluminum silicate can provide the molding material with better thermal conductivity, compared to materials containing only styrene resin and iron oxide. This better thermal conductivity can lead to shorter cycle times, as the molding material can take less time to cool after molding.
    [0029] [0029] Another benefit of adding aluminum oxide, boron nitride or aluminum silicate to the material is the ability to increase the total amount of iron oxide in the molding material, compared to iron oxide and prior resins. Improvements in the properties of the impression material come from the addition of relatively small amounts of aluminum oxide, boron nitride or aluminum silicate. The material composition comprising a relatively high percentage of iron oxide (magnetite), that is, from about 45 weight percent, to about 67 weight percent, preferably about 51 weight percent, provides good magnetic properties and a relatively heavy weight of the total material.
    [0030] [0030] The styrene acrylonitrile "SAN" provides properties of high thermal resistance. The acrylonitrile units in the chain allow the SAN to have a glass transition temperature greater than 100 ° C. The properties of the SAN can allow for reduced cycle time due to the relatively earlier and faster glass transition temperature. Amorphous polymers are suitable for the heavy resin compounds of the present disclosure due to the glass transition temperature Tg under which an amorphous polymer is reversibly transformed from a viscous or rubbery to a hard condition. By injection molding the heavy resin material of the present disclosure, the temperature of the molten material is above the Tg region (viscous or rubbery condition). During cooling, the compound reaches the high temperature of Tg earlier and reaches dimensional stability (glassy condition). Overlapping molding of the heavy resin material is possible, as the material remains dimensionally stable due to the high Tg of the material.
    [0031] [0031] Polybutylene terephthalate and polyethylene terephthalate provide high quality surface properties for the grip, including improved optical characteristics and high impact resistance. Once heated, polybutylene terephthalate and polyethylene terephthalate represent a melt material resistant to high temperatures with low viscosity and a high fluidity index (MFI - "Melt Flow Index"). Therefore, the processability of the magnetic / ferromagnetic material is improved during molding.
    [0032] [0032] It is known that heavy resin materials tend to show high shrinkage effects for products having thick walls / dimensions. However, it has surprisingly been found that the glass fibers added to the magnetic / ferromagnetic material provide the material composition with better stability and low shrinkage effects.
    [0033] [0033] The method for manufacturing an implement for oral treatment according to the present disclosure comprises the following steps: - providing an amorphous thermoplastic resin,
    [0034] [0034] The amorphous thermoplastic resin can comprise acrylonitrile styrene, polybutylene terephthalate and polyethylene terephthalate, and polybutylene terephthalate and polyethylene terephthalate can be pre-mixed with glass fiber. The amorphous thermoplastic resin / styrene acrylonitrile can be supplied in a range of about 13 weight percent to about 30 weight percent; aluminum oxide, boron nitride or aluminum silicate can be supplied in a range of about 3 weight percent to about 25 weight percent; and iron oxide can be supplied in a range of about 45 weight percent to about 67 weight percent.
    [0035] [0035] The magnetic and / or ferromagnetic material may comprise about 17 weight percent acrylonitrile styrene; about 10.5 weight percent of a polybutylene terephthalate and polyethylene terephthalate composition; about 4.5 weight percent glass fibers; about 17 weight percent aluminum oxide; about 51 weight percent iron oxide.
    [0036] [0036] The material composition can be made by combining amorphous thermoplastic resin with aluminum oxide powder, boron nitride or aluminum silicate, with powdered iron oxide. Increasing the amount of iron oxide in the material composition additionally has the advantage of providing a lower cost molding material, since powdered iron oxide is less expensive than other fillers. Amorphous thermoplastic resin, glass fibers, aluminum oxide, boron nitride or powdered aluminum silicate and powdered iron oxide can be combined using a uniaxial extruder, a biaxial extruder, a kneader , a Banbury mixer, cylinder equipment or other similar extruders. After combining, the material is heated to become flowable. The flowable material can then be molded to form a handle or part of a handle, either via injection molding or via extrusion molding.
    [0037] [0037] In an additional step, the handle or the handle part can be galvanized to add an improved appearance and a pleasant touch. Thermoplastic elastomers are suitable for electroplating, as they allow the creation of both hard and soft composite components to be selectively galvanized in one operation.
    [0038] [0038] For example, the handle may comprise a thumb support made of a thermoplastic elastomeric material and / or a polypropylene material.
