This page presents innovative patents for aircraft anti-icing coatings, using:

  • Superhydrophobic and Icephobic Surface Treatments – Anodized porous aluminum oxide layers with hydrophobic topcoats, sol-gel nanoporous coatings with self cleaning properties, and silicone elastomer xylene-oil formulations enabling interfacial slippage.
  • Carbon-Based Nanomaterial Integration – Graphene oxide and carbon nanotube dispersion in elastomer matrices, graphene foam composites with embedded electrical contacts for Joule heating, and functionalized graphene nanoplatelets.
  • Advanced Polymer and PTFE Formulations – Hyperbranched polyester acrylate with fluorine-modified components for dual-curing, nanoparticle-enhanced PTFE creating hydrophobic micro-structures, and fluorine-silicone modified acrylic resins.
  • Leading Edge Specialized Coatings – Zinc-rich primer with fluorine-silicone topcoat featuring non-uniform thickness profiles, polyurethane primer with gradual thickness taper for wing components, and organosilicon-modified compositions for low surface energy.

1. Dual-Curing Anti-Icing Coating Composition with Hyperbranched Polyester Acrylate and Modified Epoxy Acrylate for Aircraft Surfaces

Guangdong Power Grid Co., Ltd., 广东电网有限责任公司韶关供电局, SHAOGUAN POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD, 2023

Dual-curing anti-icing coating for aircraft surfaces that combines improved weather resistance with enhanced durability. The coating comprises a hyperbranched polyester acrylate, modified epoxy acrylate, fluorine-modified polyurethane acrylate, pentaerythritol tetraacrylate, and tetrahydrofurfuryl acrylate. The coating is prepared through a specific mixing ratio of these components, with optional fluorine-containing additives, and cured using a cationic sulfide initiator. The dual-curing process enables the coating to achieve superior weather resistance and durability while maintaining excellent anti-icing performance.

CN115505319B-patent-drawing

2. Elastomer Coatings with Dispersed Carbon-Based Nanomaterials for Icephobic Aircraft Surfaces

ZENTEK LTD, 2023

Carbon-based nanomaterial-enhanced elastomer coatings for aircraft surfaces to prevent ice formation. The coating incorporates low loadings of functionalized graphene oxide, carbon nanotubes, or graphene nanoplatelets into an elastomer matrix, enhancing both durability and icephobicity. The coating demonstrates superior ice resistance compared to traditional deicing systems, with a lower shear force required to shed ice. The nanomaterials' dispersed distribution within the elastomer matrix enables controlled icephobicity while maintaining mechanical integrity.

CA3228232A1-patent-drawing

3. Composite Anti-Icing Coating with Nanoparticle-Enhanced PTFE Layer for Epoxy Resin Surfaces

SHANGHAI JIAO TONG UNIVERSITY, 2022

A composite aircraft anti-icing coating that addresses the issue of water adhesion and ice formation on epoxy resin surfaces. The coating combines a hydrophobic PTFE layer with nanoparticles, where the nanoparticles form a three-dimensional branched structure on the PTFE surface. This creates a hydrophobic micro-structure that significantly delays ice formation and maintains the surface's anti-icing properties even in extreme low-temperature conditions. The coating's unique structure prevents mechanical interlocking between the surface and ice, while the PTFE layer maintains its hydrophobic properties. This approach enables effective anti-icing performance on carbon fiber reinforced epoxy composite materials without compromising their structural integrity.

CN115093593A-patent-drawing

4. Method for Forming Superhydrophobic Surface on Metal Substrates Using Anodized Porous Aluminum Oxide Layer and Hydrophobic Coating

AIRBUS SAS, 2021

A method for creating a superhydrophobic surface on metal substrates, such as airfoil leading edges, by anodizing the metal to form a porous aluminum oxide layer, widening the nanopores, and applying a hydrophobic coating. The resulting surface exhibits enhanced water and ice repellency, enabling the prevention of ice accretion on aircraft components without the need for traditional ice protection systems.

