US 11,702,531 B2
Elastomer composition comprising a filler at least partially covered by silica
Olivier Goncalves, Clermont-Ferrand (FR); and Cécile Belin, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 16/62,354
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 15, 2016, PCT No. PCT/FR2016/053454
§ 371(c)(1), (2) Date Jul. 28, 2020,
PCT Pub. No. WO2017/103495, PCT Pub. Date Jun. 22, 2017.
Claims priority of application No. 1562570 (FR), filed on Dec. 17, 2015.
Prior Publication US 2020/0399442 A1, Dec. 24, 2020
Int. Cl. C08K 9/10 (2006.01); B60C 1/00 (2006.01); C08K 3/04 (2006.01); C08K 3/36 (2006.01)
CPC C08K 9/10 (2013.01) [B60C 1/0016 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); B60C 2200/06 (2013.01); C08K 2201/014 (2013.01)] 16 Claims
 
1. A rubber composition based on at least one diene elastomer, a reinforcing filler predominantly comprising a filler covered at least partially by silica and a crosslinking system, wherein a dispersion of the filler in an elastomeric matrix including the at least one diene elastomer has a Z score greater than or equal to 70 and wherein the composition is devoid of agent for coupling the filler with the at least one diene elastomer.