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
  • C09D5/08—Anti-corrosive paints
  • C09D5/10—Anti-corrosive paints containing metal dust
• • 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
  • B05D7/542—No clear coat specified the two layers being cured or baked together
• • 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
  • C09D7/48—Stabilisers against degradation by oxygen, light or heat
• • 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
  • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other 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
  • B05D2504/00—Epoxy polymers
• • 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
  • B05D2518/00—Other type of polymers
  • B05D2518/10—Silicon-containing polymers
• • 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
  • B05D2601/00—Inorganic fillers
  • B05D2601/20—Inorganic fillers used for non-pigmentation effect
  • B05D2601/28—Metals
• • 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

Definitions

• the present invention relates to a process for producing a corrosion protection coating on a substrate and to a corrosion protection coating obtainable by this process.
• Anti-corrosive coatings and coating agents for producing such coatings are known in the art.
• DE 10 2004 034 645 A1 discloses a corrosion protection coating composition for metal comprising an organic binder with an organosilicon compound and a particulate metal.
• Organosilicon compounds proposed are polyorganosiloxane resins and, in particular, silicon-modified epoxy resin.
• the coating agent is applied to the workpiece in liquid form and precrosslinked at a temperature of 130 ° C. over a period of 30 minutes. Subsequently, the first layer thus obtained is provided with a black Epoxidharzpulverlack as a topcoat and both layers are cured together at a temperature of 160 ° C to 200 ° C.
• CA 2,560,335 A1 also discloses an anticorrosive coating containing a binder of condensed silanes with epoxy, mercaptan or hydroxyalkyl groups.
• the binder is mixed with metal particles and predried after application to a substrate for 10 minutes at 80 ° C or cured for 30 minutes at 300 ° C. Subsequently, the first layer is provided with another epoxysilane-based coating and both layers are cured together at 150 ° C for 20 minutes.
• DE 10 2006 003 956 proposes a method for producing an anticorrosive coating, wherein first a sol-gel film is applied and cured, and then at least one further layer is applied.
• the methods known in the prior art for the production of anticorrosive coatings have the disadvantage that the first layer must first be precured for at least 10 minutes at elevated temperatures in the range of 80 ° C to 130 ° C before the cover and protective layer are applied can.
• the application of appropriate anticorrosive coatings time and energy consuming and therefore associated with undesirably high costs, especially in mass production.
• the construction of the known anticorrosion coatings of two layers of different chemical composition, of which the first layer is first at least partially cured before the second layer is applied results in the coating as a whole not having the desired protective effect under all conditions.
• the known anticorrosive coatings have insufficient resistance to chemicals and especially detergents.
• An object of the present invention is to overcome the mentioned disadvantages of the prior art.
• a corrosion protection coating is to be made available, which can be produced quickly and with the least possible expenditure of energy and which is constructed such that the upper cover and protective layer protects the underlying first metal-particle-containing corrosion protection layer particularly effectively, for example against environmental influences or the attack of chemicals.
• the corrosion protection coating should have a high hardness and thus resistance to mechanical wear or damage.
• the present invention thus relates to a method for producing a corrosion protection coating on a substrate, comprising the steps:
• the curing catalyst used in the first and second Besc ichtungssch a metal alkoxide, wherein the metal alkoxide is not silicon alkoxide.
• both layers can be cured simultaneously and rapidly at a relatively low temperature. It is therefore no longer necessary, in contrast to the prior art, at least partially precuring the first layer before applying the second layer, but the second layer can be applied to the first layer immediately or after brief drying. As a result, the overall process for producing the anticorrosive coating is substantially accelerated and, moreover, it is not necessary to heat the substrate coated with the first layer and then to cool it again before applying the second layer, so that both energy and time are saved.
