Disinfectant Composition Resolving Shine and Stickiness Trade-offs
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Solution Overview
Problem
Existing disinfectant compositions provide long-lasting disinfection but often leave surfaces with a poor shine profile, low drying rate, and a sticky or tacky feel, which is undesirable, especially for surfaces that contact food.
Innovation Solution
A disinfectant composition comprising a nitrogen-containing biocide, such as quaternary ammonium compounds, polybiguanides, or chlorhexidine salts, combined with a polymer and surfactants, that forms a residual protective film on surfaces, providing at least 99.9% microbial reduction for 24 hours while maintaining a good shine and cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If existing disinfectant compositions are used to provide long-lasting disinfection, then biocidal residuality is improved, but surface shine profile deteriorates
Solution Approach 1:
The patent modifies the chemical composition parameters by incorporating specific polymers (polyacrylates, polyvinyl pyrrolidone), surfactants (alkyl polyglucosides, alkyl betaines), and humectants (glycerol, propylene glycol) in controlled concentrations. This parameter optimization allows the formulation to maintain biocidal residuality while improving surface shine and reducing stickiness through balanced interaction between disinfectant agents and surface-modifying components.
Solution Approach 2:
The invention creates a composite disinfectant system that combines multiple functional components: biocidal agents (quaternary ammonium compounds, biguanides), polymers for film formation, surfactants for cleaning, and humectants for moisture control. This composite approach enables simultaneous achievement of long-lasting disinfection and improved surface appearance by leveraging the synergistic effects of different material classes.
2Duration of action of stationary object
If existing disinfectant compositions are used to provide long-lasting disinfection, then biocidal residuality is improved, but drying rate deteriorates
Solution Approach 1:
The patent adjusts formulation parameters by incorporating volatile components (alcohols, water) in optimized ratios with less volatile polymers and surfactants. This parameter balancing enables the composition to dry at an appropriate rate while maintaining residual biocidal activity through the slower-evaporating polymer and surfactant matrix that retains disinfectant agents on the surface.
Solution Approach 2:
The invention ensures continuous useful action by designing a formulation where the drying process itself contributes to disinfection efficacy. As the composition dries, the polymers and surfactants form a persistent film that continuously releases biocidal agents, maintaining protective residuality without requiring complete evaporation of all components. This continuous action bridges the drying phase and the residual disinfection phase.
3Duration of action of stationary object
If existing disinfectant compositions are used to provide long-lasting disinfection, then biocidal residuality is improved, but surface feel deteriorates
Solution Approach 1:
The patent converts the potentially harmful sticky residue into a beneficial protective film by using specific polymers and surfactants that form a non-tacky coating. The polymers (polyacrylates, polyvinyl pyrrolidone) and surfactants (alkyl polyglucosides, alkyl betaines) create a film structure that traps biocidal agents for sustained release while presenting a smooth, non-sticky surface feel, thus transforming the harmful tackiness into a beneficial protective barrier.
Solution Approach 2:
The invention utilizes the film-forming properties of polymers and surfactants to create a porous or microstructured coating that allows breathability and prevents excessive surface adhesion. This porous film structure reduces the sticky feel by allowing moisture vapor transmission while maintaining the biocidal residuality within the film matrix, preventing the formation of a continuous non-porous sticky layer.
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 kills bacteria and germs within 30 seconds to 5 minutes, maintains protection for an extended period, and leaves a surface with a good shine profile, suitable for frequent touches and use, while ensuring excellent cleaning and residual biocidal activity.
Implementation Method 1
The composition comprises a nitrogen containing biocidal compound and a polymer. The composition provides biocidal residuality and at least 99.9% microbial reduction.
Implementation Method 2
combined with a polymer and surfactants, that forms a residual protective film on surfaces, providing at least 99.9% microbial reduction for 24 hours
Implementation Method 3
combined with a polymer and surfactants, that forms a residual protective film on surfaces
Data Source
AI summary
A disinfectant cleaning composition, the composition comprising: a nitrogen containing biocidal compound; a polymer comprising monomers of the following formulae: a) H2C═CR1-CO—NH—R2-N+R3R4R5X— wherein R1 represents hydrogen or C1-C4 alkyl; R2 represents linear or branched C1-C12 alkylene; R3, R4 and R5, independently of one another, each represent hydrogen, C1-C18 alkyl or phenyl; and X— represents an anion selected from the group consisting of halide, sulfate, alkylsulfate, hydroxide, phosphate, acetate and formate; b) 40-75% by weight of N-isopropylacrylamide, based on the water-soluble polymer; c) acrylic and/or methacrylic acid and/or salts thereof; and d) H2C═CR—CO—NH—CR′R″R′″—SO3H, and salts thereof; wherein R, R′ and R″ independently represent hydrogen, C1-C4 alkyl or C1-C4 alkylene, and R′″ independently represents C1-C4 alkyl or C1-C4 alkylene.