• 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:
    Surface film for a sports device, in particular for skis, snowboards or water sports equipment, wherein at least one layer (5), which polystyrene (PS), a styrene-acrylonitrile (SAN), a styrene block copolymer (SBC) and / or a styrene-maleic anhydride ( SMA).
    公开号:AT519950A1
    申请号:T50355/2017
    申请日:2017-05-02
    公开日:2018-11-15
    发明作者:Christian Gornik Dr
    申请人:Isosport Verbundbauteile Ges M B H；
    IPC主号:
    专利说明:

    Summary
    Surface film for a sports device, especially for skis, snowboards or
    Water sports equipment, with at least one layer (5), which is polystyrene (PS)
    Styrene-acrylonitrile (SAN), a styrene block copolymer (SBC) and / or a styrene-maleic anhydride (SMA).
    (Fig. 1) / 13
    81628 32 / cr
    The present invention relates to a surface film for a sports device, in particular skis, snowboards or water sports devices, with the features of
    The preamble of claim 1 and a sports device, in particular a ski
    Snowboard or a water sports device, with such a surface film.
    Generic sports equipment is exposed to high stresses in the surface area. Figure 1 shows a cross section of such a sports device, which consists in a simplified form of a surface film 1, a base body 2 and an underside 3. According to the known prior art, films with thicknesses in the range between typically 0.1 mm and 0.8 mm are used on the ski surface.
    For optimal design options, the surface film is transparent and is decorated from behind. Furthermore, high demands are made with regard to processing temperatures and usage temperatures. The decoration of the ski surface material takes place, for example, by means of screen printing, with this decoration the solvent resistance of the film and the temperature resistance in the drying process being important. There is also the possibility to decorate the foils by means of digital direct printing, whereby systems based on solvent-based inks, water-based inks, latex inks and UV-curing inks can be used.
    When processed in the ski press, the ski surface material must withstand temperature loads in the range between 60 ° C and 130 ° C, depending on the manufacturing process, and pressures of a few bar without the material starting to flow to a large extent. A high level of adhesion between the film and the adhesive system used is a prerequisite for the suitability of the film material for the ski manufacturing process. When in use, i.e. on the ski slope, the surface film is exposed to temperatures down to -30 ° C, in exceptional cases even below it, and to high UV exposure. In addition, large mechanical stresses occur due to the deflection of the sports equipment. The / 13
    Surface film must withstand these loads without embrittlement and without breakage.
    Today, transparent foils based on relatively expensive polyamide 11 or polyamide 12 are used as surface foils for all of the above-mentioned decoration processes. If the demands on wear resistance are lower, films made from less expensive MABS / TPU blends (methyl methacrylate acrylonitrile butadiene styrene / thermoplastic polyurethane) are known to be used, but because of their lower temperature resistance they are not suitable for thermal diffusion decoration and the press temperatures must not exceed about 100 ° C, otherwise the material will start to flow and run out of shape. The MABS used is a transparent blend that contains finely divided rubber particles. Another problem with MABS / TPU blend materials for ski surfaces is the occurrence of so-called whitening when the film is formed. This phenomenon occurs due to the MABS content in these films and is known to the person skilled in the art. Especially on ski surfaces that run up to the steel edge of the ski, the whitening in the narrow radii of deformation at the edges is a visual impairment, so that MABS / TPU surface films are eliminated for many of these applications.
    State of the art are also 2-layer films, in which the top consists of pure TPU (thermoplastic polyurethane) and the bottom consists of a MABS / TPU blend, the top being very wear-resistant due to the TPU and the bottom due to the MABS / TPU -Blends good adhesion to screen printing and digital printing inks. Whitening also occurs with such TPU-MABS / TPU coex films, albeit to a lesser extent than with MABS / TPU monofilms.
    In many cases, the decorated surface film is pressed with a prepreg or a resin-soaked fabric, which then brings the necessary rigidity to the sports equipment. The so-called telegraphic effect then occurs, which means that the prepreg or fabric structure is pushed through the surface film. After / 13 after the pressing, the surface that was smooth before pressing shows an uneven surface structure that is both visually visible and noticeable. What is desired, however, is one that is as smooth and shiny as possible
    Preserve surface even after pressing. So far, this has only been possible through
    Overpaint with a transparent clear coat, which additional costs in the
    Manufacture of the sports equipment causes.
    The object of the invention is to provide a surface film for a sports device which is improved with respect to at least one of the following:
    Wear resistance, whitening behavior, temperature resistance, flawless surface on sports equipment.
    This object is achieved by a surface film with the features of claim 1.
    This is done by providing at least one layer that contains styrene, polystyrene (PS), styrene-acrylonitrile (SAN), styrene block copolymer (SBC) and / or styrene-maleic anhydride (SMA).
    In fact, it has been shown that the use of a blend with the styrene-containing polymers mentioned can even achieve an improvement in all areas, while at the same time providing sufficient transparency. In particular, there is no whitening.
    Further advantageous embodiments of the invention are defined in the dependent claims.
    A first layer and a second layer can be provided, at least one of the two layers containing a thermoplastic polyurethane (TPU).
