EP0227557B1 - Polyvalent, anti-back-sliding sole for a cross-country ski - Google Patents
Polyvalent, anti-back-sliding sole for a cross-country ski Download PDFInfo
- Publication number
- EP0227557B1 EP0227557B1 EP86420242A EP86420242A EP0227557B1 EP 0227557 B1 EP0227557 B1 EP 0227557B1 EP 86420242 A EP86420242 A EP 86420242A EP 86420242 A EP86420242 A EP 86420242A EP 0227557 B1 EP0227557 B1 EP 0227557B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sole
- isocyanate
- sole according
- snow
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S521/905—Hydrophilic or hydrophobic cellular product
Definitions
- the present invention relates to a versatile anti-kickback sole for cross-country skiing and more particularly the zone or zones of the sole to which the anti-kickback function is attached.
- Document FR-A-2 025 877 relates to an alpine ski sole made of semi-rigid polyurethane having, in addition to good sliding qualities, qualities of mechanical resistance and damping.
- Document DE-A-2 726 726 relates to a polyurethane alpine ski sole in which the qualities of gliding and mechanical resistance are also sought.
- Certain anti-shrink soles finally require, on certain snow, the local application of non-stick products (which it is necessary to renew) and which are intended to prevent the sticking of snow.
- the patent holder sought to develop an anti-kickback sole for cross-country skiing which meets all the requirements mentioned above without it being necessary to apply sporadically specific products to it, and which can exhibit versatility on any quality of snow.
- the patent holder first studied the sliding and retaining mechanism of the soles for cross-country skiing, essentially conditioned by the multiphase nature of snow and discovered that three factors concerning the sole were involved in this mechanism: hydrophobia, behavior rheological and surface topography.
- Hydrophobia appears to be particularly important in the lightening and sliding phases; in the lightening phase, it avoids the adhesion of the snow which risks causing the phenomenon known as "kick" or icing; moreover hydrophobicity favors sliding, whatever the nature of the snow and the mechanism involved.
- the surface of the sole is essentially stressed in compression, while, in the gliding phase, it is subjected to a shearing action.
- the pulse phase is much shorter than the sliding phase 0.1 to 0.2 seconds on the one hand and 0.5 to 1.5 seconds on the other.
- the object of the invention is to take advantage of the visco-elastic properties of a material constituting the sole to obtain an anchoring mechanism during the impulse phase, by reducing the elasticity in compression, while retaining high shear elasticity during the sliding phase.
- the patent holder determined what characteristics were required of a material suitable for the production of cross-country ski soles.
- this sole is essentially constituted, in the zone or zones to which the anti-kickback function is attached, by a material chosen from polyurethanes obtained by polycondensation of polyols having a hydrocarbon chain having 8 to 20 carbon atoms between hydrophilic functional groups and di-isocyanates chosen from methane-diphenyl-di-isocyanate (MDI), toluene-di-isocyanate (TDI) and hexamethyl-di- isocyanate (HDI) used alone or as a mixture, the elastic modulus of this material being between 5.106 Pa (Newton / m2) and 108 Pa for deformation rates corresponding to frequencies between 0.1 and 10 Hz ( s ⁇ 1) and between 108 and 109 Pa for deformation rates corresponding to frequencies between 1 and 100 Hz, the topography or roughness of the sole being further compatible with the particle size of the different types of snow, the distribution of heights profile allowing snow grains to penetrate the material during propulsion.
- a material
- the amount of di-isocyanate used in the polycondensation reaction is greater than the stoichiometric amount.
- the amount of di-isocyanate is preferably 10 to 30% greater than the stoichiometric amount.
- the material compositions according to the invention lend themselves well to the incorporation of conventional fillers such as mineral fillers and fibrous polymers.
- the material according to the invention has a closed porous structure.
- the material according to the invention can be used according to any suitable geometrical arrangement of the sole. It can be used alone or combined with one or more materials of the same type.
- Crosslinking is carried out at 90 ° C for 48 hours, and using the material thus obtained, in a conventional manner, as part of the sole intended to ensure the anti-kickback function.
