Resin Precursor Composition Suppressing Precipitate Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional resin precursor compositions containing bifunctional (meth)acrylates with fluorine and fluorene structures often form precipitates during storage, requiring heating for redissolution, which increases production costs and may degrade components.
Innovation Solution
A resin precursor composition with a molar ratio of 90:10 to 70:30 of bifunctional to monofunctional acrylates or methacrylates with fluorene structures, along with a photopolymerization initiator, suppresses precipitate formation and maintains optical properties of low refractive index and high dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resin precursor composition contains a bifunctional (meth)acrylate containing a fluorine atom and a bifunctional (meth)acrylate having a fluorene structure, then the resin achieves low refractive index and high dispersion properties, but precipitates form during storage requiring heating for redissolution
Solution Approach 1:
The invention changes the functional composition parameters by introducing a monofunctional (meth)acrylate having a fluorene structure alongside the bifunctional (meth)acrylate with fluorene structure. This parameter change in the resin composition prevents precipitate formation while maintaining the low refractive index and high dispersion optical properties, eliminating the need for heating during storage.
2Stability of the object's composition
If precipitates are formed in the resin precursor composition, then heating is required to redissolve them, but this increases production cost and may degrade components
Solution Approach 1:
The invention applies preliminary anti-action by pre-formulating the resin precursor composition with a specific combination of bifunctional and monofunctional (meth)acrylates having fluorene structures. This preliminary formulation prevents precipitate formation from occurring in the first place during storage, thereby eliminating the need for subsequent heating treatment and avoiding associated production costs and component degradation.
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 composition prevents precipitate formation during storage, eliminating the need for heating and maintaining excellent optical properties suitable for close-contact multilayer type diffractive optical elements.
Implementation Method 1
a photopolymerization initiator (component C)
Data Source
AI summary
Disclosed is a resin precursor composition including a bifunctional (meth)acrylate containing a fluorine atom, a bifunctional (meth)acrylate having a fluorene structure, and a photopolymerization initiator, the resin precursor composition in which the formation of precipitates during its storage is suppressed; and a resin obtained from the same.Specifically disclosed is a resin precursor composition that contains a bifunctional fluorine-containing (meth)acrylate (component A); a (meth)acrylate having a fluorene structure (component B); and a photopolymerization initiator (component C), wherein the component B includes a bifunctional (meth)acrylate having a fluorene structure (b-1) and a monofunctional (meth)acrylate having a fluorene structure (b-2) at a molar ratio (b-1):(b-2) of 90:10 to 70:30.