EP1827622B1 - Revetement de glissement pour appareils de sports d'hiver - Google Patents

Revetement de glissement pour appareils de sports d'hiver Download PDF

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EP1827622B1
EP1827622B1 EP05819940A EP05819940A EP1827622B1 EP 1827622 B1 EP1827622 B1 EP 1827622B1 EP 05819940 A EP05819940 A EP 05819940A EP 05819940 A EP05819940 A EP 05819940A EP 1827622 B1 EP1827622 B1 EP 1827622B1
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EP
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Prior art keywords
copolymer
sliding coating
mpa
coating according
building blocks
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EP05819940A
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German (de)
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EP1827622A1 (fr
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Florian Felix
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Individual
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Individual
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Priority claimed from DE200410062252 external-priority patent/DE102004062252B3/de
Priority claimed from DE200510003917 external-priority patent/DE102005003917A1/de
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Priority to SI200530286T priority Critical patent/SI1827622T1/sl
Publication of EP1827622A1 publication Critical patent/EP1827622A1/fr
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof
    • A63C5/056—Materials for the running sole

Definitions

  • the invention relates to a sliding coating for winter sports equipment, especially for skis and snowboards.
  • the sliding coating can be extruded from a polymer mass in a simple manner.
  • the invention further relates to the coated with the sliding coating winter sports equipment.
  • winter sports equipment used for gliding e.g. are determined on snow, especially skis and snowboards, is determined to a large extent by their sliding properties. Therefore, such winter sports equipment usually have a lubricious coating, which should improve the sliding properties of the equipment on snow.
  • a slide coating consists essentially of a film which is glued to the skis or snowboards with the aid of suitable adhesives.
  • Such a lubricious coating should be as hydrophobic as possible to ensure a good slip.
  • the lubricity of skis is also improved by the use of special waxes, which is usually still required in skis provided with a slide coating.
  • waxes are used by various additives for the different temperatures and Are designed at lower snow temperatures a harder surface is desired and at higher snow temperatures a softer surface.
  • waxes are also available which, in addition to the setting of the surface hardness, form nanostructures which produce a lotus effect and thus ensure a completely non-wettable surface.
  • the use of waxes is complicated and the proper selection of a wax is difficult. In practice, several waxes must be kept in stock to be able to react appropriately to different snow conditions.
  • the WO 2004/069352 discloses slip liners for winter sports equipment constructed on a blend of two different copolymers wherein one of the copolymers is a copolymer of propylene and at least one other olefin consisting of at least 50% backbone building blocks derived from propylene monomers, based on the total number of Scaffold building blocks, and the other copolymer is a copolymer of ethylene and at least one further olefin containing at least 50% of scaffold building blocks derived from ethylene, based on the total number of scaffold building blocks.
  • the in the WO 2004/069352 described Gleitbeläge or winter sports equipment having these sliding coatings already have excellent properties, especially with regard to their lubricity.
  • the expert in the production of corresponding winter sports equipment with sliding coatings is very limited in terms of the copolymer system to be used.
  • sliding linings for winter sports equipment not in the WO 2004/069352 but comprising at least one copolymer (I) which comprises 10% or more of building blocks derived from propylene monomers, based on the total number of scaffold building blocks and 1 wt .-% or more of scaffold building blocks, of a derive from other olefin, also based on the total number of Scaffold building blocks in the copolymer have excellent sliding properties similar to those of the WO 2004/069352 comparable or even superior.
  • the copolymer (I) preferably has a flexural strength in the range of 200 MPa - 3000 MPa, preferably 500 MPa - 3000 MPa.
  • Preferred lower limits of the flexural strength are 700 MPa and 900 MPa
  • preferred upper limits of the flexural strength of the copolymer (I) are 2000 MPa and 1500 MPa. This results in particularly preferred ranges for the flexural strength of the copolymer (I) of 700-2000 MPa, more preferably 800-1500 MPa, for example about 900 MPa, about 1000 MPa or about 1100 MPa.