EP3916135A1-patent-drawing

5. Dual-Layer Coating with Thermal Insulating and Superhydrophobic Properties

RAFAEL ADVANCED DEFENSE SYSTEMS LTD, 2021

A coating that prevents ice formation on surfaces through a novel combination of thermal insulation and superhydrophobicity. The coating comprises a thermal insulating layer (e.g., foam) and a superhydrophobic surface layer (e.g., Ultra Ever Dry). When a supercooled water drop impacts the surface, the insulating layer prevents heat transfer, while the superhydrophobic surface layer prevents ice formation by minimizing contact area between the drop and surface. This dual-layer approach effectively prevents ice formation by both thermal insulation and superhydrophobicity.

6. Self-Lubricating Icephobic Coating Comprising Silicone Elastomer, Xylene, and Silicone Oil with Variable Infusion Levels and Composition Ratios

YEONG YONG HAN, 2019

A self-lubricating icephobic coating for aircraft surfaces that provides ultra-low ice adhesion and superior strength through a novel combination of hydrophobicity, low surface roughness, coating elasticity, and lubrication-enabled interfacial slippage. The coating is formed by mixing a silicone elastomer with xylene and a silicone oil, with optimal infusion levels and composition ratios. This material exhibits exceptional performance in harsh icing environments, including cryogenic temperatures, by maintaining a liquid layer on the interface with accreted ice, while maintaining mechanical stability. The coating can be applied to aircraft surfaces, including leading edges of wings, propellers, and engine components, through various coating methods, including drop casting, flow coating, spin coating, dip coating, and spraying.

7. Graphene Foam Composite Coating with Integrated Electrical Contacts for Aircraft Surface Deicing

THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES, 2019

A graphene-based deicing system for aircraft surfaces that combines electrical heating with a continuous graphene foam matrix. The system comprises a silicone-graphene foam composite infused with electrical contacts, which is cured to form a composite coating. The composite is applied to a metal substrate and connected to a power source. When exposed to electrical current, the composite deices surfaces by promoting uniform heat dissipation through phonon transport. The graphene foam matrix provides exceptional thermal conductivity while the silicone matrix facilitates water removal through hydrophobic properties. The composite can be applied as a coating over metal surfaces, enabling rapid ice removal at temperatures as low as -14°C.

US10183754B1-patent-drawing

8. Leading Edge Fairing Assembly with Silicone-Modified Acrylic Resin Coating and Organosilicon Monomer Composition

溧阳市哈大成果转化中心有限公司, LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO., LTD., 2016

A leading edge fairing assembly for aircraft that enhances ice protection through a novel anti-icing coating. The assembly features a silicone-modified acrylic resin coating applied to the leading edge fairing surface, which provides superior ice control properties compared to conventional anti-icing systems. The coating is formulated with a specific organosilicon monomer composition and is applied through a controlled spraying process. This coating system enables effective ice prevention on the leading edge fairing, particularly in icing conditions, while maintaining low surface energy and energy consumption.

CN103600549B-patent-drawing

9. Vertical Fin Leading Edge Coating with Polyurethane Primer and Fluorine-Silicone-Modified Acrylic Topcoat Featuring Gradual Thickness Taper

Liyang Ha Da Achievement Transformation Center Co., Ltd., LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO., LTD., 2016

Anti-icing coating for vertical fin leading edges of aircraft wings that effectively prevents ice formation while maintaining aerodynamic performance. The coating comprises a primer and topcoat comprising a polyurethane primer and an organic fluorine and silicone-modified acrylic paint, with a specific thickness profile that enhances ice nucleation suppression while maintaining structural integrity. The coating's unique thickness profile, with gradual taper from front to rear, optimizes ice formation suppression at the leading edge while minimizing aerodynamic impact.

