Heat-shrinkable articles having non-linear electrical resistance

Details Heat-shrinkable articles having non-linear electrical resistance Heat-shrinkable articles having non-linear electrical resistance

1973-08-31

1976-04-13

Askin, Laramie E.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

138137, 156 86, 174 73R, 174DIG8, 252516, 338314, 428 36, 428331, 428451, 428519, 428913, H01B 104, B32B 108, B32B 516, B32B 702

Patent

active

039506045

ABSTRACT:
A polymer composition containing silicon carbide of a critical maximum average particle size can be processed into heat-shrinkable articles possessing nonlinear electrical resistance characteristics. An embodiment of the invention provides a heat-shrinkable article comprising a laminate of a layer of elastomer, including silicon carbide particles, and a layer of a heat-shrinkable polymeric material. The elastomeric layer may be a blend of a rubbery polymer and a low density polyethylene having dispersed therein particulate silicon carbide of particle size finer than about 300 grit.

REFERENCES:
patent: 3210460 (1965-10-01), Suelmann
patent: 3210461 (1965-10-01), Berg et al.
patent: 3412200 (1968-11-01), Virsberg et al.
patent: 3576387 (1971-04-01), Derby

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