Internal Olefin Sulfonate Detergent Composition for Low-Temperature Stability

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing liquid detergent compositions for textile products face challenges in preventing solid matter formation and separation when exposed to low temperature environments, with existing formulations lacking stability and effective detergent properties.

Innovation Solution

A liquid detergent composition containing an internal olefin sulfonate with a specific mass ratio of sulfonate groups at different positions and an organic solvent with a hydroxy group, which maintains stability and detergent efficacy even at low temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional internal olefin sulfonate formulations are used, then detergent composition can be simplified, but solid matter precipitation and separation occur at low temperatures

Engineering Contradiction:
Improveformulation complexityVSAvoidlow temperature stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies parameter changes by precisely controlling the mass ratio of IO-1S to IO-2S isomers within 0.50-4.20, and selecting organic solvents with specific hydroxy group characteristics. This optimization of compositional parameters prevents solid matter precipitation and separation at low temperatures while maintaining formulation simplicity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite detergent system by combining internal olefin sulfonate (with controlled isomer ratio) and organic solvent with hydroxy group in specific proportions. This composite approach enhances low-temperature stability through synergistic interaction between components, preventing phase separation while keeping the overall formulation relatively simple

Inventive Principle:
Principle #40Composite materials

2Reliability

If internal olefin sulfonate with specific isomer ratio is used, then low temperature stability is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvelow temperature stabilityVSAvoidisomer ratio control
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent defines a practical parameter range (IO-1S/IO-2S mass ratio of 0.50-4.20) that balances manufacturing feasibility with performance optimization. This range is wide enough to accommodate normal manufacturing variations while still achieving the desired low-temperature stability, thus reducing excessive precision requirements

Inventive Principle:
Principle #35Parameter changes

3Stability of the object's composition

If organic solvent with hydroxy group is added, then solubility and stability are improved, but composition complexity increases

Engineering Contradiction:
Improvecomposition stabilityVSAvoidcomposition complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The organic solvent with hydroxy group acts as an intermediary substance that mediates between the internal olefin sulfonate and water phases. It enhances solubility and prevents separation by forming stable molecular interactions, thereby improving composition stability without requiring complex multi-component systems

Inventive Principle:
Principle #24Intermediary (Mediator)

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 prevents solid matter precipitation and separation at low temperatures while maintaining excellent detergent properties for textile products.

Implementation Method 1

an organic solvent having a hydroxy group

Methodology Applied
Scientific EffectSolvation: Solvation

Data Source

PatentUS11248195B2Liquid detergent composition for textile products comprising an internal olefin sulfonate/organic solvent mixture
Publication Date: 2022.02.15 KAO CORP

AI summary

The present invention relates to a liquid detergent composition for textile products containing the following component (A) in an amount of 10% by mass or more and 60% by mass or less, the following component (B), and water:component (A): an internal olefin sulfonate having 14 or more and 16 or less carbon atoms, wherein the mass ratio of an internal olefin sulfonate having 14 or more and 16 or less carbon atoms with the sulfonate group at position 2 or higher and position 4 or lower (IO-1S) to an internal olefin sulfonate having 14 or more and 16 or less carbon atoms with the sulfonate group at position 5 or higher (IO-2S), (IO-1S)/(IO-2S), is 0.50 or more and 4.2 or less; andComponent (B): an organic solvent having a hydroxy group.