EP3877469A1 - Composition anticorrosion à base de résines alkydes - Google Patents

Composition anticorrosion à base de résines alkydes

Info

Publication number
EP3877469A1
EP3877469A1 EP19798098.0A EP19798098A EP3877469A1 EP 3877469 A1 EP3877469 A1 EP 3877469A1 EP 19798098 A EP19798098 A EP 19798098A EP 3877469 A1 EP3877469 A1 EP 3877469A1
Authority
EP
European Patent Office
Prior art keywords
weight
composition
corrosion protection
composition according
test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19798098.0A
Other languages
German (de)
English (en)
Inventor
Georg Schulze
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sherwin Williams Coatings Deutschland GmbH
Original Assignee
Sika Technology AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sika Technology AG filed Critical Sika Technology AG
Publication of EP3877469A1 publication Critical patent/EP3877469A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a corrosion protection composition based on alkyd resins, which can be used as a coating, in particular as a protective coating for metal surfaces in building construction or in industrial plants.
  • Liquid anti-corrosion compositions based on alkyd resins which are used as coatings or paints, have long been state of the art.
  • Phenol-formaldehyde resins are described, for example, in DE 2038768 for use in aqueous paints which are used by the electrocoating process. It describes a water-dilutable polycondensate made from fatty acid esters, phenol-formaldehyde resin,
  • Phenol-formaldehyde resins are further described in EP 0 270 795 for the use of an aqueous binder composition as a primer for the corrosion protection of metallic and non-metallic objects.
  • a water-thinnable, oxidatively crosslinking carboxylated polybutadiene composition comprising non-water-miscible phenolic resin is described.
  • Alkyd resins which have improved performance in demanding Corrosion tests on metal substrates, especially in the "Resistance to salt spray” according to DIN EN ISO 9227 NSS or in the “Resistance to moisture” according to DIN EN ISO 6270-1, especially in the cross-cut test.
  • the invention relates to a corrosion protection composition
  • a corrosion protection composition comprising:
  • At least one alkyd resin AH preferably a urethane-modified alkyd resin
  • At least one corrosion protection pigment KP At least one corrosion protection pigment KP, the at least one corrosion protection pigment KP
  • At least one platelet-shaped corrosion protection pigment KPP in particular selected from the list consisting of iron mica, mica, zinc, aluminum and layered silicates, in particular talc and kaolinite, and / or
  • o is at least one active anti-corrosion pigment KPA
  • the corrosion protection composition contains at least: o microspheres, and / or
  • Formaldehyde resins preferably xylene-formaldehyde resins reacted with substituted phenols.
  • molecular weight means the molar mass (in grams per mole) of a molecule.
  • average molecular weight is the number average M n of an oligomeric or polymeric mixture of molecules, which is usually determined as standard using gel permeation chromatography (GPC) against polystyrene.
  • a substance or a composition is said to be “stable in storage” or “storable” if it can be stored at room temperature in a suitable container for a longer period of time, typically for at least 3 months to 6 months and more, without it being in its Application or use properties changed by storage to an extent relevant to their use.
  • room temperature A temperature of 23 ° C is referred to as "room temperature”.
  • the composition comprises at least one alkyd resin AH.
  • alkyd resin AH is preferably an alkyd resin AH as described under the term “alkyd resins” in Römpp Chemie Lexikon, online version, Georg Thieme Verlag, accessed on November 4, 2018.
  • They are preferably air and oxidative drying alkyd resins, in particular linseed oil, soybean oil, safflower oil or ricin alkyd resins.
  • the alkyd resins AH are preferably made from polyhydric alcohols,
  • Suitable unsaturated fatty acids are, for example, lauroleic acid
  • oleic acid octadecenoic acid
  • gadoleic acid eicosenoic acid
  • erucic acid docosenoic acid
  • ricinoleic acid (12-hydroxyoctadecenoic acid)
  • Linoleic acid octadecenoic acid
  • linolenic acid octadecatrienoic acid
  • elaeostearic acid eicosapentenoic acid or docosahexaenoic acid
  • vegetable and animal oils such as castor oil, dehydrated castor oil (castor oil), coconut oil, palm oil, peanut oil, cotton oil, soybean oil, soybean oil, soybean oil, soybean oil,
  • Sunflower oil OH sunflower oil, linseed oil, eruca-rich and low eruca rape oil, wood oil, oitica oil, lard, tallow, sperm oil and herring oil.
  • Suitable polyhydric alcohols are glycerol, pentaerythritol,
  • Trimethylolethane and trimethylolpropane Trimethylolethane and trimethylolpropane.
  • Suitable polyvalent carboxylic acids are phthalic acid, isophthalic acid, tetra- and hexahydrophthalic acid, methylenedomethylene and 3,6-endomethylenetetrahydrophthalic acid and the corresponding anhydrides of these acids.
