Process for producing a crosslinked polyolefin insulated power c

Details Process for producing a crosslinked polyolefin insulated power c Process for producing a crosslinked polyolefin insulated power c

1985-11-14

1988-03-22

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

Conductive carbon containing

174120SC, 264 22, 264174, 264236, 264437, 425113, B29C 3502

Patent

active

047327227

ABSTRACT:
A crosslinked polyolefin insulated power cable with remarkably improved AC breakdown voltage and impulse withstand voltage has been obtained by a process which comprises extrustion-coating, on the outer surface of a conductor, (1) a material for the formation of an inner semiconductive layer, comprising a base polymer and N-vinylcarbazole, (2) a crosslinkable polyolefin material for the formation of a crosslinked polyolefin insulating layer and (3) a material for the formation of an outer semiconductive layer in this order and then subjecting the coated conductor to a crosslinking treatment to form, on the outer surface of the conductor, an inner semiconductive layer, a crosslinked polyolefin insulating layer and an outer semiconductive layer in this order.

REFERENCES:
patent: 3187071 (1965-06-01), Radziejowski
patent: 3479446 (1969-11-01), Arnaudin, Jr. et al.
patent: 3876446 (1975-04-01), Bleckmann et al.
patent: 4041237 (1977-08-01), Stine et al.
patent: 4061703 (1977-12-01), Rothenberg et al.
patent: 4130450 (1978-12-01), Bahder et al.
patent: 4138462 (1979-02-01), Procida et al.
patent: 4220615 (1980-09-01), Sommarland
patent: 4276251 (1981-06-01), Bopp
patent: 4471215 (1984-09-01), Blumer

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