• 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:
    The present invention relates to a method for producing a wiper rubber, in particular for a windshield wiper, in which a wiper rubber base body (10) is formed from a natural and / or synthetic rubber in a process step a), of which (10) in a process step b ) at least a part is coated with a natural and / or synthetic rubber dispersion (40). The invention also relates to a dispersion-coated wiper rubber (10, 40) and a windshield wiper equipped therewith (10, 40).
    公开号:BE1022654B1
    申请号:E2014/0110
    申请日:2014-02-20
    公开日:2016-06-27
    发明作者:Nicolaas Gotzen；Reiner Lay
    申请人:Robert Bosch Gmbh；
    IPC主号:
    专利说明:

    Dispersion-coated Wischaummi
    The present invention relates to a method for producing a squeegee and a squeegee and a wiper.
    State of the art disclosure of the invention
    Wiper rubbers of windscreen wipers are used to ensure a good visibility in the wet by a disc.
    The publication DE 10 2009 000 072 A1 describes a wiper blade rubber, which is at least partially provided with a powder coating of a strongly precrosslinked natural and / or synthetic rubber powder, and a method for its production.
    The document DE 10 2007 034 328 A1 describes a strand extrudate and a process for its production. In this case, the extruded extrudate is formed from an elastomeric material on which a coating of a polymer material is applied.
    Disclosure of the invention
    The present invention is a process for producing a wiper blade, in particular for a wiper blade or a windshield wiper, for example a motor vehicle.
    The method comprises the method steps: a) forming a wiper gum base of a natural and / or synthetic rubber and b) coating at least a portion of the wiper gum base with a natural and / or synthetic rubber dispersion.
    Dispersion coating has the advantage that it is a health and environmentally friendly coating process. In particular, dispersion coating can be carried out with a lower expenditure of protective measures and thus also at a lower cost than other coating methods, such as, for example, powder coating and melt coating. In addition, by dispersion coating not only a physical, but also a chemical compound and thus a more stable bonding of the coating to the wiper rubber base body can be achieved than with other coating methods, such as, for example, powder coating and melt coating. Further, dispersion coating is advantageously an in-line manufacturable coating process.
    The fact that not only the wiper base, but also the coating of a natural and / or synthetic rubber - and, for example, not from another, for example, chemically incompatible and / or inelastic, polymer material - is formed, the attachment stability of the coating on the wiper rubber base body advantageously also improved and cracking in the coating can be avoided.
    The subdivision of the wiper blade rubber in the wiper base body and coating or the multi-step, in particular two-step, production thereof also has the advantage that the wiper rubber base body can be formed from a material having different properties than the coating. Thus, for example, the wiper rubber base, which requires a significantly higher material usage compared to the coating, can be made of a low cost material, such as ethylene-propylene-diene rubber (EPDM). On the other hand, cost-intensive or expensive materials, for example polymers and fillers, such as nanoparticle fillers, in particular in (very) small amounts, can be used for the coating. Due to the comparatively low
    Material used for the coating, so even possibly even when using more expensive materials in the coating, the total cost of materials even be reduced. In addition, a subdivision of the squeegee in wiper rubber base and coating allows to optimize the materials of the sections to their respective function. For example, the squeegee gum base may be formed of a material having good dimensional stability, such as the low cost ethylene propylene diene rubber (EPDM), whereas the material of the coating may have a low abrasion resistance, particularly surface hardness Friction coefficient, and / or minimization of wiper noise (English: "running noise"), for example, by friction-induced vibrations caused wiping noise, can be designed optimized. For example, the material of the coating can be provided with a higher crosslinking density and, concomitantly, with a lower flexibility or higher hardness, for example a Shore hardness of about 90, than the material of the wiper rubber base body, for example designed with a Shore hardness of about 65 can be, in particular without negatively influencing the overall flexibility of the wiper blade rubber. Alternatively or additionally, the material of the coating may have fillers which are designed to be optimized with regard to friction reduction or wiping quality improvement and / or noise minimization, whereas in the material of the wiper rubber base body such specialized and mostly expensive fillers are dispensed with and possibly simpler, more readily available and / or. or less expensive fillers can be used. In addition, the rubber dispersion coating advantageously makes it possible to dispense with a graphite coating which conventionally tends to form water spots and / or streaks and generally only leads to a low-quality, immediate wiping quality.