  • the oil or fatty acid used allows a division according to the fatty acid triacylglycerol content (oil content, oil length) into short-oil alkyd resins with ⁇ 40%, medium-oil alkyd resins with 40-60% and long-oil alkyd resins with> 60% triacylglycerol, based on solvent-free alkyd resin ( If necessary, convert the fatty acid content into triacylglycerol, factor approx. 1,045).
  • the alkyd resin AH is preferably a medium-oil or long-oil alkyd resin, particularly preferably a long-oil alkyd resin.
  • Alkyd resins AH with at least one modification component are preferably selected from the list consisting of natural resins, phenolic resins, acrylate resins, styrene, epoxy resins, silicone resins, vinyl toluene and isocyanates, in particular natural resins, phenolic resins, styrene, epoxy resins, silicone resins, vinyl toluene and isocyanates, most preferably with isocyanates .
  • Isocyanates are preferably urethane-modified alkyd resins.
  • the isocyanates used can be aliphatic isocyanates, in particular hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and dicyclohexylmethane diisocyanate (H12MDI).
  • HDI hexamethylene diisocyanate
  • IPDI isophorone diisocyanate
  • H12MDI dicyclohexylmethane diisocyanate
  • the isocyanates used can also be aromatic
  • Isocyanates especially toluene diisocyanate (TDI) or
  • MDI Diphenylmethane diisocyanate
  • the isocyanates used are preferably aromatic isocyanates, particularly preferably MDI.
  • alkyd resins AH which are soluble in
  • organic solvents selected from the list consisting of white spirit, benzene, toluene, xylene, ethyl acetate, butyl acetate, acetone, methyl ethyl ketone and cyclohexanone, particularly in white spirit, particularly preferred
  • the proportion of alkyd resin AH is 5-40% by weight, 10-30% by weight, 15-25% by weight, in particular 20-25% by weight, based on the total weight of the composition.
  • the composition comprises at least one anti-corrosion pigment KP.
  • This at least one corrosion protection pigment KP is at least one platelet-shaped corrosion protection pigment KPP and / or at least one active corrosion protection pigment KPA.
  • composition comprises a platelet-shaped corrosion protection pigment KPP, this is in particular selected from the list consisting of
  • Iron mica mica, zinc, aluminum and layered silicates, especially talc and kaolinite. Iron mica is particularly preferred.
  • the platelet-shaped anti-corrosion pigments preferably have an average diameter D50 with a range from 4 to 35 miti, more preferably from 4.5 to 30 miti, even more preferably from 5 to 25 miti.
  • Corrosion protection pigments such as those obtained by laser diffraction methods, indicate that 50% of the corrosion protection pigments have a diameter which is equal to or smaller than the respectively stated value.
  • Size distribution curve can be determined by laser diffractometry.
  • platelet-shaped pigments is advantageous for corrosion protection, since platelet-shaped pigments, unlike pigments with spherical or irregular geometries, have a barrier effect after application to the object to be protected against corrosion.
  • the proportion of platelet-shaped corrosion protection pigments KPP is 25-60% by weight, 25-50% by weight, 30-45% by weight, in particular 35-40% by weight, based on the total weight of the composition.
  • the proportion of platelet-shaped corrosion protection pigments is preferably 2-15% by weight, 3-10% by weight, in particular 3-8% by weight, based on the total weight of the
  • composition especially if the composition has microspheres.
  • composition comprises an active anti-corrosion pigment KPA, this is particularly selected from the list consisting of zinc dust, zinc oxide, zinc phosphate, calcium zinc phosphomolybdate, aluminum triphosphate,
  • Zinc iron phosphate strontium zinc phosphosilicate, calcium phosphosilicate, and zinc aluminum phosphate. It is particularly preferably zinc dust, zinc oxide and zinc phosphate, in particular zinc oxide. It is preferably an active corrosion protection pigment as described under the term “corrosion protection pigments” in Römpp Chemie Lexikon, online version, Georg Thieme Verlag, accessed on November 4, 2018.
  • the proportion of active corrosion protection pigment KPA is 2-20% by weight, 4-15% by weight, in particular 5-10% by weight, based on the
  • composition particularly preferably contains both at least one platelet-shaped corrosion protection pigment KPP and at least one active corrosion protection pigment KPA.
  • the composition comprises at least one dry substance. It is preferably a desiccant (also called desiccant) as described under the term “desiccants” in Römpp Chemie Lexikon, online version, Georg Thieme Verlag, accessed on 04 November 2018.
  • desiccant also called desiccant
  • They are preferably dry substances selected from the list consisting of salts of cobalt, zirconium, calcium, zinc, iron and manganese and mixtures thereof, in particular salts of zirconium and iron.
  • the proportion of dry substances is preferably 0.1-3% by weight, 0.3-2% by weight, in particular 0.5-1.6% by weight, based on the total weight of the
  • composition also includes microspheres and / or
  • Microspheres in the sense of the present invention are preferred
