	US 12,258,707 B2
	Single-layer multi-strand cable having improved energy at break and an improved total elongation
Gael Pataut, Clermont-Ferrand (FR); Henri Barguet, Clermont-Ferrand (FR); Lucas Lauby, Clermont-Ferrand (FR); and Olivier Reix, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/791,272
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 18, 2020, PCT No. PCT/FR2020/052526 § 371(c)(1), (2) Date Jul. 7, 2022, PCT Pub. No. WO2021/140287, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2000097 (FR), filed on Jan. 7, 2020.
Prior Publication US 2023/0349097 A1, Nov. 2, 2023
Int. Cl. D07B 1/06 (2006.01); D07B 7/02 (2006.01)

CPC D07B 1/0613 (2013.01) [D07B 1/0646 (2013.01); D07B 7/025 (2013.01); D07B 2201/1048 (2013.01); D07B 2201/1064 (2013.01); D07B 2201/2022 (2013.01); D07B 2401/201 (2013.01)]

18 Claims

1. A multi-strand cord having a 1×N structure comprising a single layer of N strands wound in a helix about a main axis, each strand having one layer of metal filaments and comprising M>1 metal filaments wound in a helix about an axis,

wherein the multi-strand cord has a total elongation At>8.10% determined by the standard ASTM D2969-04 of 2014, and

wherein an energy-at-break indicator Er of the multi-strand cord, defined by Er=∫₀^Atσ(Ai)×dAi, where σ(Ai) is a tensile stress in MPa measured at an elongation Ai and dAi is an elongation such that Er is strictly greater than 52 MJ/m³.