Leather with a finish on the buffed surface, and process for producing a leather of this type
US6177198A · kind A · utility
Inventor
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31558
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The leather has a finish on a buffed surface. The finish layer is formed in a plurality of layers including an outer layer with a given hardness and a particular surface effect preformed in a hot substrate having a structure corresponding to the particular surface effect the outer layer being formed of a solidified, cross-linked, hydrolysis-resistant, lightfast, polyurethane-containing dispersion, and having a thickness of between 0.01 and 0.08 mm, and an inner layer bonded to the buffed surface leather and comprising a solidified, highly crosslinked, hydrolysis-resistant, lightfast, polyurethane-containing dispersion and having a hardness less than a hardness of the outer layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.