Resin obtained from cyclic diol compound and optical lens containing same

By using the ring diol compound represented by the general formula (1), a resin with excellent heat resistance and optical characteristics is produced, and the problem of insufficient optical characteristics of the resin in the prior art is solved, and the manufacturing of a high-performance optical lens is realized.

CN119744278APending Publication Date: 2025-04-01MITSUBISHI GAS CHEM CO INC
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Patent Information

Application Number
CN202380054861.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-07-25
Filing Date
2023-07-20
Publication Date
2025-04-01

AI Technical Summary

Technical Problem

The prior art is difficult to provide a resin with excellent heat resistance, excellent optical characteristics such as refractive index and Abbe number, and an optical lens containing the resin.

Method used

By using the cyclic diol compound having a diacetal structure represented by the general formula (1), a resin having excellent heat resistance, excellent optical properties such as refractive index and Abbe number, and an optical lens containing the resin were produced.

Benefits of technology

The resin has excellent properties such as heat resistance, refractive index, Abbe number, partial dispersion ratio and abnormal partial dispersion, and is suitable for the manufacturing of high-performance optical lenses.

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Abstract

According to the present invention, it is possible to provide a resin containing a structural unit (A) derived from a monomer represented by general formula (1), the resin being a polycarbonate resin or a polyester carbonate resin. In formula (1), R1 may be the same or different and each represents a hydrogen atom, a C1-4 alkyl group, or a phenyl group. And X is a direct bond or a divalent group represented by formula (Y). In formula (Y), R2 and R3 may be the same or different and represent a hydrogen atom, an alkyl group, or an aryl group, or R2 and R3 may be bonded to each other and form a ring together with an adjacent carbon atom, and the ring may be substituted by an alkyl group. And n is 0 or 1. And * represents a bonding position. # imgabs0 #
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