• the metal alkoxide hardening catalyst in both layers enables simultaneous curing of the two layers at a comparatively low temperature of, for example, only about 110 ° C.
• the resulting anti-corrosion coating is particularly insensitive to environmental or chemical influences.
• a brake disk provided with the anticorrosion coating according to the invention also has a substantially greater contact with commercial rim cleaners, which apparently permeate the cover and protective layer of corrosion protection coatings known from the prior art and can attack the underlying metal particle-containing anticorrosion layer Resistant.
• the corrosion protection coating obtainable by the process according to the invention is particularly stable to mechanical influences, such as scratching.
• both the first and second coating agents contain a metal alkoxide.
• suitable metal alkoxides may be used Be chosen professional.
• the two coating compositions may contain identical or different metal alkoxides as curing catalysts. Both coating compositions preferably contain the same metal alkoxide.
• alkoxides of aluminum, titanium, zirconium, tantalum, niobium, tin, zinc and tungsten are suitable, wherein as alkoxides preferably CI_ 10 -, in particular C ⁇ alkoxy groups are present.
• Suitable curing catalysts are zirconium isopropylate, zirconium n-propylate, zirconium tert-butoxide, tantalum ethanolate, tantalum tert-butylate, niobium ethoxide, niobium tert-butylate, tin tert-butoxide, tungsten ( VI) ethanolate, germanium ethanolate, germanium iso-propylate, titanium (IV) methoxide, titanium (IV) ethoxide, titanium (IV) sec-butoxide, titanium (IV) t-butoxide, titanium (IV) isobutylate, Titanium (IV) isopropylate, titanium (IV) n-propylate, titanium (IV) -2-ethylhexyl oxide, titanium (IV) (triethanolaminato) isopropoxide, titanium diisopropoxide bis (acetylacetonate), dibutyl triethanolamine titanate, t
• alkoxides for example of aluminum, titanium or zirconium
• unsaturated carboxylic acids and beta-dicarbonyl compounds such as methacrylic acid, acetylacetone and ethyl acetoacetate, suitable complexing agents.
• Particularly preferred curing catalysts according to the invention are aluminum butoxyethanolate and an aluminum acetylacetonate complex.
• Particularly chemical resistant anticorrosive coatings are obtained by the process according to the invention when the first and the second coating agent contain the same epoxy-modified silicon dioxide and the same Curing catalyst included. As a result, a particularly uniform curing of the first and second layer is achieved. In addition, both layers have similar chemical compositions after curing, so that the upper cover and protective layer can protect the underlying metal particle-containing corrosion protection layer particularly effective.
• each of the two Beschi treatment is not particularly limited and depends on the desired curing time and temperature.
• each of the two layers may contain the curing catalyst in an amount of 0.5-20 wt.% Based on the weight of epoxy-modified silica in the particular coating agent.
• Suitable epoxy-modified silica binders are known to the person skilled in the art and can be obtained, for example, by condensation of epoxy-modified alkoxysilane.
• Corresponding Kondenstionsre force are known as sol-gel method.
• sol-gel method the hydrolyzable alkoxy groups of the alkoxysilanes used are cleaved off, the silanes condensing to form silica sols.
• the epoxy modifications contained in the alkoxysilanes used are excluded from this condensation reaction, so that epoxy-modified silica sols are formed.
• the alkoxy radicals are split off during the condensation and are released as alcohol into the reaction solution.
• the epoxy-modified silica can be prepared either exclusively from said epoxy-modified alkoxysilanes or from a mixture of epoxy-modified alkoxysilanes with other, non-epoxy-modified silanes, especially alkoxysilanes, such as phenylethyltrimethoxysilane, phenylethyltriethoxysilane, phenylmethyldiethoxysilane, phenyldimethylethoxysilane, 3-aminopropyltriethoxysilane (APTES), aminoethylaminopropylsilane, 3 -
• alkoxysilanes such as phenylethyltrimethoxysilane, phenylethyltriethoxysilane, phenylmethyldiethoxysilane, phenyldimethylethoxysilane, 3-aminopropyltriethoxysilane (APTES), aminoethylaminopropy
• Aminopropyltrimethoxysilane (APTMS), N- (2-aminoethyl) -3-aminopropyltrimethoxysilane (DIAMO), N- (2-aminoethyl) -3-aminopropylmethyldimethoxysilane, N-cyclohexyl-3-aminopropyltrimethoxysilane, benzylaminoethylaminopropyltrimethoxysilane, vinylbenzylaminoethylaminopropyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane (VTEOS) , Vinyldimethoxymethylsilane, vinyl (tris) methoxyethoxy) silane,
• the epoxy-modified silica used in both coating compositions should in each case contain 0.5-10 mol, preferably 1-5 mol, of epoxy groups per kg of epoxy-modified silicon dioxide.
