Coating System with Temperature Adjusters for VOC Compliance
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Solution Overview
Problem
Current coating compositions face challenges in maintaining suitable evaporation rates across varying temperatures, making it difficult to comply with VOC regulations while ensuring even application and drying, especially at low or high temperatures.
Innovation Solution
The development of a system comprising a paint and multiple temperature adjusters, each with a different solvent or solvent amount, to achieve a predetermined VOC content, allowing for suitable application across specific temperature ranges, ensuring the coating composition dries quickly and evenly without premature evaporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If VOC exempt solvents are used to comply with regulations, then VOC content is reduced, but evaporation rate becomes unsuitable for certain temperature ranges
Solution Approach 1:
The patent segments the coating system into multiple temperature-adjuster products, each formulated with specific solvent combinations optimized for particular temperature ranges. This allows users to select the appropriate product for their specific application conditions while maintaining overall VOC compliance through the base coating's exempt solvent formulation.
Solution Approach 2:
The patent changes the solvent composition parameters of the temperature adjusters to achieve different evaporation rates suitable for various temperature conditions. By carefully selecting and combining solvents with different volatility characteristics in each temperature-adjuster product, the system maintains VOC compliance while adapting evaporation behavior to match application temperature requirements.
2Speed
If a solvent with fast evaporation rate is used, then drying speed is improved, but the coating cannot flow evenly at high temperatures
Solution Approach 1:
The patent adjusts the solvent composition parameters in temperature-adjuster products to optimize the balance between evaporation rate and flow time for specific temperature ranges. Each product contains a tailored mixture of solvents that provides appropriate drying speed while maintaining sufficient flow time for even coating application under its designated temperature conditions.
Solution Approach 2:
The patent creates a dynamic system where users can adjust their coating formulation by adding different temperature-adjuster products based on actual application temperature conditions. This dynamic approach allows optimization of both drying speed and flow evenness by selecting the appropriate adjuster product for the current environmental conditions.
3Manufacturing precision
If a solvent with slow evaporation rate is used, then flow time is extended, but the coating dries too slowly at low temperatures
Solution Approach 1:
The patent modifies the solvent composition parameters in temperature-adjuster products to provide extended flow time at low temperatures through inclusion of slower-evaporating solvents, while still achieving acceptable drying times through the combined effect of the base coating and temperature-adjuster formulation.
4Adaptability or versatility
If multiple temperature-adjuster products are created, then adaptability to different temperatures is improved, but system complexity increases
Solution Approach 1:
The patent divides the overall temperature adaptation function into separate, specialized products for different temperature ranges. This segmentation allows each product to be optimized for its specific purpose while maintaining simplicity in formulation and usage instructions for each individual product, even though the overall system comprises multiple products.
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
This system enables the production of coating compositions that meet VOC regulations by adjusting solvent evaporation rates to match ambient temperatures, ensuring consistent application and drying performance across a range of conditions.
Implementation Method 1
Each of the plurality of temperature adjusters includes a different solvent or a different amount of a solvent compared to the other of the plurality of temperature adjusters such that each one of the plurality of coating compositions formed from one of the plurality of temperature adjusters is suitable for application within an ambient temperature range based on a rate of evaporation of the solvent within the ambient temperature range.
Data Source
AI summary
A method of making a system for producing coating compositions having a predetermined VOC content includes preparing a paint comprising a resin and a solvent and having the predetermined VOC content or less. Temperature adjusters are prepared containing a resin and having the predetermined VOC content or less. Each temperature adjuster includes a different solvent or a different amount of a solvent compared to the others such that each of the coating compositions formed from one of the temperature adjusters is suitable for application within an ambient temperature range based on a rate of evaporation of the solvent within the ambient temperature range. Each temperature adjuster has no less than 1 wt. % solids based on the total weight of the temperature adjuster. The paint and the temperature adjusters are provided together as the system.