  • Copolymer (II) is also a copolymer based on propylene, so that the sliding lining which is particularly preferred according to the invention comprises a mixture of two copolymers which have both units derived from propylene.
  • one of the two copolymers has a high flexural strength, a high softening temperature and a high Shore D hardness
  • the second propylene-based copolymer has a lower flexural strength, a lower softening temperature, and a lower Shore D hardness
  • a sliding covering for winter sports equipment which comprises at least one copolymer which comprises 10% of the scaffold building blocks derived from propene monomers and comprising at least 1% of scaffold building blocks derived from at least one further olefin and used as copolymer ( I) is called.
  • a sliding lining for a winter sports device is also provided, which contains at least one further copolymer (II) in addition to the copolymer (I).
  • the invention also relates to winter sports equipment, in particular skis, which are equipped with such a sliding coating.
  • the sliding coating of the invention contains no copolymer containing 50% or more of scaffold building blocks which originate from ethylene monomers, based on the total number of scaffold building blocks.
  • Copolymer (I) is a copolymer of propylene and at least one other olefin.
  • Copolymer (I) preferably contains at least 10%, more preferably at least 30%, even more preferably at least 50%, of backbone building blocks derived from propylene monomers, based on the total number of backbone building blocks. However, these scaffold building blocks do not make up more than 99% of the copolymer, based on the total number of scaffold building blocks.
  • Copolymer (I) preferably has from 70 to 99%, more preferably from 75 to 98%, in particular from 80 to 95%, for example about 90%, scaffold building blocks derived from propylene monomers (in each case based on the total number of scaffold building blocks).
  • the copolymer (I) additionally contains scaffold building blocks which originate from at least one further olefin, in particular from ethylene or a C 4 -C 12 olefin.
  • the proportion of the further olefin (the other olefins) makes up the remainder of the copolymer (I) (to 100% of the scaffold building blocks), so that the copolymer (I) is preferably a propylene / ethylene copolymer or a copolymer of propylene with one or more C 4 -C 12 olefins or a copolymer of propylene, ethylene and one or more C 4 -C 12 olefins.
  • EPDM ethylene / propylene diene terpolymer
  • dienes such as cyclooctadiene, dicyclopentadiene and / or hexadiene. It is also possible that higher olefins or dienes are present in the copolymer (I).
  • the copolymer (I) When the copolymer (I) is used together with a copolymer (II), it is preferred that the copolymer (I) has a higher Vicat softening temperature, a higher flexural strength and a higher Shore D hardness than the copolymer (II).
  • the flexural strength of the copolymer (I) is preferably at least 50 MPa higher than the flexural strength of the copolymer (II), more preferably at least 100 MPa higher, more preferably at least 500 MPa higher, e.g. about 900 MPa or 1000 MPa or 1100 MPa higher than the flexural strength of the copolymer (II).
  • the Vicat softening temperature VST / A / 50 of the copolymer (I) is more preferably at least 5 ° C, more preferably at least 20 ° C at least 50 ° C, eg, about 90 ° C or 95 ° C higher than the Vicat softening temperature VST / A / 50 of the copolymer (II).
  • the Shore D hardness of the copolymer (I) is preferably at least 5 units, more preferably at least 10 units, more preferably at least 20 units, e.g. about 30 or 35 units higher than the Shore D hardness of the copolymer (II).
  • the flexural strength of the copolymer (I) is preferably in the range of 200 MPa - 3000 MPa, preferably 500 MPa - 3000 MPa.
  • Preferred lower limits for flexural strength are 800 MPa and 1000 MPa.
  • Preferred upper limits for the flexural strength of the copolymer (I) are 2000 MPa and 1500 MPa. Therefore, preferred ranges of the flexural strength of the copolymer (I) are 800 MPa to 2,000 MPa, more preferably 900 MPa to 1,500 MPa, and most preferably, a value of about 1,000 MPa is most preferable.
  • the copolymer (I) has a Vicat softening temperature VST / A / 50 in the range from 80 ° C to 250 ° C.
  • Preferred lower limit values for Vicat softening temperature VST / A / 50 are 100 ° C and 130 ° C.
  • Preferred upper limit values for the Vicat softening temperature VST / A / 50 are 200 ° C and 170 ° C.
  • the most preferable ranges for the Vicat softening temperature VST / A / 50 of the copolymer (I) are from 100 ° C to 200 ° C, more preferably from 130 ° C to 170 ° C.
  • Most preferred is a Vicat softening temperature VST / A / 50 of about 150 ° C.
  • the Shore D hardness of the copolymer (I) is in the range of 50 to 90. Preferred lower limits for the Shore D hardness are 55 and 60, preferred upper limits for the Shore D hardness are 80 and 70. Thus, the most preferred range for the Shore D hardness of the copolymer (I) of 55 to 80, more preferably from 60 to 70. Most preferred is a copolymer (I) having a Shore D hardness of about 65.
