Peracetic Acid Disinfectant Composition for Non-Corrosive Surface Sterilization

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Solution Overview

Problem

Chlorine-based disinfectants are corrosive to metals and alloys in the healthcare sector and lose effectiveness against Clostridium difficile when organic matter is present, necessitating a more effective and safe disinfection method.

Innovation Solution

A disinfectant composition comprising a source of acetyl radicals, a source of peroxygen to form peracetic acid, and additional ingredients like pH modifiers, chelating agents, surfactants, and corrosion inhibitors, formulated into tablets or water-soluble sachets to provide a non-corrosive and potent disinfectant solution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chlorine release tablets are used for disinfection, then disinfection effectiveness is achieved, but corrosion to metals and alloys occurs

Engineering Contradiction:

Improvedisinfection effectivenessVSAvoidcorrosion to metals

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters by replacing chlorine-based active ingredients with peracetic acid (formed from acetyl radicals and peroxygen). This parameter change maintains disinfection effectiveness while eliminating the corrosive properties of chlorine to metals and alloys

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the harmful corrosive effect of chlorine into a beneficial non-corrosive disinfectant. By using peracetic acid instead of chlorine, the solution maintains strong disinfection capability while removing the harmful corrosion effect on metal surfaces

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If chlorine disinfectants are used, then general disinfection is achieved, but effectiveness against Clostridium difficile is weakened when organic matter is present

Engineering Contradiction:

Improvedisinfection effectivenessVSAvoideffectiveness against Clostridium difficile in presence of organic matter

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent changes the chemical nature of the active ingredient from chlorine to peracetic acid, which has different reactivity characteristics. Peracetic acid maintains effectiveness against spores like Clostridium difficile even in the presence of organic matter, unlike chlorine which is inactivated by organic substances

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 composition effectively disinfects surfaces, including those with organic matter, without corroding metals and maintains potency quickly, providing a safer and more consistent disinfection method than traditional chlorine tablets.

Implementation Method 1

a first active ingredient comprising a source of acetyl radicals, and a second active ingredient comprising a source of peroxygen, the composition being soluble in water to provide a solution of peracetic acid

Methodology Applied

Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

a second active ingredient comprising a source of peroxygen

Methodology Applied

Scientific EffectOxidation: Oxidation

Data Source

PatentUS10827752B2Disinfectant composition

Publication Date: 2020.11.10 MTP INNOVATIONS

AI summary

This invention relates to disinfectant compositions comprising a first active ingredient comprising a source of acetyl radicals, and a second active ingredient comprising a source of peroxygen, the composition being soluble in water to provide a solution of peracetic acid.