Liquid thermoplastic polymer application patterns for high-traction applications

Abstract

The present invention provides an improved sole structure, a method for manufacturing the same, and a sports shoe equipped with the sole structure. [Solution] The present invention relates to a sole structure, preferably for sports shoes, comprising a base layer and a polymer layer arranged in a pattern on the ground-facing side of the base layer, wherein the pattern comprises one or more first regions and one or more second regions having a thinner thickness than one or more first regions, and the pattern comprises an alternating arrangement of the first and second regions, wherein the longitudinal extensions of the first and second regions are substantially perpendicular to the longitudinal axis of the sole structure, and / or the surface area of ​​the first region is at least twice the surface area of ​​the second region to provide grip when in contact with a surface, which is preferably a wet surface.

Description

Technical Field

[0001] The present invention relates to a sole structure, preferably for sports shoes, comprising a base layer and a polymer layer arranged in a certain pattern on the side of the base layer facing the ground, wherein the pattern comprises one or more first regions and one or more second regions having a thickness thinner than that of the one or more first regions, and the pattern comprises an alternating arrangement of the first regions and the second regions, and the longitudinal extension of the first regions and the second regions is substantially perpendicular to the longitudinal axis of the sole structure, and / or the surface area of the first regions is at least twice the surface area of the second regions in order to provide a grip when contacting a surface which is preferably a wet surface. Furthermore, the present invention relates to shoes comprising the sole structure and a method for manufacturing the sole structure.

Background Art

[0002] Sufficient traction, especially in the sole for sports shoes, is essential for improving ability and safety during physical training. Reducing the slipperiness of sports soles on smooth surfaces is essential and desirable for enhancing athletic performance and preventing injuries. To do so, advanced materials, as well as surface designs and coatings, are used in the manufacture of sports soles. Special rubber compounds are used because they provide high friction on smooth surfaces. Modern sports soles use a mixture of synthetic rubber and natural rubber to enhance grip. For example, one approach is to design a compound that becomes softer at higher temperatures, which results in an increase in traction when the sole warms up during activity.

[0003] A different technique for enhancing sole traction involves incorporating nanoparticles such as silica or carbon black into the rubber substrate, which can improve both durability and grip. These materials enhance the microstructure of the rubber, which provides better interaction with the surface. Furthermore, advanced designs include a fine texture on the sole that increases the contact area, improving grip on smooth surfaces. Another technique to prevent slipping involves a sole coating that repels or absorbs water depending on the application. This technique is primarily used to maintain traction in wet conditions.

[0004] European Patent No. 1784095 relates to a sports shoe including an upper and a sole, wherein the sole provides a traction pattern on the bottom to help grip the surface of a grass or hard court, and in this patent, in order to reduce weight while maintaining mechanical strength and flexibility, the running sole is molded directly inside the upper, with only the traction aid protruding outward from the upper.

[0005] Furthermore, U.S. Patent No. 8800174 relates to shoe soles including removable / replaceable gripping pods for athletic or sports shoes with enhanced traction, and shoe soles without such gripping pods. The sole portion or gripping pods may be supplied with a substance that exhibits tackiness to increase friction between the shoe sole and a hard floor.

[0006] U.S. Patent No. 1,0279581 relates to footwear products having a sole structure, and systems and methods for manufacturing the same. An exemplary shoe includes an upper and a sole plate, the sole plate having a ground-friendly lower surface having a first sole portion having a first sole structure and a second sole portion having a second sole structure, the first sole structure having a distal end and side walls including extensions extending from a central core, and the second sole structure having at least one geometric feature that differs in one or more aspects from the corresponding geometric features of the first sole structure.

[0007] However, a common drawback of these soles is that while the final sole may provide excellent traction in dry conditions, it struggles to maintain a high level of grip on smooth surfaces. This is even more problematic for wet surfaces in outdoor sports activities that take place in rainy conditions. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] European Patent No. 1784095 [Patent Document 2] U.S. Patent No. 8800174 [Patent Document 3] U.S. Patent No. 10279581 [Overview of the Initiative]

[0009] Therefore, an object of the present invention is to provide an improved sole structure and a method for manufacturing the same, as well as a sports shoe having the sole structure, thereby at least partially overcoming the aforementioned defects of the prior art.

[0010] The aforementioned problems are addressed by embodiments of the present invention.

[0011] In the first aspect, the present invention is a. Base layer, and b. Polymer layers arranged in a specific pattern on the side of the base layer facing the ground. A sole structure, preferably for sports shoes, comprising: The pattern comprises one or more first regions and one or more second regions, wherein the one or more second regions have a thinner thickness than the one or more first regions, and The pattern comprises an alternating arrangement of a first region and a second region, wherein the longitudinal extensions of the first and second regions are substantially perpendicular to the longitudinal axis of the sole structure, and / or The present invention relates to a sole structure in which the surface area of ​​the first region is at least twice the surface area of ​​the second region.

[0012] The sole structure of the present invention has been shown to enhance traction on smooth and wet surfaces while simultaneously reducing the likelihood of slipping. When using the sole structure according to the present invention, the running ability of the wearer, for example, an athlete, is substantially improved. For example, by reducing the risk of slipping on wet and smooth surfaces, the sole structure provides an improved overall physical training experience and results. In particular, the sole structure of the present invention also shows a significant improvement in friction compared to conventional sole structures. Furthermore, the sole structure has the advantage that it can be individually designed based on the frictional forces acting on the sole structure. Specifically, the individual's walking pattern and leading force vector can be used to tailor the specific application of the sole structure to, for example, the athlete's personal running style. In addition, the sole structure is significantly lighter and thinner due to inventive materials and manufacturing methods that make the overall sole structure more desirable.

[0013] The “sole structure” as defined in this disclosure is, but is not limited to, the bottom portion of a shoe or footwear that provides cushioning, support, and traction to the wearer.

[0014] The “polymer layer” as described herein is a layer comprising one or more polymers, but is not limited to these. The polymer layer is preferably made from a durable and long-lasting material. In particular, the polymer material provides a contact zone, for example, that comes into contact with the ground during walking. Furthermore, the polymer layer provides flexibility, durability, cushioning, and support in the sole structure.

[0015] The “base layer” as defined herein is, but is not limited to, a fundamental part of the sole structure that helps maintain the structural integrity of the sole structure. The base layer may include materials that absorb shock and reduce impact on joints. The base layer is made from durable materials to withstand wear and tear from constant use. The base layer functions together with the sole structure and other layers of the sports shoe, and in particular with polymer layers.

[0016] In some embodiments, the polymer layer in one or more first regions may have a thickness of 0.1 mm to 0.9 mm, preferably 0.2 mm to 0.8 mm, more preferably 0.3 mm to 0.7 mm, even more preferably 0.4 mm to 0.6 mm, and most preferably 0.5 mm.

