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WO2006077129A1 - Procede pour nettoyer des surfaces structurees - Google Patents

Procede pour nettoyer des surfaces structurees Download PDF

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Publication number
WO2006077129A1
WO2006077129A1 PCT/EP2006/000474 EP2006000474W WO2006077129A1 WO 2006077129 A1 WO2006077129 A1 WO 2006077129A1 EP 2006000474 W EP2006000474 W EP 2006000474W WO 2006077129 A1 WO2006077129 A1 WO 2006077129A1
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WO
WIPO (PCT)
Prior art keywords
range
compound
group
butyl
open
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PCT/EP2006/000474
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German (de)
English (en)
Inventor
Ulrich Steinbrenner
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BASF SE
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BASF SE
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/049—Cleaning or scouring pads; Wipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/405—Impregnation with polymerisable compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/42—Impregnation with macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers

Definitions

  • the present invention relates to a process for cleaning structured surfaces using aminoplast foams selected from
  • Or contains (b2) at least one solid at room temperature carboxyl-containing and / or carboxylic acid ester group-containing polymer (b-2) having a molecular weight M n in the range of 1,000 to 1,000,000 g / mol.
  • Foams especially so-called open-cell aminoplast foams, find applications in numerous applications.
  • open-cell aminoplast foams of synthetic materials have proven to be versatile. Examples include seat cushions, filter materials, air conditioning systems and automotive parts.
  • Structured surfaces require cleaning in many cases. This applies in particular to those structured surfaces which are either strongly exposed to corrosion and to surfaces which belong to tools or workpieces and are therefore heavily mechanically stressed or renewed by mechanical stress, for example by abrasion.
  • impurities such surfaces not only unsightly, but lose their function, especially if they belong to tools or workpieces. For example, tools such as grindstones can become clogged with abrasion or other contaminants and no longer have a grinding effect.
  • Files are also very easily put on with abrasion, and structuring is no longer available.
  • Cleaning sponges made of nonwovens, polyurethanes, polyesters, cellulose or artificial leather suffer in many cases strong mechanical abrasion, the abrasion adds the structuring.
  • the method defined at the outset is a method for cleaning structured surfaces.
  • Structured surfaces in the sense of the present invention can have elevations and / or depressions at regular or irregular intervals, each of which may have the same or preferably different shape.
  • the said elevations and / or depressions may have any shape, preferred are polygonal or round elevations, grooves, ridges, grooves, pores, teeth, teeth, cutting.
  • said protrusions may have an average spacing in the range of 100 nm to 1 cm, preferably 1 ⁇ m to 1 mm, and an average height or depth in the range of 100 nm to 5 mm, preferably 1 ⁇ m to 5 mm.
  • the distance and the height or depth of said elevations or depressions can be determined by methods known per se, for example by microscopy, laser reflectometry and in particular Nadelabtastvon. The distance of said elevations or depressions is determined, for example, by determining the average distance of the mean height.
  • a local maximum (maximum 1) is selected on the structured surface to be cleaned. Starting from maximum 1 as the center, one moves in concentric circles of maximum 1 and detects further local maxima, for example maximum 2.
  • the idea is to cut the structured surface to be cleaned by planes a, which contain maximum 1 and maximum 2 and approximately perpendicular to a compensation surface with respect to the structured surface to be cleaned. The latter is defined by the fact that the respective plane a leads to further planes b, the maxima far removed relative to the distance between maximum 1 and maximum 2 (about 100 times the distance of the respective maxima).
  • the cleansing structured surface include, approximately perpendicular.
  • the point of contact is the minimum (1,2) and the mean height h (1,2) of the maxima 1 and 2 is the distance between p (1,2) and g (1, 2) determined by the classical methods of Euclidean geometry ,
  • maximum 1 is then a true maximum if there is at least one further maximum 2, so that h (1, 2)> 0.2 ⁇ d (1, 2), preferably h (1, 2)> 0, 33 x - d (1, 2), more preferably h (1, 2)> 0.5 xd (1, 2).
  • h (1, 2)> 5 nm must apply in order to exclude atomic structures safely.
  • the elevations may consist of the same material as the rest of the surface.
