US 12,331,198 B2
Rubber compositions comprising an epoxide diene elastomer and a cross-linking system
Adeline Jasselin, Clermont-Ferrand (FR); Francois Jean-Baptiste-Dit-Dominique, Clermont-Ferrand (FR); Camille Chatard, Castries (FR); and Cedric Loubat, Castries (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/767,841
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Oct. 8, 2020, PCT No. PCT/FR2020/051773
§ 371(c)(1), (2) Date Apr. 8, 2022,
PCT Pub. No. WO2021/069840, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 1911279 (FR), filed on Oct. 10, 2019.
Prior Publication US 2024/0101797 A1, Mar. 28, 2024
Int. Cl. C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08K 3/36 (2006.01); C08K 5/5357 (2006.01)
CPC C08L 9/06 (2013.01) [B60C 1/00 (2013.01); C08K 3/36 (2013.01); C08K 5/5357 (2013.01); C08L 2312/00 (2013.01)] 11 Claims
 
1. A rubber composition containing at least:
an elastomer matrix comprising at least one diene elastomer comprising epoxide functions;
a reinforcing filler; and
a system for crosslinking the at least one diene elastomer, the system comprising at least one organopolyphosphorus compound of general formula (I)

OG Complex Work Unit Chemistry
in which:
A represents a covalent bond or a hydrocarbon group comprising at least 1 carbon atom, which is optionally substituted and which optionally comprises one or more heteroatoms, and
each R represents, independently of one another, a hydrocarbon group comprising at least 1 carbon atom or a hydrogen atom.