公开(公告)号：US20220194885A1

公开(公告)日：2022-06-23

申请号：US17604522

申请日：2020-05-05

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Rahul SHINGTE ,  Debaki GHOSH ,  Letanzio BRAGANTE ,  Manuel GREGORI ,  Stefano MILLEFANTI ,  Emanuela ANTENUCCI ,  Joel POLLINO

IPC: C07C43/275 ,  C07C43/29 ,  C07C317/22 ,  C07D263/57 ,  C08G73/10

Abstract: The invention pertains to a multi-step process for making polyfunctional aromatic compounds comprising two phenyl rings bearing reactive groups susceptible of polycondensation reaction to provide polycondensed polymers, said method using economic raw materials, and possessing high selectivity and overall yield.

公开(公告)号：US20220033578A1

公开(公告)日：2022-02-03

申请号：US17280321

申请日：2019-09-27

Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

Inventor： Ritu AHUJA ,  Debaki GHOSH ,  Kamini SHARMA ,  Letanzio BRAGANTE ,  Stefano MILLEFANTI

IPC: C08G65/00 ,  C08K5/18

Abstract: The invention pertains to a fluoroelastomer composition including at least a nitrile-containing (per)fluoropolyether compound and at least one bis-amino(thio)phenol compound of formula (I), wherein: A is —SO2—, —O—, —C(O)— or divalent hydrocarbon groups of 1 to 10 carbon atoms, E is independently oxygen or sulphur and —NH2 groups are in ortho with respect to EH groups; to a process for manufacturing a (per)fluoropolyether-based thermoset and to a (per)fluoropolyether-based thermoset obtained therefrom.