Ionic Liquid Oral Care Composition for Enamel-Safe Whitening

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Solution Overview

Problem

Current tooth whitening methods are inefficient, as peroxide-based chemicals are highly reactive and can damage tooth enamel, and abrasive agents may not effectively whiten teeth without causing harm, especially for those with dentures or orthodontics, while existing plaque removal methods are mechanical and often ineffective for deep or hidden stains.

Innovation Solution

An oral care composition containing an ionic liquid with a pyrazolium cation and specific anions, which effectively whitens teeth without abrasives, targeting biofilms and stains through gentle yet deep cleaning, inhibiting bacterial growth and plaque formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If peroxide-based chemicals are used to whiten teeth, then teeth whitening effect is improved, but tooth enamel may be damaged and the formulation is difficult to stabilize

Engineering Contradiction:
Improveteeth whitening efficiencyVSAvoidenamel damage and formulation instability
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent uses ionic liquids as intermediary substances that deliver whitening agents to teeth without direct contact damage. The ionic liquid acts as a mediator between the whitening active and the tooth enamel, reducing harmful effects while maintaining whitening efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical and chemical parameters of the whitening formulation by using ionic liquids with specific properties (low volatility, high polarity, tunable solvating power) to stabilize peroxide compounds and control their release, preventing spontaneous decomposition and enamel damage.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If abrasive agents are used to remove stains, then stain removal is improved, but tooth enamel and dental restorations may be damaged

Engineering Contradiction:
Improvestain removal efficiencyVSAvoidenamel and restoration damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical abrasion with chemical action using ionic liquids that dissolve and remove stains through solvation and chelation mechanisms, eliminating the need for abrasive particles that damage enamel and ceramic surfaces.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the mechanism of stain removal from mechanical (abrasive) to chemical (solvation by ionic liquids), utilizing the unique solvating properties of ionic liquids to dissolve stains without physical contact damage.

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If conventional oral care formulations are used, then formulation stability is improved, but teeth whitening and plaque removal effectiveness is reduced

Engineering Contradiction:
Improveformulation stabilityVSAvoidwhitening and plaque removal effectiveness
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent uses composite formulations combining ionic liquids with traditional oral care ingredients, creating a stable yet effective composition that maintains formulation stability while enhancing whitening and plaque removal capabilities through the unique properties of ionic liquids.

Inventive Principle:
Principle #40Composite materials

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 provides effective teeth whitening and plaque removal without damaging enamel, suitable for all teeth types, including those with dentures or orthodontics, using ionic liquids that inhibit bacterial growth and dissolve biofilms, offering a gentler and more efficient alternative to traditional methods.

Implementation Method 1

ionic liquids... have unique solvating properties

Methodology Applied
Scientific EffectSolvation: Solvation

Implementation Method 2

ionic liquids are known to be used in cleaning compositions... inhibit bacterial growth and dissolve biofilms

Methodology Applied
Scientific EffectAntimicrobial action:

Data Source

PatentUS10406090B2Oral care composition containing ionic liquids
Publication Date: 2019.09.10 COLGATE PALMOLIVE CO
  • US10406090B2 patent drawing
  • US10406090B2 patent drawing
  • US10406090B2 patent drawing

AI summary

The present invention relation to an oral care composition comprising an ionic liquid wherein the ionic liquid comprises: (a) a pyrazolium cation and (b) an anion selected from the group consisting of acetate, halide, phosphate, alkyl phosphate, sulphate, alkyl sulphate and tosylate is provided.