Powdered Nail Coating Activator for Uniform Curing

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Solution Overview

Problem

Existing nail coating methods using liquid activators for cyanoacrylate monomer compositions often result in uneven curing, leading to premature chipping and uneven gloss due to inconsistent application and solvent evaporation, which reduces the durability and aesthetic appeal of the nail coating.

Innovation Solution

Incorporating a solid activator in powdered form into the polymeric powder, which contacts the cyanoacrylate monomer liquid to initiate polymerization, eliminating the need for a separate activator application and ensuring uniform curing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a liquid activator is applied to cure cyanoacrylate monomer coating, then the coating can be formed, but uneven curing occurs leading to premature chipping and uneven gloss

Engineering Contradiction:
Improvecoating durabilityVSAvoidcuring uniformity
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent combines the activator with the polymeric powder to form a unified powdered composition. This merging ensures that the activator is distributed uniformly throughout the coating material, eliminating the uneven curing problems associated with separate liquid activator application. The combined powder is applied all at once, ensuring consistent curing across the entire nail surface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the physical state of the activator from liquid to solid powder form. This parameter change allows the activator to be incorporated into the polymeric powder mixture, ensuring uniform distribution and consistent curing. The powdered form eliminates the variability in application that occurs with liquid activators, directly addressing the curing uniformity issue.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If solvent is used in the activator formulation, then the activator can be applied easily, but solvent evaporation increases activator concentration leading to excessive curing and brittleness

Engineering Contradiction:
Improveactivator applicationVSAvoidcoating integrity
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent eliminates the solvent component from the activator system by using a powder formulation. This parameter change removes the evaporation issue that causes excessive activator concentration and subsequent coating brittleness. The powder form provides the necessary activator function without the harmful solvent evaporation effect.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent extracts and removes the solvent from the activator formulation, retaining only the active curing components in powder form. This extraction eliminates the source of the problem (solvent evaporation) while preserving the essential function (curing activation), thereby improving coating integrity without sacrificing application feasibility.

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If activator is applied rapidly and evenly, then uniform curing is achieved, but the application process becomes more complex and time-consuming

Engineering Contradiction:
Improvecuring uniformityVSAvoidapplication process
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent merges the activator and polymeric powder into a single unified composition that is applied all at once. This eliminates the need for separate activator application steps, simplifying the overall process while ensuring uniform curing through the inherent uniform distribution of the activator within the powder mixture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The activator is pre-mixed with the polymeric powder before application to the nail. This preliminary action ensures uniform distribution of the activator throughout the coating material, eliminating the need for rapid and precise separate application. The uniform mixing is performed in advance, ensuring consistent curing without complicating the actual nail application process.

Inventive Principle:
Principle #10Preliminary action

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

This approach provides nail coatings with improved durability, reduced chipping, and uniform gloss, enhancing the overall integrity and aesthetic appeal of the nail coating.

Implementation Method 1

the amine active immediately triggers the polymerization of the cyanoacrylate monomer resulting in a gleaming coating

Methodology Applied
Scientific EffectPolymerization: Photopolymerisation

Data Source

PatentUS11285094B2Nail coating compositions and methods having powdered activator
Publication Date: 2022.03.29 HAILE DANNY LEE

AI summary

Compositions, systems, kits and methods for forming a nail coating using a solid activator such as a powdered solid amine or solid component having an amine moiety. The powdered compositions may include a polymeric powder and a solid amine or solid component having an amine moiety. Systems and kits including the powdered composition and a liquid composition comprising a cyanoacrylate monomer are also provided. A method for forming a cosmetic nail coating using a solid activator is also provided. The method may include a) applying a liquid composition to a nail to form a wet nail, the liquid composition comprising a cyanoacrylate monomer, and b) applying to the wet nail a powdered composition, the powdered composition comprising a polymeric powder and a solid amine activator or solid component having an amine moiety.