  • copolymers (I) are commercially available. If the copolymer (I) is not used in admixture with another copolymer having units derived from propylene monomers, for example If the copolymer (I) is used in admixture with a copolymer (II) as defined below, the product Hostalen PP EPD60R (flexural strength ISO 178: 1050 MPa; Vicat softening temperature ISO 306 A / 50: 151 ° C; Shore D ISO 868: 64) from Basell.
  • Hostalen PP EPD60R flexible strength ISO 178: 1050 MPa; Vicat softening temperature ISO 306 A / 50: 151 ° C; Shore D ISO 868: 64
  • the copolymer (I) when used in admixture with the copolymer (II), the copolymer (I) preferably makes 1 to 99% by weight, more preferably 95 to 50% by weight, especially 95 to 70% by weight, eg about 90 wt .-% of the mixture of the copolymers (I) and (II).
  • the copolymer (II) is also a copolymer of propylene and at least one other olefin, but preferably exhibits lower flexural strength, softening temperature and Shore D hardness than the copolymer (I).
  • composition of the copolymer (II) can be made to the comments on copolymer (I), however, in the present invention particularly preferred embodiment in which the sliding coating for winter sports equipment, a mixture of copolymer (I) and copolymer (II) has particularly preferred the structure of the copolymer (II) and / or the content of comonomers in the copolymer (II) other than in the copolymer (I), whereby different parameters in bending strength, softening temperature and Shore D hardness are obtained.
  • the copolymer (II) is a copolymer of propylene and at least one other olefin, in particular of ethylene and / or a C 4 -C 12 olefin.
  • the copolymer (II) is preferably a copolymer of propylene and ethylene or a copolymer of propylene and one or more C 4 -C 12 olefins or a copolymer of propylene, ethylene and one or more C 4 -C 12- olefins.
  • the copolymer (11) may also contain dienes such as cycloacetadiene, dicycloapentadiene and / or hexadiene. Higher olefins or dienes may also be present in the copolymer (II).
  • the flexural strength of the copolymer (II) is in the range of 1 MPa to 500 MPa.
  • Preferred lower limits for the flexural strength of the copolymer (II) are 10 MPa and 20 MPa, and preferred upper limits for the flexural strength of the copolymer (II) are 200 MPa and 100 MPa.
  • the flexural strength of the copolymer (II) is in the range of 10 MPa to 200 MPa, more preferably 20 MPa up to 100 MPa.
  • Particularly preferred is a copolymer (II) having a flexural strength of about 30 MPa.
  • the Vicat softening temperature VST / A / 50 of the copolymer (II) is in the range of 1 ° C to 80 ° C.
  • Preferred lower limits of the Vicat softening temperature VST / A / 50 of the copolymer (II) are 30 ° C and 40 ° C, preferred upper limits being 70 ° C and 60 ° C.
  • Particularly preferred ranges of the Vicat softening temperature VST / A / 50 for the copolymer (II) thus result to 30 to 70 ° C and 40 to 60 ° C.
  • a copolymer (II) having a Vicat softening temperature of about 55 ° C is preferred.
  • the Shore D hardness of the copolymer (II) is in the range of 1 to 50.
  • Preferred lower limits of the Shore D hardness are 20 and 25, preferred upper limits of the Shore D hardness are 35 and 40.
  • Particularly preferred ranges for the Shore D hardness of the copolymer (II) are therefore from 20 to 40 and from 25 to 35.
  • a copolymer having a Shore D hardness of about 30 is preferred.
  • the preferred copolymers (II) which can be used according to the invention are commercially available, for example Adflex Q 100 F (flexural strength ISO 178: 80 MPa, Vicat softening temperature ISO 306 A / 50: 55 ° C., Shore D ISO 868: 30) from Basell.
  • Adflex Q 100 F flexural strength ISO 178: 80 MPa, Vicat softening temperature ISO 306 A / 50: 55 ° C., Shore D ISO 868: 30
  • the copolymer (II) makes preferably 1 to 90% by weight, more preferably 5 to 50% by weight, more preferably 5 to 30% by weight, for example, about 10% by weight of the mixture of the copolymers (I) and (II).
  • Both the copolymer (I) and the copolymer (II) may be random copolymers.
  • at least the copolymer (I) is preferably a block copolymer in which the comonomers have been polymerized onto a polypropylene block.
  • copolymer (11) may be a copolymer in which blocks of polypropylene have been bonded together via the comonomers. The properties of the copolymer may then be e.g. be varied over the block length of the polypropylene.
  • copolymers as used in this specification includes not only copolymers of two monomer units but also copolymers consisting of more than two different monomer units, especially three different ones Monomer units or four different monomer units are constructed.
  • copolymers as used herein thus includes in particular terpolymers.