    [0039] [0039] Furthermore, the handle can be made of at least two, or at least three, different materials, each forming different parts of the handle. For example, a first material according to the present disclosure, that is, a magnetic and / or ferromagnetic material, can be injection molded into a first component of the handle, thus forming a basic underlying structure of the implement for oral treatment. A second component, for example of polypropylene material, can be injection molded on the first component, and / or a third component, for example of thermoplastic elastomeric material, can be injection molded at least partially on the first component and / or the second component.
    [0040] [0040] The third component of thermoplastic elastomeric material can form the thumb support on the front surface of the implement for oral treatment and / or a palm grip on the rear surface, opposite the front surface to be held by the user / consumer fingers and thumb . This grip configuration can be even more resistant to slipping during use. The thermoplastic elastomeric material can extend through an opening provided in the underlying base structure and / or the second component of the handle.
    [0041] [0041] The teeth cleaning elements of the implement for oral treatment, for example a bundle of filaments forming a tuft or a plurality of tufts, can be fixed to the head by means of a hot tuft formation process.
    [0042] [0042] Alternatively, the implement head for oral treatment can be provided with a bristle support having at least one hole for tuft, for example a hole with a blind bottom. A tuft comprising a plurality of filaments can be fixed / anchored to said tuft hole by means of a stapling process / method of tufting by anchoring. This means that the tuft filaments are flexed / bent around an anchor, for example, an anchor wire or an anchor plate, for example made of metal, in a substantially U-shape. The filaments together with the anchor they are pushed into the tufted hole so that the anchor penetrates opposite side walls of the tufted hole, thereby anchoring / securing / securing the filaments to the bristle support. The anchor can be attached to opposite side walls by positive engagement and friction. In the event that the tuft hole is a blunt-ended hole, the anchor holds the filaments against a bottom of the hole. In other words, the anchor can be located substantially perpendicular to the U-shaped curve. Once the tuft filaments are folded around the anchor in a substantially U-shaped configuration, a first branch and a second branch of each filament extend from the bristle holder towards a filament. The types of filament that can be used / are suitable for use in a stapling process are also called "double-sided filaments". Heads for dental treatment implements that are produced by a stapling process can be supplied in a relatively inexpensive and quick way.
    [0043] [0043] The following is a non-limiting discussion of example modalities of implements for oral treatment and parts thereof, according to the present disclosure, where reference to the Figures is made.
    [0044] [0044] Figure 1 shows an implement for oral treatment 10, in this specific embodiment a manual toothbrush 10. The manual toothbrush 10 comprises a handle 12 and a head 14, the head 14 being able to be repeatedly fixed to, and removed from, handle 12. Handle 12 can be formed using the process as shown in the flow chart of Figure 3 and as further explained below. The handle 12 is molded from a magnetic and / or ferromagnetic material. In addition, handle 12 may have been electroplated with any additional material, for example a polyethylene material or a thermoplastic elastomer, in order to create a soft region, for example a thumb support 16. The soft region / support for thumb 16 can improve the comfort and touch of the handle 12. Alternatively or additionally, by means of an additional electroplating step, the handle 12 can be provided with a layer of metal 18 directly on the magnetic and / or ferromagnetic material of the present disclosure in order to further improve the appearance of the handle 12. For example, the metal layer 18 may be in the form of a ring around the outer circumference 20 of the handle 12.
    [0045] [0045] The material of which the handle 12 is at least partially made has magnetic and / or ferromagnetic properties. Figure 2 shows a kit 22 comprising a manual toothbrush 10 with a handle 12 to which the head 14 is attached, and a magnetic support 24 on which the toothbrush 10 is magnetically attached.
    [0046] [0046] Figure 3 shows a diagram of a flowchart illustrating the steps for making a handle 12 or a portion of a handle of the mouthpiece 10 according to the present disclosure. An amorphous thermoplastic resin, optionally comprising glass fibers, is supplied in 100. Aluminum oxide, boron nitride or aluminum silicate is supplied in 110. Iron oxide is supplied in 120. In 130, amorphous thermoplastic resin (optionally comprising glass fibers), aluminum oxide, boron nitride or aluminum silicate and iron oxide are mixed in a molding material. The molding material is then heated to a flowable condition at 140. The heated and flowable molding material is shaped to form a handle 12 or part of a handle at 150. The molding step can be an extrusion molding step or injection molding. The optional electroplating step of the handle is shown in 160.