  • At least one gas includes pure gases and gas mixtures of two or more gases.
  • the at least one gas is preferably selected from air, carbon dioxide, oxygen, nitrogen, helium, neon, argon or xenon, any of them
  • Room temperature gaseous organic compounds such as
  • Hydrocarbons or halogenated hydrocarbons.
  • Hydrocarbons which are gaseous at room temperature are preferably C1-C5 hydrocarbons which are branched or unbranched (methane to pentane). Air, isobutane and isopentane are particularly preferred, most preferably isopentane.
  • Microspheres which have a single central cavity filled with gas / gases are preferred.
  • It is preferably closed-pore microspheres.
  • It is preferably expanded microspheres.
  • Preferred materials of the microspheres are natural and synthetic, in particular synthetic, polymers or copolymers, particularly preferably synthetic copolymers, most preferably cyanoacrylates and polylactides.
  • the density of the microspheres is preferably less than 100 kg / cm 3 .
  • the density of the microspheres is particularly preferably between 20 and 100 kg / cm 3 , most preferably between 20 and 50 kg / cm 3 .
  • the microspheres preferably have an average outer diameter D (0.5) of between 10 and 100 miti, preferably between 20-85 miti, particularly preferably between 25-65 miti.
  • mean outer diameter here preferably refers to the D (0.5) value of the cumulative volume distribution curve, in which 50% by volume of the particles have a diameter which is smaller than the value.
  • the mean outer diameter or the D (0.5) value is preferably by
  • a mean outer diameter D (0.5) of less than 10 miti is disadvantageous in that it significantly reduces the density of the
  • Composition is no longer guaranteed.
  • a mean outer diameter D (0.5) of more than 100 miti is disadvantageous in that the performance as a corrosion coating decreases as a result of the layer thicknesses of the corrosion coating.
  • Suitable microspheres are commercially available, for example under the brand name Expancel® from AkzoNobel. Examples include Akzo Nobel Expancel® 920 DE 40, D30 and Expancel® 920 DET 40, D25.
  • the proportion of microspheres is preferably 0.05-1% by weight, 0.1-0.9% by weight, 0.1-0.8% by weight, 0.1-0.7% by weight, 0.1-0.6% by weight, 0.1-0.5% by weight .-%, in particular 0.1 - 0.3 wt .-%, based on the total weight of the
  • a proportion of more than 1% by weight is disadvantageous in that the
  • composition has microspheres, this is especially for
  • Table 2 shows, for example, under consumption [g / m 2 ] (pm layer thickness dry / wet) in comparison of
  • compositions with (E4-E6) and without microspheres (E7-E9) show that compositions without microspheres have a significantly higher
  • Composition according to the invention at least one platelet-shaped
  • compositions according to the invention have a high density and thus a high density
  • compositions according to the invention containing at least one platelet-shaped corrosion protection pigment KPP are not just as good
  • Corrosion protection values but sometimes enables better performance, and this with less space.
  • Corrosion protection composition additionally at least one active
  • microspheres are also available in wall colors for the
  • compositions / systems with microspheres surprisingly meet the requirements of the
  • Corrosion protection tests as good as the compositions / systems without microspheres. This is shown, for example, by comparing Tables 5 and 6 and Tables 7 and 8, respectively.
  • Microspheres leads to an improvement in the tear-off values and the corrosion at the Ritz values in the test "Resistance to salt spray" on steel (preferably blasted). It was also surprisingly found that the use of microspheres improves the tear value after 10 d
  • the benzene hydrocarbon resin is preferably
  • reaction products of alkylated benzenes in particular m-xylene, with an excess of formaldehyde, in particular xylene-formaldehyde resins.
  • Such xylene-formaldehyde resins can be reacted, for example, with rosin, in particular esterified, or with substituted phenols.
  • the proportion of benzene hydrocarbon resins is preferably 0.1-1.5% by weight, 0.2-1.2% by weight, 0.2-1.0% by weight, 0.2-0.8% by weight, in particular 0.3-0.6% by weight, based on the Total weight of the composition.
  • Pendulum hardness according to König especially in the range of 25-35 seconds, can be obtained. This can be seen, for example, in Table 2 when E1, E2 and E3 are compared.
  • Benzene-hydrocarbon resins lead to an improvement in the cross-cut values and the tear-off values in the "Resistance to moisture" test on galvanized steel (washed). Washed substrates are more demanding surfaces than swept substrates.
  • the corrosion protection composition particularly preferably has microspheres and benzene hydrocarbon resins.
  • composition can also contain additives selected from the list consisting of defoamers, rheology additives, skin-preventing agents and color pigments.
  • the proportion of color pigments is preferably 1-15% by weight, 2-10% by weight, 3-8% by weight, in particular 3-5% by weight, based on the total weight of the composition.