  • the elevations of a different material than the rest of the surface for example, sandpaper and sandpaper called.
  • structured surfaces are at least partially, preferably more than 50% of metals or alloys, such as iron, nickel, chromium, aluminum, steel such as.
  • metals or alloys such as iron, nickel, chromium, aluminum, steel such as.
  • carbon steel but also Cr-V steel, Cr-V-Mo steel or Co-steel, copper, brass, tungsten carbide, cobalt, tungsten, titanium, zirconium.
  • structured surfaces consist of oxide or ceramic materials, such as, for example, silicon dioxide, silicon carbide, silicon nitride, boron carbide, boron nitride, aluminum oxide, magnesium oxide, titanium oxide, zirconium oxide, mixed silicates, spinels, diamonds, each in crystallized form , in amorphous form or as glass.
  • Special design forms of oxidic materials can be, for example, structured stones, concrete, ceramics, clay, porcelain, grinding, cutting and grinding disks and grinding stones.
  • structured surfaces consist of organic polymers, for example thermosets or thermoplastics.
  • organic polymers for example thermosets or thermoplastics.
  • thermosets or thermoplastics examples which may be mentioned are polystyrene, polypropylene, polyesters, polyamide, polyoxymethylene (“POM”), polyethylene, polyacrylonitrile, melamine, phenol-formaldehyde condensates, polymethacrylate and copolymers such as, for example, acrylonitrile-butadiene-styrene.
  • Surfaces can be provided by structuring methods known per se.
  • the application such as, for example, sticking or lamination of structured films to surfaces which are not structured as described above, may be mentioned by way of example.
  • the application of particles for example having an average diameter (weight average) in the range from 100 nm to 5 mm, to a surface which is not structured as described above, and optionally subsequent attachment, for example by gluing, solid-state sintering, melting on.
  • structured surfaces are those surfaces which have been patterned by sand or shot peening, embossing, milling, casting, cutting, rolling or lithographic patterning.
  • the surfaces to be cleaned are surfaces of keys, threads such as threads of screws, furthermore boards, collectors of electric motors, switch contacts, battery poles or sheets prepared for painting.
  • structured surfaces are cleaned of impurities containing at least one substance which is selected
  • Fats, oils, waxes for example polyethylene waxes, paraffin waxes, paraffin oils, ester oils, native oils and fats, greases, bearing fats, sturgeon fats, montan waxes,
  • Metal salts of anionic surfactants such as lime soap, biofilms, for example mold or pseudomonate biofilms,
  • Polymers for example paint spray, polyurethane foam, silicones (polysiloxanes), metal oxides, for example copper, lead or nickel oxide or rust formed by corrosion, for example, or rust particles or flash rust, in particular iron oxides, metal hydroxides and metal carbonates, which may be neutral, acidic or basic.
  • NEN in particular iron, copper, nickel hydroxide, aluminum hydroxide, magnesium hydroxide, MgCO 3 , basic CuCO 3 , basic MgCO 3 , CaCO 3 , wherein metal oxides, metal carbonates and metal hydroxides formed by corrosion of the base metal of the structured surface, for example a tool or workpiece or but may have been deposited secondarily,
  • Residues of lubricants such as partially coked or partially or completely gummy lubricants, and broken emulsions.
  • resinated native ester oils to z By way of example may be mentioned: resinated native ester oils to z. Chain saws or coked oils on polyester filament fiber spinning hotplates,
  • Impurities can be distributed evenly or unevenly on structured surfaces to be cleaned, for example in the form of stains, edges, spatters or as a film.
  • one or more pieces of aminoplast foam are simply or preferably repeatedly passed over the structured surface to be cleaned. You can choose the contact pressure arbitrary. One or more pieces of aminoplastic foam can be manually or mechanically passed over the structured surface to be cleaned.
  • one or more pieces of aminoplast foam in a dry form or in a form moistened with, for example, water.
  • one or more pieces of aminoplast foam for example in the form of rotating pin-shaped, disk-shaped or cone-shaped parts, can lead over the structured surface to be cleaned.
  • At least one aminoplast foam is used.