• both coating agents may contain the epoxy-modified silica in the form of particles having a size in the range from 0.1 nm to 10 ⁇ m, preferably in the range from 1 nm to 100 nm, particularly preferably in the range from 5 nm to 100 nm, for example about 10 nm or about 50 nm.
• the size of the particles is determined according to ISO 22412 by means of dynamic light scattering (specialized analysis methods for multimodal size distributions and zeta potential / electrophoretic mobility distributions).
• Suitable epoxy-modified alkoxysilanes are compounds of the formula
• R 1 R 2 n Si (OR) 3 n is 0.1 or 2, preferably 0 or 1, R 1 is an epoxy-functional group,
• R 2 is hydrogen or any organic radical, for example Ci -5 alkyl, aryl (especially phenyl), amino-C ⁇ alkyl, cyclohexyl, or vinyl, and
• RO is Ci -5- alkoxy, preferably methoxy or ethoxy, more preferably ethoxy.
• the epoxy-functional group R 1 may, for example, be an epoxyalkyl group whose alkyl group may be interrupted by one or more heteroatoms, such as oxygen or nitrogen.
• the alkyl group may also be substituted with one or more substituents such as hydroxy, amino, carboxy or aryl.
• the alkyl group can be straight-chain, branched and / or ring-shaped available.
• Preferred alkyl groups contain 1-20, especially 1-10, carbon atoms outside of the oxirane ring. Most preferably, the alkyl group is interrupted by an oxygen atom.
• a particularly preferred epoxy-functional group is the glycidoxypropyl group.
• Examples of suitable epoxy-modified alkoxysilanes are 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, 3,4-
• Epoxycyclohexyl) ethyltrimethoxysilane 3-glycidoxypropyldimethylethoxysilane, 3-glycidoxypropyldimethylmethoxysilane, 3-glycidoxypropylmethyldiethoxysilane and 3-glycidoxypropylmethyldimethoxysilane.
• the metal alkoxide used as a curing catalyst tends to precipitate from the coating agents, for example in the form of oxides, in particular aluminum oxide. It has surprisingly been found that this undesired reaction, if it occurs, can be suppressed by the curing catalyst already being present during the condensation of the epoxy-modified alkoxysilane. It is believed that the cure catalyst in this case complexes with the epoxy groups of the epoxy-modified alkoxysilane, whereby the cure catalyst is homogeneously distributed in the resulting epoxy-modified silica sol and does not precipitate in aqueous solution to form a metal oxide.
• the curing catalyst if already present during the condensation of the epoxy-modified alkoxysilane, shifts the reaction equilibrium to the side of the silica without the need, as described in CA 2,560,335 A1, for liberating the alcohol from the reaction solution to move the balance to the side of the silica.
• the use according to the invention of a metal alkoxide as curing catalyst thus has the additional advantage that the epoxy-modified silica-containing sol can be prepared more simply and more quickly, since the alcohol released can remain in the solution.
• the corrosion protection effect of the corrosion protection coating obtained by the process according to the invention is carried out by the metal particles contained in the first layer. These provide a cathodic corrosion protection.
• Suitable metals include, for example, zinc, aluminum, tin, iron, manganese, magnesium, copper, nickel, chromium, molybdenum, and mixtures or alloys thereof.
• Suitable metal alloy particles are, for example, zinc-aluminum particles, zinc-magnesium particles, zinc-nickel particles and chromium-nickel-iron particles.
• zinc and zinc-aluminum alloys provide highly effective cathodic corrosion protection.
• the metal particles can be used in the form of powders or so-called flakes, with platelet-shaped flakes assisting the layer formation when the coating composition is applied to a substrate.
• the metal particles may be used singly or in any mixture of two or more metal particles.
• the first coating agent contains, in addition to the metal particles, organic or inorganic conductive substances such as, for example, iron phosphide, carbon black or nanotubes.
• the size of the metal particles used is not particularly limited and may be, for example, in the range of 0.1-50 ⁇ m, preferably 1-20 ⁇ m.
• the amount of the metal particles used is not particularly limited. It depends on the metal particles used and the desired corrosion protection effect and can, for example, in the range of 1-90 wt .-%, preferably 20-80 wt .-%, particularly preferably 50-70 wt .-% metal particles based on the dry weight of the first Coating agent are, where dry weight, the weight of the constituents of the coating composition is understood without solvent.
• the second coating agent contains metal particles.
• the temperature resistance of the corrosion protection coating obtained is increased to over 300 ° C, so that the coating is suitable for example for brake discs.
