Dissolved Zinc-Silver Antimicrobial Resin Composition for Optical Stability
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Solution Overview
Problem
Existing antimicrobial materials, such as silver nanoparticles and zeolite, compromise the optical and physical properties of products when applied, and pose safety concerns due to their harmfulness to the human body.
Innovation Solution
An antimicrobial agent comprising a solvent, zinc salt, and silver salt, where zinc nitrate hexahydrate and silver nitrate are dissolved in solvents like isopropyl alcohol or water, is used to maintain antimicrobial activity while minimizing impact on product properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inorganic antimicrobial agents (silver nanoparticles, zeolite, calcium phosphate, zirconium phosphate, silica gel) are used, then antimicrobial activity is achieved, but optical properties and physical properties of the resin are deteriorated
Solution Approach 1:
The patent changes the physical state of antimicrobial agents from solid particles (nanoparticles, zeolite) to dissolved ionic form in a solvent. This parameter change from solid to solution phase allows the antimicrobial agents to be uniformly distributed at molecular level without scattering light, thereby maintaining optical properties while preserving antimicrobial activity through the dissolved zinc and silver ions
Solution Approach 2:
The patent introduces a solvent as an intermediary medium to dissolve the antimicrobial agents (zinc salt and silver salt). This intermediary allows the antimicrobial components to be delivered in a form that does not compromise optical properties, as the dissolved state in solvent enables uniform distribution without light scattering effects that occur with particulate forms
2Reliability
If inorganic antimicrobial agents (silver nanoparticles, zeolite, calcium phosphate, zirconium phosphate, silica gel) are used, then antimicrobial activity is achieved, but safety concerns arise due to harmfulness to the human body
Solution Approach 1:
The patent changes the form of antimicrobial agents from particulate solids to dissolved ionic species in a solvent system. This parameter change to solution phase allows for better control of release and reduced potential for particle-related safety issues, while maintaining antimicrobial efficacy through the bioavailable ionic forms of zinc and silver
Solution Approach 2:
The solvent acts as an intermediary that controls the delivery and release of antimicrobial ions. This intermediary system allows for safer application by preventing direct contact with undissolved particles while still providing effective concentrations of zinc and silver ions for antimicrobial action
3Reliability
If a large amount of antimicrobial material is added to achieve excellent antimicrobial activity, then antimicrobial efficacy is improved, but the physical properties of the resin are significantly influenced
Solution Approach 1:
The patent changes the state of antimicrobial agents from particulate dispersion to molecular dissolution in solvent. This parameter change enables achieving high antimicrobial activity at lower concentrations because the dissolved ionic form is more uniformly distributed and bioavailable, thereby avoiding the need for large amounts that would compromise resin physical properties
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 antimicrobial agent maintains excellent antimicrobial activity with minimal effect on the physical properties of applied products, ensuring safety and compatibility with resin compositions.
Implementation Method 1
a salt of zinc dissolved in the solvent; and a salt of silver dissolved in the solvent
Data Source
AI summary
An antimicrobial agent and an antimicrobial resin composition comprising the same are provided. More particularly, an antimicrobial agent that has excellent antimicrobial activity even when a small amount is added and may minimize the influence on physical properties of an applied product such as an antimicrobial film, an antimicrobial resin composition comprising the same, and methods of preparing the antimicrobial agent and the antimicrobial resin composition are provided.