Pressureless cure system for chemically cross-linking ethylene c

Details Pressureless cure system for chemically cross-linking ethylene c Pressureless cure system for chemically cross-linking ethylene c

1975-11-05

1977-01-25

Lesmes, George F.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

260 37SB, 260 4215, 264104, 428328, 428329, 428405, 428500, B32B 516, B32B 2720

Patent

active

040052540

ABSTRACT:
A curable composition comprising an ethylene-containing polymer, a curing agent, and a mineral filler treated with tetramethyltetravinylcyclotetrasiloxane, is compounded and fabricated to the desired shape, such as an insulation layer over a conductor. The fabricated product is then passed through a non-aqueous heat transfer medium maintained at about atmospheric pressure and at a temperature sufficient to effect curing in situ of the ethylene-containing polymer. The resulting cured composition is characterized as relatively dense (substantially non-porous) especially suitable for use as insulation for wire and cable.

REFERENCES:
patent: 2888424 (1959-05-01), Precopio et al.
patent: 3160598 (1964-12-01), Delfosse
patent: 3485938 (1969-12-01), Kingsley
patent: 3534132 (1970-10-01), Bailey et al.

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