Patent · US Expired

Electrically conductive building material

US5908584A · kind A · utility

23Cited by
4References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 25, 1997
Grant dateJun 1, 1999
Priority date
Expiry dateFeb 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.