Steel cord

Details Steel cord Steel cord

2011-01-18

2011-01-18

Hurley, Shaun R (Department: 3765)

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

Reexamination Certificate

active

07870715

ABSTRACT:
There is provided a steel cord including a plurality of untwisted core filaments of steel aligned in parallel, and a layer of sheath filaments of steel twisted around the core filaments so as to be unevenly distributed around the core filaments, wherein interstices between the filaments are maintained during vulcanization thereby achieving improved rubber penetration (sufficiently adhering rubber to the core filaments). Since the cross sectional length of the steel cord10is greater than the minimum cross sectional length, interstices A are maintained between sheath filaments14under the tension and pressure p of the surrounding rubber16applied to the steel cord10during vulcanization. Rubber16penetrates into the steel cord10through the interstices A, and sufficiently adhere to core filaments12to achieve high rubber penetration.

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