US 11,878,446 B2
Method for manufacturing articles made from crumb rubber
Frédéric Pialot, Clermont-Ferrand (FR); and José Merino Lopez, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/414,077
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 6, 2019, PCT No. PCT/FR2019/052956
§ 371(c)(1), (2) Date Jun. 15, 2021,
PCT Pub. No. WO2020/128213, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 1873362 (FR), filed on Dec. 19, 2018; and application No. 1900986 (FR), filed on Feb. 1, 2019.
Prior Publication US 2022/0040891 A1, Feb. 10, 2022
Int. Cl. B29C 43/00 (2006.01); B29D 30/06 (2006.01); B29B 13/10 (2006.01); B29C 43/52 (2006.01); B29C 43/58 (2006.01); B29K 105/00 (2006.01); B29K 105/26 (2006.01)
CPC B29C 43/006 (2013.01) [B29B 13/10 (2013.01); B29C 43/52 (2013.01); B29D 30/06 (2013.01); B29C 2043/5808 (2013.01); B29C 2043/5816 (2013.01); B29K 2105/251 (2013.01); B29K 2105/26 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A process for manufacturing an article made of recovered rubber crumb, wherein:
a) crumb particles are mixed with particles of a solute;
b) a molded article is produced by sintering the mixture from step a) alone in a mold under predetermined temperature and pressure conditions;
c) the molded article is brought into contact with a solvent so as to dissolve at least one portion of the particles of said solute.