UV Resistant Coatings for Automotives

Environmentally friendly UV absorber for coatings that maintains high UV resistance through enhanced antioxidant properties. The absorber combines a UV absorber with a synergistic combination of dispersing agents, stabilizers, and antioxidants. The UV absorber maintains its UV absorption characteristics over the 300-400nm range, ensuring effective UV protection while minimizing degradation. The combination provides superior UV stability compared to traditional UV absorbers, making it suitable for coatings requiring long-term UV protection.

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A synergistic composite light stabilizer for vehicle paint that combines hindered amine light stabilizers with additional components to achieve enhanced anti-aging properties while maintaining compatibility with the paint system. The stabilizer formulation comprises a light stabilizer, antioxidants, and other additives in specific weight ratios, with potassium carbonate as a key component. The reaction is carried out under nitrogen protection at elevated temperatures to produce a stabilized light stabilizer.

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UV-resistant coating composition for aerospace applications that provides enhanced UV protection while maintaining mechanical properties. The composition comprises a film-forming resin with reflective properties for UV light, along with a second material that absorbs UV radiation. The composition achieves UV transmission values of 0.4% or higher when cured, significantly improving the UV resistance of carbon fiber reinforced polymer substrates compared to conventional coatings.

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A weather-resistant coating composition comprising titanium oxide and a hindered amine light stabilizer (HALS) where the titanium oxide is replaced by a transition metal element other than tetravalent. The composition contains the HALS with molecular structures containing OH and 3 or more N atoms. The composition is suitable for applications requiring enhanced weather resistance, particularly in environments exposed to UV radiation.

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A method for producing durable automotive paint by creating a stable, milky-white latex that prevents paint film bubbles. The process involves a two-step emulsion formation process: first, a microgelatinized acrylic resin, HDI trimer, p-chloro-m-xylenol, and surfactant are combined and fully stirred to form a uniform emulsion. The emulsion is then subjected to a vacuum-assisted process where the latex is first heated and vacuumed twice, followed by a third vacuum-assisted process where the latex is cooled and vacuumed. This creates a stable, milky-white latex that exhibits excellent bubble resistance properties, enabling the production of durable automotive paint.

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Modified anti-aging additive for coatings that prevents color degradation and photo-aging while maintaining optical clarity. The additive comprises a combination of a hindered phenol antioxidant, a silane coupling agent, and a specific acrylic amino resin. The modified additive exhibits improved light stability and color retention compared to conventional anti-aging agents, enabling its use in high-transmittance coatings that maintain their optical properties over extended periods of exposure to sunlight.

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A novel light stabilizer for composite materials that enables bright red colors while maintaining high weather resistance. The stabilizer, represented by the structural formula, combines effective UV absorption with enhanced thermal stability, enabling the creation of bright red composites that meet performance requirements while maintaining durability. This innovative stabilizer system addresses the challenges of achieving high color difference values in bright red composites, particularly for applications requiring high weather resistance.

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Anti-UV car paint and preparation method that enhances automotive paint durability through a novel combination of silver mica pearl, talcum powder, and diatom-based filler. The method involves mixing hydroxy-acrylic resin with diatom-based latex, followed by addition of a dihydroxydiacetone (HDI) trimer. The latex is then heated to form a milky white or translucent film that incorporates the diatom-based filler. The diatom-based filler provides UV protection, while the HDI trimer stabilizes the film through its nitroxide radical mechanism. This combination enables enhanced UV resistance, improved chemical stability, and enhanced mechanical strength in automotive coatings.

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High-weather-resistant automotive overcoat varnish and its preparation method. The varnish comprises Component A and Component B. Component A comprises a high-solid, low-viscosity modified hydroxy acrylic resin (10-15%), high hydroxyl acrylic resin (35-45%), and high hydroxyl fluorocarbon resin (15-25%). Component B comprises a multifunctional silicon coupling agent. The varnish exhibits improved weather resistance, excellent gloss retention, and rapid drying properties.

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Paint and paint adjuvant compositions with enhanced light stability. The compositions contain a binder resin in an aqueous emulsion, a liquid light stabilizer, a dispersant, a pigment, and an inorganic filler, with the light stabilizer being a sterically hindered amine-based compound. The compositions provide superior light resistance while maintaining transparency and gloss properties.

