Triarylmethane compounds

US11760712B2 · kind B2 · utility

Assignee

• Mitsubishi Gas Chemical Company, Inc. · JP

Inventors

• Karl Reuter · Gundelfingen, DE
• Vasyl Andrushko · Glückstadt, DE
• Mark Kantor · Freiburg (Elbe), DE
• Florian Stolz · Glückstadt, DE
• Munenori Shiratake · Tokyo, JP
• Kentaro Ishihara · Tokyo, JP
• Koji Hirose · Tokyo, JP
• Shinya Ikeda · Tokyo, JP
• Noriyuki Kato · Nara, JP
• Mitsuteru Kondo · Tokyo, JP
• Shoko Murata · Tokyo, JP
• Kensuke Oshima · Tokyo, JP

Key dates

• Filing date: Feb 1, 2019
• Grant date: Sep 19, 2023
• Expiry date: Apr 7, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2203/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to triarylmethane compounds of the formula (I), which suitable as monomers for preparing thermoplastic resins having beneficial optical properties and which can be used for producing optical devices. R1, R2 are e.g. hydrogen; Y is an alkylene group having 2, 3 or 4 carbon atoms, Ar is selected from mono- or polycyclic aryl and mono- or polycyclic hetaryl; X1, X2, X3, X4 are CH, C—Rx or N, provided that in each ring at most two of X1, X2, X3, X4 are N; Rx is e.g. halogen, CN or CH═CH2. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I).