  • composition preferably contains further fillers. Suitable
  • Fillers are, in particular, ground or precipitated calcium carbonates, which are optionally coated with fatty acids, in particular stearates, barites (heavy spades), quartz flours, quartz sands, dolomites, wollastonites,
  • the proportion of fillers is preferably 2-30% by weight, based on the total weight of the composition.
  • Suitable solvents are especially selected from the list consisting of acetone, methyl ethyl ketone, methyl n-propyl ketone, diisobutyl ketone,
  • the proportion of solvent is preferably 10-40% by weight, 15-35% by weight, in particular 18-30% by weight, based on the total weight of the
  • the composition preferably has less than 5% by weight, less than 2% by weight, less than 1% by weight, less than 0.5% by weight, in particular less than 0.1% by weight of water, based on the total weight the
  • the composition preferably consists of more than 80% by weight, more than 85% by weight, more than 90% by weight, more than 95% by weight, more than 98% by weight, more than 99% by weight. %, more than 99.5% by weight, in particular more than 99.9% by weight, based on the total weight of the composition, of:
  • At least one alkyd resin AH preferably a urethane-modified alkyd resin
  • at least one corrosion protection pigment KP the at least one corrosion protection pigment KP by at least one platelet-shaped corrosion protection pigment KPP, in particular selected from the list consisting of iron mica, mica, zinc, aluminum, layered silicates, in particular talc and kaolinite, and
  • KPA active corrosion protection pigment
  • -Benzene hydrocarbon resins especially xylene-formaldehyde resins, preferably xylene-formaldehyde resins reacted with substituted phenols,
  • defoamers rheology additives, anti-flare agents and color pigments.
  • the aforementioned constituents are preferably variants and quantities such as those described as preferred variants and quantities in the description.
  • composition is preferably stored in an airtight container.
  • a suitable container is, in particular, a barrel, a container, a bobbin, a bucket, a can, a bag, a canister or a bottle.
  • composition is stable on storage, which means that it can be stored in the respective container for several months to a year or longer before it is used, without its properties changing to an extent relevant to its use.
  • the invention further relates to a dried composition obtained from a composition as described above after drying the composition.
  • the composition can be applied as a coating on a surface, for example a flat surface, an inclined surface or on a surface overhead.
  • the composition is preferably applied by spraying, preferably with a spray pressure of more than 50 bar, in particular more than 100 bar. However, it can also be applied by pouring it onto a substrate and then spreading it flat over the desired layer thickness, for example by means of a roller, a brush or a brush.
  • the present invention relates to a method for applying the aforementioned composition as a coating to a substrate.
  • a substrate preferably the substrates listed below as preferred
  • coating is used both for a single “layer” from the applied composition and for a “coating structure” (also called “coating system” or “system”).
  • coating structure also called “coating system” or “system”.
  • the latter consists of one or more “layers”.
  • Such a “coating system” can, for example, consist of the following three “layers”; Primer, intermediate coat and top coat.
  • a layer preferably has a layer thickness (dry layer thickness) of 50-160 miti, 60-120 miti, in particular 80-100 miti.
  • a coating system preferably has a layer thickness
  • Another aspect of the invention relates to the use of the
  • Corrosion protection composition according to the invention as a coating, in particular as a primer, intermediate coating and
  • Top coat especially for construction and industrial applications. Possible uses are found in vehicles, loading areas, tanks, silos, shafts, pipelines, pipelines, machines or steel structures, for example of piers, wind turbines, bridges and cranes, in particular in steel structures, preferably bridges.
  • Suitable substrates which can be coated with the composition are in particular metals or alloys such as aluminum, copper, iron, steel, non-ferrous metals, including surface-finished metals or
  • Alloys such as galvanized or chromed metals. It is particularly preferably steel.
  • the aforementioned substrates are preferably substrates which are exposed to atmospheric stress.
  • water e.g. a sheet pile wall
  • the substrates mentioned above are preferably objects selected from the list consisting of vehicles, loading areas, tanks, silos, shafts, pipelines, pipelines, machines or steel structures, for example piers, wind turbines, bridges and cranes, in particular steel structures, preferably bridges.
  • the substrates can be pretreated before application, in particular by physical and / or chemical cleaning processes.
  • the coating is in particular a component of a corrosion coating - if necessary, a primer,
