US20190010335A1 - Hydrophobic coating for corrosion protection and method of fabrication - Google Patents

Hydrophobic coating for corrosion protection and method of fabrication Download PDF

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Publication number
US20190010335A1
US20190010335A1 US15/641,513 US201715641513A US2019010335A1 US 20190010335 A1 US20190010335 A1 US 20190010335A1 US 201715641513 A US201715641513 A US 201715641513A US 2019010335 A1 US2019010335 A1 US 2019010335A1
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United States
Prior art keywords
particles
deformable layer
layer
hydrophobic coating
size
Prior art date
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Abandoned
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US15/641,513
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English (en)
Inventor
Enrico Bovero
Gasan Selman Alabedi
Aziz Fihri
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Saudi Arabian Oil Co
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Saudi Arabian Oil Co
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Filing date
Publication date
Application filed by Saudi Arabian Oil Co filed Critical Saudi Arabian Oil Co
Priority to US15/641,513 priority Critical patent/US20190010335A1/en
Assigned to SAUDI ARABIAN OIL COMPANY reassignment SAUDI ARABIAN OIL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALABEDI, Gasan Selman, BOVERO, ENRICO, FIHRI, AZIZ
Priority to JP2019571634A priority patent/JP2020526378A/ja
Priority to KR1020207000917A priority patent/KR20200026889A/ko
Priority to PCT/US2018/040912 priority patent/WO2019010300A1/en
Priority to CN201880045039.1A priority patent/CN110832038A/zh
Priority to EP18745790.8A priority patent/EP3649201A1/en
Priority to SG11201913186QA priority patent/SG11201913186QA/en
Publication of US20190010335A1 publication Critical patent/US20190010335A1/en
Priority to US16/724,969 priority patent/US11634593B2/en
Priority to SA519410890A priority patent/SA519410890B1/ar
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • C09D5/084—Inorganic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1681—Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
    • C09D7/1216—
    • C09D7/1266—
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2451/00—Type of carrier, type of coating (Multilayers)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Definitions