  • Comonomer contains polymerized single-polymer, or (b2) with at least one solid at room temperature carboxyl groups and / or carboxylic acid ester group-containing polymer (b-2) having a molecular weight M n in the range of 1,000 to 1,000,000 g / mol.
  • At least one compound (b-1) is preferably a compound which was not used in the production of aminoplast foam (b).
  • open-cell aminoplast foams used according to the invention are those based on synthetic organic foam, for example aminoplast foams, for example urea-formaldehyde resins, in particular aminoplast-formaldehyde resins based on aminoplast, in particular melamine-formulated aldehyde resins, wherein aminoplast foams based on melamine-formaldehyde resins are also referred to as melamine foams.
  • aminoplast foams for example urea-formaldehyde resins, in particular aminoplast-formaldehyde resins based on aminoplast, in particular melamine-formulated aldehyde resins, wherein aminoplast foams based on melamine-formaldehyde resins are also referred to as melamine foams.
  • unmodified open-cell aminoplast foams (a) used for carrying out the process according to the invention are generally also referred to as unmodified aminoplast foams (a) in the context of the present invention.
  • the non-modified open-celled aminoplast foams (a) used for carrying out the inventive cleaning process are described in more detail below.
  • open-cell aminoplast foams (a) in particular aminoplast foams in which at least 50% of all lamellae are open, are preferably 60 to 100% and particularly preferably 65 to 99.9%, determined according to DIN ISO 4590th
  • Aminoplast foams (a) used according to the invention in one embodiment of the present invention are hard aminoplast foams which, in the context of the present invention, are aminoplast foams which have a compressive strength of 1 kPa or more at a compression of 40%, determined in accordance with DIN 53577.
  • Aminoplast foams (a) used according to the invention have a density in the range of 5 to 500 kg / m 3 , preferably 6 to 200 kg / m 3 and particularly preferably in the range of 7 to 100 kg / m 3 .
  • Aminoplast foams (a) used according to the invention may have an average pore diameter (number average) in the range from 1 .mu.m to 1 mm, preferably from 50 to 500 .mu.m, determined by evaluating microscopic images of sections.
  • aminoplast foams (a) used according to the invention may have a maximum of 20, preferably a maximum of 15, and particularly preferably a maximum of 10 pores per m 2 , which have a diameter in the range of up to 20 ⁇ m. The remaining pores usually have a smaller diameter.
  • aminoplast foams (a) used according to the invention have a BET surface area in the range from 0.1 to 50 m 2 / g, preferably 0.5 to 20 m 2 / g, determined to DIN 66131.
  • aminoplast foams (a) used according to the invention have a sound absorption level of more than 50%, measured according to DIN 52215 at a frequency of 2000 Hz and a layer thickness of the relevant foam (a) of 50 mm.
  • open-cell aminoplast foams (a) used according to the invention have a sound absorption factor of more than 0.5, measured according to DIN 52212 at a frequency of 2000 Hz and a layer thickness of the relevant foam (a) of 40 mm.
  • Open-celled aminoplast foams (a) used as starting material may have any desired geometric shapes, for example plates, spheres, cylinders, powders, cubes, flakes, cuboids, saddles, rods or round, rectangular or square columns and preferably discs, conical or pin-shaped protrusions. taltungsformen.
  • the size dimensions of aminoplast foams (a) used as starting material are not critical if they can be mechanically mechanically compressed, cut, sawn or punched. Preference is given to plates, cylinders, cubes, cuboids or rectangular columns, which can be mechanically compressed in conventional devices, and particularly preferably discs, cone-shaped or pin-shaped embodiments.
  • melamine foams (a) are known as such. Their preparation succeeds, for example, by foaming of
  • a melamine-formaldehyde precondensate which, in addition to formaldehyde, may comprise further carbonyl compounds such as aldehydes in the presence of ii) one or more blowing agents, iii) optionally one or more emulsifiers, iv) one or more hardeners.
  • Melamine-formaldehyde precondensates i) may be unmodified, but they may also be modified, for example, up to 20 mol% of the melamine may be replaced by other known durolasts, for example alkyl-substituted melamine, urea, urethane, carboxylic acid amides, dicyandiamide, guanidine , Sulfurylamide, sulfonic acid amides, aliphatic amines, phenol and phenol derivatives.