  • the corrosion protection composition according to the invention can represent the primer and / or the intermediate coating and / or the top coating of the corrosion coating.
  • two, in particular all, of the aforementioned layers consist of the corrosion protection composition according to the invention.
  • the layers of a composition not according to the invention can in particular be a composition based on a
  • composition selected from the list consisting of
  • a primer is applied to wet the surface, improve corrosion protection and a primer serves as an adhesion promoter for layers above.
  • the corrosion coating preferably consists of:
  • all of the aforementioned layers consist of the corrosion protection composition according to the invention
  • Another object of the invention is thus an article comprising the dried composition obtained from the use described. It is preferably an object mentioned above selected from the list consisting of vehicles, loading areas, tanks, silos, shafts, pipelines, pipelines, machines or steel structures, for example of piers, wind turbines, bridges and cranes, in particular steel structures, preferably bridges.
  • the present invention relates to such an article. It is preferably an object mentioned above selected from the list consisting of vehicles, loading areas, tanks, silos, shafts, pipelines, pipelines, machines or steel structures, for example piers,
  • composition according to the invention has advantageous properties: Grid cut values and tear-off values in the test “resistance to moisture” and / or in the test “resistance to salt spray” on galvanized steel (swept) of ⁇ 1, in particular 0, according to DIN EN ISO 9227 NSS ,
  • Pendulum hardness according to König (DIN EN ISO 1522); > 15, preferably 15-40, 20-40, in particular 25-35, in particular according to the method described in the example section.
  • the invention relates to the use of
  • Microspheres in anti-corrosion compositions for improvement: -The cross-cut values in the test "Resistance to salt spray" on galvanized steel (preferably swept); and or
  • the improvement relates to the comparison to the above
  • Composition that has no microspheres.
  • the aforementioned tests are preferably test methods in accordance with DIN EN ISO 6270-1 or DIN EN ISO 9227 NSS,
  • the invention relates to the use of
  • the improvement relates to the comparison to the above
  • composition containing no benzene hydrocarbon resins Composition containing no benzene hydrocarbon resins.
  • the aforementioned tests are preferably test methods in accordance with DIN EN ISO 6270-1 or DIN EN ISO 9227 NSS,
  • the example labeled "Ref.1" is a comparative example.
  • compositions E4 and E7 are
  • compositions particularly suitable as primers.
  • compositions E1-E3, E5 and E8 are identical to each compositions E1-E3, E5 and E8.
  • compositions particularly suitable as intermediate coatings.
  • compositions E6 and E9 are identical to The compositions E6 and E9.
  • compositions particularly suitable as top coatings.
  • Table 2 shows the savings due to the microspheres from the "Solid”, “Wet / dry density” and “Consumption” categories.
  • compositions without microspheres have a significantly higher consumption in terms of a dry layer thickness to get from 80 pm.
  • sample plates were produced in accordance with the requirements of DIN EN ISO 1522.
  • the measurement was carried out after storage for 28 days in a normal climate (23 ° C., 50% atmospheric humidity) and a dry layer thickness of 80 pm.
  • Particularly preferred values are in the range from 25 to 35 seconds.
  • the measured values can be seen in Table 2 under "Pendulum hardness".
  • total layer thickness was determined after seven days of conditioning at (23 ⁇ 2) ° C and (50 ⁇ 5)% relative humidity in accordance with DIN EN ISO 2808, method 7C.
  • Salt spray according to DIN EN ISO 9227 NSS (" Salt spray test “,” NSS “for” neutral salt spray "). System 3 values are superior to System 1 even in all of the previously mentioned areas.
  • Test procedure Test according to DIN EN ISO 9227 NSS
  • Adhesive tape Testa tape 4651
  • Adhesive tape Testa tape 4651 A comparison of Tables 5 and 6 or Tables 7 and 8 shows that the performance of the compositions / systems with microspheres meets the requirements despite the lower density and therefore achieves the same properties as the compositions / systems without microspheres.
  • system according to the invention surprisingly shows a greatly improved performance in system 8 of table 7 vs. System 11 in Table 8 regarding the cross cut (resistance to salt spray, (cross cut (DIN EN ISO 2409)), 0-1 vs. 3-4).
  • the system containing microspheres also surprisingly shows an improved performance in system 7 of table 7 vs. System 10 in Table 8 with regard to the tear value (resistance to salt spray, (tear value (DIN EN ISO 4624)), 6.6 vs. 5.7) and the corrosion at the scratch (corrosion at the scratch (DIN EN ISO 4628-8) ), 2.0 mm vs. 1.5 mm).
  • system containing microspheres surprisingly shows an improved performance in system 7 of table 5 vs.
  • System 10 in Table 6 regarding the tear value after 10 d reconditioning

