The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2023
Filed:
Feb. 01, 2019
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Karl Reuter, Freiburg, DE;
Vasyl Andrushko, Freiburg, DE;
Mark Kantor, Freiburg, DE;
Florian Stolz, Freiburg, DE;
Munenori Shiratake, Ibaraki, JP;
Kentaro Ishihara, Tokyo, JP;
Koji Hirose, Tokyo, JP;
Shinya Ikeda, Tokyo, JP;
Noriyuki Kato, Tokyo, JP;
Mitsuteru Kondo, Tokyo, JP;
Shoko Murata, Tokyo, JP;
Kensuke Oshima, Tokyo, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
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. 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—Ror N, provided that in each ring at most two of X, X, X, Xare N; Ris e.g. halogen, CN or CH═CH. The invention also relates to thermoplastic resins comprising a polymerized unit of the compound of formula (I).