10. Aircraft Horizontal Stabilizer Coating with Silicone-Modified Acrylic Resin and Nano-Silica for Ice Nucleation Suppression

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015

A leading edge coating for aircraft horizontal stabilizers that prevents ice formation through a novel combination of hydrophobic surface treatment and controlled ice nucleation inhibition. The coating, comprising a primer and topcoat, employs a silicone-modified acrylic resin with nano-silica and calcium carbonate to enhance ice nucleation suppression while maintaining aerodynamic performance. The coating's thickness profile, with gradual tapering from front to rear, optimizes ice prevention at the leading edge while minimizing performance degradation.

CN103600558B-patent-drawing

11. Aircraft Stabilizer Leading Edge Coating with Hydrophobic and Thermal Management Properties Featuring Zinc-Rich Primer and Fluorine-Silicone Modified Acrylic Topcoat

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015

A leading edge coating for aircraft stabilizer surfaces that prevents ice formation through a novel combination of hydrophobic surface modification and controlled thermal management. The coating comprises a primer and topcoat, with the primer featuring an inorganic-rich zinc layer and the topcoat comprising an organic fluorine and silicone-modified acrylic paint. The coating's unique thickness profile, with gradual tapering from front to rear, enhances its effectiveness in preventing ice formation while maintaining aerodynamic performance.

12. Leading Edge Assembly Head with Fluorine-Silicone Modified Acrylic Anti-Icing Coating

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015

A leading edge assembly head for aircraft that incorporates a specialized anti-icing coating to prevent ice formation on critical surfaces. The coating, comprising an organic fluorine and silicone-modified acrylic resin, provides enhanced ice protection through its unique hydrophobic properties. This coating is applied to the leading edge of the head assembly, where ice formation is most critical, and is designed to prevent ice nucleation and promote ice melting. The coating's performance is demonstrated through its ability to maintain ice-free surfaces even in subsonic flight conditions, where conventional anti-icing systems may fail.

13. Method for Forming Nanoporous Anodized Layer with Sol-Gel Coating on Metallic Substrate

EADS DEUTSCHLAND GMBH, 2015

A method for producing a superhydrophobic coating with self-cleaning properties on a metallic substrate, comprising anodizing the substrate in an electrolyte solution containing ammonium sulphate and ammonium fluoride to form a nanoporous layer, and then applying a sol-gel coating to the nanoporous layer. The resulting coated substrate exhibits high resistance to icing, contamination, and erosion, and can be used in aircraft to prevent ice formation and surface contamination.

14. Winglet Leading Edge Assembly with Integrated Fluorine-Silicone Modified Acrylic Resin Coating

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha-Da Achievement Transformation Center Co., Ltd., 2015

Anti-icing winglet leading edge assembly with enhanced ice control through a novel surface treatment. The assembly features an integrated anti-icing coating comprising an organic fluorine and silicone-modified acrylic resin. This coating provides superior ice protection at the winglet leading edge by forming a hydrophobic layer that prevents supercooled water droplets from forming on the surface. The coating is applied through a spray process, enabling efficient coverage of the critical leading edge area.

CN103587190B-patent-drawing

15. Wing Leading Edge Component with Anti-Icing Coating System Featuring Non-Uniform Thickness and Silicone-Modified Acrylic Topcoat

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015

A wing leading edge component for aircraft that enhances ice protection through advanced anti-icing technologies. The component features a specially developed anti-icing coating system comprising a primer and topcoat, where the primer is a zinc yellow acrylic polyurethane primer and the topcoat is a silicone-modified acrylic paint. The coating system provides enhanced ice prevention capabilities through its unique surface characteristics, particularly on the wing leading edge where aerodynamic performance is critical. The coating system's non-uniform thickness profile, with gradual variations across the leading edge, optimizes ice prevention while minimizing aerodynamic performance degradation.

