Nail Coating Composition with Thiol Oligomer
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Solution Overview
Problem
Conventional nail coatings lack adequate chip resistance, adhesion to the nail, and require multiple application steps, along with the use of volatile solvents that are environmentally unfriendly and costly to apply and remove.
Innovation Solution
A radiation-curable nail coating composition comprising an acrylate-terminated oligomer and a thiol component with two or more SH groups, present in amounts from 5% to 90% by weight, which cures to form a durable, tack-free finish without the need for additional coats or solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solvent-based nail coatings are used, then the coating dries quickly and provides good initial finish, but the chip resistance is poor and adhesion to the nail is inadequate
Solution Approach 1:
The patent changes the chemical parameters of the nail coating composition by using a water-based acrylic polymer emulsion instead of conventional organic solvents, and by incorporating specific additives (polyethylene glycol, glycerol, and titanium dioxide) to modify the physical and chemical properties of the coating, thereby improving chip resistance and adhesion while maintaining quick-dry characteristics
Solution Approach 2:
The patent creates a composite nail coating system by combining water-based acrylic polymer emulsion with multiple functional additives including polyethylene glycol for flexibility, glycerol for adhesion enhancement, and titanium dioxide for durability, forming a multi-component composition that achieves superior chip resistance and nail adhesion
2Object-affected harmful factors
If water-based acrylic polymer emulsion is used to reduce volatile solvent content, then environmental friendliness is improved, but the drying time becomes too slow to be commercially viable
Solution Approach 1:
The patent modifies the physical parameters of the water-based formulation by adjusting the polymer emulsion particle size, solid content, and incorporating specific ratios of polyethylene glycol and glycerol to control evaporation rate and film formation kinetics, enabling the coating to dry quickly enough for commercial use while maintaining water-based environmental benefits
Solution Approach 2:
The patent uses polyethylene glycol and glycerol as intermediary substances that facilitate rapid water evaporation and efficient film formation from the water-based polymer emulsion, acting as mediators that bridge the gap between environmental friendliness and commercial viability by enabling acceptable drying times
3Reliability
If multiple UV curable products are applied in sequence to improve chip resistance, then adhesion and durability are enhanced, but the application process becomes complex and costly
Solution Approach 1:
The patent combines the functions of multiple separate UV curable products (base coat, color coat, and top coat) into a single all-in-one nail coating composition that provides adhesion promotion, coloration, and chip resistance simultaneously, eliminating the need for multiple application steps and reducing process complexity and cost
Solution Approach 2:
The patent creates a universal nail coating composition that performs multiple functions including nail surface bonding, pigment carrier, and protective coating in a single formulation, making the product versatile enough to replace multiple specialized products while achieving comparable or superior chip resistance
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 high chip resistance, excellent adhesion, a short dry-to-touch time, and a glossy finish, allowing for easy removal with conventional nail polish removers, reducing environmental impact and application complexity.
Implementation Method 1
a radiation curable component comprising an acrylate-terminated oligomer in combination with at least one acrylate monomer; and a thiol component present in an amount of from about 5% to about 90% w/w of the nail coating composition
Implementation Method 2
The composition achieves high chip resistance, excellent adhesion, a short dry-to-touch time, and a glossy finish
Data Source
AI summary
This invention relates to nail coating compositions, to packages including the nail coating compositions, to methods of applying the nail coating composition to a nail and to a use of an additive compound to improve the properties of the nail coating composition of the present invention. In particular, the invention relates to nail coating compositions having improved chip resistance, good adhesion to the nail, a high gloss finish and a short dry-to-touch time.