    In one embodiment, the rubber dispersion is a primary dispersion.
    A primary dispersion can be understood in particular to mean a dispersion which is prepared by a polymer formation reaction, for example by emulsion polymerization or suspension polymerization, directly from monomers and in particular not by dispersing a (otherwise prepared) polymer, in particular rubber, (secondary dispersion).
    A primary dispersion may advantageously have a higher chemical reactivity than a secondary dispersion, which may have an advantageous effect on the stability of the connection of the coating to the wiper rubber base body. In addition, a more uniform and / or thinner coating can optionally be achieved by a primary dispersion. In addition, an exfoliating and / or agglomeration-inhibiting effect on fillers, which is explained in more detail below, can be achieved by a primary dispersion, which can have an advantageous effect on the properties of the coating and thus of the wiper blade rubber.
    In another embodiment, the rubber dispersion contains at least one filler.
    Within the scope of a specific embodiment of this embodiment, the at least one filler is added to a reaction mixture for forming the rubber primary dispersion before or during a polymer formation reaction. This has the advantage that a particularly fine distribution of the filler achieved in the dispersion and agglomeration of filler particles can be avoided. As a result, in turn, a particularly uniform coating can be achieved and / or an effect caused by the filler on the properties of the coating or of the wiper rubber, in particular the wiping properties, can be improved. This is advantageous in particular when using nanoparticle fillers, since both an agglomeration which is particularly undesirable in the case of nanoparticle fillers can be reduced or even avoided, and optionally also an (additional) exfoliating effect on nanoparticle filler particles, such as, for example, nanotubes and / or sheet silicates , can be effected.
    The reaction mixture for forming the rubber primary dispersion may in particular comprise a liquid, for example water, monomers and optionally oligomers, and also additives such as surfactants and / or protective glycols. The polymer formation reaction can be initiated in particular by addition of a, for example, water-soluble initiator to the reaction mixture and thus the beginning of the polymerization reaction selectively controlled - and set, for example, to a time after or during the addition of filler.
    Within the scope of a further embodiment, the at least one filler is selected from the group consisting of nanoparticle fillers, polyethylene particles, in particular particles of ultrahigh molecular weight polyethylene (UHMW-PE particles) and / or particles of high density polyethylene (HDPE particles), polytetrafluoroethylene Particles (PTFE particles) and mixtures thereof. By means of these comparatively expensive fillers, the properties of the coating or of the wiper rubber, in particular the wiping quality and / or the wiping behavior, can be improved, for example with regard to minimizing running noise. Their use in the coating dispersion makes it possible to use small amounts of material and thus to keep the overall material costs low.
    A nanoparticle filler may, in particular, be understood as meaning a filler which, at least when used as a filler within a polymer matrix, is present at least substantially in the form of nanoparticles. In particular, a nanoparticle filler may be understood to mean both a filler which comprises or at least substantially forms nanoparticles which have already been separated or exfoliated prior to introduction into the polymer matrix, and also an exfoliable filler, which first passes through in the rubber dispersion Exfoliation / Separation can be converted into nanoparticles.
    Nanoparticles can be understood to be particles which have a size in the nanometer range, in particular of less than or equal to 1000 nm, for example of less than or equal to 100 nm, optionally of less than or equal to 25 nm, at least in one spatial direction.
    Before being introduced into the polymer matrix, an, in particular exfoliierbarbarer, nanoparticle filler optionally also larger particles, for example having a layer structure, for example having an average particle size of less than or equal to 20 pm, in particular of less than or equal to 10 pm. For example, particles having a layer structure may have an average particle size of less than or equal to 10 μm before being introduced into the polymer matrix and layers within the layer structure
    Layer thicknesses in the nanometer range, for example, of about 1 nm, which are then separated when used as a filler within the polymer matrix from each other and form layered or platelet-shaped nanoparticles.
