Seed Coating Composition for Hydrophobic Active Ingredient Release
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Solution Overview
Problem
Existing seed coating compositions face challenges in facilitating the movement of hydrophobic and water-insoluble active ingredients while maintaining desirable seed coating properties such as water permeability and preventing seed germination issues.
Innovation Solution
A seed coating composition comprising one or more biologically active ingredients and a wax and/or polymeric carbohydrate, with a polymeric binder content of 10% or less by total weight of the wax and polymeric carbohydrate together, to enhance bio-efficacy and systemic uptake by plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydrophobic and water-insoluble active ingredients are included in the seed coating, then the coating can provide protective substances to seedlings, but the active ingredient may be retained in the coating or released more slowly than required, decreasing efficacy
Solution Approach 1:
The patent changes the chemical composition parameters of the coating by limiting polymeric binder to 10% or less and specifying wax and polymeric carbohydrate content, which alters the release kinetics of hydrophobic active ingredients to achieve faster and more effective release
Solution Approach 2:
The patent uses a composite coating system combining wax, polymeric carbohydrates, and minimal polymeric binder to create a matrix that facilitates controlled release of hydrophobic active ingredients while maintaining coating integrity
2Stability of the object's composition
If the seed coating contains conventional polymeric binders, then the coating structure is stable, but the active ingredient mobility is restricted and bio-efficacy is decreased
Solution Approach 1:
The patent dramatically reduces polymeric binder content to 10% or less of total weight, fundamentally changing the coating's chemical composition to enhance active ingredient mobility while maintaining structural stability through alternative components
Solution Approach 2:
The patent extracts and removes excessive polymeric binder from the coating formulation, eliminating the component that restricts active ingredient mobility while retaining essential coating functions through wax and polymeric carbohydrates
3Ease of operation
If wax and polymeric carbohydrate are used as coating components, then water permeability is maintained, but the coating may affect seed germination if composition is not optimized
Solution Approach 1:
The patent optimizes the quantitative composition parameters of wax and polymeric carbohydrates, specifying precise weight ratios that balance water permeability with germination safety, ensuring the coating remains beneficial rather than harmful
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 composition improves the bio-efficacy of active ingredients by facilitating their release and uptake by plants, while retaining desirable seed coating properties such as water permeability, abrasion resistance, and flowability.
Implementation Method 1
the active ingredient may be retained in the coating or released more slowly than required... facilitate the overall movement of active ingredients
Implementation Method 2
the seed coating itself should have the conventional and desirable seed coating properties, such as water permeability
Data Source
AI summary
The invention is directed to a seed coating composition comprising one or more active ingredients, to a method and use for improving the bio-efficacy of an active ingredient in a seed coating, and to a coated seed.The seed coating composition of the invention further comprises a wax and/or polymeric carbohydrate and wherein said seed coating composition has an amount of polymeric binder excluding wax and polymeric carbohydrate of 10% or less by total weight of the wax and polymeric carbohydrate together.