Elastomeric pre-stretched tubes for providing electrical stress control
AssigneeMinnesota Mining and Manufacturing Company
InventorPaul N. Nelson
Life of this patent
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Abstract
An elastomeric pre-stretched tubular member comprising from about 2.5 to about 25 volume percent carbon black, from about 0.8 to about 3.0 volume percent of platelet-shaped conductive particles, and optionally high permittivity inorganic fillers and platelet-shaped inorganic dielectric fillers, with the balance being the compounded elastomeric component.
Claims10
An article for use in the splicing and termination of electric power cables comprising an elastomeric tubular member supported in a stretched condition on an easily removable core, said tubular member comprising from about 2.5 to about 25 volume percent carbon black, from about 0.8 to about 3.0 volume percent of platelet-shaped conductive particles, up to about 8.0 volume percent of high permittivity inorganic fillers, up to about 12.0 volume percent of platelet-shaped inorganic dielectric fillers, the balance of said member comprising a compounded non-polar elastomer selected from the group consisting of EPDM and EPM.
Dependencies are inferred from the claim text.