Acidic Cleaning Composition with Anti-Adhesion Polymer
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Solution Overview
Problem
Current hard surface cleaners are inadequate for effectively removing limescale, soap scum, rust, and other soil deposits from bathroom surfaces, particularly requiring significant scrubbing effort for toilet bowls.
Innovation Solution
A cleaning composition comprising organic acids, nonionic surfactants, and anti-adhesion polymers, specifically lactic acid and phosphoric acid or oxalic acid with a C9-C11 alcohol ethoxylate, and polybetaine, formulated to maintain a pH of 0 to 3, which effectively prevents soil adhesion and facilitates easy removal of deposits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional acidic cleaners are used to remove limescale and rust, then cleaning activity is improved, but significant scrubbing effort is required and consumer reluctance increases
Solution Approach 1:
The patent introduces a polymer intermediary substance that adsorbs to hard surfaces and prevents soil adhesion. This polymer mediator works between the acidic cleaner and the surface deposits, enabling effective cleaning with minimal mechanical scrubbing effort by reducing the direct interaction required between the cleaner and stubborn deposits like limescale and rust
Solution Approach 2:
The polymer component performs preliminary protective action by adsorbing to the hard surface and creating a barrier that prevents soil adhesion before the acidic cleaner is applied. This preliminary action reduces the subsequent scrubbing effort needed to remove limescale, soap scum, and rust deposits
2Reliability
If higher acid concentration is used to improve limescale and soap scum removal, then cleaning effectiveness is improved, but surface damage risk increases
Solution Approach 1:
The patent changes the chemical parameters of the cleaning system by introducing a polymer that modifies the interaction between acid and surface deposits. The polymer alters the cleaning mechanism from direct acid-metal/surface reactions to a more controlled process where the polymer facilitates deposit removal while buffering the harmful effects of high acid concentration on the underlying surface
Solution Approach 2:
The cleaning composition is formulated as a composite system combining acidic cleaners with polymer additives. This composite formulation integrates the limescale-removing capability of acids with the protective and soil-prevention properties of polymers, enabling effective cleaning at lower acid concentrations that reduce surface damage risk
3Device complexity
If conventional cleaners are used without polymers, then formulation simplicity is maintained, but soil adhesion prevention is insufficient
Solution Approach 1:
The polymer acts as an intermediary substance in the cleaning formulation that prevents soil adhesion to hard surfaces. This intermediary component works synergistically with the acidic cleaner to provide comprehensive protection against limescale, soap scum, and other deposits while maintaining formulation feasibility
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 efficiently removes limescale, soap scum, rust, and grease from hard surfaces with minimal scrubbing, providing a convenient and effective cleaning solution for bathroom and kitchen surfaces.
Implementation Method 1
a hydrophilic polymer that adsorbs to hard surfaces
Implementation Method 2
a nonionic surfactant comprising an ethoxylated alcohol
Implementation Method 3
Acidic cleansers are known that purport to provide activity against mineral deposits, e.g., lime scale or soap scum
Data Source
AI summary
The present invention is directed, in certain embodiments, to compositions useful for the removal of grease, lime scale, soap scum, feces, rust or other soils from surfaces such as those found in bathrooms, toilets and kitchens. Methods of removing soils and preventing soil adhesion are also contemplated.