	US 12,134,694 B2
	Rubber composition comprising a polyphenolic compound
Anne-Lise Thuilliez, Clermont-Ferrand (FR); and Odile Gavard-Lonchay, Clermont-Ferrand (FR)
Appl. No. 17/278,044
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Sep. 13, 2019, PCT No. PCT/FR2019/052139 § 371(c)(1), (2) Date Mar. 19, 2021, PCT Pub. No. WO2020/058613, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 1858590 (FR), filed on Sep. 21, 2018.
Prior Publication US 2021/0380784 A1, Dec. 9, 2021
Int. Cl. C08L 7/00 (2006.01); B60C 1/00 (2006.01)

CPC C08L 7/00 (2013.01) [B60C 1/0041 (2013.01); B60C 2001/0066 (2013.01); C08L 2207/04 (2013.01); C08L 2312/00 (2013.01)]

11 Claims

1. A composite based on:

at least one reinforcing element comprising a metallic surface; and

a rubber composition based on at least:

an elastomer;

a reinforcing filler;

a crosslinking system; and

at least one polyphenolic compound, the polyphenolic compound comprising at least three aromatic rings comprising 6 carbon atoms, each bearing at least two vicinal hydroxyl groups, wherein the at least one polyphenolic compound is selected from the group consisting of gallotannins.