Crosslinking Agent for Photosensitive Resin Stability
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Solution Overview
Problem
Current photosensitive resins used in precision electronics and display production face issues with mechanical properties, storage stability, and solubility due to hydrolysis and low adhesion, leading to defects and reduced processing efficiency.
Innovation Solution
A crosslinking agent compound with a specific chemical structure, represented by Chemical Formula 1, is introduced, featuring silicon-containing functional groups that enhance solubility and dispersibility, and inhibit crosslinking reactions at room temperature, allowing for improved mechanical properties and storage stability upon heat treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional crosslinking agents are added to photosensitive composition, then mechanical properties are improved, but solubility and dispersibility are insufficient
Solution Approach 1:
The patent modifies the molecular structure parameters of the crosslinking agent by introducing specific functional groups (carboxyl, hydroxyl, amino groups) and controlling molecular weight distribution, which simultaneously improves both mechanical properties and solubility in the photosensitive composition
Solution Approach 2:
The invention creates a composite crosslinking system by combining multiple crosslinking agents with different functional groups and molecular weights, achieving synergistic effects that improve both mechanical strength and dispersibility in the photosensitive resin
2Strength
If crosslinking agents are added to improve mechanical properties, then adhesion is improved, but uniformity of composition is difficult to achieve
Solution Approach 1:
The patent optimizes the molecular weight and functional group density of crosslinking agents to balance adhesion performance with compositional uniformity, preventing aggregation while maintaining bonding strength
Solution Approach 2:
The invention introduces crosslinking agents with different local chemical properties (acidic, basic, neutral groups) that interact differently with the photosensitive resin matrix, achieving uniform distribution while maintaining localized adhesion enhancement
3Productivity
If polyamide acid is used as photosensitive resin, then processing efficiency is improved, but storage stability deteriorates due to hydrolysis
Solution Approach 1:
The patent introduces crosslinking agents as intermediary substances that form protective networks within the polyamide acid matrix, preventing water molecules from accessing and hydrolyzing the polymer chains, thus maintaining storage stability while preserving processing efficiency
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 crosslinking agent compound achieves excellent solubility and mechanical strength in photosensitive materials, ensuring uniformity and reliability by controlling crosslinking reactions, thereby improving the stability and efficiency of the photosensitive composition and material production.
Implementation Method 1
R1 and R2 are each independently a silicon-containing monovalent functional group
Implementation Method 2
allowing for improved mechanical properties and storage stability upon heat treatment
Data Source
AI summary
The present invention relates to a crosslinking agent compound in which a terminal crosslinkable functional group is capped with a silane-based protecting group, a photosensitive composition including the same, and a photosensitive material using the same.