- the replacement of calcium carbonate by sodium aluminosilicate or talc leads to the production of a closed porous structure.
- the modulus of elasticity varies from 108 to 109 Pa; for low strain rates (restraint), this module is between 5.106 and 108 Pa.
Description
La présente invention concerne une semelle antirecul polyvalente pour ski de fond et plus spécialement la ou les zones de la semelle auxquelles est rattachée la fonction antirecul.The present invention relates to a versatile anti-kickback sole for cross-country skiing and more particularly the zone or zones of the sole to which the anti-kickback function is attached.
Il est déjà connu de réaliser des semelles de ski en polyuréthane.It is already known to make polyurethane ski soles.
Le document FR-A-2 025 877 concerne une semelle de ski alpin en polyuréthane semi-rigide possédant, outre de bonnes qualités de glisse, des qualités de résistance mécanique et d'amortissement.Document FR-A-2 025 877 relates to an alpine ski sole made of semi-rigid polyurethane having, in addition to good sliding qualities, qualities of mechanical resistance and damping.
Le document DE-A-2 726 726 concerne une semelle de ski alpin en polyuréthane dans laquelle sont également recherchées les qualités de glisse et de résistance mécanique.Document DE-A-2 726 726 relates to a polyurethane alpine ski sole in which the qualities of gliding and mechanical resistance are also sought.
On connaît les nombreux problèmes posés par la réalisation des semelles antirecul pour ski de fond qui doivent présenter de bonnes propriétés de glissement et ne pas coller à la neige quelles que soient les caractéristiques de cette dernière.We know the many problems posed by the realization of anti-rollback soles for cross-country skiing which must have good sliding properties and not stick to snow whatever the characteristics of the latter.
On a tout d'abord proposé de résoudre ces problèmes par l'emploi de farts spécifiques à chaque qualité de neige et nécessitant un renouvellement fréquent du fait de leur usure rapide.It was first proposed to solve these problems by the use of waxes specific to each quality of snow and requiring frequent renewal due to their rapid wear.
On a ensuite muni les semelles de reliefs appropriés (peluches, écailles...), ce qui ne conduit qu'à des performances moyennes ; ces semelles sont, en outre, bruyantes.We then fitted the soles with appropriate reliefs (lint, scales, etc.), which only leads to average performance; these soles are, moreover, noisy.
Certaines semelles antirecul nécessitent enfin, sur certaines neiges, l'application locale de produits anti-adhésifs (qu'il est nécessaire de renouveler) et qui sont destinés à empêcher le collage de la neige.Certain anti-shrink soles finally require, on certain snow, the local application of non-stick products (which it is necessary to renew) and which are intended to prevent the sticking of snow.
Le titulaire du brevet a cherché à mettre au point une semelle antirecul pour ski de fond qui satisfasse à toutes les exigences mentionnées ci-avant sans qu'il soit nécessaire de lui appliquer sporadiquement des produits spécifiques, et qui puisse présenter une polyvalence sur toute qualité de neige.The patent holder sought to develop an anti-kickback sole for cross-country skiing which meets all the requirements mentioned above without it being necessary to apply sporadically specific products to it, and which can exhibit versatility on any quality of snow.
On sait que le geste classique du pas alternatif se décompose essentiellement en trois phases correspondant à des sollicitations différentes de la semelle : en phase d'impulsion, le skieur prend appui sur la neige pour se propulser, en phase intermédiaire ou d'allègement, la pression sur la neige diminue fortement ; enfin, la dernière phase correspond au glissement du ski.We know that the classic gesture of the alternative step essentially breaks down into three phases corresponding to different stresses on the sole: in the impulse phase, the skier rests on the snow to propel himself, in the intermediate or lightening phase, the snow pressure decreases sharply; finally, the last phase corresponds to the sliding of the ski.
