Aramid filament yarn provided with a conductive finish
US7438975B2 · kind B2 · utility
3Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Sep 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2938
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention pertains to an aramid filament yarn provided with a finish comprising >1.5 wt. % of an organic substance with a conductivity of >4 mS/cm, measured as a 50 wt. % finish composition in water at 20° C., having a specific electric resistance of the yarn <2.5·104 Ohm·cm, and to a method of making said yarn. Further, the invention pertains to the use of said finish for making conductive cables, particularly for making elevator cables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.