    However, it is also possible for a nanoparticle filler to comprise, or at least essentially to form, separated or exfoliated nanoparticles even before they are introduced into the polymer matrix. This can be achieved, for example, by an exfoliating pretreatment, for example by an organic modification.
    In a further embodiment, the at least one filler comprises (at least) one nanoparticle filler which is selected from the group of carbon nanoparticle fillers, in particular carbon nanotubes, nanoclays (nanoclays, nanocontainers) and mixtures thereof. For example, the at least one filler (at least) carbon nanotubes, in particular exfoliated carbon nanotubes, and / or at least one Nanotonerde, in particular exfoliierbare and / or exfoliated Nanotonerde (English: exfoliated nanoclay) include. By means of these particularly expensive fillers, the properties of the coating or of the wiper rubber, in particular the wiping quality and / or the wiping behavior, can be particularly greatly improved, for example with regard to noise minimization, the use thereof in the coating dispersion not only minimizing the material costs, but also - due to the above-mentioned agglomeration-inhibiting and / or exfoliating / separating effect - can bring about an improvement of the effect achievable by these fillers.
    A nanoclay (nanoclay) can be understood in particular as meaning a material which comprises, or is formed from, a (in particular mineral) sheet silicate, for example montmorillonite, bentonite, kaolinite, hectorite and / or halloysite, which comprises (exfoliated / separated) nanoparticles and / or form nanoparticles (can be exfoliated / separated into nanoparticles).
    For example, montmorillonite nanoclays may comprise aluminum silicate layers with layer thicknesses of about 1 nm, which are stacked into a multilayer system of about 10 microns and which separate upon introduction into a polymer matrix and layered or platelet nanoparticles having a high aspect ratio (nm x pm ) form.
    In contrast, halloysite nanoclays can be in the form of two-layer aluminum silicate nanotubes, for example with an average size of approximately 15 nm x approximately 1000 nm.
    In addition, nanomaterials may be used in an organically modified form, for example to provide (directly) exfoliated / separated nanoparticles and / or to effect or enhance exfoliation / separation within the polymer matrix.
    For example, Betonit can be in the form of a quaternary
    Alkylammoniumbetonitsalzes be used advantageously as organically modified Nanotonerde.
    In the context of another embodiment, the wiper gum base in method step a) is formed by extrusion, in particular in the form of a wiping rubber base strand. Extrusion is advantageously an in-line process
    The wiper rubber base body may in particular comprise a wiper lip, a tilting web and a fastening section. In this case, the wiper lip can be connected in particular via the tilting ridge with the attachment portion. In the ready-to-use squeegee, the wiper lip can in particular have two side surfaces and one end surface. In particular, wiping edges can be formed between the side surfaces and the end face.
    In principle, it is possible in method step a) to form a single profile or a single-profile strand, in which the wiper lip is formed directly in the ready-to-use form (two side surfaces, one end surface and two wiping edges).
    Preferably, however, the wiper gum base in method step a) is in the form of a double profile, in particular a double-profile strand. A double profile can be understood to mean a body which corresponds to the shape of two wiper rubbers connected to the later end faces of the wiper lips. By cutting, for example cutting, in particular in the longitudinal direction of the double profile, two individual profiles or single-profile strands can be formed from such a double profile, whose wiper-lip end faces are formed by the separating or cutting surfaces.
    Preferably, the rubber dispersion in method step b) is applied to at least one, in particular the (later) wiping edges forming, the area of the side surfaces of the wiper lip (the single profile or the double profile). These areas have a particularly high effect on the wiping quality or wiping properties of the wiper blade when using the wiper blade.
    In the case of a single profile, the end face between the two side surfaces of the wiper lip can also be coated with the rubber dispersion in method step b).