CN103587189B-patent-drawing

16. Coating System with Organic Silicon Modified Acrylic Resin for Aircraft Wing Leading Edges

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015

A coating system for preventing ice formation on aircraft wing leading edges, particularly on the horizontal empennage front edge. The coating comprises an organic silicon modified acrylic resin that forms a protective ice coating layer on the wing surface. The resin is applied in a specific thickness pattern to achieve optimal anti-icing performance while maintaining aerodynamic efficiency. This coating system provides enhanced protection against ice formation at the critical leading edge of aircraft wings, particularly in subsonic flight conditions, while maintaining the wing's aerodynamic performance.

17. Method for Applying Polyurethane-Based Film with Silicone-Modified Acrylic Polyol and Silicone Fluid

PPG IND OHIO INC, 2015

A method for mitigating ice buildup on aircraft parts and other substrates, comprising applying a curable film-forming composition that reduces ice adhesion. The composition comprises a polyurethane matrix with a silicone-modified acrylic polyol resin and a specific type of silicone fluid, which improves compatibility and enhances hydrophobic properties. The coating is applied to the substrate surface, providing a durable and effective ice-release coating that meets aircraft coatings material specifications.

US9090797B2-patent-drawing

18. Aircraft Wing Leading Edge Coating System with Silicon-Modified Acrylic Ester and Epoxy Primer Layers

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang Ha Da Achievement Transformation Center Co., Ltd., 2015

A coating system for aircraft wing leading edges that prevents ice formation through a modified acrylic resin coating. The coating comprises a base layer of epoxy primer, followed by a silicon-modified acrylic ester coating. The silicon-modified coating is applied to the leading edge of the wing, specifically at the 1/5 chord point, and maintains uniform thickness throughout the wing surface. This design enables effective ice prevention while maintaining aerodynamic performance and structural integrity. The coating system is particularly effective in subsonic flight conditions where icing can significantly impact aircraft performance.

19. Vertical Tail Wing Front Edge Assembly with Integrated Fluorine-Silicon Modified Acrylic Resin Coating

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, Liyang HaDa Achievement Transformation Center Co., Ltd., 2015

A vertical tail wing front edge assembly for aircraft that prevents ice formation on the leading edge through a novel coating system. The assembly comprises a vertical tail wing front edge shell with an integrated ice coating layer that utilizes a specially formulated acrylic resin modified with fluorine and silicon. This coating system provides enhanced ice protection while maintaining aerodynamic performance characteristics, particularly beneficial for aircraft operating in subsonic flight conditions where icing can compromise lift and stability.

CN103587191B-patent-drawing

20. Vertical Tail Wing Front Edge Assembly with Modified Acrylic Resin Anti-Icing Coating

LIYANG HADA ACHIEVEMENTS TRANSFORMATION CENTER CO LTD, 溧阳市哈大成果转化中心有限公司, 2015

A vertical tail wing front edge assembly for aircraft that incorporates an anti-icing coating system. The assembly features a vertical tail wing front edge with a specially designed coating layer that prevents ice formation on the leading edge. The coating is achieved through a proprietary process that modifies the acrylic resin used in the coating process, creating a uniform thickness profile across the leading edge. This coating layer is applied to the vertical tail wing front edge using a specialized spray process, ensuring uniform coverage and optimal performance characteristics.

CN103587188B-patent-drawing

21. Application of Zinc-Huang Acrylic Polyurethane and Fluorine Silicon-Modified Acrylic Ester Coating on Aircraft Wing Leading Edge

22. Aircraft Wing Tip Coating System with Fluorine Silicon Modified Acrylic Resin and Specialized Spray Application

23. Polymer Matrix Coating with Dispersed Second Particles and Hydrophobic Stabilizing Third Particles for Ice Nucleation Control

24. Turbojet Engine Nacelle Air-Inlet Lip Assembly with Ice-Repellent Coating and Integrated Piezoelectric Actuators

25. Multilayer Composite Polymer Coatings with Signal-Activated Removable Outer Layer and Deactivatable Adhesives

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