  • olefin includes compounds having one or more double bonds, preferably one or two double bonds (dienes), which preferably contain not more than 16, more preferably not more than 10, carbon atoms and which are branched or can be unbranched.
  • the mixture of the copolymer (I) and the copolymer (II) has a flexural strength in the range of 200 MPa - 3000 MPa, preferably 500 MPa - 3000 MPa.
  • Preferred lower limits of the bending strength are 700 MPa and 900 MPa
  • preferred upper limits of the flexural strength of the polymer mixture are 2000 MPa and 1500 MPa. This results in particularly preferred ranges for the bending strength of the mixture of copolymer (I) and copolymer (II) from 700 to 2000 MPa, more preferably from 800 to 1500 MPa. It is particularly preferred that the mixture has a flexural strength of about 1000 MPa.
  • the Vicat softening temperature VST / A / 50 of the mixture of the two copolymers is preferably in the range of 80 ° C to 250 ° C.
  • Preferred lower limits for the Vicat softening temperature VST / A / 50 are 100 ° C and 110 ° C, preferred upper limits are 200 ° C and 170 ° C.
  • Particularly preferred ranges of the Vicat softening temperature VST / A / 50 of the mixture of the two copolymers are therefore 100 to 200 ° C, more preferably 110 to 150 ° C, e.g. 130 ° C.
  • the Shore D hardness of the mixture of the two copolymers in the range of 50 to 90.
  • Preferred lower limits for the Shore D hardness are 55 and 60, preferred upper limits at 80 and 70. This results in particularly preferred ranges for the Shore D.
  • Hardness of the mixture of the two copolymers from 55 to 80 and 60 to 70.
  • Particularly preferred is a copolymer mixture having a Shore D hardness of about 67.
  • copolymers used according to the invention are commercially available or can be prepared by a person skilled in the art on the basis of a few routine experiments. Overall, the bending strength, the Shore D hardness and the Vicat softening temperature can be reduced, especially in copolymers with a polypropylene block, by reducing the content of propylene in the copolymer. Therefore, in the embodiment of the invention, in US Pat Mixture of copolymer (I) and copolymer (II) are used, the copolymers (I) usually have a higher content of propylene units than the copolymers (II). How to make copolymers with the appropriate parameters, but belongs to the general expertise of a polymer chemist.
  • corresponding copolymers are also commercially available, for example, from Basell and Exxon, as well as Borealis.
  • a softening temperature is always understood to mean a Vicat softening temperature which has been determined in accordance with the specification ISO 306: 2004.
  • this ISO standard there are four methods for determining the Vicat softening temperature of thermoplastic materials, namely a method A50 using a force of 10 N and a heating rate of 50 ° C per hour, a method B50 in which a Force of 50 N and a heating rate of 50 ° C per hour, a method A120 using a force of 10 N and a heating rate of 120 ° C per hour and a method B120 using a force of 50 N and a heating rate of 120 ° C is used.
  • all Vicat softening temperatures were determined by Method A50, that is, using a force of 10 N and a heating rate of 50 ° C per hour.
  • Method A50 that is, using a force of 10 N and a heating rate of 50 ° C per hour.
  • the flexural strengths were determined according to ISO 178: 2001, that is, the bending strength of a 3 point bending load at 23 ° C. For details of the determination refer to the corresponding ISO standard.
  • the Shore hardness is determined according to ISO standard 868: 2003.
  • ISO standard 868: 2003 defines two methods for determining Shore hardness, Type A, for softer materials and Type B, which is intended for harder materials.
  • the Shore hardness is measured with a test probe. The measure of the hardness is the penetration depth, wherein the force is applied by a calibrated spring. It is measured for 3 seconds at room temperature (23 ° C).
  • the copolymer or the copolymer mixture for the production of the sliding coating according to the invention still one or more known per se, suitable for polypropylene lubricants.
  • lubricants are present, they are preferably in an amount of from 0.1 to 30% by weight or from 5 to 30% by weight, more preferably in an amount of from 0.5 to 10% by weight or from 1 to 10 wt .-%, for example in an amount of about 1% by weight or about 3% by weight, based on the total weight of the copolymer (I) or, optionally, the mixture of copolymer (I) and copolymer (II).
  • a lubricant is used which is a conventional hydrophobic lubricant e.g.
  • a lubricant based on high temperature stable primary or secondary fatty acids, such as primary fatty acid amines, or carboxylic acid esters.
  • a mixture of a lubricant based on high-temperature-stable primary fatty acids with one or more carboxylic acid esters.
  • Common commercial products are the products Hecoslip 103 PO and Hecoslip 114 PP from Hecoplast GmbH (Iserlohn, Germany).
  • a mixture of a high-temperature-stable primary fatty acid and a carboxylic acid ester in a ratio of about 1: 2 is used.
