초록 ▼

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 u

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.

대표청구항 ▼

[ What is claimed is:] [1.] An electrically conductive elastomeric foam comprising:an elastomeric foam;electrically conductive PAN fibers carbonized at least 99% dispersed within said foam, said fibers being present in an amount effective to render said elastomeric foam electrically conductive, such

[ What is claimed is:] [1.] An electrically conductive elastomeric foam comprising:an elastomeric foam;electrically conductive PAN fibers carbonized at least 99% dispersed within said foam, said fibers being present in an amount effective to render said elastomeric foam electrically conductive, such that the volume resistivity of said electrically conductive foam is less th an 1.times.10.sup.6 ohm-cm.