  • durolasts for example alkyl-substituted melamine, urea, urethane, carboxylic acid amides, dicyandiamide, guanidine , Sulfurylamide, sulfonic acid amides, aliphatic amines, phenol and phenol derivatives.
  • modified melamine-formaldehyde precondensates may contain, for example, acetaldehyde, trimethylolacetaldehy, acrolein, furofol, glyoxal, phthalaldehyde and terephthalaldehyde in condensed form.
  • Suitable blowing agents ii) are: water, inert gases, in particular carbon dioxide, and so-called physical blowing agents.
  • Physical blowing agents are compounds which are inert to the starting components, which are preferably liquid at room temperature and vaporize under the conditions of aminoplast formation. Preferably, the boiling point of these compounds is preferably below 110 0 C, in particular below 80 ° C.
  • the physical blowing agents also include inert gases which are introduced into or dissolved in the starting components i) and ii), for example carbon dioxide, nitrogen or noble gases.
  • Suitable liquid at room temperature compounds are selected from the group containing alkanes and / or cycloalkanes having at least 4 carbon atoms, dialkyl ethers, esters, ketones, acetals, fluoroalkanes having 1 to 8 carbon atoms, and tetraalkylsilanes having 1 to 3 carbon atoms in the alkyl chain, especially tetra - methyl silane.
  • Examples which may be mentioned are: propane, n-butane, iso- and cyclobutane, n-, iso- and cyclopentane, cyclohexane, dimethyl ether, methyl ethyl ether, methyl tert-butyl ether, methyl formate, acetone and fluorinated alkanes which are in the troposphere and are therefore harmless to the ozone layer, such as trifluoromethane, difluoromethane, 1,1,1,3,3-pentafluorobutane, 1,1,1,3,3-pentafluoropropane, 1,1,1,2-tetrafluoropropane, fluoroethane, 1, 1, 1-trifluoro-2,2,2-trichloroethane, 1, 1, 2-trifluoro-1, 2,2-trichloroethane, difluoroethanes and heptafluoropropane.
  • the said physical blowing agents can be used alone or in any
  • emulsifiers iii) one can use conventional non-ionic, anionic, cationic or betainic surfactants, in particular C 12 -C 3 O-alkyl sulfonates, C 12 preferably - C 18 alkyl sulfonates and poly-ethoxylated Cio-C 2 o-alkyl alcohols, in particular the Formula R 16 is -O (CH 2 -CH 2 -O) X -H, wherein R 16 is selected from C 10 -C 20 alkyl and x may, for example, be an integer in the range of 5 to 100.
  • Suitable hardeners iv) are, in particular, acidic compounds, such as, for example, inorganic Br ⁇ nsted acids, e.g. Sulfuric acid or phosphoric acid, organic Br ⁇ nsted acids such as acetic acid or formic acid, Lewis acids and so-called latent acids.
  • acidic compounds such as, for example, inorganic Br ⁇ nsted acids, e.g. Sulfuric acid or phosphoric acid, organic Br ⁇ nsted acids such as acetic acid or formic acid, Lewis acids and so-called latent acids.
  • aminoplast foams used in the present invention may contain (a) additives and adjuvants conventional in foam chemistry, for example, antioxidants, flame retardants, fillers, colorants such as pigments or dyes, and biocides, for example
  • modified aminoplast foams (b) To carry out the cleaning process according to the invention, it is possible to use either unmodified aminoplast foams (a) described above or, preferably, so-called modified aminoplast foams (b), the preparation of which is described below.
  • modified aminoplast foams (b) To produce modified aminoplast foams (b), one starts, for example, from one or more unmodified aminoplast foams (a) which can be prepared as described above. Aminoplast foam (a) can be treated with prior to carrying out the cleaning process according to the invention
  • (b1) at least one compound having at least one semiaminal or aminal group per molecule or from at least one copolymer which contains in copolymerized form at least one comonomer or n-butyl acrylate containing OH groups or containing ⁇ -dicarbonyl groups or epoxide groups, or
  • aqueous formulations may be aqueous formulation for aqueous solutions, emulsions or dispersions.
