• 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 invention relates to a method for producing a squeegee, in particular for a windshield wiper of a motor vehicle, in which particles (2) are pressed onto a squeegee base (1), the particles (2) each having a particle core (2a) made from a first thermoplastic or thermosetting polymer and have a particle core coating (2b) made of an adhesive.
    公开号:BE1019080A3
    申请号:E2010/0294
    申请日:2010-05-17
    公开日:2012-02-07
    发明作者:Reiner Lay；Hilde Parton
    申请人:Bosch Gmbh Robert；
    IPC主号:
    专利说明:

    description
    title
    Process for producing a wiper rubber
    The present invention relates to a method for producing a wiper blade, in particular for a windscreen wiper of a motor vehicle, and wiper blades produced by such a method.
    Prior art DE 10125045 describes a wiper blade with a squeegee which has a squeegee lip partly made of polyethylene and a method for producing such a squeegee blade.
    Disclosure of the invention
    In the method according to the invention for producing a wiper blade rubber, in particular for a windscreen wiper of a motor vehicle, particles are applied to a wiper rubber base body, in particular a wiper rubber base body with a wiper lip, wherein. Particles each have a particle core of a first thermoplastic or thermosetting polymer and a particle core coating of an adhesive. This has the advantage that the bond between the particles and the one wiper rubber base can be improved by the adhesive.
    In the context of the present invention, a "thermoplastic polymer" is understood as meaning a thermoplastic polymer, mixtures of a plurality of different thermoplastic polymers, mixtures of a thermoplastic polymer with one or more additives and mixtures of a plurality of different thermoplastic polymers and one or more additives.
    In the context of the present invention, a "thermosetting polymer" is understood as meaning a thermoset, in particular crosslinked, polymer, mixtures of a plurality of different thermoset polymers, mixtures of a thermosetting polymer with one or more additives and mixtures of several different thermoset polymers and one or more additives.
    In principle, an "adhesive agent" can be understood to mean any substance and any substance mixture which can enter into a chemical and / or physical bond both with the particle core and with the wiper rubber base body.
    In the context of one embodiment of the method according to the invention, the wiping gum base provided with the particles is heated. In particular, the particulate wiper rubber base is heated to a temperature which is greater than or equal to the liquefaction temperature of the adhesive, and / or the adhesive adheres chemically and / or physically to the wiper base, in particular to the wiper base and particulate cores , By liquefying and then solidifying the adhesive or by forming bonds between the adhesive agent, the wiper rubber base body and the particle cores, the particle cores can be advantageously fixed on the surface of the wiper rubber base body.
    In this case, the "liquefaction temperature" is understood in particular to mean the temperature at which the adhesive or a thermoplastic polymer changes from the solid state or the glass state into the liquid state. For crystalline thermoplastic polymers, the term "liquefaction temperature" can be understood to mean the melting temperature. In the case of amorphous thermoplastic polymers, "liquefaction temperature" can be understood as meaning the glass transition temperature or softening temperature. For semi-crystalline and partially amorphous thermoplastic polymers, the term "liquefaction temperature" is understood to mean the lower of the two temperatures (melting temperature or glass transition temperature / softening temperature).
    In a further embodiment of the method according to the invention, the wiping gum base provided with the particles is heated to a temperature which is lower than the liquefaction temperature or decomposition temperature of the first thermoplastic or thermosetting polymer. In this way it can be ensured that the shape of the particle cores is maintained.
    Within the scope of a further embodiment of the method according to the invention, the wiper gum base provided with the particles is heated in a salt bath or by hot air.
    Preferably, the particulate wiper rubber base after heating is cooled to a temperature lower than the liquefaction temperature of the adhesive. In this way, the adhesive can solidify again and thereby the particle cores are fixed on the surface of the wiper rubber base.
    In the context of the method according to the invention, the particles can be applied by coating the wiper base with a particle-containing dispersion or by dusting the wiper base with particles, for example by an electrostatic powder coating method or by a particle-containing fluidized bed, in particular an electrostatic powder coating method.