[0017] This specific thickness of the polymer layer provides an overall thinner sole structure. This has the advantage of allowing for more natural foot movement, which enables better foot flexion, such as toe splay. In this way, a more natural gait is promoted, reducing the burden on specific parts of the foot and leg. Furthermore, using a polymer layer of a specific thickness enhances the wearer's proprioceptive sense of the foot on the ground. This is particularly important in sports such as running, barefoot training, and agility training, where precise foot positioning and balance are crucial. Moreover, using the polymer layer of the present invention provides less material between the foot and the ground compared to conventional soles, which leads to faster response times for the wearer. This is advantageous in sports that require rapid changes in direction, acceleration, or deceleration. In addition, the specific thickness of the polymer layer keeps the foot closer to the ground, which reduces the "stack height" of sports shoes, for example. This improves stability and balance when using the polymer layer of the present invention.

[0018] In some embodiments, the polymer layer in one or more second regions may have a thickness of 0 mm. In this way, the second region is polymer-free and comprises only a base layer. This leads to an increase in the surface area of ​​the sole structure, thereby improving grip on the ground and traction of the sole structure.

[0019] In some embodiments, the pattern may be a grid, lattice, line, spiral, honeycomb, dot, wave, sinusoidal pattern, or any combination thereof. Alternatively, or in addition, the pattern may be a contoured and / or filled pattern. In some embodiments, the polymer layer in one or more second regions may have the same thickness as the one or more first regions.

[0020] These specific patterns improve the traction of the sole structure, which helps the wearer maintain a secure foothold on various surfaces. This improved traction allows the wearer to experience better stability, which reduces the likelihood of slipping or losing balance. This is particularly important in sports that require sudden stops, lateral movement, and sharp turns, such as running, football, basketball, and tennis. In particular, using the patterns of the present invention enables faster turns, cuts, and lateral movement.

[0021] In some embodiments, each of one or more first regions may contain a greater amount of polymer than each of one or more second regions.

[0022] The difference in the amount of polymer on these first and second regions provides a variable height that provides better grip across a plurality of surface types, such as wet terrain, dry terrain, muddy terrain, or uneven terrain. The first region can penetrate into softer surfaces such as grass or soil, while the second region maintains contact on harder surfaces. In this way, the grip of the sole structure is improved.

[0023] In some embodiments, the surface area of one or more first regions can be at least 2.5 times, preferably at least 3 times, the surface area of one or more second regions.

[0024] This specific ratio of these first regions to the second regions enables enhanced grip and traction of the sole structure.

[0025] In some embodiments, the pattern may comprise an alternating arrangement of the first region and the second region such that the longitudinal extensions of the first region and the second region may be substantially perpendicular to the longitudinal axis of the outsole. The first region may have a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension of at least 1.0 mm, preferably at least 2.0 mm, more preferably at least 2.5 mm, most preferably at least 3.0 mm, and / or up to 9.0 mm, preferably up to 7.0 mm, more preferably up to 5.0 mm, most preferably up to 3.5 mm, and / or The second region may have a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension of at least 0.2 mm, preferably at least 0.3 mm, more preferably at least 0.4 mm, most preferably at least 0.5 mm, and / or up to 3.0 mm, preferably up to 2.5 mm, more preferably 2.0 mm, most preferably up to 1.5 mm.

[0026] This specific length, thickness, and / or width demonstrated improved traction characteristics. In particular, the substantially perpendicular first and second regions provide excellent grip of the sole structure on wet and / or smooth surfaces.

[0027] In some embodiments, the polymer in the polymer layer may be from the group of polyurethane (PU), thermoplastic polyamide (TPE-A or TPA), thermoplastic polyester (TPE-E or TPE), thermoplastic styrene block copolymer (TPE-S or TPS), thermoplastic polyurethane (TPE-U or TPU), thermoplastic vulcanizate (TPE-V or TPV), rubber or ethylene vinyl copolymer (EVA), preferably thermoplastic polyurethane (TPE-U or TPU), and / or combinations thereof.

[0028] These polymers reduce the likelihood of slipping while simultaneously enabling enhanced traction. Furthermore, the use of these particular polymers has been shown to provide a more durable and long-lasting sole structure while simultaneously achieving a time-efficient and sustainable process in the production of the sole structure. Suitable polymer materials may be elastic foam materials such as thermoplastic elastomers and / or elastomers. The preferred material used in this disclosure is a thermoplastic elastomer. More preferred materials used in this disclosure are urethane-based thermoplastic elastomers (TPU), polyester-based thermoplastic elastomers (TPE), and / or polyamide-based thermoplastic elastomers (TPA).

[0029] The polymer may also be characterized by a Shore A value and / or Shore D value, where the Shore A value may be in the range of 20 to 120, preferably 40 to 100, more preferably 60 to 80, and the Shore D value may be in the range of 2 to 80, preferably 5 to 75, more preferably 8 to 70. The use of polymers having these Shore A and / or Shore D values ​​provides durable properties for the polymer layer and the overall sole structure.

[0030] In some embodiments, one or more first regions and one or more second regions may have a wavy shape.

[0031] The wavy shape allows for an enlarged surface area of ​​the sole structure, while the longitudinal extensions of the first and second regions are substantially perpendicular to the longitudinal axis of the sole structure. In this way, the sole structure provides enhanced traction and grip.

[0032] In some embodiments, the corrugated shape may have an amplitude of at least 1 mm, preferably at least 2 mm, more preferably at least 3 mm, most preferably at least 3.5 mm, and / or an amplitude of up to 9 mm, preferably up to 8 mm, more preferably up to 7 mm, even more preferably up to 6 mm, even more preferably up to 5 mm, most preferably up to 4.5 mm.

[0033] These specific amplitude values ​​of the wavy shape have been shown to enhance the traction characteristics of the sole structure.

[0034] In some embodiments, the corrugated shape may substantially correspond to a sine wave. In some embodiments, the corrugated shape may have a wavelength of at least 2 mm, preferably at least 4 mm, more preferably at least 6 mm, most preferably at least 7 mm, and / or up to 14 mm, preferably up to 12 mm, more preferably up to 10 mm, most preferably up to 9 mm.

[0035] Certain wavelengths have been shown to provide excellent traction properties for sole structures on wet surfaces.

[0036] In some embodiments, the amplitude-to-wavelength ratio may be at least 0.1:4, preferably at least 0.2:3, more preferably at least 0.3:2, most preferably at least 0.8:3.5, and / or up to 3:0.5, preferably up to 2:1, more preferably up to 1:1, and most preferably up to 1:2.

[0037] These specific ratios of wavelength to amplitude provide beneficial grip characteristics for the sole structure.