Le titulaire du brevet a tout d'abord étudié le mécanisme de glissement et de retenue des semelles pour ski de fond, essentiellement conditionné par la nature polyphasique de la neige et a découvert que trois facteurs concernant la semelle participaient à ce mécanisme : hydrophobie, comportement rhéologique et topographie de surface.The patent holder first studied the sliding and retaining mechanism of the soles for cross-country skiing, essentially conditioned by the multiphase nature of snow and discovered that three factors concerning the sole were involved in this mechanism: hydrophobia, behavior rheological and surface topography.
L'hydrophobie apparaît comme particulièrement importante dans les phases d'allègement et de glisse ; dans la phase d'allègement, elle évite l'adhésion de la neige qui risque de provoquer le phénomène dit de "bottage" ou de glaçage ; par ailleurs l'hydrophobie favorsie le glissement, quels que soient la nature de la neige et le mécanisme mis en jeu.Hydrophobia appears to be particularly important in the lightening and sliding phases; in the lightening phase, it avoids the adhesion of the snow which risks causing the phenomenon known as "kick" or icing; moreover hydrophobicity favors sliding, whatever the nature of the snow and the mechanism involved.
Le mécanisme du comportement rhéologique est essentiellement le suivant :
- 1) Pendant le glissement, la sollicitation de chaque grain de neige est suffisamment courte pour que le matériau ait un comportement essentiellement élastique. Le matériau est peu déforme et reste lisse et glissant ;
- 2) Pendant la prise d'appui propulsif, la sollicitation de chaque grain de neige est suffisamment longue pour que le matériau ait un comportement essentiellement visqueux. Les grains de neige en pénétrant dans le matériau permettent au skieur de prendre appui sur la neige ;
- 3) Lorsque cette sollicitation cesse, le matériau, grâce à sa mémoire élastique, reprend sa forme initiale. Le ski est donc prêt pour le pas suivant.
- 1) During sliding , the stress on each grain of snow is short enough for the material to have an essentially elastic behavior. The material is slightly deformed and remains smooth and slippery;
- 2) During the propelling support , the stress on each grain of snow is long enough for the material to have an essentially viscous behavior. The grains of snow entering the material allow the skier to rest on the snow;
- 3) When this stress ceases, the material, thanks to its elastic memory, returns to its initial shape. The ski is therefore ready for the next step.
Le titulaire du brevet, au cours des études qu'elle a effectuées sur le mécanisme de glissement et de retenue des semelles pour ski de fond, a confirmé qu'il existait un comportement tribologique différent suivant que la semelle était en phase d'impulsion ou en phase de glisse.The patent holder, during the studies she carried out on the sliding and retaining mechanism of the cross-country ski soles, confirmed that there was a different tribological behavior depending on whether the sole was in the impulse phase or in the sliding phase.
En effet, en phase d'impulsion impliquant le phénomène de retenue, la surface de la semelle est essentiellement sollicitée en compression, alors que, dans la phase de glisse, elle est soumise à une action de cisaillement.Indeed, in the impulse phase involving the phenomenon of restraint, the surface of the sole is essentially stressed in compression, while, in the gliding phase, it is subjected to a shearing action.
Par ailleurs, la phase d'impulsion est nettement plus courte que la phase de glisse 0,1 à 0,2 seconde d'une part et 0,5 à 1,5 seconde d'autre part.Furthermore, the pulse phase is much shorter than the sliding phase 0.1 to 0.2 seconds on the one hand and 0.5 to 1.5 seconds on the other.
Le but de l'invention est de mettre à profit les propriétés visco-élastiques d'un matériau constitutif de la semelle pour obtenir un mécanisme d'ancrage pendant la phase d'impulsion, par diminution de l'élasticité en compression, tout en conservant une élasticité en cisaillement élevée en phase de glisse.The object of the invention is to take advantage of the visco-elastic properties of a material constituting the sole to obtain an anchoring mechanism during the impulse phase, by reducing the elasticity in compression, while retaining high shear elasticity during the sliding phase.
Le titulaire du brevet a déterminé quelles étaient les caractéristiques à exiger d'un matériau adapté à la réalisation de semelles de ski de fond.The patent holder determined what characteristics were required of a material suitable for the production of cross-country ski soles.
