Odorless UV-Curable Acrylic Monomer Solution
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Solution Overview
Problem
Traditional two-part acrylic nail systems suffer from strong odors due to ethyl methacrylate, which are unpleasant for clients and potentially hazardous for nail technicians, and existing odorless alternatives often result in nails that are brittle, yellow, or difficult to file.
Innovation Solution
A two-part acrylic nail monomer solution comprising 50-65 wt% 2-ethoxyethyl methacrylate, 17-35 wt% hydroxypropylmethacrylate, crosslinkers, and curing agents, which cures under UV light, reducing odors, improving cure properties, and preventing yellowing, while maintaining ease of filing and lower exotherm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional ethyl methacrylate monomer liquid is used, then the acrylic nail system provides good workability and durability, but it generates strong offensive odors that are unpleasant for clients and potentially hazardous for nail technicians
Solution Approach 1:
The patent changes the chemical composition parameters of the monomer liquid by replacing ethyl methacrylate with alternative monomers such as 2-ethoxyethyl methacrylate, 2-hydroxyethyl methacrylate, and 2-hydroxypropyl methacrylate. This substitution eliminates the offensive odor while maintaining the necessary workability and curing properties for acrylic nail application
Solution Approach 2:
The patent creates a composite monomer liquid formulation that combines multiple monomers and additives in specific proportions. This composite approach allows the system to achieve both odorless operation and adequate workability by synergistically combining the properties of different monomeric components
2Object-affected harmful factors
If odorless monomer liquids such as 2-hydroxyethyl methacrylate and 2-hydroxypropyl methacrylate are used, then the odor is eliminated, but the formed nail becomes brittle and cures with a gummy surface that is difficult to file
Solution Approach 1:
The patent optimizes the concentration ratios of different monomers in the formulation. By adjusting the proportions of 2-ethoxyethyl methacrylate, 2-hydroxyethyl methacrylate, and 2-hydroxypropyl methacrylate, along with crosslinkers and inhibitors, the system achieves both odorless operation and improved mechanical strength that prevents brittleness
Solution Approach 2:
The patent formulates a composite monomer system that combines multiple monomers with crosslinking agents and stabilizers. This composite structure provides both the odorless property and the structural integrity needed to prevent nail brittleness, while the crosslinking components ensure proper curing without gummy surfaces
3Object-affected harmful factors
If odorless monomer systems are used, then the odor is reduced, but the nails exhibit significant yellow color formation immediately upon application and with time
Solution Approach 1:
The patent modifies the chemical composition by selecting monomers with better color stability properties and adding specific stabilizers. The formulation parameters are optimized to prevent yellowing while maintaining the odorless characteristic
Solution Approach 2:
The patent introduces stabilizing agents as intermediary components that prevent the yellowing reaction. These additives act as mediators between the monomer system and environmental factors that cause discoloration, protecting the nail from yellow color formation
4Object-affected harmful factors
If UV-curable monomer systems are used, then the odor is eliminated and curing is improved, but the system becomes difficult to work with and the formed nails exhibit brittleness
Solution Approach 1:
The patent adjusts the photoinitiator concentration and UV wavelength parameters to optimize both workability and curing effectiveness. By fine-tuning these parameters, the system maintains ease of application while achieving proper UV cure without excessive brittleness
Solution Approach 2:
The patent creates a composite formulation that combines UV-curable monomers with traditional acrylic components. This hybrid composite system provides the odorless UV curing benefit while maintaining the workability and flexibility needed for easy application by nail technicians
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 solution significantly reduces odors, enhances surface hardness, prevents yellowing, and offers a simpler application process with lower exotherm, resulting in a hard, easy-to-file acrylic nail coating.
Implementation Method 1
a two-part acrylic formulation... that cures under UV light
Data Source
AI summary
A mixture of an acrylic nail monomer liquid of the present invention with a polymer powder enables one to form an artificial nail or a nail coating in a way that is similar to traditional two-part systems, but that cures under UV or LED light. Characteristics or advantages of the use of the inventive monomer may include significantly odors reduction associated with a traditional two-part acrylic nail formation; an increase of surface hardness; a reduction of the yellowing; lower cost of the components; a simple application procedure; a long open time to sculpt the nail; a lower exotherm profile compared to similar nail formulations; and a curing of the mixture to form a hard acrylic nail that is easy to file.