[0038] In some embodiments, the pattern may be a linear pattern, and the width of one or more first regions may be at least 1 mm, preferably at least 1.5 mm, more preferably at least 2 mm, most preferably at least 3 mm, and / or the second region of one or more second regions may have a width of at least 0.3 mm, preferably at least 0.7 mm, most preferably at least 1 mm.

[0039] In some embodiments, the shoes may be running shoes. By using the sole structure of the present invention, an improved sports shoe is provided that exhibits excellent traction on wet and smooth surfaces.

[0040] In some embodiments, the base layer may be the midsole of a sports shoe or a part thereof.

[0041] In this way, the sole structure of the present invention is directly incorporated into the midsole. This reduces the overall weight of the sports shoe, making it more desirable and materially efficient. The base layer may include a cushioning element.

[0042] In some embodiments, the polymer layer may be placed in one or more sections corresponding to sections of a sports shoe, including the toe section, forefoot section, heel section, midfoot section, sidewall section, and / or upper section.

[0043] By doing so, the sole structure can be designed based on the individual needs of the wearer. For example, a polymer layer may be placed in the sidewall section to provide more grip when rapidly turning and changing direction, such as when playing basketball.

[0044] In a second aspect, the present invention relates to sports shoes having a sole structure according to the present invention. Sports shoes of the present invention exhibit improved traction and grip characteristics, particularly on wet and / or smooth surfaces. Furthermore, when using sports shoes of the present invention, grip and traction are improved during physical training. In some embodiments, the sports shoes may be running shoes. When used during running, running shoes of the present invention exhibit improved traction. In particular, when running shoes of the present invention are used, for example in rainy conditions, the sole structure reduces the risk of slipping for the wearer.

[0045] In a third aspect, the present invention is preferably a method for manufacturing a sole structure for sports shoes, a. Steps to prepare the polymer, b. Steps to prepare the solvent, c. A step of forming a liquefied polymer by mixing the polymer and the solvent, d. Step c) The step of placing the liquefied polymer on the base layer, e. A step of curing the liquefied polymer placed on the base layer, f. The step of providing a pattern on the sole structure comprising one or more first regions and one or more second regions, Includes, The method relates to a method wherein, in step d), the liquefied polymer is placed on the base layer in a pattern, and / or, after step e), the pattern is obtained by post-processing the cured polymer, and the placement of the liquefied polymer provides an alternating arrangement of first and second regions, wherein the longitudinal extensions of the first and second regions are substantially perpendicular to the longitudinal axis of the sole structure, and / or, the surface area of ​​the first region is at least twice the surface area of ​​the second region.

[0046] The “solvent” as used in this disclosure is a compound capable of dissolving, dispersing, or extracting a polymer, but is not limited to such compounds.

[0047] The term "curing" as used in this disclosure should be understood as a chemical and / or physical process of hardening, setting, and / or solidifying a polymer, though not limited to this. Curing may be carried out using radiation.

[0048] The term "mixing" as used in this disclosure should be understood, but is not limited to, a process of combining two or more substances to produce a mixture of the individual substances, preferably in liquid form.

[0049] The “arranging” as described herein should be understood, but is not limited to, a process of coating and depositing a liquefied polymer onto a base layer.

[0050] A "liquified polymer" should be understood as a polymer that possesses the physical properties of a semi-solid or liquid, although this definition is not limited to that.

[0051] The “post-processing,” “texturing,” or “post-treating” as used in this disclosure should be understood as processes that manipulate the physical properties of a sole structure to enhance its traction, but are not limited to such processes. In particular, this may be done by external influences, such as mechanical force, lasers, and / or the addition of additives. In doing so, the sole structure is provided with a texture that can significantly improve the traction properties of the sole structure.

[0052] The advantage of the method for manufacturing sole structures is that it provides enhanced traction and friction performance to the sole structure while avoiding, for example, the deposition of adhesive bases and injection molded bases. Sole structures can be used in particular to make outsoles lighter and thinner, for example, but they can also be used to enhance the grip of sports shoes for specific physical training, for example, by placing liquefied polymers in specific zones of sports shoes.

[0053] Conventional sole structures, such as outsoles for sports shoes, are typically manufactured by, for example, injection molding. The method according to the present invention is based on a different method, namely, the preparation of a liquefied polymer by mixing a polymer and a solvent, the liquefied polymer being applied to a base layer and cured. In this way, the sole structure can be manufactured more efficiently, while the liquefied polymer can be positioned more precisely and efficiently. By doing so, material waste is not produced, for example, by cutting off excess material. Thus, the method according to the present invention provides an improved method for producing inventive sole structures, for example, for sports shoes, by consuming only the amount of material required and avoiding the production of any waste.

[0054] The use of liquefied polymers has been shown to be advantageous for the overall manufacturing process because the properties of the liquefied polymer can be fine-tuned based on specific process requirements. Specifically, liquefied polymers can exhibit different kinematic viscosity coefficients by increasing or decreasing the amount of solvent. In this way, polymer deposition can be significantly affected, meaning that the polymer can be deposited on the base layer in a more efficient manner.

[0055] Furthermore, not only is manual assembly not required, but application is possible without adhesive, providing an efficient process that reduces material consumption and thus lowers overall costs, and such a process can be applied to automated processes. Adhesion may require complex pretreatment of components, and additional adhesives used for bonding plastic components are often harmful or environmentally hazardous.

[0056] The liquefied polymer can be deposited on predetermined parts of the sports shoe. For example, the liquefied polymer may be placed only in the heel section or the toe section. Furthermore, the liquefied polymer may have different physical properties in each predetermined part. In this way, the sports shoe can be conceptually adapted to individual requirements while not only enabling a lighter overall weight of the sports shoe but also increasing the durability and traction of the sports shoe.

[0057] In some embodiments, the method may further include a texturing step, which may occur before the step of curing the liquefied polymer. The texturing step may include adding additives. For example, rubber particles may be added to the liquefied polymer. The rubber particles may have a particle size of 0.3 to 0.4 mm. When the liquefied polymer is cured, the sole structure obtains a rough design with a non-uniform surface structure. Another example of texturing involves adding, for example, silica (e.g., Evonik Acematt TS100 or Evonik Acematt 790) preferably 2 wt.-% to the polymer before mixing with the solvent. The sole structure thus produced has a matte appearance. The post-treatment step according to the present invention has been shown to provide a sole structure that exhibits 30% better traction compared to conventional sole structures.

[0058] The step of texturing the polymer precedes the curing step. It is also possible to texture the polymer after it has cured. In this way, a pattern can be obtained through post-processing, such as mechanically roughening the polymer.

[0059] In some embodiments, the method may further include mechanically post-treating the cured polymer.

[0060] For example, the sole structure may be treated in a manner such as polishing by using a rotating brush. In this way, texture is added to the sole structure. By doing so, the surface area of ​​the sole structure is increased, which results in better traction. Furthermore, the surface of the sole structure is thus manipulated to provide individual designs that may be desirable, for example, to the wearer. The selection of the post-treatment device depends on the desired pattern and / or the physical properties of the cured polymer.