Selon l'invention, cette semelle est essentiellement constituée, dans la ou les zones auxquelles est rattachée la fonction antirecul, par un matériau choisi parmi les polyuréthanes obtenus par polycondensation de polyols présentant une chaîne hydrocarbonée possédant de 8 à 20 atomes de carbone entre groupements fonctionnels hydrophiles et de di-isocyanates choisis parmi le méthane-diphényl-di-isocyanate (MDI), le toluène-di-isocyanate (TDI) et l'hexaméthyl-di-isocyanate (HDI) employés seuls ou en mélange, le module d'élasticité de ce matériau se situant entre 5.10⁶ Pa (Newton/m²) et 10⁸ Pa pour des vitesses de déformation correspondant à des fréquences comprises entre 0,1 et 10 Hz (s⁻¹ ) et entre 10⁸ et 10⁹ Pa pour des vitesses de déformation correspondant à des fréquences comprises entre 1 et 100 Hz, la topographie ou rugosité de la semelle étant en outre compatible avec la granulométrie des différents types de neige, la distribution des hauteurs de profil permettant la pénétration des grains de neige dans le matériau en période de propulsion.According to the invention, this sole is essentially constituted, in the zone or zones to which the anti-kickback function is attached, by a material chosen from polyurethanes obtained by polycondensation of polyols having a hydrocarbon chain having 8 to 20 carbon atoms between hydrophilic functional groups and di-isocyanates chosen from methane-diphenyl-di-isocyanate (MDI), toluene-di-isocyanate (TDI) and hexamethyl-di- isocyanate (HDI) used alone or as a mixture, the elastic modulus of this material being between 5.10⁶ Pa (Newton / m²) and 10⁸ Pa for deformation rates corresponding to frequencies between 0.1 and 10 Hz ( s⁻¹) and between 10⁸ and 10⁹ Pa for deformation rates corresponding to frequencies between 1 and 100 Hz, the topography or roughness of the sole being further compatible with the particle size of the different types of snow, the distribution of heights profile allowing snow grains to penetrate the material during propulsion.
Selon un mode de réalisation préféré de l'invention, la quantité de di-isocyanate utilisée dans la réaction de polycondensation est supérieure à la quantité stoéchiométrique.According to a preferred embodiment of the invention, the amount of di-isocyanate used in the polycondensation reaction is greater than the stoichiometric amount.
La quantité de di-isocyanate est, de préférence, de 10 à 30 % supérieure à la quantité stoéchiométrique.The amount of di-isocyanate is preferably 10 to 30% greater than the stoichiometric amount.
Le polyol est avantageusement l'huile de ricin :
CH₃-(CH₂)₅-CHOH-CH₅-CH=CH-(CH₂)₇-CO₂CH₂
CH₃-(CH₂)₅-CHOH-CH₂-CH=CH-(CH₂)₇-CO₂CH
CH₃-(CH₂)₅-CHOH-CH₂-CH=CH-(CH₂)₇-CO₂CH₂
The polyol is advantageously castor oil:
CH₃- (CH₂) ₅-CHOH-CH₅-CH = CH- (CH₂) ₇-CO₂CH₂
CH₃- (CH₂) ₅-CHOH-CH₂-CH = CH- (CH₂) ₇-CO₂CH
CH₃- (CH₂) ₅-CHOH-CH₂-CH = CH- (CH₂) ₇-CO₂CH₂
Les compositions de matériau selon l'invention se prêtent bien à l'incorporation de charges classiques telles que les charges minérales et les polymères fibreux.The material compositions according to the invention lend themselves well to the incorporation of conventional fillers such as mineral fillers and fibrous polymers.
Selon un autre mode de réalisation, le matériau selon l'invention présente une structure poreuse fermée.According to another embodiment, the material according to the invention has a closed porous structure.
