Unsaturated Compound Composition with Organic Halide Corrosion Control
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Solution Overview
Problem
The polymerization inhibitor in MPDAc requires distillation under reduced pressure for removal, leading to low production efficiency, and the composition can cause metal corrosion during storage.
Innovation Solution
A composition containing an unsaturated compound and an organic halide with a specific halogen content, functioning as a polymerization inhibitor at room temperature while minimizing metal corrosion by controlling the halide presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If distillation under reduced pressure is used to remove polymerization inhibitor from MPDAc, then polymerization inhibitor is eliminated, but production efficiency decreases
Solution Approach 1:
The invention extracts and removes the polymerization inhibitor from MPDAc through a simplified process that avoids complex distillation equipment. The method uses a straightforward purification approach that eliminates the inhibitor while maintaining production efficiency, directly addressing the contradiction between thorough inhibitor removal and efficient production.
Solution Approach 2:
The invention changes the processing parameters by using a simplified purification method instead of distillation under reduced pressure. This parameter change allows for effective inhibitor removal while avoiding the time-consuming and equipment-intensive distillation process, thereby maintaining high production efficiency.
2Reliability
If organic halide is used as polymerization inhibitor during storage, then polymerization is inhibited, but metal container corrosion occurs
Solution Approach 1:
The invention introduces a chelating agent as an intermediary substance that mediates between the organic halide and the metal container. The chelating agent binds to metal ions, preventing the organic halide from directly corroding the metal surface, thus maintaining storage stability while protecting the container from corrosion.
Solution Approach 2:
The invention uses a small amount of chelating agent that can be easily added and works effectively to prevent corrosion. This approach uses a simple, readily available substance that provides protective action during storage without requiring complex or expensive anti-corrosion systems.
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 achieves superior storage stability and inhibits metal corrosion, enabling efficient polymerization without additional purification steps.
Implementation Method 1
at least a part of the organic halide (B) is present as a highly stable radical at temperatures under general storage environments, thereby being capable of functioning like a polymerization inhibitor by capturing a radical from the unsaturated compound (A)
Implementation Method 2
a favorable polymerization reaction of MPDAc, etc. is caused at a comparatively high temperature in allowing for the polymerization reaction on MPDAc, etc., without eliminating the organic halide
Data Source
AI summary
Provided is a composition containing a polymerizable compound, wherein the composition is superior in storage stability and also enables inhibiting corrosion of a metal during storage. The composition contains: an unsaturated compound represented by the following formula (1); and an organic halide, wherein a content of the organic halide in terms of halogen element, based on a content of the unsaturated compound, is 1 ppm by mass or more and 10,000 ppm by mass or less. In the following in the formula (1), R1, R2, R3, R4, R5, and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.