Leather and process for its production
US6746774B1 · kind B1 · utility
3Cited by
8References
11Claims
0Family size
Inventor
Key dates
| Filing date | Sep 5, 2000 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | May 15, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31558
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
In order to provide leather with the desired cushioning properties and desirable soft handling properties, especially a grained leather with a grain structure on its upper surface, or a split leather with a surface finish, even if this leather is of minimal thickness, a foam layer is created on the non-visible underside surface of the leather. This foam layer is formed by applying a liquid plastic material containing means to create the foam and is subsequent solidified by removal of the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.