Electrically conductive building material
US5908584A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/924
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An electrically conductive material used for shielding against electromagnetic waves and comprising a binder, a mixture of graphite and amorphous carbon, and sand. It has been shown that this mixture has enhanced shielding properties, particularly in the 100 MHZ range. The graphite/carbon mixture preferably makes up 25-75% of the total weight of the material. The binder may be cementitious. Said material may also be used in conductive floors, electrical heating equipment, light conductors, heating elements, ground connections, resistors, capacitors and antennas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.