  • Compound (b-1) can be obtained, for example, by condensation of at least one nitrogen-containing compound (B1) and at least one carbonyl compound (B2) and optionally further compounds (B3) and, if appropriate, further reactions after the condensation.
  • nitrogen-containing compounds (B1) are urea, N, N'-dimethylurea, triazone, tetrahydropyrimidinones, imidazolinones, tetrahydro-4H-1, 3,5-oxadiazin-4-ones, alkylcarbamates, methoxyethyl carbamates and (meth) acrylic acid methylolamide.
  • Ketones especially di- (Ci-C 10 alkyl) ketones, preferably mono-, di- and polyaldehydes, in particular C r C 10 -Alkylmonoaldehyde such as acetaldehyde or propionaldehyde and most preferably formaldehyde, dialdehydes such as glyoxal or phthalaldehyde such as for example, 1, 2-phthaldialdehyde, butanedial, glutaric dialdehyde and hexane-1, 6-dial.
  • C r C 10 -Almonoaldehyde such as acetaldehyde or propionaldehyde and most preferably formaldehyde
  • dialdehydes such as glyoxal or phthalaldehyde such as for example, 1, 2-phthaldialdehyde, butanedial, glutaric dialdehyde and hexane-1, 6-dial.
  • Examples of particularly preferred further compounds (B3) are monohydric or polyhydric alcohols, for example C r C 10 -alkanols, in particular methanol, ethanol, n-propanol and n-butanol, furthermore ethylene glycol, propylene glycol, butylene glycol, 1,4-butanediol, 1, 6-hexanediol, 1,12-dodecanediol, glycerol, diethylene glycol, dipropylene glycol, polyethylene glycols having on average up to 200, preferably from 3 to 20 ethylene oxide units per molecule (number average), polypropylene glycols having an average of up to 200 , preferably from 3 to 20 propylene oxide units per molecule (number average), polytetrahydrofuran with an average of up to 200, preferably from 3 to 20 1, 4-butanediol units per molecule (number average) as well as simply CrCio-alkyl-capped mono ,
  • compound (b-1) can be prepared from at least one nitrogen-containing compound (B1), at least two carbonyl compounds (B2) and, for example, up to 3 different further compounds
  • Particularly preferred examples of compounds (b-1) are those of the general one
  • R 1 , R 2 are different or preferably identical and selected from hydrogen
  • C 1 -C 12 -alkyl branched or unbranched, selected from among methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isobutyl, Pentyl, sec-pentyl, neo-pentyl, 1,2-dimethylpropyl, iso-amyl, n-hexyl, iso-
  • x is the same or different and an integer selected from zero and one, wherein in formula Ia at least one x is selected equal to one; in formula I b both x can be chosen to be zero,
  • n is an integer in the range of 1 to 20,
  • R 3 , R 4 are different or preferably the same and selected from hydrogen
  • C 1 -C 2 -alkyl branched or unbranched, selected from among methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec Pentyl, neo-pentyl, 1,2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl, n-heptyl, iso-heptyl, n-octyl, n-nonyl, n Decyl and n-dodecyl; prefers
  • C 1 -C 6 -alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neo Pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl, more preferably C 1 -C 4 -AIRyI such as methyl, ethyl, n-propyl, iso-propyl, n-butyl iso-butyl, sec-butyl and tert-butyl, or together are C 2 -C 4 -alkylene such as -CH 2 -CH 2 -, - (CH 2 ) 3 - or
  • R 5 is identical or different and selected from C 1 -C 4 -Alk ⁇ such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl
  • R 6 is selected from hydrogen and C 1 -C 12 -alkyl, preferably linear C 1 -C 12 -alkyl, selected from methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl and n-dodecyl; preferably linear C r C 6 alkyl such as methyl, ethyl, n-propyl, n-butyl, n-pentyl, iso-pentyl, n-hexyl, particularly preferred
  • C 1 -C 4 -alkyl such as methyl, ethyl, n-propyl and n-butyl, with hydrogen and methyl being very particularly preferred
  • R 7 different or preferably identical and selected from C r Ci 2 alkyl, preferably linear CrCl 2 alkyl selected from methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n Octyl, n-nonyl, n-decyl and n-dodecyl; preferably linear Ci-C 6 alkyl such as methyl, ethyl, n-propyl, n-butyl, n-pentyl, iso-pentyl, n-hexyl, especially preferably C r C 4 alkyl such as methyl, ethyl, n-propyl, and n-butyl,
  • Preferred homo- and copolymers of compounds of the general formula II can have, for example, molecular weights M w in the range from 10,000 to 250,000 g / mol, preferably from 20,000 to 240,000 g / mol.
