Rodenticidal Paste Using Cement Solidification for Intestinal Occlusion
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Solution Overview
Problem
Existing rodenticidal baits face challenges with stability and efficacy due to the degradation of anticoagulant active ingredients in acidic pH and humid environments, leading to reduced effectiveness and increased toxicity, while also being costly and eco-toxicologically unfavorable. Additionally, known formulations are not highly palatable and can be ineffective in humid conditions.
Innovation Solution
A rodenticidal formulation comprising an inorganic solidifying agent, a hygroscopic agent that swells in water, a hydrophobic binder, inert fillers, and optional palatable substances, which forms an intestinal blockage without the need for high doses of toxic ingredients, ensuring stability and palatability even in acidic pH and humid conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anticoagulant active ingredients are used in rodenticidal formulations, then rodenticidal efficacy is improved, but stability in acidic pH and humid environments deteriorates
Solution Approach 1:
The patent removes anticoagulant active ingredients from the formulation, replacing them with a mechanical action-based rodenticide (intestinal occlusion through cement solidification). This extraction eliminates the stability problem while maintaining rodenticidal efficacy through an alternative mechanism.
Solution Approach 2:
The patent replaces the chemical mechanism (anticoagulant poisoning) with a mechanical mechanism (physical intestinal occlusion through solidifying cement). This substitution allows the formulation to achieve rodenticidal effects without relying on chemically unstable active ingredients.
2Reliability
If higher quantities of active ingredient are used to compensate for degradation, then rodenticidal efficacy is maintained, but toxicity and economic cost increase
Solution Approach 1:
The patent extracts and removes toxic anticoagulant active ingredients from the formulation, replacing them with non-toxic cement-based materials that achieve rodenticidal effects through mechanical intestinal occlusion rather than chemical poisoning.
Solution Approach 2:
The patent uses inexpensive, non-toxic cement and palatable materials as replaceable bait components that achieve their purpose through mechanical action rather than relying on expensive, toxic, and unstable active ingredients that require frequent replacement due to degradation.
3Reliability
If hydrophobic coating is applied to protect pellets from humidity, then resistance to humidity is improved, but manufacturing complexity increases
Solution Approach 1:
The patent removes the need for separate hydrophobic coating layers by integrating humidity resistance directly into the bait matrix through hydrophobic binders and waxes that are mixed with the cement and palatable materials during manufacturing. This eliminates the need for additional coating steps while maintaining humidity resistance.
Solution Approach 2:
The patent combines the functions of bait matrix, humidity protection, and rodenticidal action into a single integrated formulation where hydrophobic binders and waxes are incorporated throughout the mixture, eliminating the need for separate protective coating layers.
4Ease of operation
If mixing is performed in conventional rotating mixers, then ease of operation is maintained, but mixing time increases
Solution Approach 1:
The patent employs high-shear mixing or vigorous mechanical agitation that creates intense mixing action, dramatically reducing the time required to achieve homogeneous distribution of cement, binders, and palatable materials compared to conventional slow rotating mixers.
Solution Approach 2:
The patent uses dynamic, high-speed mixing mechanisms that adapt to the viscous nature of the formulation, providing intense and rapid mixing action that achieves homogeneity in minutes rather than hours, while remaining operationally simple.
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 formulation achieves high efficacy and palatability, maintaining effectiveness after long storage and in various environmental conditions, reducing the need for toxic substances and improving safety and economic viability, while allowing for use in monitoring baits with conventional traps.
Implementation Method 1
at least one palatable inorganic or organic hygroscopic and/or hydrophilic agent which swells and increases in volume in the presence of water
Implementation Method 2
at least one inorganic solidifying agent and modifier of the pH, capable of solidifying in the presence of water
Implementation Method 3
at least one hydrophobic binder, palatable for rodent species, selected from oils, butters, waxes and vegetable and/or animal fats
Data Source
AI summary
A description is given of a composition suitable for forming a rodenticidal bait in paste, pellet or block form comprising A) at least one inorganic solidifying agent and modifier of the pH, capable of solidifying in the presence of water, B) at least one palatable inorganic or organic hydroabsorbent agent; C) at least one hydrophobic binder, palatable for rodent species; D) at least one inert filler, E) at least one palatable substance to increase the palatability of the bait; F) at least one deterrent bittering agent to prevent accidental ingestions, and optionally G) at least one rodenticidal agent, preferably having an anticoagulant action or a peripheral vasoconstricting action; a sedative or a biological derivative able to perform a rodenticidal action, also aimed at only the control of reproduction; or mixtures thereof.