Prosulfocarb Emulsifiable Concentrate Without Harmful Solvents
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Solution Overview
Problem
Current prosulfocarb formulations contain solvents that are unsafe for the environment and increase dermal absorption, and they lack stability and pleasant odor.
Innovation Solution
An emulsifiable concentrate formulation of prosulfocarb with a concentration of 750 g/L to 980 g/L, using at least one emulsifier with a total concentration of less than 150 g/L, without any solvent, and optionally including additional components like safeners and stabilizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solvents are used in prosulfocarb formulations to solubilize the active ingredient, then the formulation can be produced and applied, but the formulation becomes unsafe for the environment and increases dermal absorption
Solution Approach 1:
The patent removes harmful solvents from the formulation entirely, extracting the problematic component while retaining the essential function of solubilizing prosulfocarb through alternative means (emulsifiers and water-based systems), thereby eliminating environmental and health hazards
Solution Approach 2:
The patent changes the formulation parameters by transitioning from solvent-based systems to emulsifier-based systems with specific HLB values, altering the chemical composition to achieve both solubilization and safety requirements simultaneously
2Productivity
If high concentration of prosulfocarb is formulated to improve productivity, then the formulation becomes less stable and unsuitable for long-term storage
Solution Approach 1:
The patent creates a composite formulation system combining prosulfocarb with specific emulsifiers (non-ionic and/or anionic) and optional co-solvents, where the synergistic interaction between components enables high concentration stability that individual components cannot achieve alone
Solution Approach 2:
The patent introduces emulsifiers as intermediary substances that mediate between prosulfocarb and water, enabling high concentration formulations to remain stable by preventing phase separation and maintaining homogeneous distribution of the active ingredient
3Ease of manufacture
If traditional solvents are used in formulations, then the formulation can be produced, but the smell is unpleasant both before and after dilution
Solution Approach 1:
The patent removes traditional aromatic solvents (naphtha, xylene) that cause unpleasant odors, extracting the harmful olfactory component while maintaining formulation functionality through emulsifier-based systems that produce acceptable odors
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 formulation exhibits reduced dermal absorption, improved stability, and a pleasant odor, while maintaining herbicidal efficacy against a broad spectrum of weeds.
Implementation Method 1
an emulsifiable concentrate formulation comprising: a) prosulfocarb in a concentration from 750 g/L to 980 g/L; and b) at least one emulsifier
Implementation Method 2
at least one emulsifier, wherein the total concentration of emulsifiers is less than or equal to 150 g/L
Data Source
AI summary
Improved stable herbicidal compositions comprising prosulfocarb are provided herein.