  • copolymers of one or more compounds of the general formula II in particular copolymers of one or more are used
  • R 8 is selected from C 1 -C 12 -alkyl, preferably linear C 1 -C 12 -alkyl 1 selected from methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, n-heptyl, n Octyl, n-nonyl, n-decyl and n-dodecyl; CRCE preferably linear alkyl such as methyl, ethyl, n-propyl, n-butyl, n-pentyl, iso-pentyl, n-hexyl, especially preferably C r C 4 alkyl such as methyl, ethyl, n-propyl and n-butyl .
  • X selected from OH 1 glycidyl, 2-hydroxyethyl, 3-hydroxypropyl,
  • R 9 is selected from C 1 -C 12 -alkyl, branched or unbranched, selected from among methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl iso-pentyl, sec-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n ⁇ hexyl, iso-hexyl, sec-hexyl, n-heptyl, iso-heptyl, n-octyl, n Nonyl, n-decyl and n-dodecyl, preferably C 1 -C 6 -alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl,
  • those copolymers which contain no copolymerized ethylene as comonomer are preferred.
  • those copolymers are selected as (b-1) which contain in copolymerized form: 0 to 15 wt .-%, preferably 0.5 to 10 wt .-% of at least one comonomer of the general formula II or III, 0 to 80 wt .-% of n-butyl acrylate,
  • At least 80 wt .-% at least one weathered (meth) acrylic acid-CrCi O -Alkylester, - 0 to 20 wt .-%, preferably 0.1 to 15 wt .-% of one or more other comonomers such as (meth ) acrylic acid, vinyl aromatic compounds such as styrene, (meth) acrylonitrile and (meth) acrylamide.
  • comonomers such as (meth ) acrylic acid, vinyl aromatic compounds such as styrene, (meth) acrylonitrile and (meth) acrylamide.
  • copolymeric compounds of the general formula II or III preference is given to using random copolymers which can be prepared by methods known per se, for example by emulsion polymerization.
  • aqueous formulation used to modify aminoplast foam (b) ranges from 1 to 60 wt%, preferably 10 to 40 wt% of compound (b-1).
  • Contacting may be accomplished, for example, by dipping aminoplast foam (b) in aqueous formulation of compound (b-1), by impregnating aminoplast foam (b) with aqueous formulation of compound (b-1), by impregnating unmodified foam (b). with aqueous formulation of compound (b-1), by incomplete or preferably complete spraying of aminoplast foam (b) with aqueous formulation of compound (b-1), or by calendering aqueous formulation of compound (b-1) onto aminoplast foam (b).
  • the procedure is to rakelt aqueous formulation of compound (b-1) on Aminoplastschaumstoff (b). After soaking or knife-coating or calendering or spraying, for uniform distribution of the formulation and adjustment of the desired concentration between at least two, for example, rotating rolls can be squeezed off.
  • aminoplast foam (b) and aqueous formulation of compound (b-1) may be allowed to act upon each other after contacting, for example, over a period of time in the range of 0.1 second to 24 hours, preferably 0.5 Seconds to 10 hours and more preferably 1 second to 6 hours.
  • aminoplast foam (b) and an aqueous formulation of compound (b-1) at temperatures in the range of from 0 C to 25O 0 C 1 is preferably 5 ° C to 190 0 C and more preferably 10 to 18O 0 C.
  • aminoplast foam (b) and an aqueous formulation of compound (b-1) initially at temperatures ranging from 0 ° C to 50 0 C and then change the temperature, for example by heating to temperatures ranging from 60 ° C to 25O 0 C 1 preferably from 65 ° C to 180 ° C.
