Plastic component and shoe

Patent metadata

Field	Value
Publication number	US-11470913-B2
Application number	US-202016838242-A
Country	US
Kind code	B2
Filing date	Apr 2, 2020
Priority date	Feb 5, 2015
Publication date	Oct 18, 2022
Grant date	Oct 18, 2022

Abstract

Described are methods for manufacturing a plastic component, in particular a cushioning element for sports apparel, a plastic component manufactured with such methods, for example a sole or a part of a sole for a shoe, and a shoe with such a sole. The method for the manufacture of a plastic component includes loading a mold with a first material includes particles of an expanded material and fusing the surfaces of the particles by supplying energy. The energy is supplied in the form of at least one electromagnetic field.

First claim

That which is claimed is:

1. A plastic component comprising a first material comprising particles of an expanded material, wherein the surfaces of the particles are fused to one another through application of energy in the form of at least one electromagnetic field; wherein the plastic component is a cushioning element for sports apparel; and wherein the first material comprising particles of an expanded material further comprises a chain extender.

2. The plastic component of claim 1 , wherein the particles comprise an energy absorbing material, which absorbs the energy supplied by the at least one electromagnetic field such that the energy absorbing material contributes to the fusing of the surfaces of the particles.

3. A shoe with the cushioning element according to claim 1 .

4. The plastic component of claim 1 , wherein the particles comprise one or more of the following materials: expanded thermoplastic polyurethane (“eTPU”), expanded polyamide (“ePA”), expanded polyetherblockamide, (“ePEBA”), polylactide (“PLA”), polyether-block-amide (“PEBA”), polyethylene terephthalate (“PET”), polybutylene terephthalate (“PBT”), and thermoplastic polyester ether elastomer (“TPEE”).

5. A plastic component comprising a first material comprising particles of an expanded material, wherein the surfaces of the particles are fused to one another through application of energy in the form of at least one electromagnetic field, wherein the particles are randomly arranged; and wherein the first material comprising particles of an expanded material further comprises a chain extender.

6. The plastic component of claim 1 , wherein the particles comprise one or more of the following materials: polyamides, polyesters, polyetherketones, polyolefins, or combinations thereof.

7. The plastic component of claim 6 , wherein the polyamide comprises at least one of a homopolyamide, copolyamide, polyetherblockamide, a polyphthalamide, or combinations thereof.

8. The plastic component of claim 6 , wherein the polyetherketone comprises at least one of polyether ketone (PEK), polyether ether ketone (PEEK), polyetherketoneketone (PEKK), or combinations thereof.

9. The plastic component of claim 6 , wherein the polyolefin comprises at least one of polypropylene (PP), polyethylene (PE), olefin co-block polymer (OBC), polyolefine elastomer (POE), polyethylene co-vinyl acetate (EVA), polybutene (PB), polyisobutylene (PM), or combinations thereof.

10. The plastic component of claim 1 , wherein the particles comprise at least one of polyoxymethylene (POM), polyvinylidene chloride (PVCD), polyvinylalcohol (PVAL), polylactide (PLA), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF), tetrafluoroethylene (FEP), ethylene-tetrafluoroethylene (ETFE), polyvinylfluoride (PVF), perfluoroalkoxy (PFA), thermoplastic polyurethanes (TPU), or combinations thereof.

11. The plastic component of claim 1 , wherein the chain extender comprises a styrene-acrylate copolymer containing reactive epoxy groups.

12. The plastic component of claim 1 , wherein the particles comprise polybutylene terephthalate (PBT) and the chain extender comprises polymeric material containing epoxy groups, pyromellitic dianhydride, styrene maleic anhydride, or combinations thereof.

13. The plastic component of claim 1 , wherein the particles comprise polyamide (PA) or polyether-block-amide (PEBA) and the chain extender comprises at least one selected from a polymeric material containing epoxy groups, pyromellitic dianhydride, styrene maleic anhydride, or combinations of one or more thereof.

14. The plastic component of claim 1 , wherein the particles comprise thermoplastic polyester ether elastomer (TPEE) and the chain extender comprises at least one selected from a polymeric material containing epoxy groups, pyromellitic dianhydride, styrene maleic anhydride, or combinations of one or more thereof.

15. A plastic component comprising a first material comprising particles of an expanded material, wherein the surfaces of the particles are fused to one another through application of energy in the form of at least one electromagnetic field, further comprising a second material, wherein the first material comprising particles of an expanded material comprises a chain extender.

16. The plastic component of claim 15 , wherein the second material comprises particles of an expanded material.

17. The plastic component of claim 15 , wherein the second material comprises particles eTPU, ePA, ePEBA, PLA, PEBA, PET, PBT, TPEE, or combinations thereof.

18. The plastic component of claim 16 , wherein the particles of the second material are randomly arranged.

Assignees

• Adidas Ag

Inventors

• Le Tru Huu Minh
• Holmes Christopher Edward
• Robertson Christopher
• Kurtz Maximilian Philipp
• Romanov Victor

Classifications

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• B29K2105/251

  Particles, powder or granules (expandable particles B29K2105/046) · CPC title

• C08J2367/04

  Polyesters derived from hydroxy carboxylic acids, e.g. lactones (C08J2367/06 takes precedence) · CPC title

• A43B5/06 Primary

  Running shoes; Track shoes · CPC title

• B29C2035/0855

  using microwave · CPC title