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:
Mar. 07, 2006
Filed:
Sep. 04, 2001
Yuichi Yoshimura, Mie, JP;
Motoharu Takeuchi, Tokyo, JP;
Yuichi Yoshimura, Mie, JP;
Motoharu Takeuchi, Tokyo, JP;
Mitsubishi Gas Chemical Co., Inc., Tokyo, JP;
Abstract
The composition for optical materials of the present invention contains at least one compound represented by the following Formula 1:wherein R, Rand Rare each independently C–Chydrocarbyl or hydrogen; X, Xand Xare each independently S, Se or Te; Y, Yand Yare each independently —S—[(CH)S]H, a is an integer from 0 to 2, b is an integer from 0 to 4, and c is an integer from 0 to 2, and a compound reactive to the compound of Formula 1. A resin produced by curing a composition containing the compound of Formula 1 by polymerization has a high refractive index, and suitable as various optical materials.