US 12,202,966 B2
Resin composition comprising a specific crosslinking agent
Gael Pataut, Clermont-Ferrand (FR); David Doisneau, Clermont-Ferrand (FR); Laura Luiz, Clermont-Ferrand (FR); and Julien Letessier, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/414,822
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 17, 2019, PCT No. PCT/FR2019/053104
§ 371(c)(1), (2) Date Jun. 16, 2021,
PCT Pub. No. WO2020/128288, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873134 (FR), filed on Dec. 18, 2018; and application No. 1900922 (FR), filed on Jan. 31, 2019.
Prior Publication US 2022/0064434 A1, Mar. 3, 2022
Int. Cl. B60C 1/00 (2006.01); C08J 5/24 (2006.01); C08K 5/14 (2006.01); C08K 5/18 (2006.01); C08K 5/23 (2006.01); C08K 5/3477 (2006.01); C08K 7/02 (2006.01); C08L 63/04 (2006.01); C08L 63/10 (2006.01); C08L 67/06 (2006.01); C08L 67/07 (2006.01)
CPC C08L 63/10 (2013.01) [B60C 1/00 (2013.01); C08K 5/14 (2013.01); C08K 5/18 (2013.01); C08K 5/23 (2013.01); C08K 5/3477 (2013.01); C08K 7/02 (2013.01); C08L 63/04 (2013.01); C08L 67/06 (2013.01); C08L 2312/06 (2013.01)] 11 Claims
 
1. A pneumatic tire comprising: a crown reinforced by a crown reinforcement; two sidewalls; two beads, each bead being reinforced with a bead wire; and a carcass reinforcement wound around the bead wire in each bead;
wherein the carcass reinforcement, the crown reinforcement, or both comprise a composite; wherein the composite comprises at least one fiber and a resin composition in a crosslinked state; and wherein the resin composition is based on:
a crosslinkable resin selected from the group consisting of vinyl ester resins and unsaturated polyester resins;
a crosslinking initiator, present in an amount of from 0.5% to 3% by weight of the resin composition; and
a crosslinking agent of general formula (I), present in an amount of from 2% and 15% by weight of the resin composition,

OG Complex Work Unit Chemistry
in which:
i is an integer of 2 to 4,
X is an i-valent group comprising at least one ring of 6 atoms selected from carbon and nitrogen and comprising at least 2 heteroatoms selected from nitrogen and oxygen, and
R is an acrylate group, methacrylate group, vinyl group, alkenyl group bearing an unsaturated carbon at the chain end, or alkynyl group bearing an unsaturated carbon at the chain end.