Michael Addition Nail Strengthening Composition

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Solution Overview

Problem

Current nail strengthening treatments, such as those using formaldehyde, often cause adverse side effects like allergic reactions and odor issues, and safer alternatives like citral and citronellal formulations face difficulties in effectively strengthening weak or broken nails without causing discoloration.

Innovation Solution

A method involving a Michael addition treatment composition comprising monoadducts or bisadducts derived from combining α, β unsaturated carbonyl compounds with diamines, applied in an organic or aqueous medium, which penetrates and binds with keratin proteins to strengthen nails without aldehyde components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If formaldehyde treatment is used to strengthen nails, then nail strength is improved, but adverse side effects such as allergic reactions and strong odor occur

Engineering Contradiction:
Improvenail strengthVSAvoidallergic reactions and odor
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The patent removes formaldehyde and other aldehyde components from the nail strengthening formulation entirely. Instead, it uses a Michael addition product comprising a diamine and an unsaturated dicarboxylic acid (such as maleic acid), which provides nail strengthening without the harmful side effects of formaldehyde including allergic reactions and strong odor.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the chemical composition parameters by replacing traditional aldehyde-based strengthening agents with a specific Michael addition product. This substitution maintains the nail strengthening function while eliminating the harmful properties associated with formaldehyde and other aldehydes.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If alternative aldehyde formulations (citral, citronellal, geranial) are used to avoid formaldehyde side effects, then odor and allergy issues are reduced, but nail strengthening effectiveness is insufficient

Engineering Contradiction:
Improveodor and allergy reductionVSAvoidnail strengthening effectiveness
Core Design Contradiction:
Object-affected harmful factorsVSStrength

Solution Approach 1:

The patent changes the chemical approach by using a Michael addition product formed between diamines and unsaturated dicarboxylic acids. This provides superior nail strengthening effectiveness compared to traditional aldehyde alternatives like citral and citronellal, while maintaining the benefit of reduced odor and allergy issues.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite chemical approach by combining diamine compounds with unsaturated dicarboxylic acid derivatives to create a Michael addition product. This composite formulation achieves both effective nail strengthening and the desired safety profile without the limitations of single-component aldehyde alternatives.

Inventive Principle:
Principle #40Composite materials

3Strength

If traditional nail strengtheners are used, then nail strength is improved, but discoloration of the nail plate occurs

Engineering Contradiction:
Improvenail strengthVSAvoiddiscoloration
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent removes the cause of discoloration by eliminating aldehyde components from the formulation. The Michael addition product used in this invention does not cause nail plate discoloration, allowing users to achieve strong nails without the aesthetic deterioration associated with traditional strengtheners.

Inventive Principle:
Principle #2Taking out (Extraction)

4Object-affected harmful factors

If a safe, effective nail strengthening treatment is developed without aldehydes, then adverse reactions are eliminated, but formulation complexity increases

Engineering Contradiction:
Improveadverse reactions eliminationVSAvoidformulation complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent simplifies the formulation by using a specific Michael addition product with well-defined chemical structure and properties. This approach eliminates the need for complex mixtures of multiple aldehyde-based components while achieving safe and effective nail strengthening.

Inventive Principle:
Principle #35Parameter changes

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 treatment composition effectively strengthens and reforms broken nails, reducing pain and promoting healing without causing discoloration or adverse reactions, and can be combined with color components for nail coloring.

Implementation Method 1

a Michael addition product comprising a monoadduct which is a 2-(multi-organo- or siliconyl-amino)succinic acid, ester, amide, anhydride or imide and/or a bisadduct which is an N,N'-bis-(2-succinoylhydroxy)-, or N,N'-bis-(2-succinoyloxy alkylester)-, or, N,N'-bis(2-succinamido)-, or N,N'-bis(2-succinanhydrido)-, or N,N'-bis(2-succinimido)-, α,ω-multi-organo- or siliconyl-diamine

Methodology Applied
Scientific EffectMichael addition reaction: Chemical Bonding

Data Source

PatentUS20250009631A1Method of nail strengthening with a complex michael addition treatment composition
Publication Date: 2025.01.09 WELLA OPERATIONS US LLC
  • US20250009631A1 patent drawing
  • US20250009631A1 patent drawing
  • US20250009631A1 patent drawing

AI summary

A method for treatment of brittle, broken, cracked or otherwise damaged nail plates. The method uses a treatment composition of an aqueous-organic medium containing a Michael addition monoadduct or bisadduct of complex diamine and maleic anhydride.