Filling material for electric cable
First Claim
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1. A cable comprising:
- a plurality of conductors contained within a sheath leaving voids between the conductors, and between the conductors and the sheath, and a filling material filling the voids the invention characterized in that the filling material comprises a mixture of;
(X) ASTM Type 103, 104A or 104B, or mixtures thereof, (paraffinic or naphthenic) oil having a minimum sp. gr. of 0.860, a minimum SUS viscosity at 210 degrees F. of 45, a maximum pour point ASTM D 97 of 20 degrees F. and a maximum of 5 percent aromatic oils,(Y) a styrene-ethylene butylene-styrene block copolymer having a styrene-rubber ratio of approximately 0.2 to 0.5, and(Z) a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, the ingredients X, Y and Z having relative proportions falling within the shaded area bounded by ABCDEF of the FIGURE.
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Abstract
A cable fill composition comprising a paraffinic oil, a styrene-ethylene butylene-styrene block copolymer, and a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, whereby an improved drip point of the composition is obtained.
111 Citations
8 Claims
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1. A cable comprising:
a plurality of conductors contained within a sheath leaving voids between the conductors, and between the conductors and the sheath, and a filling material filling the voids the invention characterized in that the filling material comprises a mixture of; (X) ASTM Type 103, 104A or 104B, or mixtures thereof, (paraffinic or naphthenic) oil having a minimum sp. gr. of 0.860, a minimum SUS viscosity at 210 degrees F. of 45, a maximum pour point ASTM D 97 of 20 degrees F. and a maximum of 5 percent aromatic oils, (Y) a styrene-ethylene butylene-styrene block copolymer having a styrene-rubber ratio of approximately 0.2 to 0.5, and (Z) a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, the ingredients X, Y and Z having relative proportions falling within the shaded area bounded by ABCDEF of the FIGURE. - View Dependent Claims (2, 3)
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4. A cable fill composition comprising
(X) ASTM Type 103, 104A, or 104B, or mixtures thereof (paraffinic or naphthenic) oil having a minimum sp. gr. of 0.860, a minimum SUS viscosity at 210 degrees F. of 45, a maximum pour point ASTM D 97 of 20 degrees F. and a maximum of 5 percent aromatic oils, (Y) a styrene-ethylene butylene-styrene block copolymer having a styrene-rubber ratio of approximately 0.2 to 0.5, and (Z) a linear polyethylene wax having an average molecular weight in the range of from about 1000 to 1500, the ingredients X, Y and Z having relative proportions falling within the shaded area bounded by ABCDEF of the FIGURE.
Specification