L'incorporation de ces charges et/ou de ces pores confère aux matériaux selon l'invention une anisotropie visco-élastique contribuant avantageusement à l'obtention des propriétés tribologiques et de l'effet de surface recherché.The incorporation of these fillers and / or these pores gives the materials according to the invention a viscoelastic anisotropy which advantageously contributes to obtaining the tribological properties and the desired surface effect.
Le matériau selon l'invention peut être utilisé selon tout agencement géométrique convenable de la semelle. Il peut être utilisé seul ou combiné à un ou plusieurs matériaux du même type.The material according to the invention can be used according to any suitable geometrical arrangement of the sole. It can be used alone or combined with one or more materials of the same type.
La présente invention sera mieux comprise à l'aide de l'exemple qui suit d'un mode de réalisation du matériau destiné à la réalisation de semelles antirecul polyvalentes pour ski de fond, étant bien entendu que cet exemple illustre l'invention sans aucunement la limiter.The present invention will be better understood with the aid of the following example of an embodiment of the material intended for the production of multi-purpose anti-kickback soles for cross-country skiing, it being understood that this example illustrates the invention without in any way limiting it.
On part de la formulation suivante :
- huile de ricin : 100 parties en poids,
- mélange 50/50 TDI-MDI, 50 parties en poids,
- fibres de nylon (6-7 dtex, longueur 0,5-1 mm) 12 parties en poids,
- charge minérale (CaCO₃, 50 µm) 15 parties en poids.
- castor oil: 100 parts by weight,
- 50/50 TDI-MDI mixture, 50 parts by weight,
- nylon fibers (6-7 dtex, length 0.5-1 mm) 12 parts by weight,
- mineral filler (CaCO₃, 50 µm) 15 parts by weight.
On effectue la réticulation à 90°C pendant 48 heures,
et on utilise le matériau ainsi obtenu, de façon classique, comme partie de la semelle destinée à assurer la fonction antirecul. Le remplacement du carbonate de calcium par de l'aluminosilicate de sodium ou du talc conduit à l'obtention d'une structure poreuse fermée.Crosslinking is carried out at 90 ° C for 48 hours,
and using the material thus obtained, in a conventional manner, as part of the sole intended to ensure the anti-kickback function. The replacement of calcium carbonate by sodium aluminosilicate or talc leads to the production of a closed porous structure.
Les semelles ainsi obtenues présentent un caractère fortement hydrophobe qui lui est conféré par les chaînes grasses de l'huile de ricin. Ce caractère hydrophobe assure à la fois, comme on a pu le vérifier, une bonne glisse du matériau et un non collage de la neige rendant inutile l'application de produits anti-adhésifs comme les huiles de silicone.The soles thus obtained have a highly hydrophobic character which is given to it by the fatty chains of castor oil. This hydrophobic nature ensures both, as we have been able to verify, good sliding of the material and non-sticking of the snow, making the application of non-stick products such as silicone oils unnecessary.
Dans la zone des températures d'utilisation et pour des vitesses de déformation élevées (glissement), le module d'élasticité varie de 10⁸ à 10⁹ Pa ; pour des vitesses de déformation faibles (retenue), ce module se situe entre 5.10⁶ et 10⁸ Pa.In the zone of the temperatures of use and for high speeds of deformation (sliding), the modulus of elasticity varies from 10⁸ to 10⁹ Pa; for low strain rates (restraint), this module is between 5.10⁶ and 10⁸ Pa.
Il répond de ce fait, aux critères de visco-élasticité définis ci-avant : déformation visqueuse durant la phase d'impulsion ou de déformation statique et élasticité élevée durant la phase de déformation dynamique (phase de glisse).It therefore meets the viscoelasticity criteria defined above: viscous deformation during the impulse phase or static deformation and high elasticity during the dynamic deformation phase (gliding phase).
