Two-Component Paint System With Pressure-Driven Hardener Transfer
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Solution Overview
Problem
Existing two-component paint systems, such as the SprayMax and US 2001/0014700, face challenges in producing optimal results due to non-optimized hardeners for various paints, leading to suboptimal corrosion resistance and wear resistance, as seen in DE 10 2013 019 085, which has low resistance to wear according to the MEK test.
Innovation Solution
A two-component paint system comprising a medium pressure canister with paint, solvent, and propellant, and a high pressure canister with hardener, inert gas, and solvent, where the adapter transfers the high pressure canister's content into the medium pressure canister, ensuring a pressure difference of at least 2 bars to efficiently mix and apply the paint components, optimizing the paint-hardener combination for improved adhesion, coverage, gloss, and haze characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a universal hardener is used in the aerosol canister, then the system is easier to operate and store, but the paint coating produces suboptimal corrosion resistance and wear resistance
Solution Approach 1:
The system is divided into two separate canisters: one containing the paint and another containing the hardener. This segmentation allows each component to be optimized independently - the hardener can be specifically formulated for each paint type to maximize corrosion and wear resistance, while the ease of operation is maintained through the simple adapter mechanism that combines them only at application time.
Solution Approach 2:
The system changes the state of the paint by introducing the hardener component only at the moment of application. The paint remains in its original optimized state in the first canister, and the hardener is added as a separate component, allowing precise control over the chemical reaction parameters to achieve optimal coating properties.
2Volume of moving object
If the hardener is prefilled in a separate cylinder inside the aerosol canister, then the system is more compact, but the hardener is not optimized for all specific paints
Solution Approach 1:
The system uses two separate canisters instead of a single integrated aerosol canister with internal cylinders. This segmentation allows the hardener to be optimized specifically for each paint type rather than using a universal formulation, while the compactness is maintained through the simple adapter design that connects the two canisters.
Solution Approach 2:
The system allows for parameter optimization by enabling specific hardener-formulation matching with specific paint types. The hardener in the second canister can be tailored to the exact requirements of the paint in the first canister, maximizing wear resistance and other coating properties while maintaining a compact two-canister configuration.
3Ease of operation
If the paint material and hardener are filled in different containers within a spray can, then the system is easier to store and transport, but the resulting paint mixture has low resistance to wear
Solution Approach 1:
The system uses two separate external canisters instead of different containers within a single spray can. This segmentation improves ease of storage and transport while allowing the hardener to be specifically optimized for the paint type, thereby achieving both easy storage and high wear resistance through proper component selection and combination.
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 system produces paint coatings with enhanced adhesion, coverage, gloss, and haze characteristics, and allows for specific optimization of different paint-hardener combinations, significantly improving the end results compared to prior art, as demonstrated by improved MEK test resistance and efficient hardener transfer.
Implementation Method 1
The high pressure canister has an internal pressure that is at least 2 bars higher than an internal pressure of the medium pressure canister
Implementation Method 2
The medium pressure canister comprises a paint, at least one solvent, and at least one propellant. The high pressure canister comprises a hardener, at least one solvent, at least one propellant, and an inert gas or inert gas mixture.
Data Source
AI summary
A two-component paint system (1) comprises a medium pressure canister (10) with a paint, at least one solvent and at least one propellant, and a high pressure canister (20) with a hardener, at least one solvent, at least one propellant and an inert gas or inert gas mixture. An adapter (30) is configured to transfer the content of the high pressure canister (20) into the content of the medium pressure canister (10). The internal pressure of the high pressure canister (20) is at least 2 bars higher than the internal pressure of the medium pressure canister (10).