Polymerizable Inorganic Particle Dispersant for Optical Resin
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Solution Overview
Problem
Existing hybrid materials face challenges in simultaneously achieving high refractive index and Abbe's number, with conventional polymerizable resins lacking polymerizability and dispersion stability, leading to inconsistent optical properties and low productivity.
Innovation Solution
A polymerizable inorganic-particle dispersant with specific functional groups, including a polymerizable functional group, a carboxyl or oxo acid group, and a sulfur-containing aliphatic hydrocarbon group, which can polymerize independently and effectively disperse inorganic particles, thereby enhancing refractive index and Abbe's number.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If metal oxide nanoparticles are dispersed in organic materials to increase refractive index, then refractive index is improved, but Abbe's number decreases
Solution Approach 1:
The invention changes the chemical composition parameters of the hybrid material by incorporating specific metal oxide nanoparticles (titanium oxide, zirconium oxide, or barium titanate) with controlled particle sizes (1-10 nm) and concentrations. By optimizing the ratio of inorganic to organic components and selecting specific metal oxide types, the patent achieves a refractive index of 1.65 or higher while maintaining an Abbe's number of 30 or higher, resolving the traditional inverse relationship between these two optical properties.
Solution Approach 2:
The invention creates a composite hybrid material system combining organic resin components with inorganic metal oxide nanoparticles. The composite structure allows synergistic effects where the organic matrix provides flexibility and processability while the inorganic nanoparticles contribute high refractive index and mechanical strength. This composite approach enables simultaneous optimization of multiple properties including refractive index, Abbe's number, and mechanical characteristics that cannot be achieved with single materials.
2Illumination intensity
If a large amount of metal oxide nanoparticles is dispersed in resin to obtain high refractive index, then refractive index is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The invention applies partial action by using controlled, moderate concentrations of metal oxide nanoparticles (achieving refractive index ≥1.65 without requiring excessive amounts). The patent optimizes the nanoparticle loading to provide sufficient optical enhancement while avoiding the diminishing returns and processing difficulties associated with high concentrations. This approach achieves the target refractive index with manageable manufacturing complexity.
Solution Approach 2:
The invention applies local quality by using nanoparticle sizes in the specific range of 1-10 nm, which provides optimal balance between refractive index enhancement and dispersion stability. The small particle size enables effective dispersion at lower concentrations, reducing manufacturing complexity. Additionally, the patent specifies particular metal oxide types (titanium oxide, zirconium oxide, barium titanate) with locally optimized properties to achieve high refractive index without requiring large amounts of material.
3Ease of operation
If conventional polymerizable resins are used without polymerizability, then ease of dispersion is improved, but productivity decreases
Solution Approach 1:
The invention applies self-service by incorporating polymerizable functional groups directly into the resin molecules used in the hybrid material system. These polymerizable resins can undergo polymerization reactions to form crosslinked networks, providing self-hardening and self-stabilizing properties. This eliminates the need for separate dispersion stabilization processes and enables high-productivity manufacturing through one-step curing, while maintaining excellent dispersion stability of the metal oxide nanoparticles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dispersant enables the production of inorganic-organic composite particles with improved refractive index and Abbe's number stability, suitable for optical applications by ensuring transparency and refractive-index control, overcoming previous limitations in productivity and optical performance.
Implementation Method 1
a polymerizable inorganic-particle dispersant which has a polymerizable functional group A, a portion B which is adsorbed onto inorganic particles, and a specific group Q in the molecule
Implementation Method 2
a polymerizable inorganic-particle dispersant that itself has a high refractive index and a high Abbe's number and that is capable of providing a composite material composition combining a high refractive index and a high Abbe's number
Data Source
AI summary
The present invention provides a polymerizable inorganic particle dispersant that can achieve an inorganic-organic composite particle and inorganic-organic resin composite material, which have a high refractive index and a high Abbe's number, i.e., which can achieve both of a high refractive index and a high Abbe's number that is non-conventional in a composite with an inorganic particle. The present invention relates to a polymerizable inorganic particle dispersant comprising a compound which includes the following functional groups A, B and Q: A: Polymerizable functional group; B: Carboxyl group, Oxo acid group containing a phosphorous or Oxo acid group containing sulfur; and C: Sulfur-containing divalent or more aliphatic hydrocarbon group, which may contain a hetero atom other than sulfur.