Production of polyurethane-split leather laminate
US4218505A · kind A · utility
9Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1977 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Mar 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31562
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A polyurethane top coating and a porous, polyurethane interposing layer are formed on a release carrier sheet. Split leather hide is bonded onto the porous layer with a compatible adhesive and the release carrier sheet is stripped from the top coat. The resultant laminate has the appearance and other properties of top-grain leather. The interposing porous layer functions as a cushion and prevents uneven deformation of top coat when the laminate is folded or stretched.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.