Precision Coating Composition for Overspray-Free Application
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Solution Overview
Problem
Current coating technologies face challenges in applying coatings without overspray, requiring masking materials and multiple applications to achieve desired designs and patterns, while also needing to meet requirements for color, leveling, and low cure temperatures.
Innovation Solution
A coating composition comprising a film-forming resin dispersed in an aqueous medium, a crosslinker reactive with the resin, a rheology modifier, and a swelling solvent, with a solids content less than 25 weight %, designed for precision application without overspray, forming a multi-layer coating system with specific properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If masking materials and multiple coating applications are used to achieve desired designs and patterns, then coating precision is improved, but process complexity and time consumption increase
Solution Approach 1:
The patent removes masking materials from the coating process by using a precision application device that directly applies coating composition to specific portions of the substrate without overspray, eliminating the need for physical masks and multiple applications
Solution Approach 2:
The patent replaces the mechanical masking system with a precision application device that uses controlled material delivery (such as electrostatic spraying or robotic application) to achieve precise coating placement without physical barriers
2Object-generated harmful factors
If conventional coating compositions are used with precision application devices, then overspray is reduced, but desired coating properties such as color and cure profile cannot be achieved
Solution Approach 1:
The patent modifies the chemical parameters of the coating composition by incorporating specific resin types, crosslinkers, and solvents that enable the coating to achieve desired properties (color, cure profile, durability) when applied with precision application devices at controlled thicknesses
Solution Approach 2:
The patent uses composite coating formulations combining film-forming resins, crosslinkers, solvents, and functional additives to achieve multiple performance requirements simultaneously while being compatible with precision application methods
3Strength
If multiple coating applications are applied to achieve designs and patterns, then coating durability is improved, but application time and cost increase
Solution Approach 1:
The patent combines multiple coating functions (design creation, color application, and durability provision) into a single application step by using precision application devices that deposit coating composition with exact placement, eliminating the need for sequential masking and multiple coating passes
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
Enables precise application of coatings without overspray, achieving desired properties such as low cure temperatures, good leveling, and high durability, while reducing the need for masking and multiple applications, thus improving the coating process efficiency and cost-effectiveness.
Implementation Method 1
a swelling solvent that swells the film-forming resin
Implementation Method 2
a crosslinker reactive with the film-forming resin
Data Source
AI summary
A coating composition for precision application includes: a coating composition including a film-forming resin dispersed in an aqueous medium; a crosslinker reactive with the film-forming resin; a rheology modifier; a colorant; and a swelling solvent that swells the film-forming resin. The solids content of the coating composition is less than 25 weight %, based on the total weight of the coating composition. A system and method for precision application of a coating composition over at least a portion of a substrate are also disclosed. A substrate coated with a multi-layer coating system is also disclosed.