    [0047] [0047] The material according to the present disclosure is an alternative to the molten metal / zinc matrix material. The material of the disclosure allows to offer an attractive solution in relation to the manufacturing process according to the present disclosure, the price and the environment. This alternative allows the handle to look and feel, in the final state, like a metal product. At the same time, the material of the present disclosure would be easily processable via injection molding and save assembly effort. For example, for the process of the present disclosure three basic steps are required: (1) injection molding of the handle 12; (2) injection molding with two components of hard material and / or soft material, for example to form a thumb rest 16; and (3) electroplating the handle, for example to form a metal layer 18 in the form of a ring. In contrast, when using a die-cast zinc material, five steps are required: (1) manufacturing the main die-cast zinc part; (2) deburring the main part; (3) electroplating the main part; (4) separate production of a piece of soft material; (5) and assembly of the main part with the soft material part produced separately. A lubricant can be added to the material in order to improve the fluidity of the molding process.
    [0048] [0048] Table 1 shows the fluidity and heat transfer results of several different formulas / compositions of material:
    [0049] [0049] Graph 1 plots the average results of heat transfer and flow distance of the formulas in Table 1.
    [0050] [0050] As can be seen, different loads and different concentrations of loads control the thermal conductivity or heat transmission and fluidity of the material.
    [0051] [0051] The test results revealed that the use of boron nitride or aluminum silicate showed results very similar to those of aluminum oxide, shown in Table 1 and Graph 1, above.
    [0052] [0052] Thermal energy and shear heating affect the fluidity of the heavy resin material and, thus, the process window for an effective injection molding process can be precisely controlled. Additionally, with the ability of the material of the present disclosure to fill any cavities available within the mold, it is possible to use the mass / weight distribution of the material to adapt the moment of inertia of the finished handle.
    [0053] [0053] There are several advantages to the material of the present disclosure: The handle made from the material of the present disclosure has the appearance and feel of a heavy metal handle, and is resistant to corrosion. The material also has manufacturing advantages and cost saving advantages, with fast cycle times due to its heat transfer properties, compared to handles and products with metal inserts or die cast with assembled component parts. The material in the present disclosure requires less energy and other essential manufacturing resources compared to die-cast zinc products.
    [0054] [0054] In contrast to material compositions that are highly charged with charges, the magnetic / ferromagnetic material of the present disclosure has optimized mechanical properties, in particular dimensional stability under heat and impact resistance, due to the melt viscosity and temperature improved glass transition.
    [0055] [0055] The material of the present disclosure has the ability to adhere to other components / materials, for example substrates and resins, which is important for the injection molding of multi-components, for example for the molding of handles comprising two or three different materials.
    [0056] [0056] In the context of this disclosure, the term "substantially" refers to an arrangement of elements or resources that, although in theory it would be expected to exhibit exact match or behavior, may in practice cover something a little less than the exact. As such, the term denotes the degree to which a value, measurement or other related quantitative representation can vary from an established reference without resulting in a change in the basic function of the subject under discussion.
    [0057] [0057] The dimensions and values disclosed here should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension revealed as "40 mm" is intended to mean "about 40 mm".
    权利要求:
    Claims (15)
    [1]
    1. Implement for oral treatment (10), characterized by comprising a head (14) and a handle (12), the head (14) being able to be repeatedly attached to, and removed from, the handle (12), the head being (14) made of a non-magnetic and / or non-ferromagnetic material, and the handle (12) being at least partially made of a magnetic and / or ferromagnetic material.
    [2]
    2. Implement for oral treatment (10), according to claim 1, characterized in that the magnetic and / or ferromagnetic material comprises from about 13 weight percent to about 30 weight percent of a resin amorphous thermoplastic; from about 3 weight percent to about 25 weight percent aluminum oxide, boron nitride or aluminum silicate; and from about 45 weight percent to about 67 weight percent iron oxide.
    [3]
    3. Implement for oral treatment (10), according to claim 2, characterized in that the amorphous thermoplastic resin is selected from the group consisting of: acrylonitrile butadiene styrene, polystyrene and styrene acrylonitrile.
    [4]
    4. Implement for oral treatment (10), according to any of the preceding claims, characterized in that the magnetic and / or ferromagnetic material comprises about 27.5 weight percent of an amorphous thermoplastic resin, about 17 percent by weight of aluminum oxide, about 51 percent by weight of iron oxide and about 4.5% of glass fiber.
