Buffered Peroxide Cleaning Composition for Stable Antimicrobial Action

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Solution Overview

Problem

There is a need for efficient, cost-effective, and environmentally friendly cleaning compositions that can reduce and eliminate microorganisms on hard and soft surfaces without relying on harsh chemicals or complex activators, while being safer for consumers and more environmentally friendly.

Innovation Solution

Aqueous cleaning compositions comprising hydrogen peroxide, salicylic acid, furoic acid, or formic acid, an anionic surfactant, and a pH buffer, with a pH range of 2.8 to 3.5, which exhibit synergistic antimicrobial efficacy and are stable for extended periods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional harsh chemicals and complex activators are used for cleaning and disinfecting surfaces, then antimicrobial efficacy is improved, but consumer safety and environmental friendliness deteriorate

Engineering Contradiction:
Improveantimicrobial efficacyVSAvoidconsumer safety and environmental impact
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters by using low levels of hydrogen peroxide (0.05-4% by weight) combined with specific weak acids (salicylic, furoic, or formic acid) at controlled concentrations (0.01-0.25% by weight). This parameter optimization maintains antimicrobial efficacy while reducing the need for harsh chemicals and complex activators like TAED, thereby improving consumer safety and environmental friendliness

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite cleaning system by combining hydrogen peroxide with specific weak acids (salicylic acid, furoic acid, or formic acid) and anionic surfactants. This composite approach produces synergistic effects that enhance antimicrobial activity while using milder individual components, eliminating the need for harsh chemicals and complex activators

Inventive Principle:
Principle #40Composite materials

2Productivity

If high concentrations of hydrogen peroxide are used to achieve rapid microbial reduction, then antimicrobial speed is improved, but storage stability and safety deteriorate

Engineering Contradiction:
Improvespeed of microbial reductionVSAvoidstorage stability
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent optimizes the hydrogen peroxide concentration to a low range (0.05-4% by weight) and combines it with specific weak acids buffered to pH 2.8-3.5. This parameter change enables the composition to achieve rapid microbial reduction (log 2.5 reduction within 60 seconds) while maintaining storage stability for at least 24 months, avoiding the instability and safety issues associated with high concentrations

Inventive Principle:
Principle #35Parameter changes

3Reliability

If complex activators such as TAED are used to enhance cleaning performance, then cleaning efficacy is improved, but formulation complexity and cost increase

Engineering Contradiction:
Improvecleaning efficacyVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates complex activators such as TAED from the formulation. Instead, it uses a simplified system comprising hydrogen peroxide, specific weak acids (salicylic, furoic, or formic acid), and anionic surfactants. This extraction of unnecessary components reduces formulation complexity while maintaining cleaning efficacy through the synergistic action of the remaining ingredients

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the chemical parameters by using low levels of hydrogen peroxide (0.05-4% by weight) combined with specific weak acids (salicylic, furoic, or formic acid) at controlled concentrations (0.01-0.25% by weight). This parameter optimization maintains antimicrobial efficacy while reducing the need for harsh chemicals and complex activators like TAED, thereby improving consumer safety and environmental friendliness

Inventive Principle:
Principle #35Parameter changes

Solution Approach 3:

The patent creates a composite cleaning system by combining hydrogen peroxide with specific weak acids (salicylic acid, furoic acid, or formic acid) and anionic surfactants. This composite approach produces synergistic effects that enhance antimicrobial activity while using milder individual components, eliminating the need for harsh chemicals and complex activators

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 compositions achieve at least a log 2.5 reduction in microbial colonies within 60 seconds and maintain efficacy for up to 24 months, providing effective cleaning and disinfection of surfaces without irritating the skin or causing environmental harm.

Implementation Method 1

aqueous cleaning compositions comprising (a) hydrogen peroxide, (b) at least one acid selected from the group consisting of salicylic acid, furoic acid and formic acid

Methodology Applied
Scientific EffectOxidation: Oxidation

Implementation Method 2

Exposure of a test suspension of either Candida albicans or Klebsiella pneumoniae (1-5×108 cfu per ml) to a composition of the invention results in at least a log 2.5 reduction in the number of colony forming units within 60 seconds

Methodology Applied
Scientific EffectSynergistic antimicrobial action:

Implementation Method 3

aqueous cleaning compositions comprising (a) hydrogen peroxide, (b) at least one acid selected from the group consisting of salicylic acid, furoic acid and formic acid, (c) an anionic surfactant

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Implementation Method 4

the compositions have a pH of from 2.8 to 3.5

Methodology Applied
Scientific EffectpH buffering:

Data Source

PatentUS20250236819A1Cleaning composition
Publication Date: 2025.07.24 HALEON UK IP LTD
  • US20250236819A1 patent drawing

AI summary

The present invention relates to cleaning compositions comprising low levels of hydrogen peroxide and at least one acid selected from the group consisting of salicylic acid, furoic acid and formic acid. The compositions and methods of the invention are particularly suitable for use in household cleaning, for example in hard-surface cleaning or cleaning soft surfaces such as textiles and laundry.