Rubber-reinforcing aromatic polyamide fiber cords
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United States of America Patent
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Nov 29, 1988
Grant Date -
N/A
app pub date -
Jun 17, 1987
filing date -
Jul 24, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Rubber-reinforcing polyamide fiber cords are disclosed which are each obtained by primarily twisting an aromatic polyamide filament yarn, doubling a plurality of thus primarily twisted yarns and finally twisting doubled yarns in a twisting direction opposite to that of the primary twist yarn to obtain a plied yarn, and applying a rubber adhesive to the thus obtained plied yarn. N and M satisfy the following relation: 1.05.ltoreq.M/N.ltoreq.1.6 in which N and M are the number of primary twists and the number of the twists in the cord, respectively.
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