[0061] In some embodiments, post-processing of the cured polymer may include laser treatment.

[0062] Laser processing can be performed by manipulating the thickness of the polymer layer, i.e., by cutting out a specific area on the polymer layer, thereby providing a second area of ​​the sole structure. For example, the surface of the sole structure can be engraved via laser energy. In this way, the top surface is treated with a laser and, for example, burned off. This preferably affects the thickness of the cured polymer by about 0.3 mm. By doing so, an improved appearance of the sole structure is created while providing a second area.

[0063] In some embodiments, the solvent may be a mixture selected from the group of solvent-based solvents and / or aqueous solvents, preferably a mixture selected from the group of solvent-based solvents, more preferably a mixture selected from the group of (C1-C6) ethers, (C1-C10) esters, (C1-C8) ketones, (C1-C8) alkanes, and / or combinations thereof.

[0064] The solvent may be one or more of the following: tetrahydrofuran (THF), methyl ethyl ketone (MEK), cyclohexane (CYC), ethyl acetate, and butyl acetate, preferably THF and / or CYC. These solvents have the advantage of providing a homogeneous mixture when mixed with the polymer. Furthermore, the solvent has the advantage of being removable in a time-efficient manner during the curing process and enabling a production process that can be adapted to the various physical properties of the liquefied polymer.

[0065] In some embodiments, in step e), curing may be carried out at a temperature between 20°C and 150°C, preferably between 30°C and 100°C, more preferably between 40°C and 50°C, and the curing time may be between 2 minutes and 750 minutes, preferably between 5 minutes and 390 minutes, more preferably between 10 minutes and 30 minutes.

[0066] These specific curing temperatures have the advantage of providing a rapid curing time.

[0067] In some embodiments, during step c), the ratio of the polymer in the mixture to the solvent may be in the range of 10 to 90 wt.%, preferably 20 to 80 wt.%, and more preferably 30 to 70 wt.%.

[0068] A specific ratio was shown to provide the desired viscosity of the liquefied polymer.

[0069] In some embodiments, the step of placing the liquefied polymer on the base layer in step c) may be performed with a kinematic viscosity coefficient of 10,000 to 50,000 mPa·s, preferably 20,000 to 40,000 mPa·s.

[0070] These specific viscosities provide a process for the rapid placement of the liquefied polymer onto the base layer. In this way, the overall process is carried out in a time- and energy-efficient manner.

[0071] The kinematic viscosity coefficient is measured via rotational viscosity measurement. Viscosity is determined by applying rotational shear stress and observing the resistance to rotation. In particular, viscosity is determined by measuring the fluid resistance of the liquefied polymer by rotating a probe within a sample of the liquefied polymer and measuring the torque required to rotate the probe.

[0072] In some embodiments, the outsole may be a sole structure according to a first aspect of the present invention. In addition, or instead, the sole structure may be a sole. Using an inventive sole structure as an outsole and / or sole has been shown to improve the traction of sports shoes.

[0073] In a fourth aspect, the present invention relates to an outsole obtained by a method according to a third aspect of the present invention.

[0074] Many of the advantages discussed in relation to other aspects of the present invention also apply to the method according to the third aspect, i.e., the outsole obtained by the method of the present invention.

[0075] The inventors emphasize that all aspects, features, and options discussed in the context of the first aspect and disclosed above may apply to or be combined with the discussion and disclosure of the second aspect, and vice versa, unless physically or technically permissible, even if all possible combinations or partial combinations of features are not explicitly stated below. Therefore, for the sake of brevity, the technical merits of such options and features already discussed above will not be repeated, at least not to the same degree of detail, but rather the corresponding descriptions above will be referenced.

[0076] The present invention includes the following embodiments.

[0077] 1. Preferably a sole structure (10) for sports shoes (20), a. Base layer (40), and b. Polymer layers (30) arranged in a pattern (50) on the side of the base layer (40) facing the ground. Equipped with, Pattern (50) comprises one or more first regions (35) and one or more second regions (45), One or more second regions (45) have a thinner thickness than one or more first regions (35), and Pattern (50) comprises an alternating arrangement of a first region (35) and a second region (45), wherein the longitudinal extensions of the first region (35) and the second region (45) are substantially perpendicular to the longitudinal axis of the sole structure, and / or Sole structure (10), where the surface area of ​​the first region (35) is at least twice the surface area of ​​the second region (45).

[0078] 2. The sole structure (10) according to Embodiment 1, wherein the polymer layer (30) in one or more first regions (35) has a thickness of 0.1 mm to 0.9 mm, preferably 0.2 mm to 0.8 mm, more preferably 0.3 mm to 0.7 mm, even more preferably 0.4 mm to 0.6 mm, and most preferably 0.5 mm.

[0079] 3. The polymer layer (30) in one or more second regions (45) has a thickness of 0 mm, the sole structure (10) according to Embodiment 1 or 2.

[0080] 4. The sole structure (10) according to any one of embodiments 1 to 3, wherein the pattern (50) is a grid, lattice, line, spiral, honeycomb, dot, wave, sinusoidal pattern, or any combination thereof.

[0081] 5. A sole structure (10) according to any one of Embodiments 1 to 4, wherein each of one or more first regions (35) contains a greater amount of polymer than each of one or more second regions (45).

[0082] 6. A sole structure (10) according to any one of embodiments 1 to 5, wherein the surface area of ​​one or more first regions (35) is at least 2.5 times, preferably at least 3 times, the surface area of ​​one or more second regions (45).

[0083] 7. Pattern (50) comprises an alternating arrangement of a first region (35) and a second region (45), wherein the longitudinal extensions of the first region (35) and the second region (45) are substantially perpendicular to the longitudinal axis of the outsole. The first region (35) has a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension, of at least 1.0 mm, preferably at least 2.0 mm, more preferably at least 2.5 mm, most preferably at least 3.0 mm, and / or a maximum of 9.0 mm, preferably at least 7.0 mm, more preferably at least 5.0 mm, most preferably at least 3.5 mm, and / or The second region (45) has a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension, of at least 0.2 mm, preferably at least 0.3 mm, more preferably at least 0.4 mm, most preferably at least 0.5 mm, and / or a maximum of 3.0 mm, preferably at least 2.5 mm, more preferably at least 2.0 mm, most preferably at least 1.5 mm. A sole structure (10) according to any one of embodiments 1 to 6.

[0084] 8. The sole structure (10) according to any one of Embodiments 1 to 7, wherein the polymer in the polymer layer (30) is from the group consisting of polyurethane (PU), thermoplastic polyamide (TPE-A or TPA), thermoplastic polyester (TPE-E or TPE), thermoplastic styrene block copolymer (TPE-S or TPS), thermoplastic polyurethane (TPE-U or TPU), thermoplastic vulcanized material (TPE-V or TPV), rubber or ethylene vinyl copolymer (EVA), preferably thermoplastic polyurethane (TPE-U or TPU), and / or combinations thereof.

