Anhydromevalonolactone Solvent for Low-Toxicity Polymer Dissolution
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Solution Overview
Problem
Current solvents like NMP and DCM pose significant health hazards and are not environmentally friendly, with applications in industries such as polymer dissolution and paint stripping.
Innovation Solution
Anhydromevalonolactone (aMVL) is introduced as a bio-derived solvent with high boiling point, low viscosity, and excellent solvation capabilities, suitable for various industrial applications including polymer production, recycling, and paint removal, replacing hazardous solvents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If hazardous solvents like NMP and DCM are used, then solvation capability and industrial application effectiveness are improved, but health hazards and environmental impact worsen
Solution Approach 1:
The patent changes the chemical parameters of the solvent system by replacing hazardous solvents (NMP, DCM) with bio-derived anhydromevalonolactone. This substitution maintains the necessary solvation parameters (Hansen solubility parameters) while fundamentally altering the toxicological parameters, thereby reducing health hazards without sacrificing solvation capability.
Solution Approach 2:
The patent employs a bio-derived, readily degradable solvent (anhydromevalonolactone) that can be produced from renewable biomass feedstock. This approach replaces persistent, hazardous solvents with a biodegradable alternative that has lower environmental impact and can be sustainably replenished, addressing both health and environmental concerns.
2Object-affected harmful factors
If high volatility solvents like DCM are used, then evaporation and drying speed are improved, but toxicity and health risks worsen
Solution Approach 1:
The patent adjusts the volatility parameter of the solvent system by using anhydromevalonolactone, which has lower volatility than DCM but still provides adequate evaporation characteristics. This parameter change reduces the formation of toxic vapors and associated health risks while maintaining reasonable drying times through optimized formulation and process conditions.
3Reliability
If flammable solvents are used, then solvation power and processing efficiency are improved, but safety risks from fire hazards worsen
Solution Approach 1:
The patent converts the potential harm of using effective organic solvents into a benefit by selecting anhydromevalonolactone, which provides the necessary solvation power for industrial processes while being non-flammable. This eliminates fire hazards without significantly compromising processing efficiency, as the solvent maintains adequate solubility parameters for polymer dissolution and coating applications.
4Object-affected harmful factors
If conventional solvents like NMP are used, then polymer dissolution capability is improved, but carcinogenicity and organ damage risks worsen
Solution Approach 1:
The patent changes the chemical composition parameter by substituting NMP with anhydromevalonolactone, which has comparable or superior solubility parameters for various polymers. This substitution eliminates the carcinogenicity and organ toxicity associated with NMP while maintaining the quantity and quality of polymer dissolution capability required for industrial applications.
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
aMVL offers a safer, more environmentally friendly alternative with similar solvation properties to NMP and DCM, reducing health risks and environmental impact while maintaining efficiency in solvent applications.
Implementation Method 1
aMVL operates similarly to DCM and NMP in terms of solvation capabilities
Implementation Method 2
exceptionally low volatility (vapor pressure: 30-40 Pa at 67° C.)
Data Source
AI summary
Described herein are solvents and co-solvents comprising anhydromevalonolactone (aMVL) and various industrial applications for such solvents. aMVL has a number of advantageous properties for use in solvent, including high boiling point, low melting point, low viscosity, non-flammability, water solubility, exceptionally low volatility, and excellent solvation capability. Exemplary industrial applications for solvents comprising aMVL include polymer manufacturing, polymer recycling, mold production, fiber production, membrane manufacturing, thermosetting paint manufacturing, coating manufacturing, coating removal, paint strippers, cleaning products, degreasing products, nitrile synthesis, alkylation, production of syngas, carbon-carbon cross-coupling reactions, metal organic framework synthesis, halogenation reactions, formation of pharmaceuticals, formation of fungicides and/or herbicides, seed treatment products, bioregulators, and electrolytes in batteries or capacitors.