Biopolymer Microcapsules for Cyclohexanedione Stability and Dispersibility

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Solution Overview

Problem

Existing herbicidal and insecticidal products face challenges in stability and dispersibility, necessitating improvements for enhanced efficiency and effectiveness.

Innovation Solution

Encapsulation of cyclohexanediones using biopolymers such as polysaccharides and cellulose through complex coacervation, combined with appropriate surfactants, to form micro-capsules that enhance chemical stability and dispersibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical products are used for herbicidal and insecticidal applications, then their effectiveness is improved, but their stability and dispersibility deteriorate due to complexity

Engineering Contradiction:
ImproveeffectivenessVSAvoidstability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies encapsulation technology where the active chemical ingredient (cyclohexanedione) is nested inside microcapsules formed by biopolymer matrices. This nested structure protects the core chemical from degradation while maintaining its bioactivity, thereby resolving the contradiction between effectiveness and stability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent uses biopolymer-based microcapsules with flexible shell structures that can adapt to different environmental conditions. These thin film encapsulations provide protection while allowing controlled release, improving both stability and effectiveness simultaneously.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If chemical products are used for herbicidal and insecticidal applications, then their effectiveness is improved, but their dispersibility deteriorates due to complexity

Engineering Contradiction:
ImproveeffectivenessVSAvoiddispersibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The microcapsule structure with flexible biopolymer shells breaks down more easily in environmental conditions, improving dispersibility. The thin film structure allows better distribution in spray solutions while maintaining the effectiveness of the enclosed active ingredient.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent creates composite material systems combining biopolymers (for dispersibility) with cyclohexanedione (for effectiveness). This composite approach allows the material to exhibit both good dispersibility in aqueous and oil phases and maintained herbicidal activity.

Inventive Principle:
Principle #40Composite materials

3Stability of the object's composition

If encapsulation is used to improve stability, then chemical stability is improved, but the complexity of the formulation increases

Engineering Contradiction:
Improvechemical stabilityVSAvoidformulation complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent optimizes parameters such as biopolymer concentration, crosslinking degree, and encapsulation conditions to achieve stable microcapsules with controlled complexity. By adjusting these parameters, the formulation maintains chemical stability without excessive complexity in the final product.

Inventive Principle:
Principle #35Parameter changes

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 encapsulation process results in improved chemical stability, dispersibility, and controlled release of active ingredients, with formulations demonstrating stability up to 2 weeks at 54°C and high dispersibility in both aqueous and oil phases, while also acting as an adjuvant for bio-efficacy enhancement.

Implementation Method 1

Encapsulation of cyclohexanediones using biopolymers such as polysaccharides and cellulose through complex coacervation

Methodology Applied
Scientific EffectComplex coacervation: Coacervate

Implementation Method 2

combined with appropriate surfactants, to form micro-capsules that enhance chemical stability and dispersibility

Methodology Applied
Scientific EffectSurfactant action: Surfactant

Data Source

PatentUS12414563B2Encapsulation of cyclohexanediones process and product
Publication Date: 2025.09.16 ARYSTA LIFESCIENCE INC
  • US12414563B2 patent drawing

AI summary

Encapsulation of cyclohexanediones process and product. A composition particularly adapted for herbicidal use is described, including biopolymer micro-capsules containing one or more cyclohexanediones encapsulated therein, resulting in enhanced chemical stability and dispersibility of the encapsulated cyclohexanediones for such use. A complex coacervation method of forming such microcapsules is also described.