Sheet material
US4229472A · kind A · utility
11Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1978 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Feb 24, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/674
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Upholstery material and shoe upper material made from a base sheet of criss-crossing elastomeric polyurethane fibers running parallel to the surfaces of the sheet, said fibers being bonded together at their points of contact. In one preferred form the product has a preformed skin whose thickness is less than about 100 microns and preferably less than about 50 microns, such as about 20 to 40 microns and the skin is joined to the fibers of the base sheet by spaced fingers of a binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.