Antimicrobial Composition Cationic Polymer Synergy
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Solution Overview
Problem
Current antimicrobial agents face challenges in achieving superior microbicidal efficacy and malodor control, particularly in disinfection applications, where enhanced performance and prolonged antimicrobial effects are desired.
Innovation Solution
A combination of cationic polymers with specific molecular weights and antimicrobial agents such as halophenols, nitrophenols, bisphenols, or quaternary ammonium compounds, along with surfactants and thickening agents, is used to create a formulation that improves antimicrobial performance and malodor control, suitable for various consumer products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional antimicrobial agents are used alone, then the formulation is simple, but the microbicidal efficacy and malodor control performance are insufficient
Solution Approach 1:
The patent combines cationic polymers with specific antimicrobial agents (halophenols, nitrophenols, bisphenols, or quaternary ammonium compounds) to create a synergistic formulation. This merging of components enhances microbicidal efficacy and malodor control performance beyond what single agents can achieve alone, directly resolving the contradiction between simplicity and effectiveness.
Solution Approach 2:
The invention uses composite material formulations consisting of cationic polymers and antimicrobial agents. This composite approach allows the formulation to achieve superior antimicrobial performance and prolonged effect duration while maintaining manageable complexity through defined component relationships and concentration ranges.
2Reliability
If higher concentrations of antimicrobial agents are used, then the microbicidal efficacy is improved, but the safety and potential harm to users increases
Solution Approach 1:
The patent optimizes the molecular weight parameters of cationic polymers (specifically polyquaternium-2 with defined molecular weight ranges) and adjusts concentration parameters of antimicrobial agents to achieve effective antimicrobial performance while minimizing harmful effects. This parameter optimization allows high efficacy at lower, safer concentrations.
Solution Approach 2:
Cationic polymers act as intermediaries that enhance the effectiveness of antimicrobial agents, allowing lower concentrations of active antimicrobial components to achieve the desired effect. This mediator approach reduces direct exposure to high concentrations of potentially harmful antimicrobial agents while maintaining superior microbicidal efficacy.
3Duration of action of stationary object
If short-acting antimicrobial agents are used, then the formulation is simpler, but the duration of antimicrobial effect is insufficient
Solution Approach 1:
The combination of cationic polymers with antimicrobial agents creates a formulation where the polymer provides prolonged release and sustained activity. This merging extends the duration of antimicrobial effect significantly compared to using short-acting agents alone, while the formulation remains manageable through defined component specifications.
Data Source
AI summary
The present disclosure relates to an antimicrobial composition comprising a first antimicrobial agent selected from the group consisting of benzalkonium salts, Triclocarban, Diclosan, Triclosan, or the combination thereof; and a second antimicrobial agent which is the cationic polymer having a weight average molecular weight of 1,000 to 50,000 represented by general formula (I). The present disclosure further relates to a personal care composition comprising the same.