    For simple manufacture, it can be provided that exactly two layers of the surface film are provided.
    / 13
    The thermoplastic polyurethane can be an aromatic polyurethane, which preferably has a hardness of at least 50 ShoreD.
    The layer thickness distribution of the first layer and the second layer can be between 20:80 and 80:20.
    The at least one layer can contain a thermoplastic polyurethane, in particular the blend with the styrene-containing polymers (PS; SAN; SBC; SMA) can have a thermoplastic polyurethane. The mixing ratio between the styrene-containing polymer and the thermoplastic polyurethane can then be between 99: 1 and 1:99, preferably between 50:50 and 3:97.
    The same thermoplastic polyurethane can be used for the first layer and the second layer. However, this is not absolutely necessary in the context of the invention. Different thermoplastic polyurethanes can also be used.
    Protection is also sought for a sports device whose surface is at least partially covered with a surface film according to the invention.
    In particular, an upper side of the sports device can be covered by the surface film according to the invention. The invention can be used on skis, snowboards or water sports equipment.
    The surface film according to the invention can in particular be applied such that the first layer lies between the sports equipment and the second layer.
    Further advantages and details of the invention result from the figures and the associated figure description. Show:
    Fig. 1 shows a cross section through an inventive sports device and
    2 shows the layer structure of the surface film / 13 according to the invention
    1 shows a sports device according to the invention, in this case a ski, in section. The surface film 1, the base body 2 and one can be seen
    Bottom 3.
    Exemplary embodiments for the surface film 1 are described in connection with FIG. 2.
    FIG. 2 shows a sectional illustration of the surface film 1, which has a first layer 5 and a second layer 4. It has been shown that a plastic blend of a styrene-containing polymer and a thermoplastic polyurethane meets the requirements for use as a surface film. One of the challenges when choosing the basic components of a transparent plastic blend is to find components that also give a transparent film to extrusion, which can be carried out on twin-screw extruders or on single-screw extruders. Even if the basic components of the blend are transparent in themselves, but differ in their refractive indices, it is no longer possible (for example) to obtain a transparent blend after extrusion. The mixture of polystyrene (PS), styrene-acrylonitrile (SAN), styrene block copolymers (SBC) or styrene-maleic anhydride (SMA) and thermoplastic polyurethane (TPU) has shown that the transparency of a blend of the components mentioned in almost every mixing ratio is preserved. The thermoplastic polyurethane is an aromatic polyurethane and has a hardness of over 50 ShoreD. The styrene-containing polymers mentioned do not contain any rubber particles and do not have to be polymer blends composed of several components. Rather, block, graft or statistical copolymers with styrene can be used. Furthermore, the properties of the blend can be adjusted over a wide range by the mixing ratio.
    Two examples of the surface film according to the invention are described below:
    / 13
    Example 1:
    A TPU from COIM (type LCS 848) with a hardness of 69 ShoreD is mixed with an SMA from Polyscope (Xiran SZ23110) in a ratio of 95: 5 and extruded into a film on a single-screw extruder. The transparency of the film with a thickness of 0.5 mm made of 100% TPU is 81%, the transparency of the film made of the mixture of TPU and SMA is also 81%. The Vicat softening temperature (VST A120) of the pure TPU film is 59 ° C, that of the mixture of TPU with SMA is 74 ° C. So there is a significant increase in temperature resistance.
    Example 2:
    A TPU from Bayer (type Desmopan 9662D) with a hardness of 62 ShoreD is mixed with a SAN from BASF (type Luran 348Q) in a ratio of 75:25 and processed into a film in coextrusion with pure TPU, the Layer distribution is 50:50. The Vicat softening temperature (VST A120) of this film with a total thickness of 0.46 mm is 121 ° C.
    According to the invention, decorative or functional fillers can also be introduced into the blend mentioned. Decorative fillers are, for example, color pigments or mother-of-pearl pigments, which mainly influence the visual appearance of the film. Functional fillers can be, for example, glass spheres that improve abrasion resistance. The addition of UV absorbers and UV stabilizers improve the resistance to UV radiation.
    Innsbruck, on May 2, 2017/13
    81628 32 / eh
    权利要求:
    Claims (10)
    [1]
    claims
    1. Surface film for a sports device, in particular for skis, snowboards or water sports equipment, characterized by at least one layer (5), which polystyrene (PS), a styrene-acrylonitrile (SAN), a styrene block copolymer (SBC) and / or a styrene -Maleic anhydride (SMA) includes.
    [2]
    2. Surface film according to claim 1, characterized in that a first layer (5) and a second layer (4) are provided, at least one of the two layers containing a thermoplastic polyurethane (TPU).
    [3]
    3. Surface film according to claim 2, characterized in that the surface film (1) has exactly two layers.
    [4]
    4. Surface film according to claim 2 or 3, characterized in that the thermoplastic polyurethane is an aromatic polyurethane, which preferably has a hardness of at least 50 ShoreD.
    [5]
    5. Surface film according to one of claims 2 to 4, characterized in that a layer thickness distribution between the first and the second layer is between 20:80 and 80:20.
