Patent · US Expired

Composite material for shielding against electromagnetic radiation

US4435465A · kind A · utility

36Cited by

6References

20Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Harold Ebneth · Leverkusen, DE
Hans G. Fitzky · Odenthal, DE
Wolfgang Oberkirch · Leverkusen, DE

Key dates

Filing date	Jun 11, 1981
Grant date	Mar 6, 1984
Priority date	—
Expiry date	Jun 11, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T442/655
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A composite material comprising a polymer matrix containing metallized sheet-form textiles and/or metallized particles, and in addition additives for increasing the ohmic, electrical and/or magnetic losses which are uniformly present in the polymer and/or on the sheet-form textiles and/or particles, has a high shielding effect against electromagnetic radiation both in the short-range field and also in the long-range field over a wide frequency range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.