WO2026043363 - SURFACTANT ADDITIVE FOR THE CONTROLLED-RELEASE OF AGROCHEMICALS
National phase entry is expected:
Publication Number
WO/2026/043363
Publication Date
26.02.2026
International Application No.
PCT/MY2025/050052
International Filing Date
20.08.2025
Title **
[English]
SURFACTANT ADDITIVE FOR THE CONTROLLED-RELEASE OF AGROCHEMICALS
[French]
ADDITIF TENSIOACTIF POUR LA LIBÉRATION CONTRÔLÉE DE PRODUITS AGROCHIMIQUES
Applicants **
THOPLA GOVENDER, Nisha
Inventors
THOPLA GOVENDER, Nisha
Priority Data
PI2024004837
20.08.2024
MY
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
MOIP
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Natural Person
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1954 | |
| EPO | Filing, Examination, Granting | 8715 | |
| Japan | Filing, Examination, Granting | 2024 | |
| South Korea | Filing, Examination, Granting | 1457 | |
| USA | Filing, Examination, Granting | 8940 |
Total:
23,090
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Abstract[English]
A controlled-release fertilizer composition comprises a nutrient core containing macro and micronutrients (1), enclosed within a coating layer formed of mesoporous nanosilica particles (2) bound by a mixture natural metabolites (3). The coating is uniformly applied over the nutrient core to form a continuous shell. When exposed to moisture and soil conditions, the nanosilica coating gradually dissociates, enabling a time-controlled release of nutrients into the soil. The nanosilica aggregates provide plant-available silicon and enhance retention in the soil matrix. The invention addresses the technical challenge of nutrient leaching common in conventional fertilizers while offering sustained nutrient delivery during the plant growth cycle.[French]
Une composition d'engrais à libération contrôlée comprend un cœur à base de nutriments contenant des macro et micronutriments (1), enfermé à l'intérieur d'une couche de revêtement formée de particules de nanosilice mésoporeuse (2) liées par un mélange de métabolites naturels (3). Le revêtement est appliqué uniformément sur le noyau à base de nutriments pour former une enveloppe continue. Suite à son exposition à l'humidité dans le sol, le revêtement en nanosilice se dissocie progressivement, ce qui permet une libération contrôlée dans le temps de nutriments dans le sol. Les agrégats de nanosilice fournissent du silicium disponible pour les plantes et améliorent la rétention dans la matrice de sol. L'invention répond au défi technique de la lixiviation des nutriments fréquente avec les engrais classiques tout en assurant une libération prolongée de nutriments pendant le cycle de croissance des plantes.