    Since the separation preferably takes place after method step b) and consequently no end surfaces are formed in a double profile during the coating of method step b), in the case of a double profile the end surfaces of the wiper lips can be uncoated in particular. However, the lateral surface areas of the wiper lip, which later (after separation) form the wiping edges and are substantially responsible for the wiping quality or wiping properties of the wiper blade rubber, can also be easily coated in the case of production via a double profile. By producing by means of a double profile, the producible amount of wiper rubber per unit of time can advantageously be increased significantly, for example approximately doubled.
    In a further embodiment, the coating is carried out in process step b) by spraying the rubber dispersion. In particular, process step b) can take place by means of spray coating. Thus, a uniform coating can advantageously be achieved in an in-line process.
    The wiper gum base is preferably unvulcanized during coating with the natural and / or synthetic rubber dispersion in process step b). The wiper rubber base body can in particular be co-vulcanized and / or crosslinked together with the coating in a method step d) explained in more detail below. This has not only the advantage that process steps can be summarized and thereby the production time can be shortened, but can also have an advantageous effect on the stability of the connection of the coating to the wiper rubber base body and the evenness of the coating, for example the prevention of cracking in the coating.
    In a further embodiment, the method further comprises the process step c): drying the coated wiper rubber base body. By drying, in particular the liquid, for example water, can be removed from the rubber dispersion coating. The drying in process step c) can be carried out in particular by an in-line production-capable drying process, for example by means of infrared radiation.
    In a further embodiment, the method further comprises the process step d): (co) vulcanizing the dried, coated wiper rubber base body. It has proven to be advantageous to remove or dry the coated wiper rubber base body prior to vulcanization in order to achieve the most uniform and flawless coating possible. The vulcanization in process step d) can advantageously also be carried out in an in-line process capable of being produced, for example in a salt bath.
    Furthermore, the method may include process step e): separating, in particular cutting, the wiper gum base into individual wiper gums. The separation in process step e) can likewise be carried out in an in-line process capable of being manufactured. After separation, the wiper blades are ready for use and can be packed, which can be done in a method step f). Insofar as the wiper rubber base is formed in process step a) in the form of a double profile or double-profile strand, the double profile or the double-profile strand can be separated into individual profiles in process step e). This can be done for example by separating, in particular cutting, along the double profile and optionally transverse to the double-profile strand.
    By in-line methods advantageously the total production costs can be reduced.
    Since both the method steps a) and b) and the method steps c), d) and / or e) and optionally f) can be carried out in in-line manufacturable methods, it is possible wiping rubbers through an in-line process chain, for example, which is completely in-line executable to manufacture cost-effectively.
    In another embodiment, the wiper rubber base in process step a) is formed from chloroprene rubber (CR) and / or ethylene-propylene-diene rubber (EPDM).
    In particular, the wiper rubber base may be formed from ethylene-propylene-diene rubber (EPDM). By using ethylene-propylene-diene rubber, a particularly clear view can advantageously be achieved when wiping. In addition, ethylene-propylene-diene rubber is advantageously inexpensive and has a good dimensional stability.
    In a further embodiment, process step b) uses a natural rubber (NR), chloroprene rubber (CR) and / or ethylene-propylene-diene rubber (EPDM) dispersion.
    In the context of a specific embodiment, the rubber dispersion (or the coating) and the wiper rubber base body are formed of a natural and / or synthetic rubber of the same type, for example EPDM on EPDM, NR on NR. Thus, advantageously, a particularly stable connection of the coating to the wiper rubber base body can be achieved.
    In a further embodiment, the rubber dispersion has a higher crosslinker content than the rubber of the wiper rubber base. Thus, advantageously, a higher degree of crosslinking and thus a higher hardness of the coating can be achieved, which can have an advantageous effect on the abrasion resistance and / or the coefficient of friction of the coating and thus on the wiping properties and the wiping quality of the wiper blade. The desired overall flexibility of the wiper blade rubber can be provided by the material of the wiper rubber base body.
