US 11,919,339 B2
Shear band having ultra-low hysteresis rubber
Clifford Wilson, Simpsonville, SC (US); Clayton Bohn, Jr., Mauldin, SC (US); Timothy Brett Rhyne, Greenville, SC (US); and Steven M Cron, Simpsonville, SC (US)
Assigned to Compagnie Generale des Etablissements Michelin, Clermont-Ferrand (FR)
Appl. No. 16/464,586
Filed by Compagnie Generale des Etablissements Michelin, Clermont-Ferrand (FR)
PCT Filed Nov. 28, 2017, PCT No. PCT/US2017/063463
§ 371(c)(1), (2) Date May 28, 2019,
PCT Pub. No. WO2018/102303, PCT Pub. Date Jun. 7, 2018.
Application 16/464,586 is a continuation of application No. PCT/US2016/064252, filed on Nov. 30, 2016.
Prior Publication US 2021/0094353 A1, Apr. 1, 2021
Int. Cl. B60C 7/14 (2006.01); B29D 30/02 (2006.01); B60C 1/00 (2006.01); B60C 7/10 (2006.01); B60C 7/18 (2006.01); B60C 7/22 (2006.01); C08J 5/04 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01); C08K 7/14 (2006.01); C08L 7/00 (2006.01); C08L 9/06 (2006.01)
CPC B60C 7/14 (2013.01) [B29D 30/02 (2013.01); B60C 1/0016 (2013.01); B60C 1/0041 (2013.01); B60C 7/102 (2013.01); B60C 7/18 (2013.01); B60C 7/22 (2013.01); C08J 5/041 (2013.01); C08J 5/043 (2013.01); C08J 5/046 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 7/14 (2013.01); C08L 7/00 (2013.01); C08L 9/06 (2013.01); B60C 2001/0091 (2013.01); B60C 7/146 (2021.08); C08J 2467/02 (2013.01); C08J 2477/00 (2013.01); C08K 2201/006 (2013.01); C08L 2312/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An annular shear band defining axial, radial and circumferential directions, the annular shear band comprising:
an annular shear layer constructed from a rubber composition;
a plurality of discrete, annular reinforcing elements positioned along a plurality of axially-oriented rows throughout the annular shear layer, the reinforcing elements separated from one another by a predetermined distance, each reinforcing element having a centerpoint, wherein the reinforcing elements are interlaced along the axial or radial direction of the shear band such that the centerpoints of reinforcing elements of adjacent, axially-oriented rows are arranged to form a rhombus having non-orthogonal angles between sides of the rhombus, wherein the rubber composition is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, in parts by weight per 100 parts by weight of rubber (phr):
between 50 phr and 100 phr of a natural rubber;
between 0 phr and 50 phr of a second rubber component selected from the group consisting of polybutadiene rubber, a copolymer of polybutadiene and styrene wherein the copolymer has no more than 5 mol % styrene and combinations thereof;
between 15 phr and 40 phr of a reinforcing filler that comprises at least 5 phr but no more than 35 phr of a total amount of a carbon black, the total amount of the carbon black limited to a first portion having a target surface area of between 25 m2/g and 39 m2/g and between 0 phr and 5 phr of a second portion having its surface area of other than between 25 m2/g and 39 m2/g; and
a sulfur cure system.