US 5,326,638 A · Transmission media covered with lead-free stabilized polyvinyl chloride sheath with sacrificial component

Abstract

A cable (20) which may be used for communications, for example, include transmission media (24-24), each having a plastic composition of matter disposed thereabout. The insulation (26) comprises a polyvinyl chloride composition which includes a lubricant and a lead-free stabilization system. The stabilization system includes a calcium-zinc constituent in combination with an antioxidant-metal deactivator complex which provides a sacrificial function to prevent the formation of calcium or zinc chloride which would affect adversely the electrical properties of the insulated conductor. A jacket (28) typically is disposed about a plurality of the transmission media and comprises a non-lead stabilized plastic composition of matter.

Claims18

Dependent claims

A cable comprising:

at least one longitudinally extending transmission medium;
a lead-free polyvinyl chloride based material which surrounds at least a portion of said longitudinally extending transmission medium, said polyvinyl chloride based material being a composition comprising:
a polyvinyl chloride resin;
a stabilization system which comprises a calcium-zinc stabilizer and a sacrificial constituent which protects the polyvinyl chloride resin from oxygen-catalyzed expulsion of hydrogen chloride;
and
a lubricant;
and
a jacket which is comprised of a plastic material and which is disposed about said at least one transmission media.

5 more elements

Dependencies are inferred from the claim text.

Transmission media covered with lead-free stabilized polyvinyl chloride sheath with sacrificial component

Life of this patent

Transmission media covered with lead-free stabilized polyvinyl chloride sheath with sacrificial component

Life of this patent

Abstract

Claims18