    With regard to further technical features and advantages of the method according to the invention, reference is hereby explicitly made to the explanations in connection with the squeegee according to the invention and to the figures and the description of the figures.
    Another object of the present invention is a squeegee, or for a windshield wiper, such as a motor vehicle. The squeegee may in particular be produced by a method according to the invention.
    The squeegee comprises a wiper gum base of a natural and / or synthetic rubber, wherein the squeegee gum base is at least partially provided with a natural and / or synthetic rubber dispersion coating.
    The dispersion coating can be formed in particular from a primary rubber dispersion.
    In one embodiment, the dispersion coating comprises at least one natural and / or synthetic rubber and at least one filler.
    In particular, the dispersion coating may comprise natural rubber (NR) and / or chloroprene rubber (CR) and / or ethylene-propylene-diene rubber (EPDM).
    The at least one filler may in particular be selected from the group consisting of nanoparticle fillers, polyethylene particles, in particular particles of ultra-high molecular weight polyethylene (UHMW-PE particles) and / or particles of high density polyethylene (HDPE particles), polytetrafluoroethylene particles (PTFE particles) and mixtures thereof.
    In a further embodiment, the at least one filler comprises carbon nanotubes, in particular exfoliated carbon nanotubes and / or at least one nanoclays, in particular exfoliated and / or exfoliable nanoclays.
    In another embodiment, the squeegee base is formed of chloroprene rubber (CR) and / or ethylene-propylene-diene rubber (EPDM). In particular, the wiper rubber base may be formed of ethylene-propylene-diene rubber.
    With regard to further technical features and advantages of the wiper rubber according to the invention, reference is hereby explicitly made to the explanations in connection with the method according to the invention and to the figures and the description of the figures.
    Furthermore, the invention relates to a windshield wiper, which comprises a wiper rubber according to the invention.
    With regard to further technical features and advantages of the windshield wiper according to the invention, reference is hereby explicitly made to the explanations in connection with the squeegee according to the invention, the method according to the invention and to the figures and the description of the figures.
    drawings
    Further advantages and advantageous embodiments of the subject invention are illustrated by the drawings and explained in the following description. It should be noted that the
    Drawings are descriptive only and are not intended to limit the invention in any way. Show it
    Fig. 1 is a schematic, perspective view of an embodiment of a wiper blade according to the invention; and FIG. 2 is a diagram for illustrating an embodiment of a method according to the invention.
    Figure 1 shows a squeegee with a wiper base rubber 10 of a natural and / or synthetic rubber. The wiper rubber base body has a wiper lip 11, a tilting web 12 and a fastening section 13. In this case, the wiper lip 11 is connected via the tilting web 12 with the attachment portion 13. The wiper lip 11 has two side surfaces 11 a, 11 b and an end face 11 c. Between the side surfaces 11 a, 11 b and the end face 11 c, the wiping edges 11 d, 11 e are formed.
    FIG. 1 shows that the regions of the side surfaces 11 a, 11 b of the wiper lip 11, which form the wiping edges 11 d, 11 e, are provided with a natural and / or synthetic rubber dispersion coating 40. The dispersion coating 40 may optionally comprise a higher degree of crosslinking than the wiper rubber base body 10 and / or fillers, in particular fillers other than the wiper rubber base body 10. For example, the dispersion coating 40 may contain nanoparticle fillers, such as carbon nanoparticle fillers, for example carbon nanotubes, and / or nanotubes, and / or particles of ultra-high molecular weight polyethylene (UHMW-PE particles) and / or polytetrafluoroethylene particles (PTFE particles). include.
    FIG. 1 further shows that, in the context of the embodiment shown therein, the complete side surfaces of the wiper lip 11 and of the tilting web 12 are provided with the dispersion coating 40. Moreover, in the embodiment shown in FIG. 1, the attachment portion 13 is also partially provided with the dispersion coating 40. The end face 11c of the wiper lip 11, however, is uncoated.