  • the sliding coatings according to the invention may also contain customary antistatic agents, in particular the antistatic additives known for polypropylene, such as carboxylic acid esters.
  • antistatics are preferably in an amount of from 0.1 to 30% by weight or 5 to 30% by weight, more preferably from 0.5 to 10% by weight, for example, in an amount of about 1 wt .-%, based on the total weight of the copolymer I or, optionally, the mixture of copolymer (I) and copolymer (II) present.
  • the sliding linings according to the invention may contain customary nucleating agents, in particular nucleating agents customary for polypropylene.
  • Nucleating agents are nucleating agents such as sodium benzoate, which were first introduced in the 1960's and are available, for example, from Henkel KGaA (Dusseldorf, Germany) or Hecoplast GmbH (Iserlohn, Germany).
  • organic nucleating agents such as sugar-based nucleating agents, like sorbitol acetals.
  • a preferred commercial product is the product Heconuk 484PP from Hecoplast.
  • Such nucleating agents are preferably in an amount of from 0.1 to 30 wt%, more preferably from 0.5 to 10 wt%, for example, in an amount of about 2 wt% on the weight of the copolymer (I) present.
  • the sliding coatings according to the invention comprise both at least one nucleating agent as defined above and at least one lubricant as defined above, in each case in the preferred amounts specified above. It is also preferred that the lubricant is bound partly or wholly to the nucleating agent. If a nucleating agent is present, preference is given to using primary fatty acids and / or secondary fatty acids as lubricant, preferably in a proportion of 1 to 90% by weight, based on the total weight of the nucleating agent, more preferably in a proportion of 1 to 10% by weight on the total weight of the nucleating agent, in particular in a proportion of about 7 wt .-% based on the total weight of the nucleating agent.
  • the sliding coating contains both a nucleating agent and a lubricant which is optionally or (preferably) partially bonded to the nucleating agent, a mixture of a high-temperature-stable primary fatty acid and a carboxylic ester in a ratio of about 1:10 used.
  • additives for improving the hydrophobic and antistatic properties or the weathering resistance and the scratch resistance in particular silicon compounds, in particular inorganic silicon compounds such as silica, maleic anhydride, carbon black and fluorine or fluorinated hydrocarbons ,
  • pigments such as TiO 2 are also present.
  • the most suitable amounts of such additives can be readily determined by routine experimentation, and any additive present is preferably present in an amount of from 0.05 to 3% by weight, more preferably from 0.1 to 2% by weight in each case based on the weight of the copolymer (I) or of the mixture of copolymer (I) and copolymer (II).
  • Particularly preferred are sliding linings according to the invention, the one Lubricating agent, a nucleating agent, a silicon compound and maleic anhydride.
  • the silicon compound is particularly preferably hydrophobic, pyrogenic silica which is present in the form of nanoparticles.
  • the nanoparticles preferably have a BET surface area (DIN 66131) in the range from 80 to 300 m 2 / g, preferably in the range from 110 to 260 m 2 / g, for example 160 m 2 / g ⁇ 25 m 2 / g.
  • BET surface area DIN 66131
  • Such products are available, for example, under the name Aerosil from Degussa. Particularly preferred according to the invention is the product Aerosil R8200.
  • the maleic anhydride serves as a hydrophobizing agent, but also as a coupling agent for the nanoparticles.
  • the maleic anhydride is also commercially available, in the examples, the product was Exxelor Exxon Mobil used, but other maleic anhydrides can of course be used.
  • customary light stabilizers in particular light protection systems for polyolefins and particularly preferred light protection systems for polypropylene.
  • sunscreen systems are known in the art.
  • these are systems based on sterically hindered amines, and the HALS light protection concentrate Hecostab 372 from Hecoplast can be mentioned as a special product.
  • ski is intended for high performance applications, such as racing
  • special impregnations can be applied in the usual way, which can preferably bond to polypropylene and in the short term improve the hydrophobic and antistatic properties and additionally strengthen the surface hardness.
  • a mixture of fluorinated isopropanol and water can be mentioned.
  • copolymer (I) optionally in admixture with copolymer (II) and optionally further additives as defined above, can be processed by a simple extrusion process into a film, which is particularly outstanding as a sliding coating for winter sports equipment and in particular for Skis and snowboards are suitable.
