A STEEL CORD FOR RUBBER REINFORCEMENT
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United States of America Patent
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Issued Date -
Dec 7, 2023
app pub date -
Nov 30, 2021
filing date -
Dec 22, 2020
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Abstract
The invention provides a steel cord with a construction of n×1, n is the number of the steel filaments of the steel cord, the steel cord has an elongation at 2.5N-50N of less than 1.2% and a twist pitch of greater than 16 mm, each of the steel filaments has a form of helical wave with a wave length L expressed in mm and a wave height H expressed in mm when being unravelled from said steel cord, L is greater than 16 mm, each of the steel filaments has a space volume Vs satisfying that, Vs=L×H2×π/4, and Vs>20 mm3. The invention steel cord is beneficial for the stress distribution.
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