Aryl Sulfonate Surfactant Composition for Biodegradable Cleaning
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Solution Overview
Problem
Existing fabric and home care products often require different surfactants for different surfaces to achieve desired benefits, necessitating the development of new surfactants with specific properties.
Innovation Solution
A novel surfactant of formula I, comprising an aryl group, varying R1 and R2 groups, and a C6-C16 aliphatic group R3, which provides improved toxicity and environmental profiles, including enhanced biodegradability compared to aryl-alkyl ketone sulfonates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different surfactants are used for different surfaces to achieve desired benefits, then the cleaning performance on specific surfaces is improved, but the product complexity and the number of required surfactants increase
Solution Approach 1:
The patent applies universality by designing a single surfactant molecule with multiple functional groups (aryl group for hydrophobic interaction, sulfonate group for anionic character and solubility, and aliphatic chain for micelle formation) that enables it to perform effectively across multiple different surfaces and cleaning applications, replacing the need for multiple specialized surfactants
Solution Approach 2:
The surfactant represents a composite molecular structure combining different functional moieties (aryl, sulfonate, aliphatic) into a single molecule, where each component contributes specific properties that collectively provide broad-spectrum cleaning effectiveness across various surfaces
2Reliability
If conventional surfactants are used to achieve cleaning benefits, then cleaning performance is achieved, but toxicity and environmental impact worsen
Solution Approach 1:
The patent applies parameter changes by modifying the molecular structure parameters of the surfactant - specifically using a sulfonate group instead of traditional sulfate or carboxylate groups, and incorporating an aryl group with specific aliphatic chain length - to achieve both effective cleaning performance and improved biodegradability, thereby reducing toxicity while maintaining cleaning efficacy
3Reliability
If conventional surfactants are used to achieve cleaning benefits, then cleaning performance is achieved, but biodegradability worsens
Solution Approach 1:
The patent improves biodegradability by changing the molecular parameters - specifically incorporating a sulfonate group which is more readily degraded by microorganisms compared to traditional surfactant groups, and using an aryl group with C6-C16 aliphatic chains that balance cleaning performance with enhanced biodegradability compared to conventional surfactant structures
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 surfactant of formula I offers good toxicity and environmental profiles, along with improved biodegradability, making it suitable for various fabric and home care products.
Implementation Method 1
R2 is H or SO3X wherein X is an alkali metal, alkali-earth metal or ammonium
Implementation Method 2
Ar represents an aryl group; R3 is a C6-C16 aliphatic group
Data Source
AI summary
A fabric and home care product comprising a surfactant of formula Iwherein Ar represents an aryl group;R1 is H or a group of formula OR wherein R is H or SO3X wherein X is an alkali metal, alkali-earth metal or ammonium of general formula R′R″R′″R″″N wherein R′, R″, R′″ and R″″ are independently chosen from hydrogen or a hydrocarbyl group which can be optionally substituted and/or interrupted by one or more heteroatom containing groups; R2 is H or SO3X wherein X is an alkali metal, alkali-earth metal or ammonium of general formula R′R″R′″R″″N wherein R′, R″, R′″ and R″″ are independently chosen from hydrogen or a hydrocarbyl group which can be optionally substituted and/or interrupted by one or more heteroatom containing groups; with the proviso that R1 and R2 are different groups when R2 is SO3X, R1 is H or OR with R is H when R2 is H, R1 is OR with R is SO3X R3 is a C6-C16 aliphatic group.