Composition for optical material
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsYuichi Yoshimura, Motoharu Takeuchi
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Abstract
The composition for optical materials of the present invention contains at least one compound represented by the following Formula 1: wherein R1, R2 and R3 are each independently C1–C10 hydrocarbyl or hydrogen; X1, X2 and X3 are each independently S, Se or Te; Y1, Y2 and Y3 are each independently —Sa—[(CH2)bS]cH, 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.
Claims15
A composition for optical materials comprising at least one compound represented by the following Formula 1:
- wherein R1, R2 and R3 are each independently C1–C10 hydrocarbyl or hydrogen;
- X1, X2 and X3 are each independently S, Se or Te;
- Y1, Y2 and Y3 are each independently —Sa—[(CH2)bS]cH, 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, wherein the compound reactive to the compound of Formula 1 is a sulfur-containing organic compound, an isocyanate compound, an isothiocyanate compound, an epoxy compound or a vinyl compound, and wherein the sulfur-containing organic compound has, in one molecule, at least one group represented by the following Formula 2:
- wherein R4 is C1–C10 hydrocarbyl;
- R5, R6 and R7 are each independently C1–C10 hydrocarbyl or hydrogen;
- Y is O, S, Se or Te;
- m is an integer from 1 to 5;
- n is an integer from 0 to 5;
- and p is 0 or 1.
Dependencies are inferred from the claim text.