Hydrogen Peroxide Cleaning Compositions with Oxidation-Resistant Acids
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Solution Overview
Problem
Hydrogen peroxide-based disinfectants face instability and prolonged disinfection times, requiring stabilizers and taking 30 minutes or more to effectively disinfect surfaces, while existing combinations with phosphorous-based acids have limitations in stability and efficacy.
Innovation Solution
Aqueous cleaning and disinfecting compositions incorporating hydrogen peroxide with acids or salts resistant to oxidation, such as certain carboxylic acids, which enhance stability and antimicrobial efficacy without phosphorous-containing acids, suitable for use on hard surfaces and capable of being used as concentrated or diluted solutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If hydrogen peroxide solutions are stabilized by adding stabilizers, then stability is improved, but the composition complexity and cost increase
Solution Approach 1:
The patent removes stabilizers from the hydrogen peroxide composition entirely, extracting the problematic component that added complexity. Instead of managing stabilizer interactions, the invention uses hydrogen peroxide alone or with simple cleaning agents, eliminating the need for stabilizer management while maintaining solution stability through proper formulation.
Solution Approach 2:
The patent changes the concentration parameters of hydrogen peroxide to optimize both stability and efficacy. By controlling the hydrogen peroxide concentration within specific ranges and adjusting pH levels, the formulation achieves adequate stability without requiring additional stabilizing agents, thus reducing composition complexity.
2Reliability
If hydrogen peroxide is applied to disinfect surfaces, then antimicrobial activity is achieved, but the disinfection time required increases to 30 minutes or more
Solution Approach 1:
The patent optimizes hydrogen peroxide concentration parameters and pH levels to enhance the rate of antimicrobial action. By adjusting these parameters, the formulation achieves effective disinfection in shorter contact times compared to conventional formulations, reducing the 30-minute requirement while maintaining reliable antimicrobial activity.
Solution Approach 2:
The patent creates composite cleaning compositions that combine hydrogen peroxide with compatible cleaning agents and surfactants. These composite formulations enhance the overall efficacy and speed of action against microorganisms while maintaining the safety and environmental benefits of hydrogen peroxide decomposition.
3Stability of the object's composition
If phosphorous based acid and anionic surfactant are combined, then hydrogen peroxide stability is improved, but cleaning and disinfecting efficacy is limited
Solution Approach 1:
The patent removes phosphorous-based acids from the formulation, extracting the component that provided stability but limited efficacy. Instead, it uses alternative stabilization approaches through pH control and compatible surfactant selection that do not compromise cleaning or disinfecting performance.
Solution Approach 2:
The patent develops composite formulations combining hydrogen peroxide with anionic surfactants and other cleaning agents that are compatible with peroxide stability. These composite materials achieve both adequate stability and superior cleaning-disinfecting efficacy by selecting components that work synergistically without the limitations of phosphorous-based acids.
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 compositions demonstrate improved stability and antimicrobial efficacy, maintaining effectiveness at various dilutions, reducing streaking and residue on surfaces, and are suitable for diverse applications including glass, metal, and grout, while being safe for use on stainless steel and aluminum.
Implementation Method 1
hydrogen peroxide decomposes into innocuous products, i.e., water and oxygen
Implementation Method 2
acids or salts thereof which is resistant to oxidation by hydrogen peroxide
Data Source
AI summary
Cleaning and disinfectant compositions are provided particularly for use with hard surfaces. The compositions include hydrogen peroxide and an acid or salt thereof which is resistant to oxidation other than phosphorous based acids. Replacement of phosphorous based acids with acids of the invention results in improved hydrogen peroxide stability while maintaining or increasing the efficacy of cleaning and antimicrobial activity of the compositions. Typically, acids of the invention include substituted or unsubstituted carboxylic acids such as R4—C (R2) (R3) —R1—COOH. Inventive compositions may further include surfactants, a chelating agent or sequestrant, a water soluble or water dispersible solvent, corrosion inhibitors and other adjuvants well known to those skilled in the art. There are further provided methods of use and methods of preparing inventive compositions.