Stabilized medium and high voltage cable insulation composition
First Claim
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1. A composition comprising (a) a polyethylene (b) a scorch inhibitor having a melting point below 50°
- C. at atmospheric pressure, and (c) an organic peroxide.
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Abstract
The invention relates to a polyethylene composition for use as insulation for wire and cable that has improved scorch resistance comprising
(a) a polyethylene
(b) a scorch inhibitor having a melting point below 50° C. at atmospheric pressure, and
(c) an organic peroxide.
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Citations
11 Claims
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1. A composition comprising
(a) a polyethylene (b) a scorch inhibitor having a melting point below 50° - C. at atmospheric pressure, and
(c) an organic peroxide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
- C. at atmospheric pressure, and
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10. A process for preparing a crosslinked polyethylene composition whereby the polyethylene or the polyethylene/peroxide blend is introduced into an extruder and the scorch inhibitor having a melting point below 50°
- C. or the scorch inhibitor and the peroxide is added to said extruder and whereby the extrudate is then crosslinked by exposing it to a temperature greater than the decomposition temperature of which the organic peroxide decomposes.
Specification