HIGH ELONGATION STEEL CORD AND PNEUMATIC TIRE COMPRISING SAID CORD

Title:

HIGH ELONGATION STEEL CORD AND PNEUMATIC TIRE COMPRISING SAID CORD

Document Type and Number:

WIPO Patent Application WO/2015/014639

Kind Code:

A3

Abstract:

A high elongation steel cord (200), namely a cord having an elongation at break of greater or equal to 5%, comprises a plurality of strands (205) twisted together with a cord twist pitch. Said cord twist pitch results in a cord twist angle. Each strand (205) comprises a plurality of filaments (210) twisted together with a strand twist pitch resulting in a strand twist angle. The structural elongation of the high elongation steel cord (200) is greater or equal to 2.0% for a sum of the strand twist angle and the cord twist angle between 20 and 29 degrees, or said structural elongation is greater or equal to 2.5% for said sum between 30 and 38 degrees, or said structural elongation is greater or equal to 3.0% for said sum between 39 and 48 degrees. The steel cord is stable and durable and features high rubber penetration, and consequently is corrosion resistant.

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Inventors:

WANG HE (CN)
DESPIEGELAERE ROEL (BE)
ZHU HONGZHEN (CN)

Application Number:

PCT/EP2014/065541

Publication Date:

April 02, 2015

Filing Date:

July 18, 2014

Export Citation:

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Assignee:

BEKAERT SA NV (BE)

International Classes:

D07B1/06

Foreign References:

US20120267025A1	2012-10-25
US20120011823A1	2012-01-19
JP2006193839A	2006-07-27
JP2009248751A	2009-10-29

Other References:

ANONYMOUS: "Reinforcement of protection plies or of outermost plies", RESEARCH DISCLOSURE, MASON PUBLICATIONS, HAMPSHIRE, GB, vol. 338, no. 77, 1 June 1992 (1992-06-01), XP007117827, ISSN: 0374-4353