DE1519220A1 - Process for protecting surfaces against foreign matter - Google Patents

Description

Procedure for sealing surfaces against foreign substances

The invention relates to improvements in Ytrfahrtn sua Protection of surfaces, such as the surfaces used in the environment, for example the empty surfaces of aircraft and public transport and other vehicles, against foreign substances, which aioh when Deposit use on these surfaces, or the ffhlg are to damage these surfaces by.Koriifoeion, for example dirt or acidic vapors in the tuft · ** Λ. -

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Aircraft, in particular eohnellf recumbent

in flight or when standing on the airfield for everyone »,

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Vehicles of all types and buildings, especially those with

non-load-bearing walls tend to accumulate eiaee Sohmutt «films on their outer surfaces. Such films, at least sometimes, _{absorb acids, such as 0O 9} or 8O ₉ , from which they tend to exert a corrosive effect on any surface covering or cover applied to them, whereby the surface can possibly be destroyed, if Mn If the surfaces exposed to the nozzles are seen with a streak of color, the dirty film tends to adhere to the Ηψ ^ ηΜίΪΜ or coating or to stick firmly into it. The same conditions apply, for example, to the external area of public transit portals and other areas and to the surface of belts and other permanent facilities.

Such surfaces must therefore be washed and tortured in order to remove the adhering dirt. The accounts of time and work to keep the surfaces clean, aind Ho Oh. The removal of this re-creating and

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Films made of foreign substances, which, for example, on aircraft and ajeohanieohen driver's eyes * err or stuck together The use of high-pressure jet washers often requires manual efforts in the form of

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Rubbing or scrubbing the outer surface and the use

from aggressive cleaning agents, such as pumice stone, which the

" ^: '-ii'M ' ■■■ Surface can be made by using the material of the upper fläohe often their shell cover from a pigment film one attack anodized layer or corrosion-resistant metal *,

If einnm with paint surfaces provided, in particular those of aircraft hoohfllegenden _t of exposure to ultraviolet light, the occurs a form of damage to the pigment film, which is known as pulverization (chalking). The surface layer of the binding fabric is gradually destroyed, so that the pigments remain in the form of a loosely bound powder on the surface and the shimmer of the high-gloss sack cover EU becomes an irregular and unpleasant, matt surface. The white and rough surface layer increases the amount and retention of harmful dirt - and radioactive particles from the upper atmosphere on the surface of the deodorant and allows rain, dew and other atmospheric precipitation to adhere to the surface longer than would be possible on a shiny surface. The overall effect consists in an increase in the degree of erosion of the fig filar and in an increase in its frequency

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the necessary cleaning to keep the surface in the desired condition. This increase in the frequency of cleaning increases the wear and tear of the pigment film and reduces its life. To herzusteilen the original shine of the pigment film again was ee previously necessary, the surface with mild abrasives under comparison -wendung mechanical means or by hand au polish "This work away zwangeläufig parts of the pigment films * In addition iet s difficult this work in a controlled manner to carry out «

The aim of the invention is to create a method for treating such surfaces, for example Xuft- and land vehicles to meet the aforementioned disadvantage and in particular to protect the surfaces of such vehicles from the corrosive effects of the foreign matter deposited on them, or to protect their appearance a pulverized one by restoring the shine

To improve pigment films and 'to make it possible / the

■ ■? ■ ■ 'surfaces quickly with relatively mild inclination * ^

medium to clean, with an upper pull on the same side

receives that against climatic conditions, such as levers, dew or

Rain, which causes precipitation, is persistent. BATH ORIGINAL

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A method has now been found to »protect surfaces against foreign substances, such as sohmuta or harmful constituents of the ambient air,» in which an uninterrupted coating or an aqueous solution or emulsion of an acid-resistant, alkali-miscible one that can be diluted with water, is acid-resistant, is applied to the pure surface compound applied and enables the aqueous phase, that from the coating or the like film on the surface by evaporation a shiny, reflective, water-repellent, resistant layer forms, which acts as a separating layer between the surrounding atmosphere and the surface on which separation layer adhering Collect foreign matter, this separating layer can be removed together with the foreign matter by washing with a weakly alkaline liquid which has no detectable damaging effect on the surface.