  • the present invention relates to a coating system used for corrosion protection, and, in particular, relates to a method for fabricating a hydrophobic coating system that is resistant to corrosion.
  • the “Lotus effect” refers to the self-cleaning properties of the leaves of the Lotus flower.
  • the leaves of the Lotus flower contain a microscopic protrusion/wax double layer that is highly hydrophobic. As illustrated in FIG. 1 , the high surface tension of water on the Lotus leaves causes droplets to form a nearly spherical shape with a high contact angle.
  • a second approach involves adding a layer of particles to a structural surface in order to provide surface roughness and optional hierarchical structure.
  • a significant disadvantage of the second approach is the general lack of adhesion of the additives. While these particle additives can be generally applied to a wide variety of surfaces and materials with outstanding results, their adhesion to the underlying substrate is usually not strong enough to provide protection for longer than a relatively short duration, e.g., several months.
  • Embodiments of the present invention provide a method of fabricating a hydrophobic coating on a surface of a solid substrate that includes a layer-integrable material.
  • the method includes depositing a deformable layer of the layer-integrable material onto the surface of the solid substrate, forcibly embedding a plurality of particles within the deformable layer, and solidifying the deformable layer including the plurality of particles so as to be integral with the surface of the solid substrate. At least a portion of the plurality of particles is embedded at a threshold depth within the deformable layer prior to solidification.
  • the step of forcibly embedding a plurality of particulates within the deformable layer includes bombarding the deformable layer with a stream of particulates at selected momenta.
  • each of the plurality of particles has a size in a range of 1 nm to 50 ⁇ m. In some implementations, each of the plurality of particles has a size in the range of 5 nm to 50 nm. In some embodiments, the distribution of sizes of the plurality of particles can range between 1 and 50 percent from an average size value. In other embodiments, the plurality of particles has a multimodal size distribution.
  • the deformable layer can be deposited in a fluid, semi-viscous or viscous form and can comprise an epoxy resin.
  • the plurality of particles is composed of silica.
  • the plurality of particles upon solidification of the deformable layer, the plurality of particles have a hierarchical morphology such that a portion of the plurality of particles are exposed on a surface of the solidified deformable layer, and a portion of the plurality of particles are fully embedded within the solidified deformable layer.
  • Embodiments of the present invention also provide a hydrophobic coating that comprises a matrix of layer-integrable material and a plurality of particles embedded at varying depths within the matrix of layer-integrable material, wherein the plurality of particles have a size in a range of 1 nm to 50 ⁇ m.
  • the matrix of layer-integrable material comprises an epoxy resin.
  • the plurality of particles can be composed of silica.
  • the hydrophobic the plurality of particles has a size distribution ranging between 1 and 50 percent from an average size value of the plurality of particles.
  • the plurality of particles has a multimodal size distribution.
  • FIG. 1 is perspective view showing droplets of water on a Lotus leaf, illustrating the Lotus effect (ultra-hydrophobicity).
  • FIG. 2 is a schematic illustration of a method of fabricating a hydrophobic coating according to an embodiment of the present invention.
  • FIG. 3A is a schematic illustration depicting an exemplary deformable layer in which a unimodal distribution of particles have been embedded according to an embodiment of the present invention. A wide size distribution is depicted.
  • FIG. 3B is a schematic illustration depicting an exemplary deformable layer in which another unimodal distribution of particles have been embedded according to an embodiment of the present invention. A narrow size distribution is depicted.
  • FIG. 3C is a schematic illustration depicting an exemplary deformable layer in which a bimodal distribution of particles have been embedded according to an embodiment of the present invention.
  • FIG. 4 is a schematic illustration of test for measuring a contact angle between a water droplet and a coating according to the present invention.
  • FIG. 5 is a flow chart of an embodiment of a method of fabricating a hydrophobic coating according to the present invention.
  • a hydrophobic coating is disclosed herein which are suitable, among other purposes, for protecting structures from corrosion and degradation in harsh environments.
  • Certain materials, such as epoxy resins have the useful property that integral structures can be generated by sequentially depositing and solidifying fluid or semi-fluid layers onto one another; chemical bonding (e.g., cross-linking of polymer chains, polymerization, crystallization) occurs between the layers and builds up a solid, continuous matrix.
  • chemical bonding e.g., cross-linking of polymer chains, polymerization, crystallization
  • LIM layer-integrable material
  • a method of fabricating a hydrophobic coating on a surface of a solid substrate composed of or including a layer-integrable material comprises depositing a deformable layer of the same layer-integrable material onto the surface of the solid substrate, then forcibly embedding a plurality of particles within the deformable layer, and solidifying the deformable layer including the plurality of particles so as to be integral with the surface of the solid substrate, wherein at least a portion of the plurality of particles is embedded at a threshold depth within the deformable layer prior to solidification.
  • FIG. 2 is a schematic block diagram that illustrates an embodiment of the fabrication method according to the present invention.
  • a substrate 100 which may be a wall of a pipe, vessel or other structure, is shown.
  • the external surface of the substrate 105 which is exposed to the environment, is composed of a layer-integrable material, for example, an epoxy resin.
  • Suitable epoxy resins include bisphenol, aliphatic, novolac and glycidylamine epoxy resins.
  • Suitable curing agents that can be included in the epoxy resins include amines, thiols, anhydrides and phenols, and homo-polymerization improves hardening.
  • the deformable layer 110 is deposited on the surface 105 in a viscous or semi-viscous form.
  • a spray gun or similar particle-bombardment device 120 (“bombardment device”) having a nozzle 122 directed toward the deformable layer is shown projecting particles toward the deformable layer 110 .
  • the bombardment device can be pneumatically or electrostatically operated, or can be operated based on any other suitable energy source.
  • the particles 125 that are projected from bombardment device 125 are microscopic and/or nanoscopic in scale. That is the largest dimension (e.g., diameter) of the particles 125 can be in the range of about 1 nm to about 50 ⁇ m, and is preferably in the range of about 5 to about 50 nanometers, although other particle dimensions can be employed.
  • the purpose of the particles is to impart surface roughness to the deformable layer and impart hydrophobic properties in the manner of the Lotus effect.
  • the particle size is selected carefully both to ensure that the surface does not become overly fragile (when the particles are too small), and that the contact area between the surface and the droplets does not becomes too large, which can reduce the Lotus effect.
  • the particle size is selected to maximize the Lotus effect by avoiding undesirable gaps to form and to keep the surface area between the particles and droplets in an optimal range.
  • the distributions of sizes within a set of particles selected for bombardment can also be varied to affect the resulting morphology of the coating.
  • the distribution can be unimodal, with a central average, and variance of sizes ranging from 1 to 50% about the average size.
  • the distribution can be multimodal (e.g., 2 to 5 distinct size distributions) with each distinct range having its own modal average and a narrower variance, e.g., 1 to 10 percent from each modal average. Other numbers of modes and distributional variances can be used.
  • the selection of size distributions provides any way to adjust the hydrophobicity of the surface because the roughness of the surface typically decreases with the number of distinct size distributions, which can reduce hydrophobicity.