    The particles can be applied to the entire surface or only to a part of the surface of the wiper rubber base body, in particular to the surface of the wiper lip of the wiper rubber base body.
    Within the scope of a further embodiment of the method according to the invention, the wiper rubber base body comprises at least one rubber selected from the group consisting of natural rubber, synthetic rubbers and mixtures thereof. For example, the squeegee gum base may comprise at least one rubber selected from the group consisting of natural rubber, chloroprene rubber, ethylene-propylene-diene rubber, and mixtures thereof. More specifically, the squeegee gum base may be made of a rubber selected from the group consisting of natural rubber, synthetic rubbers, and mixtures thereof. For example, the squeegee gum base may be formed of a rubber selected from the group consisting of natural rubber, chloroprene rubber, ethylene-propylene-diene rubber, and mixtures thereof. Here, "formed" means that the squeegee base has no elastomers other than those listed, it being understood that the squeegee base may include other compounds, for example, additives such as anti-aging and processing aids.
    (In a further embodiment of the method according to the invention, the particle cores comprise at least one polymer selected from the group consisting of polyolefins, polyamides, polyimides, polyesters, polyethers, polysulfones, polyhalogenolefins, epoxide resins, amino resins, alkyd resins, phenolic resins and mixtures thereof at least one polymer selected from the group consisting of polyethylene, in particular ultra-high molecular weight polyethylene, polytetrafluoroethylene, epoxide oxides, amino resins, alkyd resins, phenolic resins and mixtures thereof These polymers are in particular for an improvement, in particular reduction, of the friction values, for example In particular, the particle cores may be composed of at least one polymer selected from the group consisting of polyolefins, polyamides, polyimides, polyesters, polyethers, polysulfones, polyhalogoluenes, epoxies resins, amino resins, alkyd resins, phenolic resins and mixtures thereof. For example, the particle cores may be formed of at least one polymer selected from the group consisting of polyethylene, in particular ultra-high molecular polyethylene, polytetrafluoroethylene, epoxy resins, amino resins, alkyd resins, phenolic resins and mixtures thereof. Here, "formed" means that the particle cores do not have any other polymers than those listed, wherein it is not excluded that the particle cores may comprise other compounds, for example additives.
    In the context of a further embodiment of the method according to the invention, in each case the particle core coating substantially completely surrounds the particle core. In this way, a good binding of the particles to the wiper rubber base body, regardless of the orientation of the particles after the orders, can be ensured.
    In the context of a further embodiment of the method according to the invention, the adhesion agent has a liquefaction temperature which is lower than the liquefaction temperature or decomposition temperature of the first thermoplastic or thermoset polymer, or the adhesive at a temperature a chemical and / or physical bond with the wiper rubber base body, in particular that of the wiper rubber base and the particle cores, which is lower than the condensing temperature or decomposition temperature of the first thermoplastic or thermosetting polymer. In this way it can be ensured that the shape of the particle cores is maintained.
    Within the scope of a further embodiment of the method according to the invention, the adhesion agent is a second thermoplastic polymer which differs in composition from the first thermoplastic or thermosetting polymer. Preferably, the second thermoplastic polymer has a liquefaction temperature which is lower than the liquefaction temperature or decomposition temperature of the first thermoplastic or thermosetting polymer. In this way, the adhesive can be liquefied, whereby the shape of the particle cores can be obtained.