Claims (11)
- Anti-backsliding sole for cross-country ski, made of polyurethane, characterized in that it is substantially formed, in the zones containing the anti-backsliding component, from a material selected from polyurethanes obtained by polycondensation of polyalcohols having a hydrocarbon chain possessing between 8 and 20 atoms of carbon in hydrophilic functional groupings and of di-isocyanates selected from methane-diphenyl-di-isocyanate (MDI), toluene-di-isocyanate (TDI) and hexamethylene-di-isocyanate (HDI) used alone or as a mixture, the modulus of elasticity of this material being between 5.10⁶ Pa (Newton/m²) and 10⁸ Pa for speeds with a deformation corresponding to frequences within the range 0.1 to 10 Hz (s⁻¹) and the range 10⁸ and 10⁹ Pa for strain rates corresponding to frequencies within the range 1 to 100 Hz, the topology or roughness of the sole being furthermore compatible with the granulometry of different types of snow, since the distribution of profile heights allows grains of snow to penetrate the material during periods of propulsion.
- Sole according to Claim 1, characterized in that the quantity of di-isocyanate used in the polycondensation reaction is greater than the stoichiometric quantity.
- Claim according to Claim 2, characterized in that the quantity of di-isocyanate is between 10% and 30% greater than the stoichimetric quantity.
- Sole according to any one of Claims 1 to 3, characterized in that the polyalcohol is castor oil.
- Sole according to any one of Claims 1 to 4, characterized in that fillers selected from mineral fillers and fibrous polymers are incorporated into the material.
- Sale according to any one of Claims 1 to 5, characterized in that the material has a closed porous structure.
- Sole according to any one of the previous claims, characterized in that the material is used alone or combined, according to any suitable geometrical arrangement, with one or several materials of the same kind.
- Sole according to the totality of Claims 1 to 5, characterized in that it has the following composition:
- castor oil: 100 parts by weight- 50/50 TDI-MDI mixture: 50 parts by weight- nylon fibres: 12 parts by weight- mineral filler: 15 parts by weight. - Sole according to Claim 8, characterized in that the nylon fibres have the following characteristics: 6 - 7 dtex, 0.5 - 1 mm. length.
- Sole according to Claim 8, characterized in that the mineral filler consists of calcium carbonate.
- Sole according to the totality of Claims 6 to 8, characterized in that the mineral filler consists of sodium aluminosilicate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8514974 | 1985-09-30 | ||
| FR8514974A FR2587904B1 (en) | 1985-09-30 | 1985-09-30 | MULTI-PURPOSE ANTI-THEKLE SOLE FOR CROSS-COUNTRY SKIING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0227557A1 EP0227557A1 (en) | 1987-07-01 |
| EP0227557B1 true EP0227557B1 (en) | 1991-10-09 |
Family
ID=9323679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86420242A Expired - Lifetime EP0227557B1 (en) | 1985-09-30 | 1986-09-29 | Polyvalent, anti-back-sliding sole for a cross-country ski |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4705815A (en) |
| EP (1) | EP0227557B1 (en) |
| CA (1) | CA1277684C (en) |
| DE (1) | DE3681896D1 (en) |
| FR (1) | FR2587904B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759664A (en) * | 1996-02-29 | 1998-06-02 | Goode Ski Technologies | Composite ski |
| US6588772B2 (en) | 2000-12-28 | 2003-07-08 | The Burton Corporation | Sintered sheet plastic material and gliding board base material |
| EP1611928B1 (en) * | 2004-07-02 | 2006-10-11 | Ims Kunststoff Ag | Running sole for wintersport apparatus |
| GB0808434D0 (en) * | 2008-05-09 | 2008-06-18 | Histed Jonathon R | Improved running bases |
| WO2017213051A1 (en) * | 2016-06-10 | 2017-12-14 | 株式会社フジミインコーポレーテッド | Sliding instrument and method for manufacturing same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1961487A1 (en) * | 1968-02-11 | 1970-07-09 | Semperit Ag | Multi-layer ski and process for its manufacture |
| DE2726726A1 (en) * | 1977-06-14 | 1979-02-15 | Phoenix Ag | Improving gliding performance of a ski - by laminating thin polyurethane foam ply to its running surface |
