Metallized sheet form textile microwave screening material, and the method of use

US4439768A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Harold Ebneth · Leverkusen, DE
• Hans G. Fitzky · Odenthal, DE

Key dates

• Filing date: Jul 7, 1981
• Grant date: Mar 27, 1984
• Expiry date: Jul 7, 2001

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K9/0084
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Metallized sheet-form textiles of synthetic polymers or natural fibres to which a metal layer has been applied by wet-chemical currentless deposition are particularly suitable for screening electromagnetic waves in the range from 10 MHz to 1000 GHz. Since the textile properties are substantially unaffected by the metallization, the sheet-form textiles are particularly suitable for use in the medical and communications fields. A multiple-layer construction with insulating intermediate layers and surface linings may be useful, for example in the screening of relatively low frequencies.