[0085] 9. A sole structure (10) according to any one of embodiments 1 to 8, wherein one or more first regions (35) and one or more second regions (45) have a wavy shape.

[0086] 10. The sole structure (10) according to Embodiment 9, wherein the wavy shape has an amplitude of at least 1 mm, preferably at least 2 mm, more preferably at least 3 mm, most preferably at least 3.5 mm, and / or up to 9 mm, preferably up to 8 mm, more preferably up to 7 mm, even more preferably up to 6 mm, even more preferably up to 5 mm, most preferably up to 4.5 mm.

[0087] 11. A sole structure (10) according to embodiment 9 or 10, wherein the wavy shape substantially corresponds to a sine wave.

[0088] 12. A sole structure (10) according to any one of embodiments 9 to 11, wherein the wavy shape has wavelengths of at least 2 mm, preferably at least 4 mm, more preferably at least 6 mm, most preferably at least 7 mm, and / or up to 14 mm, preferably up to 12 mm, more preferably up to 10 mm, most preferably up to 9 mm.

[0089] 13. The sole structure (10) according to any one of embodiments 9 to 12, wherein the amplitude-to-wavelength ratio is at least 0.1:4, preferably at least 0.2:3, more preferably at least 0.3:2, most preferably at least 0.8:3.5, and / or up to 3:0.5, preferably up to 2:1, more preferably up to 1:1, most preferably up to 1:2.

[0090] 14. The sole structure (10) according to any one of embodiments 1 to 8, wherein the pattern is a linear pattern, and the width of one or more first regions (35) is at least 1 mm, preferably at least 1.5 mm, more preferably at least 2 mm, most preferably at least 3 mm, and / or the width of one or more second regions (45) is at least 0.3 mm, preferably at least 0.7 mm, most preferably at least 1 mm.

[0091] 15. The shoe (20) is a running shoe (25), the sole structure (10) according to any one of embodiments 1 to 14.

[0092] 16. The sole structure (10) according to any one of embodiments 1 to 15, wherein the base layer is the midsole (65) or a portion thereof of a sports shoe (20).

[0093] 17. A sole structure (10) according to any one of embodiments 1 to 16, wherein the polymer layer (30) is positioned in one or more sections corresponding to sections of a sports shoe (20), including a toe section (21), a forefoot section (22), a heel section (23), a midfoot section (24), a sidewall section (27), and / or an upper section (28).

[0094] 18. A sports shoe (20) comprising the sole structure (10) described in any one of Embodiments 1 to 17.

[0095] 19. The sports shoe (25) is a running shoe (26), as described in Embodiment 18.

[0096] 20. A method (1000) for manufacturing a sole structure (10) preferably for a sports shoe (20), a. Step (1010) of preparing the polymer, b. Step of preparing the solvent (1020), c. A step of forming a liquefied polymer by mixing the polymer and the solvent (1030), d. Step (1040) of placing the liquefied polymer from step c) onto the base layer, e. A step (1050) of curing the liquefied polymer placed on the base layer, f. The step (1060) of providing a sole structure with a pattern comprising one or more first regions and one or more second regions, Includes, In step d), the liquefied polymer is placed on the base layer in a pattern, and / or, after step e), the pattern is obtained by post-processing the cured polymer, and, The arrangement of the liquefied polymer provides an alternating arrangement of the first region (35) and the second region (45), such that the longitudinal extensions of the first region (35) and the second region (45) are substantially perpendicular to the longitudinal axis of the sole structure, and / or Method (1000), wherein the surface area of ​​the first region (35) is at least twice the surface area of ​​the second region (45).

[0097] 21. The method according to Embodiment 20 (1000), further comprising a texturing step (1070), the texturing step occurring prior to the step of curing the liquefied polymer, and the texturing step comprising adding additives and / or mechanically post-treating the cured polymer.

[0098] 22. The method according to Embodiment 20 or 21, further comprising the step of mechanically post-treating the cured polymer (1080) (1000).

[0099] 23. Post-processing of the cured polymer is the method according to Embodiment 20, including laser treatment (1000).

[0100] 24. The method according to any one of Embodiments 20 to 23 (1000), wherein the solvent is a mixture selected from the group of solvent-based solvents and / or aqueous solvents, preferably a mixture selected from the group of solvent-based solvents, more preferably a mixture selected from the group of (C1-C6) ethers, (C1-C10) esters, (C1-C8) ketones, (C1-C8) alkanes, and / or combinations thereof.

[0101] 25. The method according to any one of Embodiments 20 to 24 (1000), wherein in step e) (1050), curing is carried out at a temperature between 20°C and 150°C, preferably between 30°C and 100°C, more preferably between 40°C and 50°C, and the curing time is between 2 minutes and 750 minutes, preferably between 5 minutes and 390 minutes, more preferably between 10 minutes and 30 minutes.

[0102] 26. The method according to any one of Embodiments 20 to 25 (1000), wherein in step c) (1030), the ratio of the polymer in the mixture to the solvent is in the range of 10 to 90 wt.%, preferably 20 to 80 wt.%, and more preferably 30 to 70 wt.%.

[0103] 27. The method according to any one of Embodiments 20 to 26, wherein the step (1040) of placing the liquefied polymer on the base layer of step c) is performed with a kinematic viscosity coefficient of 10,000 to 50,000 mPa·s, preferably 20,000 to 40,000 mPa·s.

[0104] 28. The method according to any one of embodiments 20 to 27, wherein the outsole is the sole structure described in any one of embodiments 1 to 19 (1000).

[0105] 29. An outsole (10) obtained by the method (1000) described in any one of embodiments 20 to 28.

[0106] Possible embodiments of the present invention will be further described in the following detailed description with reference to the following figures. [Brief explanation of the drawing]

[0107] [Figure 1] This figure shows one embodiment of a sole structure having a linear pattern. [Figure 2] This figure shows one embodiment of a sole structure having a wave pattern. [Figure 3] This figure shows one embodiment of a sole structure having a post-processed grid-shaped pattern. [Figure 4] This figure shows one embodiment of a sole structure featuring a post-processed wave-shaped pattern. [Figure 5] This figure shows three embodiments of a textured and post-processed sole structure. [Figure 6] This figure shows the frictional characteristics of the sole structure according to the present invention in a relative manner. [Figure 7a] This figure shows a preferred embodiment of a sports shoe having a sole structure according to the present invention. [Figure 7b] This figure shows a preferred embodiment of a sports shoe having a sole structure according to the present invention. [Figure 7c] This figure shows a preferred embodiment of a sports shoe having a sole structure according to the present invention. [Figure 8] This is a flowchart illustrating the process for manufacturing the sole structure. [Modes for carrying out the invention]

[0108] Possible embodiments of the present invention and various aspects of this disclosure are described below, primarily with respect to sports shoes. However, it should be reiterated that various embodiments can also be practiced in various types of soles and shoes, and are not limited to the specific embodiments described below.

