Electrostatic Carrier Particles for Uniform Active Agent Coating

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Solution Overview

Problem

Existing methods for applying active agents to inanimate substrates face challenges such as high loss rates due to leaching or interception by non-target organisms, and the difficulty in ensuring uniform application.

Innovation Solution

The use of carrier particles with an electrostatic surface charge, made from organic matter constituents, which adhere uniformly to the surface of inanimate substrates like fertiliser granules or animal feed pellets, effectively distributing active agents such as pesticides, biofertilisers, and probiotics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If active agents are applied directly to inanimate substrates, then the application process is simple, but high loss rates occur due to leaching or interception by non-target organisms

Engineering Contradiction:
Improveapplication process simplicityVSAvoidactive agent loss rate
Core Design Contradiction:
Ease of manufactureVSLoss of substance

Solution Approach 1:

The patent introduces carrier particles as an intermediary between the active agent and the inanimate substrate. These particles carry the active agent and adhere to the substrate surface, preventing direct leaching and reducing interception by non-target organisms. The carrier particles act as a protective medium that releases the active agent gradually, thereby reducing loss while maintaining application simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If conventional methods are used to apply active agents, then the application process is straightforward, but uniformity of application is difficult to achieve

Engineering Contradiction:
Improveapplication process straightforwardnessVSAvoidapplication uniformity
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent applies local quality by coating the inanimate substrate with carrier particles that are uniformly distributed across the surface. Each particle carries the active agent locally, ensuring consistent distribution. The electrostatic charge on the particles enables them to adhere evenly to the substrate, achieving uniform application while keeping the process straightforward.

Inventive Principle:
Principle #3Local quality

3Reliability

If active agents are applied in higher quantities to compensate for loss, then effectiveness is maintained, but waste increases and environmental impact worsens

Engineering Contradiction:
ImproveeffectivenessVSAvoidwaste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent implements recovery by using carrier particles that retain the active agent and prevent its loss through leaching or interception. The particles adhere to the substrate and release the active agent gradually, ensuring it remains available for the intended purpose. This reduces waste and environmental impact while maintaining effectiveness, as the active agent is not discarded prematurely.

Inventive Principle:
Principle #34Discarding and recovering

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

This approach enhances the active life of the agents in the environment, allows for lesser amounts to be applied, and achieves a uniform coating for improved distribution, maintaining effectiveness while reducing waste.

Implementation Method 1

carrier particles comprising at least an outer surface comprising an organic matter constituent, wherein the said active agent is combined within and/or adhered onto the surface of the carrier particles, the carrier particles a) being in dry, particulate form and carrying at least an electrostatic surface charge

Methodology Applied
Scientific EffectElectrostatic adhesion: Electrostatic Induction

Data Source

PatentEP3544447B1Coated product form
Publication Date: 2025.04.30 TERRAMERA EXCO HLDG LTD
  • EP3544447B1 patent drawingFigure 1
  • EP3544447B1 patent drawingFigure 2
  • EP3544447B1 patent drawingFigure 3~4

AI summary

A product form comprises an inanimate substrate comprising i) an active agent; and ii) carrier particles including at least an outer surface comprising an organic matter constituent, wherein the said active agent is combined within and/or on the surface of the carrier particles, the carrier particles being a) in dry, particulate form and carrying at least an electrostatic surface charge, and b) being at least substantially uniformly distributed over the outer surface of the substrate.