Conductive rubber antennas having improved physical and electric

Details Conductive rubber antennas having improved physical and electric Conductive rubber antennas having improved physical and electric

1978-10-30

1981-01-20

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

Conductive carbon containing

252511, 264157, 264297, 343715, C04B 3500

Patent

active

042462177

ABSTRACT:
A radio antenna is made of conductive rubber. Uncured rubber is doped with conductive high structure carbon black in proportions greater than normally required to attain the desired volume resistivity. The doped rubber is milled at high shear until the standard deviation of volume resistivity is reduced below a predetermined value in the finished antennas. A copper-containing metallic stud is embedded in at least one end of the uncured antennas and is bonded to the rubber by vulcanization during curing of the rubber. The antenna has improved physical properties, uniformity of volume resistivity, and reduced resistivity variation with stress.

REFERENCES:
patent: 1092883 (1914-04-01), Wieland
patent: 3573122 (1971-03-01), Olstowski
patent: 3673121 (1972-06-01), Meyer
patent: 3689618 (1972-09-01), Chadwick
patent: 4103385 (1978-08-01), Porter
patent: 4134120 (1979-01-01), DeLoach

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