Polythiol compound, preparation method thereof and application of polythiol compound in optical material

By preparing a new polythiol compound 4,8,11-trimercaptomethyl-3,6,9,12-tetrathiotetradecane-1,14-diol, and using it for the preparation of optical materials, the problems of high turbidity and yellow index of optical materials in the prior art are solved, and the light transmittance and optical properties of the materials are improved.

CN119775179AActive Publication Date: 2025-04-08EFIRM NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202411957701.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-29
Publication Date
2025-04-08
Estimated Expiration
2044-12-29

AI Technical Summary

Technical Problem

The optical materials produced by polythiol compounds produced by the prior art have high turbidity and yellow index, which affect the light transmittance and optical properties of the material.

Method used

A polythiol compound 4,8,11-trimercaptomethyl-3,6,9,12-tetrathiotetradecane-1,14-diol is provided, and the compound is prepared by a specific synthetic method, combined with other raw materials for the preparation of optical materials, reducing the turbidity and yellow index of the material.

Benefits of technology

Effectively reduce the turbidity and yellow index of optical materials, improve the light transmittance and optical properties of the materials, and meet the raw material requirements for preparing excellent optical materials.

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Abstract

The invention relates to the fields of organic compounds and new optical material preparation, and particularly provides a polythiol compound 4, 8, 11-trimercaptomethyl-3, 6, 9, 12-tetrathiatetradecane-1, 14-diol, a polythiol composition prepared from the polythiol compound, a polymeric composition prepared from the prepared polythiol composition, and a preparation method of the polythiol compound 4, 8, 11-trimercaptomethyl-3, 6, 9, 12-tetrathiatetradecane-1, 14-diol. And the obtained polymerizable composition is used for preparing an optical material, so that the prepared optical material has lower turbidity and yellow index. The polythiol compound has many branched chains, so that the crosslinking degree can be further increased, and the turbidity can be reduced; and in the presence of hydroxyl, a polyurethane group is generated during polymerization, so that the yellow index is reduced.
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Citation Information

Patent Citations

  • Method for producing polythiol compound for optical materials and composition comprising same for optical materials

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  • High-refractive-index material based on biomass magnolol and honokiol

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