    In the context of a further embodiment of the method according to the invention, the particle coating or the adhesion agent comprises at least one polymer selected from the group consisting of polyamides, polyacrylates, polyesters, polyethers (POM), polyolefins, in particular polyethylene, polypropylene, ethylene-propylene copolymers, In particular, the particle coating or adhesive may comprise at least one polymer selected from the group consisting of polyethylene having an average molecular weight of <100,000 kg / mol, maleic anhydride grafted polyethylene, chlorinated polyethylene
    Polyethylene, polypropylene, maleic anhydride grafted polypropylene, ethylene-propylene copolymers, maleic anhydride grafted ethylene-propylene copolymers, polyamides, polyacrylates, polyesters, polyethers (POM), and mixtures thereof. For example, the particle coating or adhesive may comprise at least one polymer selected from the group consisting of polyamides, polyacrylates, polyesters, polyethers (POM), polyolefins, especially polyethylene, polypropylene, ethylene-propylene copolymers, modified polyethylene, and mixtures thereof, In particular, the particle coating or the adhesive agent may consist of at least one polymer selected from the group consisting of polyethylene with an average molecular weight of 100,000 kg / mol, polyethylene grafted with maleic anhydride, chlorinated polyethylene, polypropylene, maleic anhydride grafted polypropylene, ethylene Propylene copolymers, maleic anhydride grafted ethylene-propylene copolymers, polyamides, polyacrylates, polyesters, polyethers (POM) and mixtures thereof. In this case, "formed" means that the particle coating or the adhesion agent has no other polymers than those listed, wherein it is not ruled out that the particle coating or the adhesion agent may comprise other compounds, for example additives.
    The particle coating or the adhesion agent preferably comprises non-polar, electrically non-conductive substances. In particular, the particle coating or the adhesive may consist of non-polar, electrically non-conductive substances. In this way, the particles can be electrostatically charged better. As a result, the electrostatic application by means of fluidized bed or spray method advantageously be significantly simplified.
    For example, the squeegee gum base may be formed of ethylene-propylene-diene rubber, the particulate cores may be formed of at least one polymer selected from the group consisting of ultra-high molecular weight polyethylene, polytetrafluoroethylene, epoxy resins, amino resins, alkyd resins, phenolic resins, and mixtures thereof. and - the particle core coating may consist of at least one polymer selected from the group consisting of polyethylene having an average molecular weight of <100,000 kg / mol, polyethylene grafted with maleic anhydride, polypropylene, maleic anhydride grafted polypropylene, ethylene-propylene copolymers, maleic anhydride grafted ethylene-propylene Copolymers, polyamides, polyacrylates, polyesters, polyethers (POM) and mixtures thereof.
    Another object of the present invention is a squeegee made by a method according to the invention, in particular for a windscreen wiper of a motor vehicle. Depending on the process parameters, a squeegee produced by the method according to the invention can be configured differently.
    Another object of the present invention is a squeegee, in particular produced by a method according to the invention, for example for a windscreen wiper of a motor vehicle comprising a wiper base, in particular a wiper base with a wiper lip, wherein at least a part of the surface of the wiper base has Parti-kel (cores) , characterized in that the particles (cores) are connected via an adhesive agent with the wiper rubber base body.
    The particles may be arranged on the entire surface or only on a part of the surface of the wiper rubber base body, for example the surface of the wiper lip of the wiper rubber base body.
    The adhesive may be in the form of a coherent layer or in the form of a net-like layer.
    Within the scope of one embodiment of the wiper blade rubber according to the invention, the particles (cores) are each connected to the wiper rubber base via adhesion medium bases. In particular, the particles (cores) can in each case be arranged on and / or in the adhesive agent sockets. In this way, the particles (cores) on externally accessible areas, which are brought in example with a glass plate in contact and can improve the friction properties of the wiper blade rubber. In this case, the adhesive base can touch each other. In the context of one embodiment, at least a part of the adhesive agent base is arranged separately from one another on the surface of the wiper rubber base body.
    With regard to further features of the wiper blade rubber according to the invention, for example with regard to the compounds which may comprise the wiper rubber base body, the particles (see particle cores) and / or the adhesion agent, reference is hereby explicitly made to the explanations in connection with the method according to the invention.
    Another object of the present invention relates to the use of particles, each having a particle core of a first thermoplastic or thermosetting polymer and a particle core coating of an adhesive, for producing a, in particular (parti) coated wiper rubber, for example a squeegee with wiper lip , in particular for a windscreen wiper of a motor vehicle.
    With regard to further features of the use according to the invention of particles, for example with regard to the compounds which may comprise the particle cores and / or the adhesion agent, reference is hereby explicitly made to the explanations in connection with the process according to the invention.