[0109] It should be further noted that only individual embodiments may be described in more detail below. Those skilled in the art will understand that the features and possible modifications described in relation to those particular embodiments may be further modified and / or combined with each other in different manner or in different partial combinations without departing from the scope of the present invention and disclosure. Individual or partial features may be omitted if they are not necessary to obtain the desired result. Accordingly, to avoid redundancy, the descriptions in the previous section are referenced, and this also applies to the detailed descriptions below.

[0110] Figure 1 shows one embodiment of the sole structure 10. The sole structure 10 comprises a base layer 40, on which a polymer layer 30 is arranged in a linear pattern 50.

[0111] Pattern 50 comprises a first region 35 and a second region 45. The first region 35 and the second region 45 are arranged in an alternating manner in pattern 50. As can be seen from Figure 1, the first region 35 and the second region 45 are substantially perpendicular to the longitudinal axis (shown as a dotted line) of the sole structure 10.

[0112] However, pattern 50 may be a grid, lattice, line, spiral, honeycomb, dot, wave, sine wave pattern, or any combination thereof.

[0113] The first region 35 contains a larger amount of polymer than the second region 45. As can be seen from the figure, the second region 45 does not have a polymer layer 30. In other words, the polymer layer 30 in these second regions 45 has a thickness of 0 mm. The polymer layer 30 in the first region 35 has a thickness of 0.5 mm. However, the thickness of the polymer layer in the first region 35 can vary depending on the individual requirements of the application. Therefore, the sole structure 10 may have a thickness between 0.1 and 0.9 mm. The surface area of ​​the first region 35 is significantly larger than the surface area of ​​the second region 45. Preferably, the surface area of ​​the first region 35 is at least three times larger.

[0114] The first region 35 in Figure 1 has a thickness in a direction substantially perpendicular to the longitudinal extension. The thickness of the first region 35 is at least 1.0 mm, preferably at least 2.0 mm, more preferably at least 2.5 mm, and most preferably at least 3.0 mm. The width of the second region 45 is at most 9.0 mm, preferably at most 7.0 mm, more preferably at most 5.0 mm, and most preferably at most 3.5 mm. The second region 45 also has a thickness in a direction substantially perpendicular to the longitudinal extension of the sole structure. The thickness of the second region 45 is at least 0.2 mm, preferably at least 0.3 mm, more preferably at least 0.4 mm, most preferably at least 0.5 mm, and / or at most 3.0 mm, preferably at most 2.5 mm, more preferably at most 2.0 mm, and most preferably at most 1.5 mm.

[0115] In particular, the first region 35 has a width of at least 1 mm. The width of the first region 35 is preferably at least 1.5 mm, more preferably at least 2 mm, and most preferably at least 3 mm. The second region 45 has a width of at least 0.3 mm. The width of the second region 45 is preferably at least 0.7 mm, and most preferably at least 1 mm.

[0116] The polymer layer 30 contains a TPU-based polymer. However, the polymer in the polymer layer 30 may be made from polyurethane (PU), thermoplastic polyamide (TPE-A or TPA), thermoplastic polyester (TPE-E or TPE), thermoplastic styrene block copolymer (TPE-S or TPS), thermoplastic polyurethane (TPE-U or TPU), thermoplastic vulcanized material (TPE-V or TPV), rubber, or ethylene vinyl copolymer (EVA).

[0117] The base layer 40 may be partially or completely incorporated into the midsole of the sports shoe. The polymer layer 30 is preferably the outsole of the sports shoe. A sports shoe having the sole structure 10 is particularly a running shoe. In this case, the running shoe has excellent traction characteristics due to the sole structure 10. This is particularly advantageous when running on wet and / or smooth ground, for example outdoors, during rainy conditions.

[0118] To avoid redundancy, only additional features and / or differences will be described below with respect to the embodiments shown in Figures 2 through 7.

[0119] As can be seen from Figure 2, the first region 35 and the second region 45 of the sole structure 10 have a wavy shape corresponding to a sine wave. In particular, the second region 45 has a thinner thickness and width than the first region 35. In this way, the surface area of ​​the first region 35 is increased. In particular, the surface area of ​​the first region 35 is at least 2.5 times that of the second region 45. Preferably, the ratio of the surface areas between the first region 35 and the second region 45 can be at least 3 times.

[0120] The corrugated shapes of the first region 35 and the second region 45 have a wavelength of at least 2 mm. The wavelength may be at least 4 mm, more preferably at least 6 mm, and most preferably at least 7 mm. Furthermore, the wavelength of the corrugated shapes of the first region 35 and the second region 45 is up to 14 mm. This wavelength may be preferably up to 12 mm, more preferably up to 10 mm, and most preferably up to 9 mm.

[0121] Specifically, the wavy shape of the first region 35 and the second region 45 has an amplitude of at least 1 mm and a maximum of 9 mm. The amplitude may be at least 2 mm, more preferably at least 3 mm, and most preferably at least 3.5 mm. Furthermore, this amplitude of the wavy shape may be a maximum of 8 mm, more preferably at least 7 mm, even more preferably at least 6 mm, even more preferably at least 5 mm, and most preferably at least 4.5 mm.

[0122] When the wavelength and amplitude of a wave-shaped waveform are expressed relative to each other, the ratio of amplitude to wavelength is at least 0.1:4. However, the ratio may preferably be at least 0.2:3, more preferably at least 0.3:2, and most preferably at least 0.8:3.5.

[0123] Furthermore, the wavelength-to-amplitude ratio is at most 3:0.5. The ratio may preferably be at most 2:1, more preferably at most 1:1, and most preferably at most 1:2.

[0124] In Figure 3, pattern 50 has a grid-shaped pattern. The sole structure 10 comprises an alternating arrangement of a first region 35 and a second region 45. The arrangement is in the longitudinal extensions of the first region 35 and the second region 45 that are substantially perpendicular to the longitudinal axis of the sole structure (shown by a dotted line). The surface area of ​​the first region 35 is twice the surface area of ​​the second region 45.

[0125] The second region 45 has a thinner thickness than the first region 35. As can be seen from Figure 3, the second region 45 is not without a polymer layer 30, but rather has a polymer layer 30 of a specific thickness. This thickness is preferably 0.2 mm. The second region is created using laser processing. In this way, the polymer layer 30 of the second region 35 is cut using a laser to a thickness of 0.3 mm.

