Menthyl Acetate and Superabsorbent Polymer Malodor Neutralization

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Solution Overview

Problem

Current hygiene products, such as diapers and sanitary napkins, fail to effectively neutralize unpleasant odors associated with urine and menstrual blood, often relying on perfumes that may mask but intensify the issue, rather than truly neutralizing the malodor at low concentrations.

Innovation Solution

A composition combining physiological cooling agents like menthol derivatives with water-absorbing polymers or hydrogels, which are applied in specific ratios to absorb and neutralize malodors, particularly using menthyl acetate and superabsorbent polymers to reduce feminine hygiene malodors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If perfumes are used to mask bad odors in hygiene products, then the perception of malodor is reduced, but the odor components mix and intensify unpleasantly

Engineering Contradiction:
Improveperception of malodorVSAvoidintensified unpleasant odor
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful malodor molecules into beneficial effects by using water-absorbing polymers to trap odor-causing substances and physiological cooling agents to chemically interact with and neutralize odor molecules, transforming the harmful odor problem into a beneficial neutralization process

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

Solution Approach 2:

The patent introduces water-absorbing polymers and physiological cooling agents as intermediary substances that mediate between the malodor source and the user's perception, allowing these intermediaries to absorb and neutralize odor molecules before they reach the user's nose

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If water-absorbing polymers are used to absorb body fluids, then the liquids are stored within the polymer matrix, but the unpleasant odors remain

Engineering Contradiction:
Improveabsorbed liquid volumeVSAvoidremaining malodor
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The patent merges water-absorbing polymers with physiological cooling agents in a single composition, combining the liquid absorption function with the odor neutralization function into one integrated product that performs both tasks simultaneously

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a composite material by combining water-absorbing polymers with physiological cooling agents, resulting in a material that possesses both high liquid absorption capacity and effective odor neutralization properties

Inventive Principle:
Principle #40Composite materials

3Object-affected harmful factors

If stronger fragrances are used to overpower bad odors, then the malodor perception is reduced, but the inherent odor is intensified

Engineering Contradiction:
Improvemalodor perceptionVSAvoidintensified inherent odor
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent converts the approach from masking odors with stronger fragrances to actually neutralizing odor molecules through chemical interaction with physiological cooling agents, transforming the harmful odor into a beneficial neutralization process

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

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 combination of menthol derivatives with superabsorbent polymers significantly reduces malodor intensity, providing effective neutralization without overpowering the odor, as demonstrated by expert panel evaluations in sniffer box tests.

Implementation Method 1

These superabsorbers have the property of absorbing liquids, whereby the substances expand many times their volume. Since the liquids are stored within the polymer matrix, the superabsorbers remain dry on the outside.

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Implementation Method 2

a new composition for fighting particular female body odors... comprising or consisting of (a) at least one physiological cooling agent and (b) at least one water-absorbing polymer and/or hydrogel

Methodology Applied
Scientific EffectChemical interaction: Chemical Bonding

Data Source

PatentUS20240225915A1Compositions for fighting malodors
Publication Date: 2024.07.11 SYMRISE GMBH & CO KG
  • US20240225915A1 patent drawing
  • US20240225915A1 patent drawing
  • US20240225915A1 patent drawing

AI summary

Suggested is a composition for fighting malodors comprising or consisting of (a) at least one physiological cooling gent and (b) at least one water-absorbing polymer and/or hydrogel.