Paper machine felts
US5164251A · kind A · utility
5Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Sep 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3724
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a felt for use in papermaking machines showing enhanced resistance to degradation in the presence of peroxide which felt comprises a woven base and a sheet contracting layer attached thereto characterized in that at least one of said layer and said woven base comprises fibers of polyamide 12, 12 found by extrusion of a melt of polyamide 12, 12 having intrinsic viscosity of not less than 0.65 dl/gram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.