Article of footwear with soil-shedding performance
The disclosure relates to articles of footwear ( 100 ) and components thereof, including outsoles ( 112 ), which can be used in conditions normally conducive to the accumulation of soil on the outsoles ( 112 ). In particular, the disclosure relates to articles of footwear ( 100 ) and components thereof including an outsole ( 112 ) with a material ( 116 ) including a polymeric network formed of a plurality of polymer chains, where the material ( 116 ) defines external ground-facing surface or side of the outsole ( 112 ). The outsoles ( 112 ) can prevent or reduce the accumulation of soil on the footwear ( 100 ) during wear on unpaved surfaces such as sporting fields.
1. An outsole for an article of footwear, the outsole comprising:
a first surface of the outsole configured to be ground-facing; and a second surface of the outsole opposing the first surface, the second surface of the outsole configured to be secured to an upper for an article of footwear; wherein the outsole comprises a material defining at least a portion of the first surface, and the material comprises a crosslinked polymeric network, wherein the crosslinked polymeric network comprises crystalline regions and amorphous hydrophilic regions, and wherein the crystalline regions are covalently bonded to the amorphous hydrophilic regions, wherein the amorphous hydrophilic regions are present in the crosslinked polymeric network at a ratio of at least 20:1 by weigh relative to the crystalline regions, and wherein the outsole comprises one or more traction elements on the first surface.
2. The outsole of claim 1 , wherein the amorphous hydrophilic regions are covalently bonded to the crystalline regions through carbamate linkages.
3. The outsole of claim 1 , wherein a ratio of the amorphous hydrophilic regions to the crystalline regions ranges from 20:1 to 110:1 by weight.
4. The outsole of claim 1 , wherein the crosslinked polymeric network is a physically crosslinked polymer network.
5. The outsole of claim 1 , wherein the crosslinked polymeric network includes carbamate linkages.
6. The outsole of claim 1 , wherein each of the one or more traction elements comprises a terminal edge, and wherein the material is not present on the terminal edges of any of the one or more traction elements.
7. The outsole of claim 1 , wherein one or more of the traction elements is selected from the group consisting of: a cleat, a stud, a spike, and a lug.
8. The outsole of claim 1 , wherein the traction elements are integrally formed with the outsole.
9. The outsole of claim 1 , wherein the traction elements are removable traction elements.
10. An article of footwear comprising the outsole of claim 1 and an upper for an article of footwear secured to the second surface of the outsole.
11. The article of footwear of claim 10 , wherein each of the one or more traction elements comprises a terminal edge, and wherein the material is not present on the terminal edges of any of the one or more traction elements.
12. The article of footwear of claim 10 , wherein one or more of the traction elements is selected from the group consisting of: a cleat, a stud, a spike, and a lug.
13. The article of footwear of claim 10 , wherein the traction elements are integrally formed with the outsole.
14. The article of footwear of claim 10 , wherein the traction elements are removable traction elements.
15. A method of manufacturing an article of footwear, the method comprising:
providing an outsole according to claim 1 , providing an upper; and
securing the outsole and the upper to each other such that the material defines a ground-facing surface of the article of footwear.
16. The method of claim 15 , wherein the material is a thermoplastic material, wherein the outsole further comprises a backing substrate, and wherein the material is secured to the backing substrate by co-extruding the material and the backing substrate.
17. The method of claim 15 , wherein each of the one or more traction elements comprises a terminal edge, and wherein the material is not present on the terminal edges of any of the one or more traction elements.
18. The method of claim 15 , wherein one or more of the traction elements is selected from the group consisting of: a cleat, a stud, a spike, and a lug.
19. The method of claim 15 , wherein the traction elements are integrally formed with the outsole.
20. The method of claim 15 , wherein the traction elements are removable traction elements.