The solution or emulsion is preferably prepared in such a way that it also includes the spaces in the powdered pigment film which are formed by the destruction of the binding medium have been penetrated and, after evaporation of the continuous aqueous phase, as a binder for the loosened Pigment particles and restores the surface's specular reflectivity.

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The solution or emulsion preferably contains a natural one or synthetic wax or waxy8 material. she can also contain a mixture of two or more such waxes or wax-like substances. Sas film or coating-forming material, which * can be diluted indefinitely with water may be a polyacrylic compound or a polyvinyl compound, or a mixture of two or more of them Be connections. These compounds can also be used in combination with an appropriate natural or synthetic Wax or a mixture of two or more such waxes can be used. A suitable polyacrylic compound is a water-soluble acrylic polymer, which is produced by the Bo ?. Goodrich Company under the name "Carboset" in is brought to trade. Another suitable polyacrylic, compound is "Polyacrylamide P25O", put on the market by the Cyanamid Company. The polyacrylic compound is preferably a polyacrylamide with a molecular weight of 5 to 6 million.

A suitable Viny! Compound is a vinyl acetate, which has been copolymerized with a monomer ^containing> Carboxygruppeη, for example, the product that .in the Shawinigan Company under the designation. "C.5.V. 10. Celva" trade Another suitable vinyl compound is a polyvinyl acetate.

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Preferably the solution or emulsion contains the film or the compound forming the coating is a natural or synthetic wax or a mixture of such waxes α A suitable natural wax is, for example, carnauba wax, and suitable synthetic waxes are, for example Montan waxes. The wax must be a solution or an emulsion, but not a dispersion Dry slightly to form a glossy surface film. The guard must be dilutable with water and with the polymeric material be compatible.

One can use an ionic or nonionic wetting agent to the film- or over-forming solution or emulsion add or embed in this. You can add before during or after the formation of the solution or emulsion. Suitable nonionic wetting agents are polyoxyethylene alkyl ethers, a suitable simple ionic one The wetting agent is triethanolamine.

The preferred film or coating forming solution or Emulsion has the following composition

Film or coating binding 0 to 10 Wax or water-like material 0 to 45 Wetting agents 0 to 4th Dilution water Best BATH

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The preferred diluent is Waeeer, since it is generally inert to the surfaces treated with moisture .

Jivjar eats ^ e "1e any iSußammensetaung within the necessary attention-ehond angotfelwiien BgBeitreibung suitable aum SohUtaen of such ee described iotj however tine ¹ of about 2 6EW. ^ The existing Waehsea ud ο τ wafihßartigt'ii Materiala satisfactory.

or rilra iüusü auoreichond thick eein to form a niulitunterbroohcne Treiniochicht over the entire surface i: u. However, the coating should have the lowest possible thickness for economic OrUnden. A suitable back thickness with the materials mentioned here, for example, is misleading .

Mc WanliL'lüsung or emulsion so reaeptiert that they verifiliTοία to the u ^ achützende surface as part of a cleaning, wherein said aqueous detergent Gene-Löeungen be used as beochrieben _f here can be applied.

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The solution or emulsion should be applied to a clean surface are applied, eo. that no foreign substances which the Surface damage could be trapped on the surface beneath the film or coatings. Preferably the solution or emulsion is applied to the surface immediately after cleaning the surface in order to avoid that calibrated foreign matter before application of the solution or Set the emulsion on the surface. A two-way Cleaning method is one that uses foam, as described in British Patent Applications 27 292/61 and 13 575/61.

The solution or emulsion can be prepared by known methods will. They can be applied to the surface by dipping the object whose surface is to be protected in a bath, by brushing or spraying or pouring the solution or emulsion onto the

Surface. However, you have to be careful that you get the education avoids bubbles in the finished film or coating, as these bubbles can result in early breakage of the film or coating.

Otherwise film or coating, although water-repellent and acid-resistant, can be removed by any weakly basic one ii'liquid with which the coating material can be mixed, bel & pielaweise Jurch is a weak solution of ammonia.

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The following example illustrates the invention.