    [5]
    5. Implement for oral treatment (10), according to claim 4, characterized in that the amorphous thermoplastic resin comprises about 17 weight percent acrylonitrile styrene and 10.5 weight percent of a mixture comprising polybutylene terephthalate and polyethylene terephthalate.
    [6]
    6. Dental treatment implement (10) according to any of the preceding claims, characterized in that the handle (14) comprises a thumb support (16) which is made of thermoplastic elastomeric material and / or polypropylene material.
    [7]
    7. Implement for oral treatment (10), according to any of the previous claims, the implement for oral treatment (10) characterized by being a manual toothbrush (10).
    [8]
    8. Implement for oral treatment (10), according to any of the previous claims, characterized in that the handle (12) is formed by at least two, preferably three different parts (12, 16, 18), each part (12 , 16, 18) made of different materials.
    [9]
    9. Kit (22), characterized by comprising the implement for oral treatment (10), as defined in any of the previous claims, and a magnetic support (24) to fix and contain the implement for oral treatment (10).
    [10]
    10. Method for manufacturing an implement for oral treatment (10), according to any of claims 1 to 8, the method being characterized by comprising the following steps:
    - supply an amorphous thermoplastic resin, - supply aluminum oxide, boron nitride or aluminum silicate, - supply iron oxide, - mix the amorphous thermoplastic resin, aluminum oxide, boron nitride or aluminum silicate and iron oxide to form a magnetic and / or ferromagnetic impression material, - heat the impression material mixture to form a flowable impression material, - shape the flowable mixture to form a handle (12) or part of a handle (12 ), - supply a non-magnetic and / or non-ferromagnetic material, and - mold the non-magnetic and / or non-ferromagnetic material to form a head (14) or part of a head (14).
    [11]
    Method according to claim 10, characterized in that the amorphous thermoplastic resin comprises acrylonitrile styrene, polybutylene terephthalate and / or polyethylene terephthalate.
    [12]
    Method according to claim 10 or 11, characterized in that at least a portion of the amorphous thermoplastic resin is combined with fiberglass.
    [13]
    Method according to any of claims 10 to 12, characterized in that the amorphous thermoplastic resin is supplied in a range of about 13 weight percent, to about 30 weight percent, aluminum oxide, boron nitride or aluminum silicate is supplied in a range of about 3 percent by weight to about 25 percent by weight, and iron oxide is supplied in a range of about 45 percent by weight, to about 67 weight percent.
    [14]
    Method according to any of claims 10 to 13, the method being characterized by comprising the additional step of: galvanizing the handle (12) with a thermoplastic elastomer or polypropylene material.
    [15]
    Method according to any of claims 10 to 13, characterized in that the head (14) and / or the handle (12) is injection molded or via extrusion molding.
    类似技术:
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    BR112020012363A2|2020-11-24|dental treatment implement
    BR112020012356A2|2020-11-24|dental treatment implement
    BR112020014902A2|2020-12-08|MANUAL IMPLEMENT FOR ORAL TREATMENT
    BR112020014896A2|2020-12-08|CONNECTOR FOR A MANUAL IMPLEMENT FOR ORAL TREATMENT
    BR112020014840A2|2020-12-08|METHOD FOR MANUFACTURING AN IMPLEMENT FOR ORAL TREATMENT
    BR112020014062A2|2020-12-01|connector for a manual implement for oral treatment
    同族专利:
    公开号 | 公开日
    EP3501335A1|2019-06-26|
    CN111511249A|2020-08-07|
    US10842255B2|2020-11-24|
    US20190200748A1|2019-07-04|
    AU2018390460A1|2020-06-11|
    WO2019125897A1|2019-06-27|
    EP3501335B1|2020-06-17|
    CN111511249B|2022-02-11|
    US20210120948A1|2021-04-29|
    CA3083800A1|2019-06-27|
    AU2018390460B2|2021-11-18|
    KR20200085317A|2020-07-14|
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    法律状态:
    2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    EP17208954.2A|EP3501335B1|2017-12-20|2017-12-20|Oral care implement|
    EP17208954.2|2017-12-20|
    PCT/US2018/065395|WO2019125897A1|2017-12-20|2018-12-13|Oral care implement|
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