Flash Point Elevation Using Terpene Alcohol Blends
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Solution Overview
Problem
Volatile organic compounds (VOCs) have limited uses due to their high flammability and volatility, leading to regulatory restrictions and handling challenges, and existing methods to increase their flash points, such as using high concentrations of alpha terpineol, result in costly formulations and compatibility issues with resins during film formation.
Innovation Solution
Adding a low concentration (0.05 to 5.0 wt. %) of a combination of two or more terpene alcohols to VOCs raises their flash points, allowing for expanded uses and longer shelf life without significant settling or increased costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high concentrations of alpha terpineol (10-18%) are added to VOCs to increase flash point, then flash point increases, but formulation cost increases and compatibility issues with resins occur during film formation
Solution Approach 1:
The patent combines multiple terpene alcohols (alpha-terpineol, beta-terpineol, and gamma-terpineol) in a blended formulation rather than using a single terpene alcohol at high concentration. This merging approach allows the flash point to be raised effectively while avoiding the compatibility issues and excessive costs associated with high loadings of a single terpene alcohol. The synergistic combination of multiple components achieves the desired safety improvement without the adverse effects of excessive single-component addition.
Solution Approach 2:
The patent changes the concentration parameters of terpene alcohols from high loadings (10-18%) to low loadings (0.05-5.0 wt%). This parameter change fundamentally alters the formulation behavior, allowing the flash point to be raised while maintaining compatibility with resins and avoiding the phase separation and adhesion problems that occur at high concentrations. The low-concentration approach preserves the solvent's original properties while achieving the safety improvement.
2Temperature
If high concentrations of alpha terpineol (10-18%) are added to VOCs to increase flash point, then flash point increases, but formulation cost increases
Solution Approach 1:
The patent merges multiple terpene alcohol components in a blended formulation, which is more cost-effective than using high concentrations of a single terpene alcohol. By combining alpha-terpineol, beta-terpineol, and gamma-terpineol at low concentrations (0.05-5.0 wt%), the formulation achieves the desired flash point elevation at a lower overall cost. The synergistic effect of the blend allows for reduced material usage compared to relying on a single expensive component at high loading.
Solution Approach 2:
The patent changes the concentration parameter from high (10-18%) to low (0.05-5.0 wt%), which directly reduces the quantity of expensive terpene alcohol material required. This parameter change transforms the formulation from a high-cost approach to a cost-effective approach, achieving the same flash point improvement with significantly reduced material costs. The low-concentration formulation maintains effectiveness while substantially lowering the formulation cost.
3Temperature
If excessive terpineol loading (10-18%) is used to raise flash point, then flash point increases, but rapid settling and poor shelf life occur
Solution Approach 1:
The patent merges multiple terpene alcohol components in a balanced blend rather than relying on excessive loading of a single component. This merging approach creates a more stable formulation where the synergistic interaction between alpha-terpineol, beta-terpineol, and gamma-terpineol prevents rapid settling and maintains shelf life. The distributed composition across multiple components reduces the likelihood of phase separation and settling that occurs with high concentrations of a single terpene alcohol.
Solution Approach 2:
The patent changes the concentration parameter from excessive (10-18%) to low (0.05-5.0 wt%), which fundamentally improves formulation stability. At these low concentrations, the terpene alcohols remain fully dissolved in the VOC solvent system without causing rapid settling or phase separation. This parameter change transforms the formulation from an unstable, short-shelf-life product to a stable, long-shelf-life product while still achieving the desired flash point elevation.
4Temperature
If heavy loading of terpineol is used to increase flash point, then flash point increases, but adhesion problems occur during film formation
Solution Approach 1:
The patent combines multiple terpene alcohols in a low-concentration blend that does not interfere with the adhesion properties of the coating formulation. By merging alpha-terpineol, beta-terpineol, and gamma-terpineol at low concentrations (0.05-5.0 wt%), the formulation maintains good adhesion to substrates during film formation. The synergistic blend approach ensures that the terpene alcohols act as compatible additives rather than adhesion promoters or inhibitors, providing flash point elevation without compromising bond strength.
Solution Approach 2:
The patent changes the concentration parameter from heavy loading (10-18%) to low loading (0.05-5.0 wt%), which preserves the adhesion properties of the coating formulation. At these low concentrations, the terpene alcohols do not create excessive viscosity changes or phase separation that would compromise adhesion. Instead, they function as compatible additives that elevate flash point while allowing the coating to maintain its original adhesion characteristics during film formation and drying.
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 low-loading terpene alcohol blends effectively increase the flash points of VOCs, enabling broader industrial applications, improved performance, and safer handling, while maintaining cost-effectiveness and compatibility with various substrates.
Implementation Method 1
adding a low concentration (0.05 to 5.0 wt. %) of a combination of two or more terpene alcohols to VOCs raises their flash points
Data Source
AI summary
The flash points of volatile organic compounds are raised by using from about 0.05 to 5.0 wt. % of a combination of two or more terpene alcohols to allow the blended compound to have a higher flash point. In contrast to heavier loadings, the lower loading of two or more terpene alcohols to a VOC has been found to increase the range of uses for such compounds and as well as increasing the shelf life of the VOC.