    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 have only descriptive character and are not intended to limit the invention in any way. Show it:
    1 shows a schematic cross section through a wiper rubber base body, on which a particle has been applied, which has a particle core and a particle coating; and
    2 shows a schematic cross section through the wiper rubber base body shown in FIG. 1 after heating.
    FIG. 1 illustrates that, in the context of the method according to the invention, particles 2 which each have a particle core 2a made of a first thermoplastic or thermosetting polymer and a particle core coating 2b made of an adhesive agent are applied to a wiper rubber base body 1, for example a wiper rubber base body having a wiper lip. FIG. 1 shows that the particle core 2a is completely surrounded by the particle coating 2b.
    FIG. 2 shows the wiping rubber base body 1 provided with particles 2 after heating to a temperature at which the adhesive agent of the particle coating 2b liquifies and which is lower than the liquefaction temperature or decomposition temperature of the first thermoplastic or thermoset polymer of the particle core 2a. FIG. 2 illustrates that part of the surface 4 of the wiper rubber base body 1 has a particle 2a which corresponds to the particle core used and which is connected to the wiper rubber base body 1 via the adhesion agent 2b 'of the former particle coating 2b. FIG. 2 further shows that the adhesive agent of the particle coating 2b has deformed into an adhesive agent base 2b 'on and in which the particle (core) 2a is arranged.
    r
    权利要求:
    Claims (15)
    [1]
    1. Verfahren zur Herstellung eines Wischgummis, insbesondere für einen Scheibenwischer eines Kraftfahrzeugs, in dem auf einen Wischgummigrundkörper (1) Particle (2) aufgetragen, wobei die Partikelern (2a) eruischen thermoplastic Polymeric thermoplastic. eine Partikelkernbeschichtung (2b) aus einem Adhäsionsmittel aufweisen.
    [2]
    2. Verfahren nach Anspruch 1, dadurch charactnzeichnet, dass der mit den Partikeln (2) versehene Wischgummigrundkörper (1) auf eine Temperatur erhitzt wird,
    welche größer oder gleich der Verfiüssigungstemperatur des Adhäsionsmittels ist, und / oder
    bei der das Adhäsionsmittel a chemical and / or physical bond with the Wischgummigrundkörper (1) eingeht.
    [3]
    3. Verfahren nach Anspruch 1 oder 2, dadurch charactnzeichnet, dass der mit den Partikeln (2) versehene Wischgummigrundkörper (1) auf eine Temperatur erhitzt wird, which is smaller than that Verflüssigungstemperatur oder Zersetzungstemperatur des ersten duroplasts thermoplastics.
    [4]
    4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch charactnzeichnet, dass der mit den Partikeln (2) versehene Wischgummigrundkörper (1) in a Salzbad oder per Heißluft erhitzt wird.
    [5]
    5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch charactnzeichnet, dass der Wischgummigrundkörper (1) mindestens einen Kautschuk, ausgewählt aus der Gruppe besthend aus Naturkautschuk, synthetics Kautschuken und Mischungen davon, umfasst.
    [6]
    6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch charactnzeichnet, dass die Partikelkerne (2a) mindestens ein Polymer ausgewählt aus der Gruppe besthend aus Polyolefins, Polyamides, Polyimides, Polyesterern, Polyethern, Polysulfones, Polyhalogenolefins, Epoxidarzenes, Epoxidarzenes, Epoxidarzenes, Epoxidarzenes , Phenolharzen und Mischungen davon, umfassen.
    [7]
    7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch charactnzeichnet, dass das die Partikelkernbeschichtung (2b) den Partikelkern (2a) im Wesentlichen vollständig umgibt.
    [8]
    8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch charactnzeichnet, das das Adhäsionsmittel ein zweites thermoplastic Polymer ist, welches sich in seiner Zusammensetzung vom ersten thermoplastic or duroplastic Polymer unterscheidet.
    [9]
    9. Verfahren nach einem der Ansprüche 1 bis 8, dadurch charactnzeichnet, dass das Adhäsionsmittel mindestens ein Polymer, ausgewählt aus der Gruppe besthend aus Polyamides, Polyacrylates, Polyester, Polyether, Polyolefins and Mischungen davon, umfasst.