  • aminoplast foam (b) and an aqueous formulation of compound (b-1) initially at temperatures in the range from 0 0 C to 12O 0 C and then change the temperature, for example by heating to temperatures in the range of 30 ° C to 250 0 C, preferably from 125 ° C to 200 ° C.
  • the amounts of unmodified foam (a) and aqueous formulation of compound (b-1) are chosen so that the product according to the invention has a significantly higher density than the relevant unmodified foam (a).
  • one operates at atmospheric pressure.
  • working under elevated pressure for example at pressures in the range of 1, 1 bar to 10 bar.
  • the reaction is carried out under reduced pressure, for example at pressures in the range from 0.1 mbar to 900 mbar, preferably up to 100 mbar.
  • aminoplast foam (b) is contacted with aqueous formulation of compound (b-1) so that compound (b-1) is distributed as uniformly as possible in all dimensions over aminoplast foam (b).
  • Suitable methods are methods with a high application efficiency. Examples include: complete soaking, dipping, flooding, drumming, spraying, e.g. Compressed air spraying, airless spraying, further high-speed sputtering, coating, knife coating, calendering, brushing, rolling, wiping, rolling, spinning, centrifuging.
  • aminoplast foam (b) is contacted with aqueous formulation of compound (b-1) to effect uneven distribution of aqueous formulation of compound (b-1) onto aminoplast foam (b).
  • aqueous formulation of compound (b-1) unevenly and then leave it to act.
  • aminoplast foam (b) is impregnated completely with aqueous formulation of compound (b-1), and the uppermost layer is rinsed clean again with, for example, water. Then let it act. As a result, Aminoplastschaumstoff coated (b) in the core; the outer surface remains uncoated.
  • aminoplast foam (b) When aminoplast foam (b) is contacted with aqueous formulation of compound (b-1) so as to cause uneven distribution of aqueous formulation of compound (b-1) on aminoplast foam (b), it is possible to contact by, for example, co-acting a period of 2 minutes or more that not only the outermost layer of aminoplast foam (b) is contacted with aqueous formulation of compound (b-1).
  • modified foam may have over its Cross section have uneven mechanical properties.
  • the formation of an uneven distribution of aqueous formulation of compound (b-1) can be reduced by carrying out a vacuum suction on at least one perforated roller, preferably at least two perforated rollers or at least one perforated plate.
  • a defined liquor pickup is set, for example in the range from 20 to 800% by weight, based on the weight of the aminoplast foam (b).
  • the concentration of compound (b-1) in the formulation is between 1 and 99% by weight.
  • following the contacting and optionally rinsing it is possible to dry, for example mechanically by e.g. B. wringing or calendering, in particular by squeezing by two rollers, or thermally, for example in microwave ovens, hot air blowers or in drying cabinets, especially vacuum ovens, where you can operate drying cabinets, for example, at temperatures in the range of 30 to 150 0 C. Under vacuum can be understood in connection with vacuum drying a pressure, for example in the range of 0.1 to 850 mbar.
  • the time spent on drying steps is by definition not exposure time.
  • thermal drying can be accomplished by heating to temperatures ranging from 20 0 C to 150 ° C, for example over a period of 10 seconds to 20 hours.
  • aminoplast foam (b) In addition to the aqueous formulation of compound (b-1), according to the invention, it is possible to contact aminoplast foam (b) with at least one catalyst (c-1).
  • catalyst (c-1) Suitable examples are metal and ammonium salts and inorganic or organic acids.
  • Suitable metal salts are, for example, metal halides, metal sulfates, metal nitrates, metal tetrafluoroborates, metal phosphates or mixtures thereof.
  • Examples are magnesium chloride, magnesium sulfate, zinc chloride, lithium chloride, lithium bromide, boron trifluoride, aluminum chloride, aluminum sulfate, alums such as KAl (SO 4 ) 2 -12H 2 O, zinc nitrate, sodium tetrafluoroborate and mixtures of the metal salts described above.
  • Ammonium salts suitable as catalyst (c-1) are ammonium salts from the group of ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium oxalate, diammonium phosphate or mixtures of the ammonium salts described above.