    [6]
    6. Surface film according to one of the preceding claims, characterized in that the at least one layer (5) is a blend of polystyrene (PS), a styrene-acrylonitrile (SAN), a styrene block copolymer (SBC) and / or a Tyrol maleic anhydride (SMA) on the one hand and thermoplastic polyurethane (TPU) on the other hand, the mixing ratio being between 99: 1 and 1:99, preferably between 50:50 and 3:97.
    [7]
    7. Sports device, in particular ski, snowboard or water sports device, with a surface film (1) according to one of claims 1 to 6, which covers a surface of the sports device at least in some areas.
    [8]
    8. Sports device according to claim 7 with a surface film according to claim 2, characterized in that the surface film (1) so on the sports device
    8/13
    81628 32 / eh that the first layer (5) lies between the sports equipment and the second layer (4).
    Innsbruck, May 2, 2017
    [9]
    9/13 πια. λ
    Isosport composite components company m.b.H.
    81628
    [10]
    10/13 Austrian
    Patent Office
    类似技术:
    公开号 | 公开日 | 专利标题
    DE60011054T2|2005-04-07|SHINY METALLIZED COMPOSITE FILM
    EP1060209B1|2004-06-02|Method for producing surface-hardened pmma films which are highly glossy on both sides, free of gel bodies and can be manipulated in the "film-insert-moulding" method
    DE102008005782B4|2012-05-31|Polyurethane composite material and process for its production
    DE69734572T2|2006-08-10|ACRYLIC FOIL AND MOLDED BODIES MANUFACTURED THEREFROM
    DE69909918T2|2004-04-15|SHAPED ITEM AND SURFACE COVER FOR THIS
    EP0283861B1|1992-10-07|Adhesive decorative polycarbonate film
    EP2709843B1|2017-04-19|Multilayer composites having improved physical properties
    AT519950B1|2019-02-15|Surface film for a sports equipment
    DE2110847C3|1981-01-29|Thermoformable, sheet-like laminate
    EP0759351B1|1999-03-31|Method and apparatus for manufacturing two- or more coloured dashboard foils or dashboards made therefrom
    DE4218644A1|1992-12-10|INTERIOR FINISH SURFACE MATERIAL FOR AUTOMOBILES
    DE112013003103B4|2021-09-30|Plastic sheet and veneer sheet using the same and vehicle interior panel
    DE3722472A1|1989-01-19|FILM AND METHOD FOR THE PRODUCTION THEREOF
    DE69923327T3|2012-08-23|ACRYLATIC MATERIAL
    EP1319502A1|2003-06-18|Surface film to be laminated on a substrate
    AT511083B1|2012-09-15|SPORT UNIT WITH PLASTIC FOIL AND METHOD FOR PRODUCING THE SPORTS DEVICE
    EP1109860B1|2003-01-02|Asa moulding compounds for producing shaped parts
    EP3851172A1|2021-07-21|Plastic compound for surface protection film
    AT513280B1|2014-03-15|surface sheet
    DE102016005034A1|2017-10-26|Plastic composition, in particular for producing a surface film for skis
    WO1999004085A1|1999-01-28|Conductive patterned linoleum floor covering and method for producing the same
    EP0298208B1|1993-04-07|Film without butadiene and process for its preparation
    EP0693388A2|1996-01-24|Patterned multicoloured floor covering
    DE3447920C2|1993-05-27|
    AT7246U2|2004-12-27|SURFACE FILM FOR A SNOW UNIT
    同族专利:
    公开号 | 公开日
    AT519950B1|2019-02-15|
    EP3398664A1|2018-11-07|
    EP3398664B1|2022-03-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4211412A1|1992-04-04|1993-10-07|Benecke Ag J H|Single- or multilayer film for laminating to substrates - has thermoplastic base film contg. styrene]-acrylonitrile] copolymer and elastomer-modified thermoplastic|
    EP1445124A2|2003-01-16|2004-08-11|Isosport Verbundbauteile Gesellschaft Mbh|Decorative surface material with a lenticular foil for producing a decorative changing image and/or animation effect|
    DE102005043760A1|2005-09-13|2007-03-15|Marker Völkl International GmbH|Snow gliding board and method for its production|
    FR2700273B1|1993-01-12|1995-03-31|Salomon Sa|Method of decorating a ski top.|
    US7097908B2|2003-10-20|2006-08-29|Arkema|Polyamide/polyurethane multilayer structures for decorated articles|
    DE102008002599A1|2008-06-24|2009-12-31|Evonik Degussa Gmbh|Component with cover layer of a PA613 molding compound|AT523173B1|2020-01-15|2021-06-15|Isosport Verbundbauteile Ges M B H|Plastic mixture and surface film|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50355/2017A|AT519950B1|2017-05-02|2017-05-02|Surface film for a sports equipment|ATA50355/2017A| AT519950B1|2017-05-02|2017-05-02|Surface film for a sports equipment|
    EP18170363.8A| EP3398664B1|2017-05-02|2018-05-02|Surface film for a sporting device|
    [返回顶部]