In a preferred method for treating the surface to be treated, the surface is first cleaned, preferably according to the Sohaumme.thode, which is used in the British Patent applications 27 292/61 and 31 575/61 is described. After using the foam-like detergent, the surface is washed thoroughly with water to remove detergent and Remove dirt. When this rinse is deemed complete, a coating is applied by spraying the dilute solution or emulsion of waxes or wax-like substances. A preferred method of application for this coating is carried out using one of the measuring and dosing devices, which are mentioned in the · «British Patent applications 27 292/61 and 31 575/61 are described in connection with a simple spray tube and nozzle. If desired, the solution or emulsion can be applied to a water-dampened surface.

example

The film or coating forming liquid has the following Composition:

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Polyaoryl material 0.5

(B.P. Goodrioh Company

Garboset)

Guard (laontan wax / carnaubn wax) 10.0

Non-ionic wetting agent 2.0

Cleaning water Hont

The synthetic montan wax melts and (1; üi carnauba wax at 95 ° C, adds the detergent, ßilii a! Heil des barrels β at 100 ° 0, cooks the uiucliuii /; then about 2 minutes and cools al). It is based a "Uearige liüßung of Acrylpolymerißatü acwie the reading of water» added and rtihrt the Minahung, gewührleieten to the homogeneity dex hergnritcillten preparation ^ u.

To cover Mese preparation one used on the üueeere Überfläolie ▼ plates which one has cleaned shortly -vorher ι as major. h dnc aprtihschaum- process of britioolien FateniaiimeldfMTgen 89 292/61 and 31 575/61. The riotieu consist of light alloys such as those used, for example, in the manufacture of aircraft or for non-load-bearing wounds from aluminum for buildings. They have an i) <;i;iil'irzug, lü for example a Parbonatrich, as one uses it } ■ · iifiihi '.'. t; UiiQi:. The protective ¹ .f? E11..tg HUi 'is sprayed over the entire surface of the outer surface of the

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Plates and läoat the coating auehärtenο After Bärtunf the plates have a hard, glossy reflective Aueienfläche that and ea "acid bestund strength is tiaeserabweisend" Then · Übet- will pull at AtraoophUrentemperatur durohgefUhrt ♦ The ijberjsug is intact and effective after 28 days in Atteeenatraoßpähre under wintry weather conditions. * ι

With a weakly alkaline cleaning solution, which is in this example from a 10b solution of STH1PALSNE J36Q, on the market ßnliroc] it from Sunbeam Anti-Corroeiir ·· Beetehtf, the cover eye or film is easily removable.

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Claims (1)

