Electrically conductive fiber filled elastomeric foam

Compositions – Electrically conductive or emissive compositions – Elemental carbon containing

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Details

252510, 252503, 252507, 252506, 4283044, 4283084, 4283191, C08J 900, C08K 704, C08L 2100, H01B 120

Patent

active

058558187

ABSTRACT:
An electrically conductive elastomeric foam is presented. Preferably, the elastomeric foam comprises polyurethane foam and in accordance with an important feature of this invention, the elastomeric foam is rendered electrically conductive by incorporating therein electrically conductive fibers. As used herein, a "fiber" has a diameter greater than or equal to one micron, and an aspect ratio (length/diameter) greater than or equal to fifteen. In accordance with the method of the present invention, the elastomeric foam is prepared from a polyurethane stock comprised of a polyhydroxyl compound, an organic polyisocyanate compound, a catalyst, a foam stabilizer and an amount of electrically conductive fiber which is effective to render the elastomeric foam electrically conductive. The conductive foam of this invention finds particular utility in the manufacture of conductive soling in footwear, conductive rollers and the like for use in electrophotographic equipment as well as in electrostatic dissipative and EMI/RFI shielding applications.

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