  • the coating changes its hardness in a temperature range from + 20 to -20 ° C such that it becomes harder with decreasing temperature, an effect which heretofore has been achieved only by the use of waxes.
  • the sliding liners of the present invention exhibit excellent notched impact strength and strength comparable to that of polyethylene based liners, at least as far as the requirements placed on winter sports equipment are concerned.
  • the copolymers or copolymer mixtures for the production of the sliding coating according to the invention can be processed in the usual way.
  • a particular advantage of the copolymers or copolymer mixtures is that they can be formed into sliding coatings by conventional extrusion processes, for example by flat film extrusion processes.
  • the press-sintering processes required for other polymers such as PE-UHMW are not necessary according to the invention.
  • the processing can therefore according to the invention in conventional single and twin screw extruders, especially in three-zone screw extruders with mixing part, preferably in meshing three-zone twin-screw extruder with mixing part done.
  • the extrusion tools are known to those skilled in the art, and common beam or hanger tools may be mentioned as examples.
  • Conventional calendering or smoothing roller systems can be used for calibration, in particular so-called chill-roll systems.
  • Another advantage of the invention results from the fact that the propylene copolymer has a so-called "memory effect" which occurs when the surface structure is still applied below the molecular freezing limit. Due to the memory effect, the surface structure recovers itself if it has been slightly damaged by mechanical effects.
  • the surface structure is applied to the sliding surface in the same way as is known in skis, for example by the use of structured Smoothing rolls. As mentioned above, it is preferable that the surface structure is applied to the sliding layer before the molecular freezing point.
  • the sliding coating according to the invention generally has a thickness of 0.1 to 10 mm, preferably 0.5 to 5 mm, in particular of about 1 mm.
  • the sliding lining according to the invention can be attached to winter sports equipment, in particular skis or snowboards, in the usual way.
  • suitable adhesives e.g. the common hot melt adhesives or, with a hot melt adhesive plastic, e.g. a polyamide resin or an ethylene-vinyl acetate copolymer or its modifications to the winter sports equipment.
  • the sliding coating can also be connected to the device in other known manner.
  • the winter sports equipment, especially the ski or snowboard may be subjected to conventional pretreatment such as brushing, sandblasting, degreasing, etching or pickling, and the slip coating may be subjected to conventional surface treatment such as e.g. a corona treatment, flame treatment, primer treatment or ozone shower are subjected.
  • the films were applied to a ski and snowboard using conventional adhesive in a known manner. Subsequently, these winter sports equipment were driven in wet snow, cold and dry snow, and artificial snow sample to perform a qualitative slip test in practice.
  • the reference floor coverings were finished with the same sanding pattern on the same stone grinding machine mentioned above the test ends, and professional, as usual for racing use prepared with appropriate waxes for the respective snow temperature.
  • Example 1 the inventive coating of Example 1 described above is referred to as FX SmartBase NANO, that of Example 2 as FX SmartBase NANO B.
  • Slope angle ⁇ of snow defined on an inclined plane should slide down a slide with the covering to be tested as a running surface.
  • the carriage is initially held by a magnet. If this triggers, the time starts and the slide passes through three light barriers (L1, L2, L3).
  • the first time t1 is taken on the first distance x1 (5.5 cm) from the magnet to L1. Then at the second distance x2 (50cm) to the light barrier L2 the second time t2 and finally at the third distance x3 (50cm) to the light barrier L3 the third time t3.
  • the magnet was an IBS electric magnet with 24V input voltage.
  • the photoelectric sensors used by IDEC were infrared photocells with a range of 80 cm and a reaction time of 1 ms.
  • the wax Eclipse EC1 High Fluor + 8 ° ... 3 ° C from Star SkiWax was used at a snow temperature of -2 ° C and an air temperature of + 2 ° C.
  • the wax Eclipse EC2 High Fluor 0 ° ... -10 ° C from Star SkiWax was used at a snow temperature of -6 ° C and an air temperature of -4 ° C.
  • the wax was applied to the P-Tex samples with a TOKO wax iron. Thereafter, the samples were cooled at room temperature for two hours. The wax was peeled off with a stripper from TOKO. Afterwards the sanding structure was brushed out with a TOKO structure brush.
  • the FX SmartBase NANO - flooring and the NANO B were not waxed.
  • the pads were mounted on the slide with double sided tape and screw connections.
  • the magnet was triggered and the measurements at the light barriers were made.