11693/62 Claims 1. A method for protecting surfaces against foreign substances, such as dirt or harmful components of the ambient air, characterized in that one is on the pure Surface an uninterrupted coating or PiIm an aqueous solution or emulsion one with water " miscible, acid-resistant, alkali-miscible compound and it allows sioh out the coating or film is given a glossy, reflective, water-repellent, Forms solid layer on the surface, which acts as a separating layer between the surrounding atmosphere and acts on the surface on which foreign matter adhering to it accumulates, the separating layer together with the foreign matter by washing with a weakly alkaline liquid, which does not get on the surface has a detectable, damaging effect, can be removed. 2. The method according to claim 1, characterized in that the solution or emulsion contains a natural wax, such as carnauba wax, or a synthetic wax, such as a montan wax, or a mixture of two or more such waxes » " ¹³ " 00980870488 15192? » 11693/62 3. The method according to claim 1 or 2, characterized gekennzeichpet, dans one αLo film-forming compound a polyalkylene compound or a polyvinyl acetate or other polyvinyl compounds or a mixture of two or more axes such compounds are used. 4. The method according to claim 1, 2 or 3 »characterized in that the polyacrylic compound is a water-soluble Material as defined in the description is used * 5. The method according to claim 1, 2 or 3 »characterized in that one nit another as a polyvinyl compound Monomerem, which contains one or more Oarboxygruppeη, copolymerized vinyl acetate is used. 6c Method according to one of Claims 1 to 5, characterized in that an ionic or nonionic wetting agent is incorporated into the solution or emulsion or add to it. ι 7. The method according to claim 6, characterized in that as ionic wetting agent triethanolamine and as a non-ionic wetting agent, polyoxyethylene alkyl arylather used. -H- 009808/0488 i ■ 1S19220 11691/62 8, method roof one of claims 1 to 7, characterized characterized in that the solution or emulsion 0 to 10 Ge *. # film or coating-forming compound, 0 to 45 Sew "$ Wax or waxy material, 0 to 4 $ Be ~ detergent that contains heat water old thinner. 9 «Method according to one of Claims 2 to 0, characterized in that # g ~ kenneeicUnet, daae the amount of polymer 2 (Iew "? i des Wax or waxy material. 10. The method according to any one of claims 1 bie 9i thereby ge ~ ketineelehnt that you can put the coating or film on the Upper cells by sowing, spraying, brushing or watering without the formation of bubbles io the applied coating film applies. 1T. A method according to claim 2 or claim 2 and one of the Claims 3 to 10, wherein the surface to be protected contains a powdery color pigment on a basis, characterized in that one has a solution or Emulsion used with a composition that penetrate the 2wiechrftume dea powdery Parbpigraents and after evaporation of the diluent act as a binding medium for the loosened Farurigmc-ntteilcheü » ksnn, which means that the mirror reflection of the BATH ORIGINAL 15 - 009808 / iH88 11693/62 surface is restored, and which with the adhering foreign substances by washing with a weak alkaline liquid can be removed. Ί2. Material for protection; of surfaces containing an aqueous solution or emulsion of a water-thinnable , thin, alkali-miscible, film-bonded compound, which on a superior οποί ilViChG due to evaporation of the aqueous phase, a clunzQnlv iυηη _t durable, solid layer V Π. <■■ <.,; π Jr: ..?} * », on vf-'lcbftx nirh ij-h & f tenrtc foreign matter of the · -! <;." · ■;>! ^v > , v ^; iji-r »] in; <] ibf ^: > i- iiiiifimelh, FeJah« üMtiaminen with dieeeii {■: -'- y.! 'i) / < ':.;:; (■ "Wn / - c π -η jni i · ..>!, * ... ■ >-; chwat:} i alkaline fluid · « ttr.rl '. ^ ι =. .-Vr-. · ■! ^; ^ .: h 12, · '<- r _f ..:;: ΐϊ γγΊ. «unt-rewarded, daee <"> Γιογ:?: ^ ο; · rj; .- :. fvii? ^v ! irln ■. t-Jü'li «ϊΐ- ^ ί? wax, like ri.fiubüwach · ₁ r»> U r <·, ι., Η ^ '. · η} ..>; \ ^: · ■ - ■ ^ hf- u ViHOiW ₁ as #ln ii'j aäor ^r: i} "lejfli / ■ ^;"> ■ ■■ ',, Kwei udor several 14 .. Material according to a) dt * r claim - 1 '' o <"u.» R 13, thereby _f ; i> k ( ^; 3iiir, <:: f chin "-, ^{/ tr} a« ß tso «la il.ij.il i2 <Miiitf« connection in <! «: r!» (- "ijuiifj ocli-r BiiiUJoäoJi ejim; ffu. ;; i? uryl. connection, ■ '■ !! •, • - ■ "^ ootfil (»! Er <»i? Ic undure j ^ o'i / viii ^ ivc.r tie or <■. ·>] ·.; .- ;? rino} j νου ί. · Λ * j ("the more ic; η n-craitjger V« rbin- ,.., -..... BAD ORIGINAL ., ^ 009 0 08/0488 11695/62 15. Material according to claim 14, characterized in that it is a polyacrylic compound as in the description contains defined water-soluble material. 16. Material according to claim 14, characterized in that it contains a vinyl acetate as a polyvinyl compound which ■ * is copolymerized with another monomer having one or two carboxyl groups. 17. Material according to any one of claims 12 to 16, characterized in that the solution or emulsion is a contains ionic or non-ionic wetting agent » 18. Material according to claim 17, characterized in that it is used as an ionic wetting agent and triethanolamine contains polyoxyethylene alkylaryl ethers as a nonionic wetting agent. 19 ° material according to any one of claims 12 to 18, characterized in that the solution or emulsion O bis 10 Gewo # of the film or coating forming compound, 0 to 45 wt. ^ Wax or hair-like material, 0 to 4 # wetting agent, the remainder contains water as a diluent. - 17 - 009808/0488 11693/62 Π 20. Material naoh one'der claims 13, Ui 17 to 19, characterized in that the amount of copolymer is 2% by weight of the Waohoeo or waxy material. 18 - 009808/0488