Tricyclodecane Dimethanol Compositions for Optical Polymers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current optical materials, such as aromatic polyesters, often suffer from poor light transmission and UV resistance, making them unsuitable for applications requiring high transparency across a wide range of light sources, including blue lasers and UV lasers.
Innovation Solution
The development of tricyclodecane dimethanol (TCDDM)-based compositions, which include specific components eluted within defined retention times and fragmentation patterns in GC and GC/MS analyses, are used to produce polymers with enhanced transparency and resistance to yellowing, suitable for manufacturing optical materials like optical discs, fibers, and lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If aromatic polyester is used as optical material, then it can be molded into various shapes, but light transmission and UV resistance are poor
Solution Approach 1:
The patent changes the chemical composition parameters by incorporating TCDDM with specific purity (99.5% or higher) and controlled impurity levels into the polyester resin system. This parameter change maintains the moldability of aromatic polyester while significantly improving light transmission and UV resistance through the specific chemical structure of TCDDM
Solution Approach 2:
The patent creates a composite material system by combining TCDDM with aromatic polyester resin, where the TCDDM acts as a comonomer that modifies the base polymer's optical properties. The composite achieves both the manufacturability of polyester and the superior optical properties of the cycloaliphatic structure
2Object-affected harmful factors
If comonomer is added to improve transparency, then light transmission improves, but composition complexity increases
Solution Approach 1:
The patent applies local quality by introducing TCDDM at specific concentration ranges (0.1-10 wt% or 1-50 wt%) into the polyester resin system. This controlled local addition provides the necessary optical property improvements while minimizing composition complexity. The specific retention time window (11.8-12.4 minutes) and peak area ratio (0.001:1 to 0.04:1) define precise local composition requirements
Solution Approach 2:
The patent defines specific parameter ranges for the comonomer content to balance transparency improvement with composition simplicity. By specifying the peak area ratio between TCDDM and the second component within 0.001:1 to 0.04:1, the patent optimizes the composition to achieve desired optical properties without excessive complexity
Data Source
AI summary
Compositions containing Tricyclodecane Dimethanol (TCCDM) and at least a second component, wherein the composition is characterized in a gas chromatography (GC) analysis, wherein the TCDDM is eluted at a retention time ranging from 12.4 minutes to 13 minutes, the second component is eluted at a retention time ranging from 11.8 minutes to 12.4 minutes, and the ratio of the area of elution peaks indicating the second component compared to the area of the elution peaks of the TCCDM is between 0.001:1 and 0.04:1. Useful products of the composition include polymers and optical materials.