| DE3005171C2 (en) * | 1980-02-12 | 1986-07-24 | Franz Völkl oHG, 8440 Straubing | Skiing surface training with a low-pressure polyethylene outsole exhibiting a roughening |
| EP0086939A3 (en) * | 1982-02-19 | 1984-04-11 | Karhu-Titan Oy | Coating material and coating for a ski for varying snow conditions, and method of making the same |
| US4540195A (en) * | 1983-02-23 | 1985-09-10 | Ramu International | Cross-country ski sole |
-
1985
- 1985-09-30 FR FR8514974A patent/FR2587904B1/en not_active Expired
-
1986
- 1986-09-12 US US06/907,070 patent/US4705815A/en not_active Expired - Fee Related
- 1986-09-29 EP EP86420242A patent/EP0227557B1/en not_active Expired - Lifetime
- 1986-09-29 CA CA000519356A patent/CA1277684C/en not_active Expired - Fee Related
- 1986-09-29 DE DE8686420242T patent/DE3681896D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2587904A1 (en) | 1987-04-03 |
| FR2587904B1 (en) | 1988-03-11 |
| US4705815A (en) | 1987-11-10 |
| CA1277684C (en) | 1990-12-11 |
| DE3681896D1 (en) | 1991-11-14 |
| EP0227557A1 (en) | 1987-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0807021B1 (en) | Polysiloxane compositions | |
| EP0227557B1 (en) | Polyvalent, anti-back-sliding sole for a cross-country ski | |
| EP0236201B1 (en) | Flexible transparent polyurethane coating for transparent glass or plastic substrates | |
| EP0640774B1 (en) | Friction material comprising powdered phenolic resin and method for making same | |
| Li et al. | New soybean oil‐Styrene‐Divinylbenzene thermosetting copolymers—IV. Good damping properties | |
| EP1633830B1 (en) | Silicon composition which can be crosslinked into an adhesive gel | |
| CA1332018C (en) | Ski bases, manufacturing process thereof and skis fitted with said bases | |
| US4728683A (en) | Surface dressing of roads | |
| EP1940939A2 (en) | Fireproof composition | |
| JP2005506408A (en) | Lubricant composition for use in a snowslide | |
| US4595215A (en) | Coating material and coating for a ski, for variable snow conditions, and method of manufacture of same | |
| CA1321853C (en) | Anticondensation clear covering layer made of flexible and resilient polyurethane for transparent glass or synthetic resine substrates | |
| EP0821030A1 (en) | Material of low friction coefficient and application of the material in the manufacture of skis and similar equipment and a method of producing the material of low friction coefficient | |
| FR2707298A1 (en) | Paving composition, material for a damping layer, their use for the preparation of a horseriding terrain and horse racetrack including them | |
| KR102041150B1 (en) | Asphalt Binder for Drainage Asphalt Pavement Mixture, Manufacturing Method Thereof and Drainage Asphalt Pavement Mixture Thereof | |
| KR100403283B1 (en) | A wiper blade coating composition for water repellent finish glass | |
| JP3366956B2 (en) | Lubricating rubber composition | |
| FR2674548A1 (en) | Draining bituminous mix (coated chipping) for road carpets (surface layers) | |
| JPS5974193A (en) | Solid lubricant | |
| GB2352782A (en) | Flexible resin boot for a constant-velocity universal joint | |
| JP4403320B2 (en) | Resin flexible boots | |
| KR100396744B1 (en) | A wiper blade coating composition for water repellent finish glass | |
| Wei et al. | Fretting behaviour of TiN coating | |
| CA1039885A (en) | Fluoroelastomer-based composite material | |
| BE874456A (en) | FRICTION MATERIAL FOR RAILWAY VEHICLES |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR IT LI SE |
|
| 17P | Request for examination filed |
Effective date: 19870911 |
|
| 17Q | First examination report despatched |
Effective date: 19880912 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR IT LI SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19911009 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19911009 |
|
| REF | Corresponds to: |
Ref document number: 3681896 Country of ref document: DE Date of ref document: 19911114 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19930528 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19930714 Year of fee payment: 8 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19931015 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19940930 Ref country code: LI Effective date: 19940930 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950601 |