US 12,215,207 B2
Method for producing a product reinforced by a reinforcing element
Gael Pataut, Clermont-Ferrand (FR); and David Doisneau, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 16/954,073
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Nov. 26, 2018, PCT No. PCT/FR2018/052982
§ 371(c)(1), (2) Date Jun. 15, 2020,
PCT Pub. No. WO2019/115900, PCT Pub. Date Jun. 20, 2019.
Claims priority of application No. 1762247 (FR), filed on Dec. 15, 2017.
Prior Publication US 2022/0227947 A1, Jul. 21, 2022
Int. Cl. C08J 5/04 (2006.01); B60C 1/00 (2006.01); C08J 5/24 (2006.01)
CPC C08J 5/04 (2013.01) [B60C 1/0041 (2013.01); C08J 5/246 (2021.05); C08J 5/249 (2021.05); B60C 2001/0066 (2013.01); C08J 2361/12 (2013.01)] 12 Claims
 
1. A process for the manufacture of a reinforced product comprising a matrix based on a composition and at least one reinforcing element, the at least one reinforcing element being embedded in the matrix, the process comprising the steps:
making the composition comprising at least one compound A1, exhibiting a melting point T1, and at least one compound A2, exhibiting a melting point T2, by mixing the at least one compound A1 and the at least one compound A2 at a temperature Tm such that T1≤Tm<T2, so as to dissolve the at least one compound A2 in the at least one compound A1 and to obtain the composition in a liquid state, the composition being free of organic solvent and water;
submerging the at least one reinforcing element in the composition in the liquid state;
a first crosslinking step in which the at least one compound A1 is reacted with the at least one compound A2 to form a resin by heating from a temperature Tm, crosslinking the resin based on the at least one compound A1 and on the at least one compound A2 by heating the composition to at least a temperature Tn such that T1≤Tm<Tn, so as to form the matrix in which the at least one reinforcing element is embedded; and
a second crosslinking step in which the resin is heated to a temperature Tp with Tn<Tp.