公开(公告)号：US20240109980A1

公开(公告)日：2024-04-04

申请号：US18274745

申请日：2022-01-14

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： FLORENT VAULTIER ,  KEVIN ROOS ,  FABIEN BARRET

IPC: C08C19/22 ,  B60C1/00 ,  B60C11/00 ,  C08C19/25 ,  C08L9/06

CPC classification number: C08C19/22 ,  B60C1/0016 ,  B60C11/0008 ,  C08C19/25 ,  C08L9/06 ,  B60C2011/0025

Abstract: A resin-extended modified diene elastomer is capable of being obtained by a process comprising at least: anionically polymerizing, in an organic solvent, at least one conjugated diene monomer having from 4 to 12 carbon atoms in the presence of a polymerization initiator to form a living diene elastomer having a number-average molar mass Mn1; modifying the living diene elastomer by reaction with a modifying agent to form a modified diene elastomer having a number-average molar mass Mn2 and a glass transition temperature, measured according to the standard ASTM D3418-08, within a range extending from −95° C. to −70° C.; adding at least one plasticizing resin to the organic solvent comprising the modified diene elastomer; and removing the organic solvent to obtain the resin-extended modified diene elastomer. The resin-extended modified diene elastomer has an Mn2/Mn1 ratio of strictly greater than 1.00 and an Mn2 of greater than or equal to 200,000 g/mol.

公开(公告)号：US20240117162A1

公开(公告)日：2024-04-11

申请号：US18274746

申请日：2022-01-14

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： FLORENT VAULTIER ,  KEVIN ROOS ,  FABIEN BARRET

IPC: C08L15/00 ,  B60C1/00 ,  C08C19/22 ,  C08C19/24 ,  C08C19/25 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K3/36 ,  C08K5/01 ,  C08K5/09 ,  C08K5/44 ,  C08K5/548 ,  C08L9/06

CPC classification number: C08L15/00 ,  B60C1/0016 ,  C08C19/22 ,  C08C19/24 ,  C08C19/25 ,  C08K3/04 ,  C08K3/06 ,  C08K3/22 ,  C08K3/36 ,  C08K5/01 ,  C08K5/09 ,  C08K5/44 ,  C08K5/548 ,  C08L9/06 ,  C08K2003/2296 ,  C08K2201/006

Abstract: A resin-extended modified diene elastomer is based on a plasticizing resin and a diene elastomer having a number-average molar mass before modification Mn1 and a number-average molar mass Mn2 after modification, Mn1 and Mn2 being measured by triple detection size exclusion chromatography, the modified diene elastomer comprising branched chains corresponding to the following general formula (I)




the modified diene elastomer having an Mn2 of greater than or equal to 200 000 g/mol and has an Mn2/Mn1 ratio of strictly greater than 1.00.