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US 5,474,847 AGranted
Telephone cables
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsMichael J. Keogh, Jeffrey M. Cogen, Geoffrey D. Brown
Life of this patent
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Abstract
An article of manufacture comprising, as a first component, a plurality of electrical conductors, each surrounded by one or more layers of a mixture comprising one or more polyolefins and the reaction product of a compound containing a sterically hindered amine or phenol and a quinone compound, and, as a second component, hydrocarbon cable filler grease within the interstices between said surrounded conductors.
Claims5
A cable construction adapted for underground use comprising the following components:
- (i) a plurality of insulated electrical conductors having interstices therebetween, said insulation comprising (a) one or more polyolefins and, blended therewith, (b) the reaction product of any one of ##STR4## wherein R.sup.1, R.sup.2, and R.sup.3 are each independently hydrogen or alkyl having 1 to 16 carbon atoms and R.sup.4, R.sup.5, and R.sup.6 are each independently hydrogen, alkyl having 1 to 6 carbon atoms, amino, alkyl amino having 1 to 12 carbon atoms, or alkoxy having 1 to 12 carbon atoms;
- (ii) hydrocarbon cable filler grease within the interstices;
- and
- (iii) a sheath surrounding components (i) and (ii).
1 more element
Dependencies are inferred from the claim text.