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne une composition anticorrosion à base de résines alkydes, des pigments anticorrosion, notamment des pigments anticorrosion sous forme de plaquettes et/ou des pigments anticorrosion actifs, des siccatifs et des microsphères et/ou des résines à base d'hydrocarbure de benzène. Ces compositions anticorrosion présentent une efficacité améliorée lors de tests de corrosion exigeants sur des substrats métalliques.
EP19798098.0A 2018-11-08 2019-11-08 Composition anticorrosion à base de résines alkydes Withdrawn EP3877469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18205120.1A EP3650504A1 (fr) 2018-11-08 2018-11-08 Composition de protection contre la corrosion à base de résines alkyde
PCT/EP2019/080757 WO2020094873A1 (fr) 2018-11-08 2019-11-08 Composition anticorrosion à base de résines alkydes

Publications (1)

Publication Number Publication Date
EP3877469A1 true EP3877469A1 (fr) 2021-09-15

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EP18205120.1A Withdrawn EP3650504A1 (fr) 2018-11-08 2018-11-08 Composition de protection contre la corrosion à base de résines alkyde
EP19798098.0A Withdrawn EP3877469A1 (fr) 2018-11-08 2019-11-08 Composition anticorrosion à base de résines alkydes

Family Applications Before (1)

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EP18205120.1A Withdrawn EP3650504A1 (fr) 2018-11-08 2018-11-08 Composition de protection contre la corrosion à base de résines alkyde

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EP (2) EP3650504A1 (fr)
WO (1) WO2020094873A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2038768A1 (de) 1970-08-04 1972-02-10 Bayer Ag Lackbindemittel
DE3637675A1 (de) 1986-11-05 1988-05-19 Bayer Ag Waessrige bindemittelzusammensetzung und deren verwendung
GB0223471D0 (en) * 2002-10-10 2002-11-13 Kalantar Ali Heat insulation coatings used in the prevention of corrosion under insulation
US9005355B2 (en) * 2010-10-15 2015-04-14 Bunge Amorphic Solutions Llc Coating compositions with anticorrosion properties
DK2540781T3 (en) * 2011-06-29 2017-03-13 Raimund Beck Nageltechnik Gmbh Fastener with coating containing filler
DE102016121807A1 (de) * 2016-11-14 2018-05-17 Joint Stock Company Railway Research Institute Solarstrahlung-reflektierende Beschichtung und deren Verwendung
EP3615585A1 (fr) * 2017-04-26 2020-03-04 Arkema, Inc. Revêtement thermo-isolant présentant une faible conductivité thermique

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WO2020094873A1 (fr) 2020-05-14

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