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US 7,858,711 B2Granted
Lead-free insulation compositions containing metallocene polymers
AssigneeGeneral Cabletechnologies Corporation
InventorMark R. Easter
Life of this patent
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Abstract
Novel additive systems for lead-free filled cable insulation are disclosed. These systems provide improved electrical and mechanical properties. The base polymer may be metallocene based, non metallocene based or combinations thereof. The additives may contain one or more hindered amine light stabilizers, mercapto compounds, and optionally, amine antioxidants.
Claims5
A lead-free insulation composition for electric cable comprising:
- (a) a base polymer;
- and
- (b) a filler;
- (c) at least one mercapto compound;
- wherein no ingredients containing substantial amounts of lead have been added to said composition.
2 more elements
Dependencies are inferred from the claim text.