Polyethylene Matrix for Sustained Insecticide Release
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Solution Overview
Problem
Current flea and tick control products for pets often have short-lasting efficacy and can cause irritation, with existing formulations releasing insecticides too quickly, leading to inadequate protection against ectoparasites.
Innovation Solution
An extended-release plastic matrix formulation (PMF-ExR) using a polyethylene-based polymer matrix with dinotefuran and flumethrin as active components and a chlorinated paraffin or epoxidized triglyceride as a plasticizer, designed for slow and sustained release over several months, incorporated into wearable devices like collars to provide long-lasting protection against fleas and ticks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If conventional flea and tick control products are used, then they provide initial protection against ectoparasites, but the efficacy lasts only a short period due to rapid release of insecticides
Solution Approach 1:
The patent changes the physical and chemical parameters of the insecticide formulation by incorporating it into a plastic matrix with specific plasticizers, transforming the release characteristics from rapid to extended/sustained release over several months, thereby resolving the contradiction between initial protection and prolonged efficacy
Solution Approach 2:
The patent uses composite materials consisting of a plastic matrix combined with specific plasticizers (chlorinated paraffin or epoxidized triglyceride) to create a formulation that controls the release rate of insecticides, enabling sustained protection while maintaining reliability over extended periods
2Reliability
If existing insecticide formulations are applied, then they provide flea and tick control, but they cause irritation to the treated animals
Solution Approach 1:
The patent modifies the formulation parameters by using a plastic matrix system with controlled release characteristics, which maintains effective insecticide concentrations for protection while reducing peak concentrations that cause irritation, thereby achieving both effectiveness and reduced harmful effects
Solution Approach 2:
The plastic matrix acts as an intermediary between the insecticide and the animal, controlling the release and interaction of the active ingredients with the animal's skin and fur, thus maintaining efficacy while minimizing irritation
3Duration of action of moving object
If traditional flea and tick products are used, then they provide initial protection, but the protection is lost after bathing due to quick wash-off
Solution Approach 1:
The patent employs composite material technology where the insecticide is integrated into a plastic matrix structure, creating a formulation that is resistant to washing and maintains stability throughout the product's lifespan, ensuring protection persists even after bathing
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 PMF-ExR formulation achieves extended protection against fleas and ticks, maintaining efficacy even after bathing and for durations exceeding six months, with no adverse reactions reported in animal studies, demonstrating a significant improvement over existing products.
Implementation Method 1
a plasticizer formulated to be between 2% and 7% of the total formulation by weight... designed for slow and sustained release over several months
Data Source
AI summary
An extended-release plastic matrix formulation (PMF-ExR) comprising a polyethylene-comprising polymer, a plasticizer, and at least one insecticide as active components is described. The PMF-ExR may be used in the manufacture of a wearable device for treating ectoparasitic infestations.