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

Details

Veröffentlichungs-Nr.

EP4768475

Anmeldetag

8. August 2024

Veröffentlichung

27. Februar 2025

Rechtsraum

EP

Abstract

The purpose of the present disclosure is to provide: a photochromic compound that is superior in terms of the temperature dependence and the color fading rate; a naphthol derivative that could be an intermediate for the photochromic compound; and a curable composition, an optical article, a lens, and eyeglasses each including the photochromic compound. An embodiment of the present invention provides a photochromic compound having a skeleton represented by formula (1). In formula (1), M is 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 in which an aromatic ring or an aromatic heterocyclic ring is fused on the substituted or unsubstituted aromatic ring or the substituted or unsubstituted aromatic heterocyclic ring. Z1 is a group represented by formula (1a) or a group represented by formula (1b).

Anmelder

Firma

TOKUYAMA CORPORATION

Land

🇯🇵 Japan