Water-Dilutable Nitenpyram Insecticide Concentrate
Official patent title
Emulsifiable concentrate (EC) formulation of nitenpyram
Arabic title: مستحضر مركز قابل للاستحلاب (EC) من النيتينبيرام
Invention
Invention
Problem
Existing nitenpyram products can degrade through sunlight exposure or hydrolysis, while some solvent-based approaches may be costly, creating a need for a concentrated formulation with defined storage stability.
Why it matters
Storage-stable pesticide concentrates can reduce formulation loss and simplify dilution and application, provided efficacy, crop safety, environmental effects, worker safety, and regulatory compliance are demonstrated.
Approach
The EC formulation combines DMF, methanol, and xylene at about 5:2:9 by volume with anionic and non-ionic surfactants and 15–40% w/v neonicotinoid pesticide, including a 20% w/v nitenpyram embodiment.
Who may benefit
Potential beneficiaries include agrochemical formulators, crop-protection companies, pesticide stability laboratories, agricultural distributors, and technology-transfer partners in formulation chemistry.
Potential value
The patent defines a high-loading solvent and surfactant system and claims at least two years of room-temperature shelf life under CIPAC guidelines, giving partners a concrete formulation starting point.
Background
Background
Nitenpyram is a neonicotinoid insecticide sold in several formulation types. The patent describes stability limitations for water-dispersible granules exposed to sunlight and soluble-liquid products subject to hydrolysis. Dimethylformamide can limit hydrolysis, but formulations relying heavily on it may be economically unattractive. The disclosed EC approach combines DMF with methanol and xylene plus anionic and non-ionic surfactants. It aims to dissolve a higher pesticide loading while maintaining room-temperature shelf stability, then form an oil-droplet emulsion when diluted with water for application.
Technology overview
Technology overview
The concentrate contains 15–40% w/v neonicotinoid in a DMF:methanol:xylene solvent mixture of about 5:2:9. Claimed surfactant ranges are 1.5–7 wt.% anionic and 3–10 wt.% non-ionic. A specific nitenpyram formulation uses 20% w/v active ingredient, 2.5–3.5 wt.% calcium alkylbenzene sulfonate, and 5–6.5 wt.% castor-oil ethoxylate. The patent claims at least a two-year room-temperature shelf life under CIPAC guidelines and describes dilution with water before potential plant, seed, soil, or habitat application.
Potential applications
Potential applications
- Potential use as a water-dilutable concentrate for agricultural insect-control programs.
- Potential application to plants, seeds, soil, or plant habitats after required approvals.
- Potential formulation platform for selected neonicotinoids listed in the patent.
- Potential use in comparative shelf-stability and delivery studies for crop-protection products.
Evidence-supported advantages
Evidence-supported advantages
- Claims at least two years of room-temperature shelf life under CIPAC guidelines.
- Defines a DMF:methanol:xylene volume ratio of about 5:2:9.
- Supports 15–40% w/v neonicotinoid loading, including a specified 20% nitenpyram formulation.
- Uses paired anionic and non-ionic surfactants to form a water-dilutable emulsion.
Development stage
Development stage
Patent publication with a described formulation and claimed CIPAC-guideline shelf stability; field efficacy, regulatory approval, and commercialization were not established.
Commercial opportunity
Commercial opportunity
The formulation may be evaluated for licensing to crop-protection manufacturers or for formulation-development partnerships. Commercialization requires independent shelf-life confirmation, field efficacy, crop compatibility, worker and solvent safety, residue studies, environmental fate and ecotoxicology, packaging compatibility, manufacturing controls, and registration in every intended jurisdiction.
Patent classifications
Patent classifications
WIPO IPC
- A01N43/40Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N25/04Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
CPC
- A01N25/04Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N25/30Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N43/40Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N43/88Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N47/40Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01N47/44Preservation of human, animal or plant bodies or parts thereof; biocides, pesticides and herbicides; pest repellants or attractants; plant growth regulators
- A01P7/04Biocidal, pest-repellent, pest-attractant or plant-growth-regulatory activity of chemical compounds or preparations
Inventors
Inventors
- First inventorNadeem Raza
- InventorSabir Razzaq
- InventorSuryyia Manzoor
- InventorWaseem Raza
- InventorMuhammad Hayat
- InventorFaisal K. Algethami
Keywords
Keywords
- nitenpyram
- emulsifiable concentrate
- neonicotinoid
- DMF
- methanol
- xylene
- surfactant
- CIPAC
Patent document and drawings
Patent document and drawings
The patent publication is mapped to this record. Patent drawings remain within that publication; no separately cleared public media package has been supplied.