Water-Insoluble Polyfunctional (Meth)acrylamide for UV Curing
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Solution Overview
Problem
Existing curable compositions face challenges in achieving good wettability and adhesion to various substrates while maintaining high curability, transparency, and being suitable for both aqueous and organic systems, with issues such as high energy consumption for drying and environmental impact.
Innovation Solution
A curable composition containing a water-insoluble polyfunctional (meth)acrylamide and a polymerizable compound, which exhibits amphiphilic properties, allowing compatibility with both water and organic solvents, and can be cured using UV or thermal methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is used as a solvent in curable compositions, then environmental impact is reduced and energy consumption for drying is lowered, but the composition requires extremely large amounts of energy to evaporate water
Solution Approach 1:
The patent extracts water from the curable composition by using hydrophobic polyfunctional (meth)acrylamide compounds that are immiscible with water. This allows the composition to be applied as a water-free or low-water formulation, eliminating the need for energy-intensive water evaporation while maintaining environmental benefits.
Solution Approach 2:
The patent changes the polarity parameter of the curable composition by selecting polyfunctional (meth)acrylamides with specific hydrophobicity characteristics (log P values). This parameter adjustment enables the composition to function effectively without water, resolving the contradiction between environmental friendliness and energy consumption.
2Productivity
If water-soluble or water-dispersible resins are used, then water can be evaporated by heat generated during polymerization, but cured films require significant energy input and viscosity adjustment is limited
Solution Approach 1:
The patent removes water from the curable composition entirely by using hydrophobic polyfunctional (meth)acrylamide compounds. This extraction eliminates the need for water evaporation during curing, reducing energy input while maintaining high curing speed through direct polymerization of the organic-based composition.
3Adaptability or versatility
If polyfunctional (meth)acrylamides with various structures are used, then a wide range of properties can be achieved, but achieving good wettability and adhesion to various substrates while maintaining high curability and transparency is challenging
Solution Approach 1:
The patent applies local quality by selecting polyfunctional (meth)acrylamides with specific local molecular characteristics (hydrophobic regions with particular log P values). This localized structural optimization enables the composition to achieve good wettability and adhesion to various substrates while maintaining high curability and transparency, resolving the contradiction between versatility and reliability.
4Adaptability or versatility
If the composition is designed for both aqueous and organic systems, then versatility is improved, but achieving good handleability and adjustable viscosity becomes more difficult
Solution Approach 1:
The patent achieves universality by designing polyfunctional (meth)acrylamide compounds with specific hydrophobicity parameters that enable the composition to function effectively in both aqueous and organic environments. The compounds maintain good handleability and adjustable viscosity through their balanced molecular structure, resolving the contradiction between system compatibility and ease of operation.
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 demonstrates high wettability, adhesion, and transparency, with adjustable viscosity, and can be used in diverse applications including printing inks, coatings, adhesives, and dental materials, while reducing environmental impact.
Implementation Method 1
active energy ray-curable compositions which can be cured with UV, EB (electron beam), etc.
Implementation Method 2
crosslinking agents for thermal polymerization or photopolymerization
Data Source
AI summary
A curable composition which has high curability and high transparency, while exhibiting good adhesion to various base materials, and which is used in both an aqueous system and an organic system and is applied to UV curing and/or thermal curing; a coating agent composition, a bonding agent composition, an adhesive composition, an ink composition, an aqueous ink composition, an ink composition for three-dimensional modeling, an aqueous coating material composition, a sealing agent composition, a nail cosmetic composition, a dental material and a decorative coating agent, each of which contains this curable composition; and cured products and molded articles of these materials. A curable composition contains: (A) a water-insoluble multifunctional (meth)acrylamide; and (B) a polymerizable compound other than the component (A).