Invention Publication
- Patent Title: ELECTROCHROMIC COMPOUNDS AND OPTICAL ARTICLES CONTAINING THEM
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Application No.: US18258738Application Date: 2021-12-14
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Publication No.: US20240052235A1Publication Date: 2024-02-15
- 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
- Applicant: Essilor International
- Applicant Address: FR Charenton-Le-Pont
- Assignee: Essilor International
- Current Assignee: Essilor International
- Current Assignee Address: FR Charenton-Le-Pont
- Priority: EP 306663.4 2020.12.22
- International Application: PCT/EP2021/085653 2021.12.14
- Date entered country: 2023-06-21
- Main IPC: C09K9/02
- IPC: C09K9/02 ; C07D417/04 ; C07D401/04 ; C07D471/04 ; C07D401/14 ; C07D421/04 ; C07D413/04
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.
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