Mitsubishi Gas Chemical Company, Inc.

Shoko Murata

Koji Hirose

Noriyuki Kato

Shinya Ikeda

Kentaro Ishihara

Mitsuteru Kondo

Munenori Shiratake

Karl Reuter

Kensuke Oshima

Florian Stolz

Mark Kantor

Vasyl Andrushko

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. R, Rare 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; X, X, X, Xare CH, C&#x2014;Ror N, provided that in each ring at most two of X, X, X, Xare N; Ris e.g. halogen, CN or CH&#x2550;CH. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I).

Triarylmethane compounds

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Tokyo, Japan

Shoko Murata