Cushioning material for forming press
US6514888B1 · kind B1 · utility
7Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1997 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3829
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A cushioning material for forming press includes fiber material layers 31 and 32 superimposed with a bonding material layer 30 interposed, an upper rubber layer 33 positioned on an upper surface of one fiber material layer 31, a lower rubber layer 34 positioned on a lower surface of the other fiber material layer 32, an upper exudation preventing layer 35 positioned on an upper surface of the upper rubber layer 33, and a lower exudation preventing layer 36 positioned on a lower surface of the lower rubber layer 34.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.