Improved soles and insoles for shoes, in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first and a second surface region is provided. The first surface region comprises expanded thermoplastic polyurethane (“TPU”). The second sur
Improved soles and insoles for shoes, in particular sports shoes, are described. In an aspect, a sole for a shoe, in particular a sports shoe, with at least a first and a second surface region is provided. The first surface region comprises expanded thermoplastic polyurethane (“TPU”). The second surface region is free from expanded TPU.
대표청구항▼
1. A sole for a shoe comprising: a first component and a second, separately formed, component, wherein the first component and the second component are combined to form at least a portion of the sole;wherein the first component comprises at least a first surface region of the sole, and the second co
1. A sole for a shoe comprising: a first component and a second, separately formed, component, wherein the first component and the second component are combined to form at least a portion of the sole;wherein the first component comprises at least a first surface region of the sole, and the second component comprises at least a second surface region of the sole;wherein the first surface region comprises expanded thermoplastic polyurethane in the form of expanded thermoplastic polyurethane particles, wherein adjacent expanded thermoplastic polyurethane particles are directly bonded to one another at their surfaces to form a granular but closed plastic foam structure, wherein the closed plastic foam structure of the first surface region of the sole is free of gaps passing therethrough;wherein the first surface region comprises greater cushioning properties than the second surface region;wherein the second surface region is free from expanded thermoplastic polyurethane and is arranged along at least a portion of an outer rim of the sole; andwherein the second surface region is stiffer than the first surface region such that, under shear, the second surface region increases stability of the first surface region. 2. The sole according to claim 1, wherein the second surface region comprises at least one of foamed ethylene-vinyl acetate, non-expanded thermoplastic polyurethane, rubber, polypropylene, polyamide, polystyrene, and expanded polypropylene. 3. The sole according to claim 1, wherein the first surface region is arranged in at least one of a midfoot region and a forefoot region of the sole. 4. The sole according to claim 1, wherein the sole comprises a third surface region comprising expanded thermoplastic polyurethane in the form of expanded thermoplastic polyurethane particles, wherein adjacent expanded thermoplastic polyurethane particles are directly bonded to one another at their surfaces to form a granular but closed plastic foam structure. 5. The sole according to claim 4, wherein the first surface region is arranged in a heel region of the sole and wherein the third surface region is arranged in at least one of a midfoot region and a forefoot region of the sole. 6. The sole according to claim 1, wherein at least the first surface region is at least partially surrounded by a foil. 7. The sole according to claim 1, wherein the sole has a weight of less than about 100 g. 8. A shoe comprising the sole according to claim 1. 9. A shoe comprising the sole according to claim 1, further comprising an insole, wherein the insole comprises expanded thermoplastic polyurethane in the form of expanded thermoplastic polyurethane particles, wherein adjacent expanded thermoplastic polyurethane particles are directly bonded to one another at their surfaces to form a granular but closed plastic foam structure. 10. The shoe according to claim 9, wherein the insole is at least partially surrounded by a foil. 11. The sole according to claim 9, wherein the particles comprise a diameter of about 0.5 mm to about 25 mm. 12. The sole according to claim 1, wherein the particles comprise a diameter of about 0.5 mm to about 25 mm. 13. The sole according to claim 1, wherein the expanded thermoplastic polyurethane particles have a substantially elliptical or spherical shape. 14. A sole for a shoe comprising: a first component, a second component, and a third component, wherein the third component is separately formed from the first component and the second component;wherein the third component is combined with the first component and the second component to form at least a portion of the sole;wherein the first component comprises at least a first partial region of the sole, the second component comprises at least a second partial region of the sole, and the third component comprises at least a third partial region of the sole;wherein the first partial region comprises first expanded thermoplastic polyurethane in the form of first expanded thermoplastic polyurethane particles, wherein adjacent first expanded thermoplastic polyurethane particles are directly bonded to one another at their surfaces to form a granular but closed plastic foam structure, wherein the closed plastic foam structure of the first partial region of the sole is free of gaps passing therethrough; andwherein the second partial region comprises second expanded thermoplastic polyurethane in the form of second expanded thermoplastic polyurethane particles, wherein adjacent second expanded thermoplastic polyurethane particles are directly bonded to one another at their surfaces to form a granular but closed plastic foam structure, wherein the closed plastic foam structure of the second partial region of the sole is free of gaps passing therethrough;wherein the first and second partial regions comprise greater cushioning properties than the third partial region;wherein the third partial region is free from expanded thermoplastic polyurethane and is arranged along at least a portion of an outer rim of the sole;wherein the third partial region is stiffer than the first and second partial regions such that, under shear, the third partial region increases stability of the first and second partial regions; andwherein the first expanded thermoplastic polyurethane particles are manufactured from at least one of a different steaming process or a different base material from the second expanded thermoplastic polyurethane particles. 15. The sole according to claim 14, wherein the first expanded thermoplastic polyurethane particles comprise a first particle size, and the second expanded thermoplastic polyurethane particles comprise a second particle size that differs from the first particle size. 16. The sole according to claim 14, wherein at least one of the first partial region and the second partial region is at least partially surrounded by a foil. 17. The sole according to claim 14, wherein the first partial region comprises a first sole layer and the second partial region comprises a second sole layer. 18. The sole according to claim 17, wherein the sole comprises a third sole layer that is free from expanded thermoplastic polyurethane. 19. The sole according to claim 18, wherein the third sole layer comprises at least one of foamed ethylene-vinyl acetate, non-expanded thermoplastic polyurethane, rubber, polypropylene, polyamide, polystyrene, and expanded polypropylene. 20. A shoe comprising the sole according to claim 14. 21. The sole according to claim 14, wherein at least a first portion of the first partial region is exposed. 22. The sole according to claim 21, wherein at least a first portion of the second partial region is exposed. 23. The sole according to claim 14, wherein the first expanded thermoplastic polyurethane particles and the second expanded thermoplastic polyurethane particles have a substantially elliptical or spherical shape. 24. A sole for a shoe comprising: a first component and a second, separately formed, component, wherein the first component and the second component are combined to form at least a portion of the sole;wherein the first component comprises at least a first surface region of the sole, and the second component comprises at least a second surface region of the sole;wherein the first surface region comprises expanded thermoplastic polyurethane particles, each expanded thermoplastic polyurethane particle having an outer surface enclosing an internal foam structure, and wherein the first surface region comprises a closed plastic foam structure having adjacent expanded thermoplastic polyurethane particles directly bonded to one another at their surfaces, wherein the closed plastic foam structure of the first surface region of the sole is free of gaps passing therethrough;wherein the first surface region comprises greater cushioning properties than the second surface region;wherein the second surface region is free from expanded thermoplastic polyurethane and is arranged along at least a portion of an outer rim of the sole; andwherein the second surface region is stiffer than the first surface region such that, under shear, the second surface region increases stability of the first surface region.
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