    Such a squeegee can be produced by an embodiment of the method according to the invention by means of a double profile, which is explained in the context of Figure 2.
    FIG. 2 illustrates that in a method step a) a wiper rubber base 10, 10 '; 100 in the form of a squeegee rubber body of the double profile strand 10, 10 '; 100 is formed by extrusion from a natural and / or synthetic rubber. FIG. 1 shows that the double profile 10, 10 '; 100 in the form of two wiper rubbers is formed, whose wiper rubber base body 10,10 ', each having a wiper lip 11,11', a tilting web 12,12 'and a mounting portion 13,13' and at the later end faces of the wiper lips 11,11 ' connected to each other.
    FIG. 2 further shows that, in a method step b), at least part 11, 11 ', 12, 12' of the wiper rubber base body double-profile strand 10, 10 ', 100 is coated 40 with a natural and / or synthetic rubber dispersion 240 , 40 ', 140 becomes. The rubber dispersion 240 is from nozzles 200 on the side surfaces of the wiper lips 11,11 'and the tilting webs 12,12' and partially the mounting portions 13,13 'of the wiper rubber base-DoppelprofilStrangs 10,10'; 100 sprayed, of which 200 in Figure 2, however, only one, namely an upper nozzle 200, is shown graphically. However, the nozzles 200 need not be located above and below the squeegee base double-lobed strand 10,10 'as shown in FIG. 2; 100 can be arranged, but can also laterally of the wiper rubber base double-profile strand 10,10 '; 100 should be arranged, which should then not be aligned horizontally but vertically (not shown).
    FIG. 2 illustrates that the dispersion-coated wiper rubber base body 10, 10 ', 40, 40', 100, 140 is then dried in a method step c), for example by means of infrared radiation.
    FIG. 2 further illustrates that subsequently in a method step d) the dried, coated wiper rubber base body 10, 10 ', 40, 40', 100, 140 is vulcanized, for example in a salt bath. In this case, the wiper rubber base 10,10 '; 100 and the dispersion coating 40.40 '; 140 are particularly co-vulcanized.
    Subsequently, the wiper rubber base-body double-profile strand 10, 10 ', 40, 40', 100, 140 in a further process step e), not shown, can be separated into individual wiper rubbers, in particular cut. The cutting or cutting can take place in the longitudinal direction of the double profile for the formation of two single-profile strands and transverse to the strand direction to obtain individual wiper rubbers, which then as shown in Figure 1 can have an uncoated wiper lip end faces on Trennbziehungsweise sectional area.
    权利要求:
    Claims (15)
    [1]
    claims
    1. A process for producing a wiper blade rubber, in particular for a windscreen wiper, comprising the steps of: a) forming a wiper rubber base body (10, 100) from a natural and / or synthetic rubber and b) coating at least a portion of the wiper rubber base body (10; ) with a natural and / or synthetic rubber dispersion (40; 140).
    [2]
    The method of claim 1, wherein the rubber dispersion (40; 140) is a primary dispersion.
    [3]
    A process according to claim 1 or 2, wherein the rubber dispersion (40; 140) contains at least one filler.
    [4]
    4. The method of claim 3, wherein the at least one filler is added to a reaction mixture for forming the rubber primary dispersion before or during a polymer formation reaction.
    [5]
    5. The method of claim 3 or 4, wherein the at least one filler is selected from the group consisting of nanoparticle fillers, polyethylene particles, in particular particles of ultra high molecular weight polyethylene and / or particles of high density polyethylene, polytetrafluoroethylene particles and mixtures thereof.
    [6]
    6. The method according to any one of claims 3 to 5, wherein the at least one filler comprises a nanoparticle filler which is selected from the group of carbon nanoparticle fillers, in particular carbon nanotubes, Nanotonerden and mixtures thereof.
    [7]
    7. The method according to any one of claims 1 to 6, wherein the wiper rubber base (10; 100) in step a) by extrusion, in particular in the form of a wiper base rubber strand is formed.