  • FIG. 3A schematically illustrates deformable layer 205 in which a unimodal distribution of particles 210 have been embedded according to an embodiment of the present invention.
  • the distribution of particles 210 varies approximately 50% about an average (i.e., if the average is normalized at 1.0, the size of the particles varies from 0.5 to 1.5.
  • FIG. 3B illustrates another embodiment, depicting a deformable layer 215 in which a different unimodal distribution of particles 220 has been embedded.
  • FIG. 3C illustrates a further embodiment, depicting a deformable layer 225 in which a bimodal distribution of particles, 226 , 228 has been embedded.
  • the first distribution of particles 226 has an average diameter less than half of the average diameter of the second distribution of particles 228 .
  • Each distribution 226 , 228 in the embodiment shown in FIG. 3C various about 10 percent from the average.
  • FIG. 3C illustrates a hierarchical surface structure that can be created using a multimodal particle size distribution. It is noted that while the particles are depicted as circles in FIGS. 3A-3C , this is for purposes of convenient illustration only, and does necessarily represent the shape of the particles, which can be irregular.
  • the adhesion of the particles within the deformable layer is selected such that a portion of the particles emitted by the bombardment device penetrate to a threshold depth within the deformable layer.
  • the threshold depth can range from one-quarter of the average diameter of the particles to approximately 100 times the average particle diameter. This depth range can provide a complex morphology with particles distributed throughout the depth of the deformable layer. This is achieved by adjusting both the viscosity of the deformable layer and the momentum of the particles emitted by the bombardment device.
  • the material of the deformable layer is adjusted to provide sufficient fluidity for at least a portion of the particles to reach the threshold depth.
  • the viscosity is also adjusted to be sufficient high to avoid having completely the particles penetrate completely through the deformable layer to the surface of the substrate. Thus, the factors are adjusted so that a significant portion of the particles are exposed on the surface of the deformable layer so as to provide surface roughness.
  • a suitable range for the viscosities of the deformable layer is between about 1000 and about 500,000 cP, although other viscosity levels can be used. Such viscosities enable particles of micro to nanometer-size to penetrate into the matrix of the deformable layer without penetrating through to the substrate.
  • temperature conditions are adjusted, according to the type of material used, to ensure that the viscosity of the deformable layer is maintained within a suitable range.
  • the momentum of impact and the size of the particles are taken into account.
  • particles with smaller diameters tend to penetrate deeper than particles with larger diameters.
  • heavier particles tend to penetrate further than lighter ones.
  • the viscosity of the deformable layer is adjusted in tandem with particle bombardment parameters to enable at least a portion of the particles to penetrate to the desired depth.
  • the viscosity is estimated to be directly proportional to the momentum of the particles and inversely proportional to the area of impact. This relationship can be summarized by the following equation:
  • V k ⁇ p a ( 1 )
  • V is the viscosity
  • p is the momentum of the particles
  • a is the area of impact, which is directly related to the size of the particles
  • k is a constant.
  • epoxy resin is used as the matrix for the deformable layer and silica is used as the material for the particles (referred to as the Epoxy/Silica system).
  • Epoxy resins can be prepared by mixing pre-polymer and a curing agent. The resins can then be applied on the structure in fluid form using techniques known in the art. Generally, directly after preparation, the viscosities of such epoxy resins are in the range of about 1000 to about 3000 cP, and within a half hour of application to a structure, the viscosities can reach a range of about 10,000 to about 50,000 cP. This range is suitable for the bombardment with silica nanoparticles according to the present invention.
  • a bimodal distribution of particles sizes is used, with a first distribution having sizes ranging from about 200 to about 800 nm, and a second distribution with smaller particles ranging from about 10 to about 100 nm.
  • the speed of bombardment in these conditions is on the order of the speed of simple casting and can range from 0.1 m/s to 10 m/s according to the desired ultimate depth of the particles within the deformable layer.
  • the deformable layer can be cured and solidified. Due to the fact that particles are bombarded to penetrate at various depths, upon solidification, a hierarchical morphology is thus frozen in place.
  • the hierarchical morphology gives the coatings fabricated according to the present invention a significant advantage in that the coating can retain hydrophobicity and surface roughness even after a certain amount of corrosion and surface wear. This is because as the exposed layers of the particles on the surface are worn away, the particles embedded beneath are in turn exposed to the surface, and provide a commensurate level of surface roughness and hydrophobicity to the coating.
  • Coatings fabricated according to the present invention can achieve a contact angle (the angle (a) at which a water droplet contacts a surface) averaging as high as 150 degrees, in the ultra-hydrophobic range.
  • FIG. 4 is a schematic illustration of a test for measuring a contact angle between a water droplet and a coating according to the present invention. As depicted, the contact angle (a) between water droplet 410 and coating 415 is approximately 150 degrees.
  • One of the main advantages of the fabrication methods of the present invention is their general applicability. Since the methods do not require modification of an already existing coating (i.e., substrate), they can be readily used in existing installations. This makes the methods particularly economically attractive to employ.
  • One notable application is protection of metallic structures exposed to harsh marine environments from corrosion. Such metal structures can be coated initially using commercially-available epoxy paints including Hempadur 45070, Interseal 41/Interzone 954, Jotamastic 80/Penguard FC, Sigmacover 410 prime/Sigmacover 410, Carboguard 690, and Euronavy ES301. To this paint can be added a coating according to the present invention as described.
  • the coating provides additional surface roughness sufficient to achieve high hydrophobicity while only minimally modifying the structure and the integrity of the underlying paint and substrate. Since the particles are added on the surface of the coating when the polymeric coating is still not completely cured, the particles are incorporated in proximity of the surface of the coating.
  • hydrophobic ligands can be added to the silica particles. These ligands add an additional chemical hydrophobic barrier.
  • the choices of the ligands can be diverse.
  • fluorinated silane can be added to silica nanoparticles. The fluorinated chemical groups promote hydrophobicity and the silane groups can be bonded to the silica through silanization, as known in the art.
  • FIG. 5 is a flow chart of an embodiment of a method of fabricating a hydrophobic coating on a surface of a solid substrate including a layer-integrable material according to the present invention.
  • the method begins with selection of a substrate (or initial coating) including a layer-integrable material that is to be protected with an anti-corrosion coating.
  • a deformable viscous or semi-viscous layer of layer-integrable material is deposited onto the substrate.
  • particles are forcibly embedded (e.g., by bombardment) into the deformable layer at selected momenta and are embedded in the deformable layer at varying depths.
  • the deformable layer is solidified and is integrated seamlessly and continuously with the substrate.
  • layer-integrable materials can include polymer resins such as polyurethanes, polysiloxanes, polyacrylates, polyethylene, polypropylene, polystyrene, etc.
  • alternative particle materials that can employed include zinc oxide, manganese oxide, calcium carbonate, carbon Nanotubes, graphene oxide, magnesium oxide, among other oxides or sulfides.