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  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Lubricants (AREA)
  • Physical Vapour Deposition (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Bathtub Accessories (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Claims (22)

  1. Revêtement de glissement pour appareil de sports d'hiver, comprenant un copolymère (I), qui présente 10 % ou plus de composants structurels issus de monomères de propylène, par rapport au nombre total des composants structurels du copolymère (I) et 1 % ou plus de composants structurels issus d'une autre oléfine, par rapport au nombre total des composants structurels du copolymère (I), le revêtement de glissement ne présentant pas de copolymère comprenant 50 % de composants structurels ou plus issus de monomères d'éthylène, par rapport au poids total des composants structurels du copolymère.
  2. Revêtement de glissement selon la revendication 1, caractérisé en ce que le revêtement de glissement ne présente, en dehors du copolymère (I), aucun autre copolymère contenant des composants structurels issus du propylène.
  3. Revêtement de glissement selon la revendication 1, comprenant un mélange constitué d'un copolymère (I) et d'un copolymère (II), dans lequel le copolymère (I) et le copolymère (II) sont des copolymères de propylène et d'au moins une autre oléfine, et le copolymère (I) est tel que défini dans la revendication 1, et dans lequel la résistance à la flexion du copolymère (I) est supérieure d'au moins 50 MPas à la résistance à la flexion du copolymère (II), la température de ramollissement Vicat du copolymère (I) est supérieure d'au moins 5 °C à la température de ramollissement Vicat du copolymère (II) et la dureté Shore D du copolymère (I) se situe au moins 5 unités au-dessus de la dureté Shore D du copolymère (II).
  4. Revêtement de glissement selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le copolymère (I) présente une résistance à la flexion dans la plage de 200 MPas à 3000 MPas, une température de ramollissement Vicat VST/A/50 dans la plage de 80 °C à 250 °C et une dureté Shore D dans la plage de 50 à 90, et le copolymère (II), s'il est présent, est un copolymère de propylène et d'au moins une autre oléfine, qui présente une résistance à la flexion dans la plage de 1 MPa à 500 MPas, une température de ramollissement Vicat VST/A/50 dans la plage de 1 °C à 80°C et une dureté Shore D dans la plage de 1 à 50.
  5. Revêtement de glissement selon la revendication 4, caractérisé en ce que le copolymère (I) possède une résistance à la flexion dans la plage de 500 MPas à 3000 MPas.
  6. Revêtement de glissement selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le copolymère (II) est présent en quantité de 5 à 50 % en poids par rapport au poids total du copolymère (I) et du copolymère (II).
  7. Revêtement de glissement selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le revêtement de glissement comprend en outre encore un ou plusieurs lubrifiants.
  8. Revêtement de glissement selon la revendication 7, caractérisé en ce que le ou les lubrifiants est ou sont présents en quantité de 0,5 à 30 % en poids, par rapport au poids total du copolymère (I) ou éventuellement du mélange de copolymère (I) et de copolymère (II).
  9. Revêtement de glissement selon la revendication 7 ou 8, caractérisé en ce qu'il contient un lubrifiant choisi parmi un acide gras primaire ou secondaire résistant aux hautes températures, un ester d'acide carboxylique et leurs mélanges.
  10. Revêtement de glissement selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le revêtement de glissement comprend en outre encore un agent de nucléation.
  11. Revêtement de glissement selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le revêtement de glissement contient encore un ou plusieurs autres additifs, choisis parmi les additifs antistatiques, les additifs destinés à améliorer les propriétés hydrophobes, les additifs destinés à améliorer la résistance aux intempéries, les additifs destinés à améliorer la résistance aux rayures et les pigments.
  12. Revêtement de glissement selon la revendication 11, caractérisé en ce que le mélange contient un composé de silicium et/ou de l'anhydride d'acide maléique.
  13. Revêtement de glissement selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le copolymère (I) est un copolymère de propylène/éthylène ou un terpolymère EPDM.
  14. Revêtement de glissement selon la revendication 13, caractérisé en ce que le copolymère (I) est un copolymère de propylène/éthylène, comprenant 70 à 99 % de composants structurels issus de monomères de propylène, et 1 à 30 % de composants structurels issus de monomères d'éthylène, respectivement par rapport au nombre total des composants structurels.
  15. Revêtement de glissement selon l'une quelconque des revendications 3 à 14, caractérisé en ce que le copolymère (II) est un copolymère constitué de propylène et d'une oléfine supérieure ayant 4 à 10 atomes de carbone ou un terpolymère constitué de propylène, d'éthylène et d'une oléfine ayant 4 à 10 atomes de carbone.
  16. Revêtement de glissement selon la revendication 15, caractérisé en ce que l'oléfine ayant 4 à 10 atomes de carbone est un octène.
  17. Revêtement de glissement selon l'une quelconque des revendications 3 à 16, caractérisé en ce que la résistance à la flexion du copolymère (I) est supérieure d'au moins 500 MPas à la résistance à la flexion du copolymère (II), la température de ramollissement Vicat du copolymère (I) est supérieure d'au moins 50 °C à la température de ramollissement Vicat du copolymère (II) et la dureté Shore D du copolymère (I) est supérieure d'au moins 20 unités à la dureté Shore D du copolymère (II).
  18. Revêtement de glissement selon l'une quelconque des revendications 1 à 17, caractérisé en ce que le copolymère (I) présente une résistance à la flexion dans la plage de 800 à 2000 MPas, une température de ramollissement Vicat VST/A/50 dans la plage de 100 °C à 200 °C et une dureté Shore D dans la plage de 55 à 80 et le copolymère (II), s'il est présent, a une résistance à la flexion dans la plage de 10 MPas à 200 MPas, une température de ramollissement Vicat VST/A/50 dans la plage de 30 °C à 70 °C et une dureté Shore D dans la plage de 20 à 40.
  19. Revêtement de glissement selon l'une quelconque des revendications 1 à 18, caractérisé en ce qu'il présente une structure superficielle qui a été appliquée avant le point de solidification moléculaire.
  20. Procédé de fabrication d'un revêtement de glissement selon l'une quelconque des revendications 1 à 19, caractérisé en ce qu'un mélange constitué du copolymère (I), éventuellement de copolymère (II) et éventuellement d'autres composants tels que définis dans l'une quelconque des revendications 1 à 17, est extrudé, par un procédé d'extrusion à plat, sous la forme d'une feuille sur laquelle on applique éventuellement ensuite une structure superficielle avant le point de solidification moléculaire.
  21. Appareil de sports d'hiver, caractérisé en ce qu'il présente un revêtement de glissement selon l'une quelconque des revendications 1 à 19.
  22. Appareil de sports d'hiver selon la revendication 21, caractérisé en ce qu'il s'agit d'un ski ou d'un snowboard.
EP05819940A 2004-12-23 2005-12-21 Revetement de glissement pour appareils de sports d'hiver Not-in-force EP1827622B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200530286T SI1827622T1 (sl) 2004-12-23 2005-12-21 Drsna obloga za zimskošportne naprave