• the metal particles the above-described metal particles may be used in the second coating agent. Preference is given to aluminum particles.
• an emulsifier is added so that the metal particles are distributed easily and homogeneously in the coating composition.
• Both coating compositions may additionally contain, independently of one another, additional components such as, for example, crosslinking agents, adhesion promoters, additives, thickeners, fillers, corrosion inhibitors, anticorrosion pigments and also coloring pigments.
• additional components such as, for example, crosslinking agents, adhesion promoters, additives, thickeners, fillers, corrosion inhibitors, anticorrosion pigments and also coloring pigments.
• the first and / or the second coating agent contains a black filler which simultaneously acts as a coloring pigment.
• black iron oxide, spinels, carbon black, graphite and MoS 2 are suitable for this purpose.
• the coating agent if it contains a filler, does not contain aluminum particles.
• a combination of black iron oxide pigment and zinc particles is used. Particularly preferably, this combination is present in the first coating agent.
• the first and second coating agents contain a black pigment, for example iron oxide.
• the second coating agent contains a pigment, in particular a black pigment, such as, for example, iron oxide, it is possible to dispense with the metal particles in the second coating agent.
• the second coating agent is preferably free of metal particles.
• both coating agents are aqueous.
• the coating agents may contain the alcohol liberated in the preparation of the epoxy-modified silica, but it is desirable to minimize the amount of alcohol in the coating agent since the alcohol is released upon final cure. Accordingly, it is advantageous if at least the second, but preferably both, coating compositions contain less than 10% by weight, preferably less than 5% by weight and particularly preferably less than 3% by weight of alcohol, based on the total weight of the particular coating composition.
• the first layer may be partially cured prior to application of the second layer.
• the method according to the invention is particularly advantageous if the second layer is applied to the first layer which has not yet been cured, wherein "not cured” here includes drying of the first layer.
• drying or “drying” is understood to mean a process in which essentially only, preferably exclusively, solvent used evaporates, without any crosslinking of the binder molecules taking place.
• the actual curing then takes place by the chemical crosslinking reaction of the binder molecules, with partial curing meaning partial crosslinking. Since the crosslinking reaction takes place only at higher temperatures and over time, the drying, drying, partial curing and complete curing of the first layer can be adjusted by selecting suitable temperatures and holding times.
• the drying or drying of the first layer can be carried out, for example, at room temperature (about 23 ° C.) for 10 seconds to 60 minutes, preferably for 1 to 20 minutes. At higher temperatures, the time should be shorter, with the temperature usually not exceeding 100 ° C, preferably 85 ° C, more preferably 50 ° C, so as not to favor crosslinking of the binder molecules.
• the drying of the first layer at a temperature in the range to less than 85 ° C, preferably up to 80 ° C, to 50 ° C to 45 ° C, to 40 ° C, to 38 ° C, to 35 ° C, to 33 ° C or up to 30 ° C.
• the temperature may also be higher, without a crosslinking reaction of the binder molecules used, for example, 80 ° C to 100 ° C for 6 sec. To 10 sec.
• the first layer is wet-chemically applied to a substrate which is for example slightly preheated to about 50 ° C., preferably about 40 ° C., and at about 80 ° C. to about 100 ° C. for about 6 seconds to about 10 sec.
• the second layer is then wet-chemically applied to the first layer.
• the first layer dries slightly on the substrate, but due to the relatively low temperature and the short time, curing of the first layer does not occur.
• the drying of the first layer before the application of the second layer prevents unwanted mixing of the constituents of the layers with one another.
• the application of the layers can be done by conventional methods such as spraying or dipping.
• the applied layers can each have a dry film thickness in the range from 1 to 50 ⁇ m, preferably in the range from 5 to 30 ⁇ m.
• low layer thicknesses lead to improved flexibility of the coating, so that, for example, coatings on spring materials are less likely to chip off.
• the two layers are finally cured simultaneously.
• the curing is carried out by heating, for example, to a temperature in the range of 50-300 ° C.
• the inventive method is characterized in an advantageous manner, however, characterized in that due to the curing catalyst used curing at a relatively low temperature in the range of, for example, 80 ° C to 200 ° C, preferably 80 ° C to 150 ° C, in particular about 1 10th ° C can take place.
