Photochrome Verbindung, Phenolderivat, Härtbare Zusammensetzung, Optischer Artikel, Linse und Brille

Details

Veröffentlichungs-Nr.

EP4755878

Anmeldetag

24. Juli 2024

Veröffentlichung

6. Februar 2025

Rechtsraum

EP

Abstract

The purpose of the present disclosure is to provide: a photochromic compound having excellent temperature dependency and an excellent color fading rate; a phenol derivative that can be an intermediate for the photochromic compound; and a curable composition, an optical article, a lens, and an eyeglass, each containing the photochromic compound. An embodiment of the present invention provides a photochromic compound having a backbone represented by formula (1). In formula (1), M represents C, Si, or Ge. Ring A is a substituted or unsubstituted aromatic ring, a substituted or unsubstituted aromatic heterocyclic ring, or a substituted or unsubstituted condensed polycyclic ring obtained through fusing, to either of said rings, an aromatic ring or an aromatic heterocyclic ring. Z1 represents a group represented by formula (1a) or a group represented by formula (1b).

Anmelder

Firma

TOKUYAMA CORPORATION

Land

🇯🇵 Japan