公开(公告)号：US20240052235A1

公开(公告)日：2024-02-15

申请号：US18258738

申请日：2021-12-14

Applicant: Essilor International

Inventor： Claudine BIVER ,  Fabien BERIT-DEBAT ,  Samuel ARCHAMBEAU ,  Stuart AIKEN ,  Georgina K. ARMITAGE ,  Thomas D. BROADBENT ,  Daniel L. CROSSLEY ,  Christopher D. GABBUTT ,  Bernard Mark HERON

IPC: C09K9/02 ,  C07D417/04 ,  C07D401/04 ,  C07D471/04 ,  C07D401/14 ,  C07D421/04 ,  C07D413/04

CPC classification number: C09K9/02 ,  C07D417/04 ,  C07D401/04 ,  C07D471/04 ,  C07D401/14 ,  C07D421/04 ,  C07D413/04 ,  C09K2211/1018 ,  C09K2211/1007 ,  G02F1/0018

Abstract: The invention relates to a group of novel electrochromic compounds. More specifically, it relates to benzazoles and condensed azole compounds substituted with one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.