Insulating covering for strand material
First Claim
Patent Images
1. A strand material having an insulating convering thereover, said covering comprising an extruded blend of a styrene-ethylenebutylene-styrene copolymer with a mixture of low melt index and high melt index polypropylenes.
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Abstract
A telephone cord employs as an insulator for the conductors therein an extrudable blend of a styrene-ethylenebutylene-styrene copolymer with polypropylene.
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Citations
10 Claims
- 1. A strand material having an insulating convering thereover, said covering comprising an extruded blend of a styrene-ethylenebutylene-styrene copolymer with a mixture of low melt index and high melt index polypropylenes.
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7. A strand material having an insulating covering thereover, said covering comprising an extruded blend of from >
- 10 to <
20 weight parts of a styrene-ethylenebutylene-styrene copolymer wherein the length of the styrene chains exceeds the length of the ethylenebutylene chain, >
10 to <
20 weight parts of a low melt index polypropylene and >
50 to <
80 weight parts of a high melt index polypropylene. - View Dependent Claims (8, 9, 10)
- 10 to <
Specification