Fatty Acid Ester Plasticizers for Animal Parasite Control Mouldings
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Solution Overview
Problem
Existing active compound-containing moulded bodies for controlling parasites in animals rely on phthalic esters, which are toxicologically hazardous and environmentally contaminating, and often lead to demixing with polyolefin or vinyl resin matrices, impairing their physicochemical properties and long-term activity.
Innovation Solution
Employing fatty acid esters of polyhydric alcohols, such as di- and triglycerides or propylene glycol esters, which are polar compounds compatible with nonpolar polyolefin and vinyl resin matrices, enhancing the migration of active compounds and maintaining or improving the physicochemical properties of the moulded bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If phthalic esters are used as additives in polyolefin or vinyl resin matrices, then the moulded bodies can be produced with good processability, but the moulded bodies exhibit toxicological hazards and environmental contamination
Solution Approach 1:
The patent removes phthalic esters from the formulation entirely and replaces them with fatty acid esters of polyhydric alcohols (such as diglycerides, triglycerides, or propylene glycol esters). This extraction of the harmful substance while maintaining the functional requirements resolves the contradiction between ease of manufacture and toxicological safety.
Solution Approach 2:
The invention changes the chemical parameter of the ester additive from phthalic esters to fatty acid esters with specific chain lengths (C6-C18). This parameter change maintains the desired processability and physicochemical properties while eliminating the toxicological and environmental problems associated with phthalates.
2Stability of the object's composition
If polar compounds are combined with nonpolar plastics, then the compatibility should be poor, but the patent achieves good compatibility and prevents demixing
Solution Approach 1:
The patent selects fatty acid esters with specific chain lengths (C6-C18) that have appropriate polarity characteristics. By carefully controlling the chain length and saturation of the fatty acid component, the invention achieves optimal compatibility between the polar ester additive and nonpolar polyolefin matrix, preventing demixing and phase separation.
Solution Approach 2:
The invention creates a composite system where fatty acid esters of polyhydric alcohols are combined with polyolefin or vinyl resin matrices. This composite approach achieves synergistic compatibility, where the specific molecular structure of the fatty acid esters ensures good dispersion and stability within the nonpolar polymer matrix without causing phase separation.
3Ease of manufacture
If conventional plasticizers are used to improve processability, then the moulded bodies show good manufacturing properties, but the long-term activity and residual effects are impaired
Solution Approach 1:
The patent changes the molecular parameters of the ester additive to achieve the right balance between processability and long-term activity. Fatty acid esters with chain lengths of C6-C18 provide optimal viscosity and migration characteristics, ensuring good manufacturing properties while maintaining sustained release of active compounds for up to nine months.
Solution Approach 2:
The invention ensures continuous and sustained migration of active compounds from the polymer matrix over an extended period. The fatty acid esters facilitate a controlled, continuous release mechanism that maintains both good initial processability and prolonged long-term activity, avoiding the rapid depletion seen with conventional plasticizers.
4Duration of action of moving object
If the migration of active compounds is increased to improve activity, then the knock-down and residual effects are enhanced, but the physicochemical properties of the polymer matrix are impaired
Solution Approach 1:
The patent optimizes the chain length and structure of the fatty acid ester additive to achieve the perfect balance between active compound migration and matrix integrity. Esters with C6-C18 chain lengths provide sufficient polarity to enhance active compound migration for improved knock-down and residual effects, while maintaining adequate compatibility to preserve the mechanical and physical properties of the polymer matrix.
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 use of fatty acid esters improves the processability and long-term activity of the moulded bodies without compromising their physicochemical properties, providing effective and environmentally friendly control of parasites in animals for up to nine months.
Implementation Method 1
These novel ingredients should preferably increase the migration of the active compounds from the polymer matrix
Implementation Method 2
these fatty acid esters are polar compounds whereas the said polyolefins and vinyl resins are relatively nonpolar plastics
Data Source
AI summary
The present invention relates to active compound-containing moulded bodies for external use against parasites on animals.