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200410062252 DE102004062252B3 (de) 2004-12-23 2004-12-23 Gleitbelag für Wintersportgeräte
DE200510003917 DE102005003917A1 (de) 2005-01-27 2005-01-27 Gleitbelag für Wintersportgeräte
PCT/EP2005/013797 WO2006069706A1 (fr) 2004-12-23 2005-12-21 Revetement de glissement pour appareils de sports d'hiver

Publications (2)

Publication Number Publication Date
EP1827622A1 EP1827622A1 (fr) 2007-09-05
EP1827622B1 true EP1827622B1 (fr) 2008-05-14

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EP05819940A Not-in-force EP1827622B1 (fr) 2004-12-23 2005-12-21 Revetement de glissement pour appareils de sports d'hiver

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Country Link
US (1) US8168715B2 (fr)
EP (1) EP1827622B1 (fr)
JP (1) JP2008525068A (fr)
AT (1) ATE395115T1 (fr)
DE (1) DE502005004155D1 (fr)
ES (1) ES2306270T3 (fr)
SI (1) SI1827622T1 (fr)
WO (1) WO2006069706A1 (fr)

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US7631883B2 (en) * 2006-05-12 2009-12-15 Wham-O, Inc. Strengthened slider and method of making the same
CH702663A2 (de) * 2010-02-05 2011-08-15 Zai Ag Schneegleitbrett.
US8414343B2 (en) 2010-08-06 2013-04-09 Red Oaks Development, LLC Techniques to discharge static electricity in water sliders
JP2012111001A (ja) * 2010-11-25 2012-06-14 Nikon Corp ワークキャリア及び該ワークキャリアを備えた研磨装置
WO2014024877A1 (fr) * 2012-08-07 2014-02-13 日本軽金属株式会社 Corps lié d'aluminium et résine, ainsi que procédé de fabrication de celui-ci
US11918142B2 (en) * 2021-04-02 2024-03-05 Ascent Technology, LLC Artificial gravity heating device

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AT325477B (de) * 1974-02-22 1975-10-27 Kuntara Wilhelm Dr Laufsohle aus thermoplastischem kunststoff für skier od.dgl. und ski od.dgl. mit einer solchen laufsohle
US4340641A (en) 1979-10-05 1982-07-20 Mobil Oil Corporation Heat sealable packaging film comprising propylene polymer substrate and a surface layer blend of ethylene copolymer and propylene copolymer
FR2626778B1 (fr) * 1988-02-09 1990-07-13 Atochem Nouvelles semelles de ski, leur procede de fabrication et skis equipes de ces semelles
FR2663339A1 (fr) * 1990-06-14 1991-12-20 Atochem Films a base d'elastomere(s) thermoplastiques a base de polyamide et de copolyolefine(s) modifiees aptes au collage, materiaux composites obtenus a partir des dits films.
JPH07251462A (ja) * 1994-01-31 1995-10-03 Somar Corp 高分子シート、高分子シートの製造方法及び滑走材
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DE10305088B4 (de) * 2003-02-07 2005-03-24 Xaver Hoffmann Wintersportgeräte mit Gleitbelag

Also Published As

Publication number Publication date
ES2306270T3 (es) 2008-11-01
JP2008525068A (ja) 2008-07-17
US8168715B2 (en) 2012-05-01
US20080088099A1 (en) 2008-04-17
DE502005004155D1 (de) 2008-06-26
WO2006069706A1 (fr) 2006-07-06
ATE395115T1 (de) 2008-05-15
SI1827622T1 (sl) 2008-08-31
EP1827622A1 (fr) 2007-09-05

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