Hydrophobic Soil Removal Composition for Vehicle Wheels
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Solution Overview
Problem
Conventional wheel cleaners are ineffective in removing hydrophobic and particulate soils, particularly those with high silicate or clay levels, and often contain volatile organic compounds (VOCs) that pose safety and environmental hazards.
Innovation Solution
A hydrophobic and particulate soil removal composition comprising an alkyl ethoxylate mixture and a coco-based fatty acid ester, combined in specific ratios, along with optional chelants, alkaline agents, surfactants, and other detergent components, which penetrates and breaks apart caked soils without using VOCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional alkaline cleaners are used, then general soil removal is achieved, but they are ineffective against hydrophobic and particulate soils with high silicate or clay levels
Solution Approach 1:
The patent changes the chemical parameters of the cleaner by incorporating specific surfactants (alkyl ethoxylates with 2-20 ethoxylate groups and fatty acid esters with specific carbon chain lengths) and adjusting pH to 7-11, creating a formulation that effectively targets hydrophobic and particulate soils including silicate and clay, thereby improving reliability across different regional soil compositions
Solution Approach 2:
The patent uses a composite cleaner formulation combining multiple surfactant types (alkyl ethoxylates and fatty acid esters) with complementary properties, chelants, and alkaline agents to create a synergistic effect that enhances soil removal effectiveness against diverse soil types including hydrophobic and particulate soils
2Reliability
If VOC-based solvents are used, then soil removal is enhanced, but safety and environmental hazards increase due to respiratory irritation and environmental pollution
Solution Approach 1:
The patent extracts and eliminates VOCs from the cleaner formulation, replacing them with non-VOC solvents and alternative surfactant systems that provide equivalent or superior soil removal performance without the harmful respiratory and environmental effects associated with traditional VOC-based cleaners
Solution Approach 2:
The patent changes the solvent system parameters by using non-VOC based solvents and adjusting the surfactant composition (alkyl ethoxylates with specific ethoxylate group counts and fatty acid esters with defined carbon chain lengths) to maintain effective soil removal while eliminating harmful VOC emissions
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 removes hydrophobic and particulate soils from hard surfaces, outperforming traditional VOC-based cleaners in soil removal efficacy while being environmentally friendly and safe.
Implementation Method 1
The hydrophobic and particulate soil removal composition is allowed to penetrate into the soil in order to break apart the soil
Implementation Method 2
The composition effectively removes hydrophobic and particulate soils from hard surfaces
Data Source
AI summary
The invention relates to a hydrophobic and particulate soil removal composition and method for removal of hydrophobic and particulate soil from an article. Stubborn hydrophobic greasy or oily soils, including associated organic particulate soils, such as finely divided elemental carbon, are frequently encountered on hard surfaces including vehicle parts. The composition is selected to provide enhanced soil removal, preferably in vehicle cleaning applications.