    [10]
    10. Verfahren nach einem der Ansprüche 1 bis 9, fatherurch Maleinsäureanhydrid aufgepfropftem Polypropylen, Ethylen-Propylen-Copolymers, Maleinsäureanhydrid aufgepfropften Ethylen-Propylen-Copolymers, Polyamides, Polyacrylates, Polyester, Polyethern und Mischungen davon, umfasst.
    [11]
    11. Verfahren nach einem der Ansprüche 1 bis 10, dadurch charactnzeichnet, dass
    der Wischgummigrundkörper (1) aus Ethylen-Propylen-Dien-Kautschuk ausgebildet ist,
    die Partikelkeme (2a) aus mindestens einem Polymer, ausgewählt aus der Gruppe bestehend aus ultrahochmolekularem Polyethylen, Polytet
    rafluoroethyls, Epoxid resins, Amino-resins, Alkyd resins, Phenol-resins and Mischungen davon, ausgebildet sind, und die Partikelkernbeschichtung (2b) aus mindestens einem Polymer, ausgewählt aus der Gruppe besthend aus Polyethylen mit polypropylene moltenflufpaufte mpfmfpfmfpfmfpfmfpfmfpfmfmpfpfmfpfpfmfpfpfmfpfpfmpfpfmpfmfp. , Maleinsäureanhydrid aufgepfropftem Polypropylen, Ethylen-Propylen-Copolymers, Maleinsäureanhydrid aufgepfropften Ethylen-Propylen-Copolymers, Polyamides, Polyacrylates, Polyester, Polyethern (POM) und Mischungen davon, ausgebildet ist.
    [12]
    12. Wischgummi, hergestellt durch ein Verfahren nach einem der Ansprüche 1 bis 11.
    [13]
    13. Wischgummi, umfassend einen Wischgummigrundkörper (1), wobei zumindest ein Teil der Oberfläche (4) des Wischgummigrundkörpers (1) Particle (2a) aufweist,
    dadurch charactnzeichnet, dass
    die Partikel (2a) über ein Adhäsionsmittel (2b ') mit dem Wischgummigrundkörper (1) connected sind.
    [14]
    14. Wischgummi nach Ansprüche 13, dadurch charactnzeichnet, dik die Partikel (2a) jeweils über Adhäsionsmittelsockel (2b ') mit dem Wischgummigrundkörper (1).
    [15]
    15. Verwendung von Partikeln (2), welche jeweils einen Particle kernel (2a) aus einem ersten thermoplastic or duroplastic Polymer und eine Partikelkernbeschichtung (2b) aus einem Adhäsionsmittel aufweisen, zur Herstellung eines Wischgummw e für einenbüb e für einen König.
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    同族专利:
    公开号 | 公开日
    FR2945812A1|2010-11-26|
    DE102009003234A1|2010-11-25|
    FR2945812B1|2013-12-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10132026A1|2000-07-05|2002-02-28|Denso Corp|Coating agent for a rubber wiper blade and rubber wiper blade with this coating|
    DE10125045A1|2001-05-23|2002-12-05|Bosch Gmbh Robert|wiper blade|
    JP2003253214A|2002-03-05|2003-09-10|Akurosu Kk|Coating composition and wiper blade|
    JP2005145166A|2003-11-12|2005-06-09|Shin Etsu Polymer Co Ltd|Wiper blade|
    DE102007012924A1|2007-03-19|2008-09-25|Robert Bosch Gmbh|Wiper rubber and process for its preparation|
    DE102007036780A1|2007-08-03|2009-02-05|Robert Bosch Gmbh|Process for producing a coated elastomer profile, an elastomer profile and its use|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102009003234A|DE102009003234A1|2009-05-19|2009-05-19|Producing a wiper rubber, useful for a windscreen wiper of a motor vehicle, comprises applying a particle to a wiper rubber base body, where the particle exhibits a particle core and a particle core coating|
    DE102009003234|2009-05-19|
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