Gloss Removable Coating with UV Resistance
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Solution Overview
Problem
Current temporary coatings for automotive finishes lack UV resistance and often require separate high gloss top coats, and existing formulations are not easily removable without scraping after exposure to sunlight, especially when seeking a gloss finish.
Innovation Solution
A coating composition comprising a silica-deficient filler, such as sodium-potassium alumina silicate, along with solvents and resins, providing a gloss finish and UV resistance, allowing for removal without scraping even after 1000 hours of UV exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional temporary coatings are used to provide a matte finish, then the coating can be applied temporarily, but the coating lacks UV resistance and degrades over time with impaired removability
Solution Approach 1:
The patent changes the chemical composition parameters of the coating formulation by incorporating specific polymers (acrylic, polyester, polyurethane), UV absorbers, and silica-deficient fillers. These parameter changes enable the coating to maintain both UV resistance and removability over extended periods, resolving the contradiction between durability and temporary nature
Solution Approach 2:
The patent creates a composite coating material combining multiple polymer types, UV absorbers, silica-deficient fillers, and other additives. This composite formulation provides synergistic effects where the UV absorbers protect against degradation while the polymer matrix maintains adhesion and removability, achieving both UV resistance and long-term removability
2Shape
If a high gloss finish is desired, then a separate high gloss transparent top coat must be applied, but this increases the number of coating layers and application steps
Solution Approach 1:
The patent merges the functionality of multiple coating layers into a single formulation. The temporary coating itself is formulated to provide both the decorative color layer and the gloss finish in one application, eliminating the need for separate top coat layers and simplifying the overall coating system
Solution Approach 2:
The patent creates a universal temporary coating formulation that performs multiple functions simultaneously: provides temporary coverage, delivers UV resistance, achieves high gloss finish, and maintains ease of removal. This multi-functional coating eliminates the need for specialized separate coatings for each function
3Reliability
If the coating is made UV resistant, then the coating durability is improved, but the coating may become harder to remove without scraping
Solution Approach 1:
The patent carefully balances the concentration and type of UV absorbers and polymers in the formulation. By optimizing these parameters, the coating achieves sufficient UV resistance for durability while maintaining the chemical properties necessary for easy peeling and removal without scraping
Solution Approach 2:
The patent creates different local properties within the coating structure: the polymer matrix and UV absorbers provide UV resistance and durability in exposed areas, while the formulation overall maintains removability characteristics. The silica-deficient filler specifically contributes to both UV stability and peeling properties
Data Source
AI summary
A coating composition comprises at least one solvent, at least one resin, and at least one filler, wherein the filler is silica-deficient, sodium-potassium alumina silicate. The silica-deficient filler may be a sodium-potassium alumina silicate that contains less than 0.1 percent by weight crystalline silica and is 5 percent by weight or less of the coating composition or 1 percent by weight or less of the coating composition. In the later instance, the coating composition contains less than 0.001 percent crystalline silica. The resin may comprise styrene, styrenic copolymers, or mixtures including styrene. The composition provides a temporary gloss coating that may be removed physically, as by peeling for example. A method for coating a substrate with a coating that maybe removed by physical means is also provided. The method comprises applying the disclosed coating composition.