    [8]
    8. The method according to any one of claims 1 to 7, wherein the coating in step b) by spraying the rubber dispersion.
    [9]
    9. The method according to any one of claims 1 to 8, wherein the wiper rubber base (10; 100) in step a) of ethylene-propylene-diene rubber and / or chloroprene rubber, in particular ethylene-propylene-diene rubber is formed, and wherein in Process step b) an ethylene-propylene-diene rubber, chloroprene rubber and / or natural rubber dispersion is used.
    [10]
    10. The method according to any one of claims 1 to 9, wherein the rubber dispersion (40; 140) has a higher crosslinker content than the rubber of the wiper rubber base body (10; 100).
    [11]
    11. The method according to any one of claims 1 to 10, wherein the method further comprises the steps of: c) drying the coated wiper gum base (10.40, 100.140) and d) vulcanizing the dried, coated wiper gum base (10.40, 100.140), in particular wherein the drying in process step c) is effected by infrared irradiation and wherein the vulcanization in process step d) takes place in a salt bath.
    [12]
    12. squeegee, in particular for a windshield wiper, in particular produced by a method according to one of claims 1 to 11, comprising a wiper rubber base body (10) made of a natural and / or synthetic rubber, wherein the wiper base rubber (10) at least partially with a nature and / or synthetic rubber dispersion coating (40), in particular wherein the dispersion coating (40) is formed from a primary rubber dispersion.
    [13]
    13. squeegee according to claim 12, wherein the dispersion coating (40) at least one natural and / or synthetic rubber and at least one filler, in particular selected from the group consisting of nanoparticle fillers, polyethylene particles, in particular particles of ultra high molecular weight polyethylene and / or particles of high density polyethylene, polytetrafluoroethylene particles and mixtures thereof, in particular wherein the at least one filler comprises carbon nanotubes, in particular exfoliated carbon nanotubes, and / or at least one nanoclays, in particular exfoliated and / or exfoliable nanoclays
    [14]
    14. squeegee according to any one of claims 12 to 13, wherein the squeegee rubber body (10) of ethylene-propylene-diene rubber and / or chloroprene rubber, in particular ethylene-propylene-diene rubber, is formed, and wherein the dispersion coating (40) ethylene Propylene-diene rubber and / or chloroprene rubber and / or natural rubber.
    [15]
    15. A windscreen wiper comprising a squeegee (10,40) according to any one of claims 1 to 14.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2332792B1|2016-07-13|Wiper blade rubber and production method
    WO2009121651A1|2009-10-08|Coating for elastomeric linear profiles, in particular windscreen-wiper blades, and process for production thereof
    DE69826467T2|2005-12-08|COATING LAYER OF A POLYMER AND A DISPERSED LAYER MATERIAL, METHOD FOR COATING OBJECTS WITH THE LOCKING LAYER AND COATED COMPOSITIONS, ESPECIALLY TIRES
    EP2398848B1|2019-12-04|Process for producing elastomeric linear profile
    DE10116929A1|2002-11-07|Sliding varnish component, sliding varnish and process for coating elastomers such as wiper blades
    DE102013110977A1|2015-04-02|Self-sealing tire sealant and pneumatic vehicle tire
    BE1022654B1|2016-06-27|DISPERSION-COATED WIPER RUBBER
    DE102015207937A1|2016-11-03|Pneumatic vehicle tire with a tread
    DE102007045763B4|2010-06-17|Refrigerant transport hose and manufacturing method therefor
    DE69823291T2|2005-05-04|tires
    BE1021284B1|2015-10-20|WIPER RUBBER PRODUCTION BY MERGER CRUCIBLE FLUID
    BE1020734A3|2014-04-01|WIPER RUBBER PRODUCTION BY TISSUE RIBBON.
