Foam ionomer compositions and uses thereof
US10982067B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2018 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | May 21, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2431/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Components for articles of footwear and athletic equipment are provided including a foam. A variety of foams and foam components are provided. The articles include a composition having a foam structure, wherein the composition includes an ionomeric polymer and a plurality of cations, wherein the ionomeric copolymer is crosslinked by the cations. The crosslinks are ionic, so in some aspects the composition is free or essentially free of any covalent crosslinks between the ionomers. In particular, midsoles including the foams are provided for use in an article of footwear. Methods of making the compositions and foams are provided, as well as methods of making an article of footwear including one of the foam components. In some aspects, the foams and foam components can be made by injection molding or injection molding followed by compression molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.