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US15/641,513 2017-07-05 2017-07-05 Hydrophobic coating for corrosion protection and method of fabrication Abandoned US20190010335A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US15/641,513 US20190010335A1 (en) 2017-07-05 2017-07-05 Hydrophobic coating for corrosion protection and method of fabrication
SG11201913186QA SG11201913186QA (en) 2017-07-05 2018-07-05 Hydrophobic coating for corrosion protection and method of fabrication
CN201880045039.1A CN110832038A (zh) 2017-07-05 2018-07-05 用于腐蚀保护的疏水涂层和制造方法
KR1020207000917A KR20200026889A (ko) 2017-07-05 2018-07-05 부식 방지를 위한 소수성 코팅 및 제조 방법
PCT/US2018/040912 WO2019010300A1 (en) 2017-07-05 2018-07-05 HYDROPHOBIC COATING FOR CORROSION PROTECTION AND METHOD OF MANUFACTURE
JP2019571634A JP2020526378A (ja) 2017-07-05 2018-07-05 腐食防止のための疎水性コーティングおよび製作方法
EP18745790.8A EP3649201A1 (en) 2017-07-05 2018-07-05 Hydrophobic coating for corrosion protection and method of fabrication
US16/724,969 US11634593B2 (en) 2017-07-05 2019-12-23 Method for fabricating a hydrophobic coating for corrosion protection
SA519410890A SA519410890B1 (ar) 2017-07-05 2019-12-24 طلاء غير آلف للماء للحماية من التآكل وطريقة لتصنيعه

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EP (1) EP3649201A1 (https=)
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KR (1) KR20200026889A (https=)
CN (1) CN110832038A (https=)
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US20200009826A1 (en) * 2018-07-03 2020-01-09 Hamilton Sundstrand Corporation Antimicrobial surfaces for flow path components
US20210154700A1 (en) * 2019-11-22 2021-05-27 University Of Virginia Patent Foundation Composition and method for a microtexture hydrophobic or superhydrophobic coating
WO2021107914A1 (en) * 2019-11-25 2021-06-03 Saudi Arabian Oil Company Method of providing a hydrophobic coating using non-functionalized nanoparticles
EP4150022A4 (en) * 2020-05-13 2024-04-24 Graphite Innovation and Technologies Inc. COATING COMPOSITION COATINGS AND ASSOCIATED PROCESSES

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CN116558326A (zh) * 2022-01-27 2023-08-08 浙江三花智能控制股份有限公司 换热器和用于换热器的复合材料

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