    EP2825584A1|2015-01-21|Epdm wiper rubber
    EP2025707B1|2012-02-01|Cable extrudate and method for its manufacture and application
    DE4128613A1|1992-03-05|Tyres, esp. improved all-weather tyres - have tread in the form of many blocks made of cellular rubber contg. short fibres oriented in a specified way
    EP3645348A1|2020-05-06|Wiper rubber with optimized coating layer thickness
    EP3475102B1|2020-05-06|Self-sealing pneumatic vehicle tyre and method for the production thereof
    BE1021337B1|2015-11-04|MESH PRODUCTION BY MICROVERTING
    DE102019200001A1|2020-07-02|Process for producing a squeegee with a combination layer consisting of a particle layer and a friction-reducing material
    BE1021615B1|2015-12-18|SURFACE WIPER WITH SURFACE STRUCTURING AND HIGH HYDROPHOBIC LAYER
    DE102012014871B4|2019-02-14|Multilayer vehicle interior trim part and method for producing a multilayer vehicle interior trim part
    BE1018597A5|2011-04-05|WISCHBLATT.
    WO2016087091A1|2016-06-09|Pneumatic vehicle tire
    DE102012223109A1|2014-06-18|Producing air spring unit by forming rolling bellows of air spring unit from elastomeric material and reinforcing material, and adding nanoscale material to elastomer material so that bellows include outer layer made of nanoscale material
    EP2440606B1|2015-06-24|Method for coating an extruded section
    同族专利:
    公开号 | 公开日
    US20140237751A1|2014-08-28|
    FR3002506A1|2014-08-29|
    DE102013203194A1|2014-08-28|
    FR3002506B1|2018-03-16|
    MX2014002257A|2014-09-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB2154864A|1984-03-02|1985-09-18|Honda Motor Co Ltd|Wiper blade|
    WO2003042016A2|2001-11-14|2003-05-22|Valeo Systemes D'essuyage|Water-retention coating for a windscreen wiper blade, wiper blade provided with same and method for coating a blade with same|
    JP2007332269A|2006-06-15|2007-12-27|Nok Corp|Coating agent for rubbery elastomer|
    FR2940778A1|2009-01-08|2010-07-09|Bosch Gmbh Robert|Windscreen wiper blade comprises wiper blade and powder coating, where the powder coating covers at least part of the wiper blade and the powder coating contains powder strongly pre-crosslinked by natural and/or synthetic rubber|
    US4912803A|1982-04-03|1990-04-03|Toyoda Gosei Co., Ltd.|Wiper blade rubber|
    DE10106566A1|2001-02-13|2002-08-22|Basf Coatings Ag|Aqueous coating material substantially or completely free of volatile organic substances, process for its preparation and its use|
    JP2004017948A|2002-06-20|2004-01-22|Ge Toshiba Silicones Co Ltd|Rubber of wiper blade and method for manufacturing the same|
    US20070244254A1|2006-04-12|2007-10-18|Tonson Abraham|Weatherable thermoplastic vulcanizates from polyolefins and diene or diene/vinylaromatic monomer rubbers|
    DE102006059932A1|2006-12-19|2008-06-26|Robert Bosch Gmbh|Method and device for producing a strand-shaped extrudate|
    DE102007034328A1|2007-07-24|2009-01-29|Robert Bosch Gmbh|Extruded extrudate and process for its preparation and use|
    CA2623553C|2007-08-17|2013-01-15|Adm 21 Co., Ltd.|Composition for coating wiper blade rubbers, coating method using the same and wiper blade rubbers made therefrom|
    US20110008623A1|2007-09-14|2011-01-13|Dow Global Technologies Inc.| coat polymeric particulate, and a process for coating a polymeric particulate|
    KR101898303B1|2010-12-14|2018-09-12|몰레큘라 레바 디자인 엘엘씨|Improved elastomer formulations|US20190100169A1|2017-10-03|2019-04-04|Ford Global Technologies, Llc|Wiper and method of forming the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013203194.7A|DE102013203194A1|2013-02-27|2013-02-27|Dispersion-coated squeegee|
    DE102013203194.7|2013-02-27|
    [返回顶部]