초록 ▼

A flexible electrically conducting cloth is described which comprises a plurality of intermingled or interwoven refractory fibers the sheet resistance of which exceeds 1,000 ohms per square inch and a conducting coating encapsulating a majority of the fibers, the coating including at least about 70

A flexible electrically conducting cloth is described which comprises a plurality of intermingled or interwoven refractory fibers the sheet resistance of which exceeds 1,000 ohms per square inch and a conducting coating encapsulating a majority of the fibers, the coating including at least about 70 atomic percent carbon and being applied in sufficient quantity to render the cloth electrically conducting with a sheet resistance which lies between about 0.1 ohm per square inch and about 1,000 ohms per suqare inch. The cloth is useful as an electrical resistance heater, an electromagnetic shield, an electromagnetic reflector, or as an antenna. It is formulated by contacted substantially the entire surfaces of the intermingled or interwoven fibers with a carbon containing precursor, the fibers being at a temperature between about 700°C. and 1200°C., whereby the fibers are covered with a pyrolyzed coating formed from the precursor in an amount of at least about 0.001 weight percent. The cloth may be laminated between plastic sheets or imbedded in a plastic matrix.

대표청구항 ▼

A flexible electrically conducting cloth, comprising: a plurality of intermingled or interwoven fibers of a refractory material the sheet resistance of which exceeds 1,000 ohms per square; and a conducting coating encapsulating a majority of the fibers, said coating including at least about 70 atomi

A flexible electrically conducting cloth, comprising: a plurality of intermingled or interwoven fibers of a refractory material the sheet resistance of which exceeds 1,000 ohms per square; and a conducting coating encapsulating a majority of the fibers, said coating including at least about 70 atomic percent carbon, the coating being applied in sufficient quantity to render the cloth electrically conducting with a sheet resistance which lies between about 0.1 ohm per square and about 1,000 ohms per square.