公开(公告)号：US20240262790A1

公开(公告)日：2024-08-08

申请号：US18041065

申请日：2021-08-21

Applicant: HEXCEL COMPOSITES LIMITED

Inventor： Christopher MASON

IPC: C07C275/40 ,  C08G59/40 ,  C08J5/24

CPC classification number: C07C275/40 ,  C08G59/4021 ,  C08J5/24 ,  C08J2363/00

Abstract: Bisorthohydroxy aromatic urones and their use as curatives and cure accelerators in resin systems particularly epoxy resin systems provide formulations with good outlife, low curing temperatures and desirable glass transition temperatures after curing, they are particularly useful in prepregs used in the production of components for the aerospace and wind turbine industries.