Method for making stretch leather composites and articles containing the same
US10563273B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Dec 14, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC14B2700/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making stretch leather composites is provided. The method includes providing a semi-finished leather. The semi-finished leather is split to obtain a final split having a thickness of from 0.10 mm to about 1.25. The final split is dried to obtain a crust. The crust is laminated with a stretch fabric impregnated with a stiffener, e.g., starch, to prepare a laminate. The starch is removed from the stretch fabric after preparing the laminate, for example, by dissolving the starch in a liquid solution naturally present in another laminate processing step liquid. Laminating the crust can include the use of an adhesive. A method of manufacturing an article of footwear can include providing a stretch leather composite, cutting the stretch leather composite to conform to a predetermined shape, and manufacturing the footwear using the stretch leather composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.