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Paints and paint aids with enhanced light resistance, particularly for watercolor and acrylic paints. The paints contain a binder emulsion, a liquid light stabilizer, a dispersant, a pigment, and an inorganic filler. The liquid light stabilizer is a combination of a UV absorber and a steric hindrance amine light stabilizer. The paints achieve superior light resistance through a unique blend of additives that work in conjunction with the binder emulsion to prevent yellowing and maintain gloss. The paints can be used as both base coats and varnishes, offering excellent light stability and durability.

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Paint and paint aids for acrylic and watercolor paints that exhibit superior light resistance. The paints and aids contain a novel combination of light stabilizers, including hindered amine-based UV absorbers, that enhance the paints' durability against UV light exposure. The paints and aids also feature additives such as dispersants, pigments, and fillers to improve adhesion, flow, and gloss retention. The paints and aids are particularly effective in preventing yellowing and discoloration when exposed to light, making them suitable for applications requiring long-term color stability.

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UV-resistant car paint that maintains gloss and color resistance under sunlight while preventing degradation of additives. The paint combines a UV-stabilizing polymer with antibacterial agents, water-based dispersion, and nano-alumina for enhanced durability. The formulation is prepared through a multi-step process involving deionized water, propylene glycol, UV stabilizers, and polyacrylic acid dispersion. The paint maintains its gloss retention rate at 50% per hour under UV radiation exposure, while maintaining antibacterial properties and preventing environmental toxicity.

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Anti-color change modified acrylic automotive paint, preparation method, and equipment that enhances the durability and color stability of automotive coatings. The paint combines a modified acrylic resin with a specific additive that prevents color change under UV radiation and environmental exposure. This additive maintains the paint's original color and gloss while providing enhanced UV resistance. The formulation enables long-lasting color retention and gloss improvement in automotive coatings, particularly for base materials used in topcoat applications.

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A reactive UV absorber that enhances weather resistance without bleed-out or outflow. The absorber contains a specific reactive group that reacts with isocyanate monomers, enabling uniform incorporation into polymers. The reactive group enables controlled incorporation into polymer chains, ensuring consistent performance across the polymer matrix. This approach eliminates the traditional issues of UV bleed and outflow associated with conventional UV absorbers.

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Active UV absorber that provides long-lasting protection against UV degradation of organic materials. The absorber, comprising a benzene derivative with a glycidoxy group and a hydroxy group, exhibits superior chemical stability and resistance to migration in organic formulations. The absorber's unique molecular structure enables it to form strong covalent bonds with the polymer matrix, preventing leaching and maintaining its protective properties over extended periods.

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Coatings with selectively bound triazine UV absorbers that enhance UV stability in multicoat automotive paint systems. The coatings incorporate a triazine UV absorber covalently attached to the surface of a transparent resin, which is then applied to the substrate. This selective binding prevents UV absorption by the triazine while maintaining the transparency of the resin. The triazine absorbs UV radiation, thereby protecting the resin and the underlying substrate.

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A color paste for coatings that enhances light stability and durability through a novel combination of surfactants and ultraviolet absorbers. The paste comprises a pigment dispersion, surfactant, light stabilizer, pH adjuster, fungicide, and defoamer, all combined in a specific ratio. The surfactant and light stabilizer work together to absorb and neutralize ultraviolet radiation, while the pH adjuster maintains optimal pH conditions for the pigment dispersion. The combination provides superior light resistance, stability, and compatibility compared to traditional color pastes.

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A UV-resistant paint formulation that provides long-lasting protection against ultraviolet radiation degradation. The formulation incorporates a unique combination of UV-absorbing additives, including a specific type of silica and a UV-stabilizing pigment, to prevent paint film degradation caused by UV exposure. The additives work synergistically to absorb UV radiation and prevent its transmission through the paint film, thereby preventing degradation of the paint's physical and chemical properties over time.

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Benzotriazole compounds as UV absorbers and light stabilizers for coatings, particularly for paints and coatings. The compounds absorb UV light, reducing its intensity in the coating. They exhibit excellent compatibility with coating formulations of different polarities and provide superior light stability compared to conventional UV stabilizers. The compounds can be used in coatings as a UV absorber and light stabilizer, particularly for paints and coatings.

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