Unsaturated Compound Composition for Inhibitor-Free MPDAc Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high boiling point of 2-methylene-1,3-propanediol diacetate (MPDAc) requires distillation under reduced pressure to remove polymerization inhibitors, leading to low production efficiency and potential metal corrosion during storage.
Innovation Solution
A composition containing an unsaturated compound and an organic halide with a specific halogen content, which acts as a polymerization inhibitor at room temperature, preventing corrosion without the need for distillation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If distillation under reduced pressure is employed to remove polymerization inhibitor from MPDAc, then polymerization inhibitor is eliminated, but production efficiency decreases due to complex equipment requirements and high energy consumption
Solution Approach 1:
The invention extracts only the necessary function (polymerization inhibition) from the complex distillation process by using a small amount of organic halide additive that can be easily removed through simple heating, eliminating the need for complex reduced pressure distillation equipment while maintaining inhibitor elimination effectiveness
Solution Approach 2:
The invention changes the operating parameters from requiring complex reduced pressure distillation to simple atmospheric heating by selecting organic halides with appropriate boiling points and polymerization inhibition characteristics, thereby simplifying equipment requirements and improving production efficiency
2Stability of the object's composition
If organic halide is added to inhibit polymerization during storage, then storage stability is improved, but metal container corrosion occurs at high concentrations
Solution Approach 1:
The invention optimizes the concentration parameter of organic halide to a specific range (1-10,000 ppm) where sufficient polymerization inhibition is achieved while remaining below the threshold that causes metal corrosion, thereby resolving the contradiction between storage stability and corrosion prevention
Solution Approach 2:
The invention selects organic halides with specific molecular structures (formula 2 with various R7 and R8 groups) that replicate the polymerization inhibition function while having reduced corrosivity compared to traditional halide inhibitors, allowing effective inhibition without metal damage
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 while enabling a favorable polymerization reaction without purification operations.
Implementation Method 1
during storage, a polymerization inhibitor is added thereto in order to inhibit a polymerization reaction
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 an unsaturated compound 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.