Metallized sheet form textile material and method of making same

US4420757A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Jul 6, 1981
• Grant date: Dec 13, 1983
• Expiry date: Jul 6, 2001

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q15/20
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Metallized sheet-form textile materials of synthetic polymers or natural fibres, to which a metal layer has been applied by currentless wet-chemical deposition, are particularly suitable for use as reflectors for electromagnetic waves in the range from 10 MHz to 1000 GHz. In the case of stretched metallized fabrics, the reflecting radiation is partly polarized which can facilitate or improve the recognition of an object by radar beams. By periodically stretching and relaxing the fabric, it is even possible to modulate the reflected microwaves.