(Meth)Acrylic Ester Composition for Storage Impurity Suppression
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Solution Overview
Problem
Ester-compound-containing compositions containing (meth)acrylic acid esters deteriorate in quality during storage due to the generation of impurities such as dimers, which affect the physical properties of the (meth)acrylic polymer.
Innovation Solution
Incorporating specific components such as compounds represented by Formulas (A1) to (A5) and an ester compound (I) in the ester-compound-containing composition, along with a polymerization inhibitor, to suppress the generation of impurities and improve storage stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If an ester-compound-containing composition is stored for a certain period after production, then the composition can be used for future applications, but the quality of the composition deteriorates due to impurity generation
Solution Approach 1:
The patent applies preliminary action by adding specific compounds (aldehydes, ketones, esters, or their combinations) to the ester-compound-containing composition before storage. These compounds are pre-introduced to suppress dimerization reactions and impurity formation during the storage period, thereby maintaining quality stability over time without requiring post-storage treatment.
2Ease of manufacture
If the composition is stored without additives, then the production process remains simple, but impurities such as dimers form during storage
Solution Approach 1:
The patent changes the chemical composition parameters of the storage system by introducing specific compounds (aldehydes, ketones, esters) in controlled amounts. These parameter changes suppress dimerization reactions without significantly complicating the production process, as the additives are mixed in with the existing ester compounds during normal production operations.
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 maintains excellent storage stability, allowing efficient production of a polymerizable composition and (meth)acrylic polymer with reduced impurity formation.
Implementation Method 1
when the ester-compound-containing composition contains a specific component, the generation of impurities such as a dimer of (meth)acrylic acid ester is suppressed
Implementation Method 2
a component B: a polymerization inhibitor
Data Source
AI summary
The present disclosure relates to an ester-compound-containing composition including an ester compound (I) that is one or more of specific alkyl (meth)acrylates, and at least one component selected from component A1 to A5: a specific aldehyde compound, a specific acetal compound, a specific ketal compound, a specific carboxylic acid compound, or a specific alcohol, in which a contained amount of the ester compound (I) is 95% to 99.99% by mass with respect to the total mass of the ester-compound-containing composition.