Polythiol Resin Composition for Lens Dyeability and Light Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing polymerizable compositions for plastic lenses lack sufficient dyeability, which is essential for achieving high-performance optical elements.
Innovation Solution
A polythiol composition comprising a polythiol compound and a specific compound represented by formula (1), with a controlled peak area in high-performance liquid chromatography, is used to enhance the dyeability of the resulting resin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional polymerizable compositions are used for plastic lenses, then basic lens functions are achieved, but dyeability is insufficient
Solution Approach 1:
The invention changes the chemical composition parameters of the polymerizable composition by incorporating specific polythiol compounds with controlled molecular structures and ratios, thereby improving dyeability while maintaining color fastness through precise compositional control
Solution Approach 2:
The invention uses a composite system combining polythiol compounds with specific compounds of formula (1) in defined ratios to create a resin composition that achieves both excellent dyeability and color fastness, resolving the contradiction between ease of manufacture and reliability
Data Source
Figure 1
AI summary
A polythiol composition including a polythiol compound (A) and a compound represented by formula (1), wherein, in formula (1), m and n each independently represent 0 or 1, and m + n = 1.