[0126] Furthermore, the sole structure 10 in Figure 3 is provided with texture. This texture is provided by using additives, particularly silica-based or rubber-based additives. In this way, the surface of the sole structure 10 is further enlarged, resulting in improved traction and grip while maintaining a glossy, shiny appearance. The textured sole structure may be further post-treated using a brush or roller device.

[0127] Next, with respect to Figure 4, the first region 35 and the second region 45 have a wavy shape and both include a polymer layer 30. The polymer layer 30 in the first region 35 has a different thickness and width compared to the polymer layer 30 in the second region 45.

[0128] As can be seen from Figure 4, the width of the second region 45 is smaller than the width of the first region 35. In particular, the surface area of ​​the first region 35 is three times that of the second region 45. As described just now in relation to the embodiment shown in Figure 3, the sole structure 10 shown in Figure 4 also has texture. The texture is provided by adding a silica-based or rubber-based material before curing the polymer. Furthermore, the surface of the polymer layer 30 is mechanically roughened using a device such as a pattern brush. As can be seen from Figure 4, the sole structure 10 maintains a shiny appearance and a glossy design.

[0129] Figure 5 shows detailed diagrams of three different sole structures 10 having different textures. Each sole structure 10 contains an additive, which results in unevenness on the surface of the sole structure 10. In addition, the sole structures 10 are mechanically roughened, resulting in a matte, rough appearance.

[0130] The appearance obtained from the sole structure 10 depends on the mechanical treatment applied. For example, mechanical treatment including the application of a pattern brush or roller may be used during post-processing.

[0131] In Figure 6, various embodiments of the sole structure 10 according to the present invention are tested in comparison to simple sole structures based on TPU and rubber materials.

[0132] As can be seen from Figure 6, the sole structure according to the present invention exhibits a higher friction value, expressed as "CoF" (coefficient of friction), than a simple TPU sole.

[0133] The relationship between normal force and frictional force is defined as the coefficient of friction (CoF). To determine the CoF of a sole structure, a sample of the sole structure according to the present invention is placed on a test surface and a given load corresponding to the normal force is applied. Subsequently, the surface is moved relative to the sample through a lateral force, which is measured as a frictional force. The measurement is performed using a footwear / shoe slip resistance tester.

[0134] In particular, the sole structure comprising a polymer layer 30 within the second region 45 achieves the highest CoF value and a 30% improvement in friction compared to conventional TPU soles. This demonstrates that the sole structure of the present invention provides a significant improvement in traction compared to conventional TPU soles.

[0135] Next, with respect to Figures 7a to 7c, these figures show embodiments of a sports shoe 20 or a part thereof equipped with the sole structure 10 according to the present invention.

[0136] In Figure 7a, the sports shoe 20 has a sole structure 10, and the base layer 40 is the midsole 65. The sports shoe 20 may be a running shoe 26. The first region 35 and the second region 45, arranged in a wave-like manner, provide a sinusoidal shape. The polymer layer 30 of the sports shoe 20 is located within the toe section 21, forefoot section 22, heel section 23, and midfoot section 24. It is also conceivable that the polymer layer 30 is located within the side wall section 27 and upper section 28 (not shown in Figure 7a) of the sports shoe 20.

[0137] As can be seen from the figure, the substantially vertical arrangement of the first region 35 and the second region 45 in the heel section 23 is tilted by approximately 10° relative to the longitudinal axis of the sole structure 10, unlike the arrangement of the first region 35 and the second region 45 in the toe section 21, the forefoot section 22, and the midfoot section 24.

[0138] The first region 35 and the second region 45 may have different arrangements and may be tilted by up to 35°, preferably 25°, more preferably 20°, even more preferably 20°, and most preferably 15° with respect to the longitudinal axis of the sole structure 10.

[0139] As can be seen from Figure 7b, the pattern 50 of the sole structure 10 has a linear pattern. In particular, the first region 35 and the second region 45 are arranged as lines in a vertical arrangement relative to the longitudinal axis of the sports shoe 20. The arrangement of the first region 35 and the second region 45 in the heel section is different from their arrangement in the toe section 21, forefoot section 22, and midfoot section 24. In particular, the first region 35 and the second region 45 have a contoured design. In other words, the pattern 50 of the sole structure is contoured. The contour includes a polymer layer 30 from the heel section and midfoot section 24 to the toe section 21.

[0140] In Figure 7c, the sports shoe 20 has an outsole based on a sole structure 10, which contains additives. Furthermore, the sole structure 10 is mechanically post-treated. The addition of silica-based and rubber-based materials, along with the mechanical post-treatment, results in a non-uniform surface of the sole structure 10 having a matte, rough design. Furthermore, the second region 45 obtained by post-treating the sole structure 10 comprises substantially the same amount of polymer layer 30 as the first region 35. In this embodiment, the surface area of ​​the first region 35 is at least twice the surface area of ​​the second region 45.

[0141] With respect to Figure 8, this figure shows a flowchart of method 1000 according to the present invention.

[0142] A method 1000 for manufacturing a sole structure 10, preferably for a sports shoe 20, comprises a first step 1010 of preparing a polymer. The polymer is TPU. The polymer may be made from polyurethane (PU), thermoplastic polyamide (TPE-A or TPA), thermoplastic polyester (TPE-E or TPE), thermoplastic styrene block copolymer (TPE-S or TPS), thermoplastic polyurethane (TPE-U or TPU), thermoplastic sulfide (TEP-V or TPV), rubber, or ethylene vinyl copolymer (EVA).

[0143] In the second step 1020, the solvent is prepared. The solvent is a mixture selected from the group of solvent-based solvents. The solvent may also be a mixture based on an aqueous solvent. The solvent is preferably a mixture selected from the group of solvent-based solvents, more preferably a mixture selected from the group of (C1-C6) ethers, (C1-C10) esters, (C1-C8) ketones, (C1-C8) alkanes, and / or combinations thereof.

[0144] In the next step 1030, the polymer is mixed with a solvent. In this way, a liquefied polymer is formed. The ratio of polymer to solvent in step 1030 is in the range of 10 to 90 wt.%. The ratio may preferably be 20 to 80 wt.%, more preferably 30 to 70 wt.%. Subsequently, the liquefied polymer is placed on the base layer in step 1040. When the liquefied polymer is placed, it has a kinematic viscosity coefficient of 10,000 to 50,000 mPa·s, preferably 20,000 to 40,000 mPa·s. Then, in step 1050, the placed liquefied polymer is cured on the base layer. Curing is carried out at a temperature between 20°C and 150°C. Curing is preferably carried out at 30°C to 100°C, more preferably 40°C to 50°C, and the curing time is between 2 minutes and 750 minutes, preferably between 5 minutes and 390 minutes, more preferably between 10 minutes and 30 minutes.