• the anticorrosion coating can be applied to any suitable substrate and in particular to any metallic substrate.
• suitable substrates are engine blocks, rims, gearbox housings, bodies and their parts, brake discs, attachments, axles, carrier parts, fasteners, crossbeams, control arms, gears, pipes, pipelines, masts, crash barriers, railings, scaffolding, sheets, screws, bolts, Rivets and profiles.
• the anticorrosive coating according to the invention is applied to brake discs.
• the brake disk is first heated slightly, for example, to a temperature of about 40 ° C, and the first coating agent is applied to the heated brake disk. As a result, the first layer dries immediately, but does not harden.
• the second layer is then applied to the dried but not cured first layer and both layers are subsequently cured simultaneously.
• Curing can be carried out at a relatively low temperature in the range of, for example, 100 ° C to 200 ° C, preferably in the range of 100 ° C to 150 ° C, such as about 110 ° C or 130 ° C, due to the curing catalysts employed in the two coating compositions C done.
• the drying but not curing of the first layer after its application to the preheated substrate, in particular the brake disc, has the advantage that little energy is consumed and also the corrosion protection coating can be produced at high speed, since a separate, even only partial curing of the first Layer is not necessary.
• the present invention relates to the corrosion protection coating obtainable by the process according to the invention.
• the attached Figure 1 shows the attack of the lower layer of a non-inventive corrosion protection coating by rim cleaner.
• FIG. 2 shows the resistance of a corrosion protection coating according to the invention to rim cleaners.
• Example 2 first coating agent
• 500 g of the binder prepared according to Example 1.3 are placed in a beaker and mixed with 25 g of a fumed silica (eg Cab-O-Sil® EH5, Cabot) and dispersed for 2 h with a dissolver.
• a fumed silica eg Cab-O-Sil® EH5, Cabot
• 250 g of platelet-shaped zinc flakes having a diameter of 0-20 pm and 25 g of platelet-shaped aluminum pigment having a particle diameter of 10-20 pm and 200 ml of distilled water and 3 g of emulsifier (Marlipal® 24/60, from Sasol) are added and with a Propeller stirrer stirred for 4 h and stirred for a further 12 h.
• 500 g of the binder prepared according to Example 1.2 are placed in a beaker and admixed with 25 g of a fumed silica (for example Aerosil® 300, Evonik) and dispersed in for 2 hours with a dissolver.
• a fumed silica for example Aerosil® 300, Evonik
• 250 g of platelet-shaped zinc flakes having a diameter of 10-20 ⁇ m and 100 g of black iron oxide pigment and 200 ml of distilled water and 3 g of emulsifier (Marlipal® 24/60, from Sasol) are added to the batch and stirred in with a propeller stirrer for 4 h and stirred for another 12 h.
• glycidyloxypropyl methoxysilane (Dynasylan Glymo, Degussa) are added according to CA 2,560,335 A1 127.3 g of Levasil 200E (Bayer) and stirred for 3h.
• the solids content of the sol is about 35% by weight.
• This second coating composition is overcoated (topcoat) with zinc and aluminum-pigmented anticorrosion paint according to Example 2.1, baked together at 110 ° C. Layer thickness base coat approx. 15 pm, topcoat approx. 10 pm.
• Dynasylan Glymo (Degussa) are added 5 g of x-add KR 9006 and, after homogeneous mixing, 127.3 g of Levasil 200E (Bayer) and stirred for 3 h.
• the solids content of the sol is about 35% by weight.
• This second coating agent as an overcoat (topcoat) for zinc and aluminum pigmented anticorrosive paint according to Example 2.1, baked together at 1 10 ° C. Layer thickness base coat approx. 15 ⁇ , topcoat approx. 10 ⁇ .
• glycidyloxypropyltriethoxysilane (Dynasylan Glyeo, Degussa) are added 5 g of x-add KR 9006 (NANO-X) and, after homogeneous mixing, 200 g of Klebosol 30cal 50 (AZ Electronic Materials) and stirred for 5 h. Thereafter, 10 g of aluminum pigment Stapa 777n.l. and 1 g of Byk 348 added and the aluminum pigment stirred for about 5h homogeneous.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Wood Science & Technology (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Inorganic Chemistry (AREA)
• Paints Or Removers (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47833073

Family Applications (1)

Country Status (3)

Cited By (2)

Families Citing this family (2)

Citations (6)

• 2012
  • 2012-03-22 DE DE102012005806A patent/DE102012005806A1/de not_active Ceased
• 2013
  • 2013-03-06 EP EP13707870.5A patent/EP2828007A1/fr not_active Withdrawn
  • 2013-03-06 WO PCT/EP2013/054473 patent/WO2013139599A1/fr not_active Ceased

Patent Citations (6)

Also Published As

Similar Documents

Legal Events