Carbon filled irradiation cross-linked polymeric insulation for

Details Carbon filled irradiation cross-linked polymeric insulation for Carbon filled irradiation cross-linked polymeric insulation for

1981-09-03

1983-05-24

Bleutge, John C.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

2041592, 524496, 428383, 428390, B32B 2716, C08J 328

Patent

active

043849440

ABSTRACT:
Insulation for an electric power cable, and a power cable including such insulation, the insulation having an improved dielectric strength and being irradiation cross-linked polymeric material having mixed therewith carbon black having a particle size in the range from about 200 to about 500 millimicrons, the carbon black content being about 10% to about 40% of the weight of the mixture of carbon black and the polymeric material. Also, the cable insulation may be layers of different density polyethylene, at least one of the layers being the described mixture of polyethylene and carbon black.

REFERENCES:
patent: 3096210 (1963-07-01), Boonstra
patent: 3133894 (1964-05-01), Boonstra
patent: 3325325 (1967-06-01), Ward
patent: 3529340 (1970-09-01), Polizzano et al.
patent: 3725230 (1973-04-01), Bahder et al.
patent: 3793476 (1974-02-01), Misiura et al.
patent: 3925597 (1975-12-01), Misiura et al.
patent: 3991397 (1976-11-01), King
patent: 4150193 (1979-04-01), Burns
patent: 4303574 (1981-01-01), Vostovich
Mattiello "Protective & Decorative Coatings" vol. II, Wiley & Sons, 1942 pp. 506, 519.

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