[0145] In this way, the sole structure is provided in step 1060 having a pattern comprising first and second regions. The arrangement of the liquefied polymer in step 1050 provides an alternating arrangement of the first region 35 and the second region 45, such that the longitudinally extended portions of the first region 35 and the second region 45 are substantially perpendicular to the longitudinal axis of the sole structure.

[0146] In addition, or instead, the surface area of ​​the first region 35 is at least twice the surface area of ​​the second region 45.

[0147] Method 1000 further comprises a texturing step 1070, which occurs prior to step 1050, in which the liquefied polymer is cured. The texturing step 1070 comprises adding additives, or, in addition, mechanically post-treating the cured polymer.

[0148] In addition, or instead, the pattern is obtained by post-processing the cured polymer in step 1080. Post-processing 1080 includes laser treatment. In this way, the second region 45 is provided by post-processing the sole structure 10.

[0149] It should be noted that, as will be understood by those skilled in the art, the embodiments and / or examples described above may be combined with further embodiments as described herein, and details of the embodiments and / or examples may be omitted. The scope of protection is defined by the claims and is not limited by the embodiments and / or examples disclosed in the above figures. [Explanation of Symbols]

[0150] 10. Sole structure 20 Sports Shoes 21 Toe Section 22 Forefoot Section 23 Heel Section 24 Midfoot Section 26 Running Shoes 27 Side wall section 28 Upper Section 30 Polymer layer 35. First Domain 40 Base Layer 45. Second Domain 50 patterns 65 Midsole 1000 ways 1010 Steps 1020 steps 1030 steps 1040 steps 1050 steps 1060 steps 1070 steps 1080 steps

Claims

1. a. Base layer, and b. Polymer layers arranged in a specific pattern on the side of the base layer facing the ground. A sole structure comprising, The pattern comprises one or more first regions and one or more second regions. The one or more second regions have a thinner thickness than the one or more first regions, The pattern comprises an alternating arrangement of a first region and a second region, wherein the longitudinal extensions of the first region and the second region are substantially perpendicular to the longitudinal axis of the sole structure, and / or A sole structure in which the surface area of ​​the first region is at least twice the surface area of ​​the second region.

2. The sole structure according to claim 1, wherein the polymer layer in one or more first regions has a thickness of 0.1 mm to 0.9 mm.

3. The sole structure according to claim 1, wherein the polymer layer in one or more second regions has a thickness of 0 mm.

4. The sole structure according to claim 1, wherein the pattern is a grid, lattice, line, spiral, honeycomb, dot, wave, sinusoidal pattern, or any combination thereof.

5. The sole structure according to claim 1, wherein each of the one or more first regions contains a larger amount of polymer than each of the one or more second regions.

6. The sole structure according to claim 1, wherein the surface area of ​​the one or more first regions is at least 2.5 times the surface area of ​​the one or more second regions.

7. The pattern comprises an alternating arrangement of a first region and a second region, wherein the longitudinal extensions of the first region and the second region are substantially perpendicular to the longitudinal axis of the outsole. The first region has a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension portion of at least 1.0 mm, and / or The second region has a length, thickness, and / or width in a direction substantially perpendicular to the longitudinal extension portion of at least 0.2 mm, The sole structure according to claim 1.

8. The sole structure according to claim 1, wherein the polymer in the polymer layer is from the group consisting of polyurethane (PU), thermoplastic polyamide (TPE-A or TPA), thermoplastic polyester (TPE-E or TPE), thermoplastic styrene block copolymer (TPE-S or TPS), thermoplastic polyurethane (TPE-U or TPU), thermoplastic vulcanized product (TPE-V or TPV), rubber or ethylene vinyl copolymer (EVA), and / or combinations thereof.

9. The sole structure according to claim 1, wherein the one or more first regions and the one or more second regions have a wavy shape.

10. The sole structure according to claim 9, wherein the wavy shape has an amplitude of at least 1 mm and / or up to 9 mm.

11. The sole structure according to claim 9 or 10, wherein the wavy shape substantially corresponds to a sine wave.

12. The sole structure according to claim 9 or 10, wherein the wavy shape has a wavelength of at least 2 mm and / or up to 14 mm.

13. The sole structure according to claim 9 or 10, wherein the ratio of amplitude to wavelength is at least 0.1:4 and / or at most 3:0.

5.

14. The sole structure according to claim 1, wherein the pattern is a linear pattern, the width of the first region of the one or more first regions is at least 1 mm, and / or the second region of the one or more second regions is at least 0.3 mm wide.

15. The sole structure according to claim 1, wherein the shoe is a running shoe.

16. The sole structure according to claim 1, wherein the base layer is the midsole or a part thereof of a sports shoe.

17. The sole structure according to claim 1, wherein the polymer layer is arranged in one or more sections corresponding to sections of a sports shoe, including a toe section, a forefoot section, a heel section, a midfoot section, a sidewall section, and / or an upper section.

18. A sports shoe comprising the sole structure described in claim 1 or 9.

19. The sports shoe according to claim 18, wherein the sports shoe is a running shoe.

20. A method for manufacturing a sole structure, a. Steps to prepare the polymer, b. The step of preparing the solvent, c. The step of forming a liquefied polymer by mixing the polymer and the solvent, d. The step of placing the liquefied polymer of step c) onto the base layer, e. A step of curing the liquefied polymer placed on the base layer, f. The step of thereby providing the sole structure with a pattern comprising one or more first regions and one or more second regions, Includes, In step d), the liquefied polymer is placed on the base layer in the pattern, and / or, after step e), the pattern is obtained by post-processing the cured polymer, and, The arrangement of the liquefied polymer provides an alternating arrangement of the first region and the second region, such that the longitudinal extensions of the first region and the second region are substantially perpendicular to the longitudinal axis of the sole structure, and / or A method wherein the surface area of ​​the first region is at least twice the surface area of ​​the second region.

21. The method according to claim 20, further comprising a texturing step, the texturing step occurring prior to the step of curing the liquefied polymer, and the texturing step comprising adding additives and / or mechanically post-treating the cured polymer.

22. The method according to claim 20, further comprising the step of mechanically post-treating the cured polymer.

23. The method according to claim 20, wherein the post-processing of the cured polymer includes laser treatment.

24. The method according to claim 20, wherein the solvent is a mixture selected from the group consisting of solvent-based solvents and / or aqueous solvents and / or combinations thereof.

25. The method according to claim 20, wherein in step e), the curing is carried out at a temperature between 20°C and 150°C.

26. The method according to claim 20, wherein in step c), the ratio of the polymer in the mixture to the solvent is in the range of 10 to 90 wt.%.

27. The method according to claim 20, wherein step c) arranging the liquefied polymer on the base layer is performed with a kinematic viscosity coefficient of 10,000 to 50,000 mPa·s.

28. The method according to claim 20, wherein the outsole is a sole structure according to any one of claims 1 to 19.

29. An outsole obtained by the method according to any one of claims 20 to 28.

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