  • suitable inorganic and organic acids are maleic acid, formic acid, citric acid, tartaric acid, oxalic acid, p-toluenesulfonic acid, hydrochloric acid, sulfuric acid, boric acid and mixtures thereof.
  • catalyst (c-1) are Bronsted acid catalysts, for example ZnCl 2 , Zn (NO 3 ) 2 , in each case also in the form of their hydrates, NH 4 Cl, MgSO 4 , Al 2 (SO 4 ) 3 l in each case also in the form of their hydrates, and very particularly preferably MgCl 2 , in particular in the form of its hexahydrate.
  • Bronsted acid catalysts for example ZnCl 2 , Zn (NO 3 ) 2 , in each case also in the form of their hydrates, NH 4 Cl, MgSO 4 , Al 2 (SO 4 ) 3 l in each case also in the form of their hydrates, and very particularly preferably MgCl 2 , in particular in the form of its hexahydrate.
  • magnesium chloride zinc chloride, magnesium sulfate, aluminum sulfate are used. Particularly preferred is magnesium chloride.
  • aminoplast foam (b) is contacted with aqueous solution of compound (b-1) and optionally catalyst (c-1) at a pH in the range of 3.0 to 7.5, wherein the desired pH optionally can be adjusted by adding acid, alkali or a buffer.
  • a buffer is preferred.
  • At least one aminoplast foam (b) can be contacted not only with aqueous formulation of compound (b-1) and optionally catalyst (c-1) but also with at least one additive (d-1) selected from
  • Biocides such as silver particles or monomeric or polymeric organic biocides such as phenoxyethanol, phenoxypropanol, glyoxal, thiadiazines, 2,4-dichlorobenzyl alcohols and preferably isothiazolone derivatives such as MIT (2-methyl-3 (2H) -isothiazolone) , CMIT (5-chloro-2-methyl-3 (2H) -isothiazolone), CIT (5-chloro-3 (2H) -isothiazolone), BIT (1,2-benzisothiazol-3 (2H) -one), further Copolymers of N, N-di-C 1 -C 10 -alkyl- ⁇ -amino-C 2 -C 4 -alkyl (meth) acrylate, in particular copolymers of ethylene with N, N-di-methyl-2-aminoethyl (meth ) acrylate, one or more surfactants which may be anionic, cationic or
  • Colorants such as dyes or pigments, fragrances such as perfume,
  • Hydrophobic or Oleophobiermittel for example, fluorocarbon resins or fluorocarbon waxes, odor traps, such as cyclodextrins, and
  • Microcapsules filled with at least one active substance such as care oil, one or more biocides, perfume, odor trap, microcapsules for the purposes of the present invention for example, spherical hollow particles inside with an average outer diameter in the range of 1 to 100 microns, for example can be constructed of melamine-formaldehyde resin or polymethyl methacrylate. This can be done, for example, by contacting at least one aminoplastic foam (b) in different operations or preferably simultaneously with aqueous formulation of compound (b-1) and with at least one additive (d-1).
  • one or more additives (d-1) can be added to aqueous formulation of compound (b-1), for example in proportions of 0 to a total of 50% by weight, based on (b-1), preferably 0.001 to 30 Wt .-%, particularly preferably 0.01 to 25 wt .-%, most preferably 0.1 to 20 wt .-%.
  • aqueous formulation of compound (b-1) and, if appropriate, catalyst (c-1) and optionally at least one additive (d-1) can be carried out batchwise or preferably continuously, batchwise, for example by pressing or plates, continuously, for example by means of rollers or calenders. If one wishes to calender, one can perform one or more calendering passes, for example one to twenty calendering passes, preferred are five to ten calendering passes.
  • calendering is carried out before drying.
  • the procedure is followed by first drying after contacting and reacting with aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) , then moistened with water and then mechanically compressed, for example calendered.
  • the procedure is followed by first drying after contacting and reacting with aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1), waived moistening and then compressed mechanically, for example calendered.
  • mechanical compression after contacting and subjecting aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) the rigid hard unmodified aminoplast foams (a) soft and flexible.
  • aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) it is possible to thermally fix onto aminoplast foam (b) , before or after mechanical compression or between two mechanical compression steps.
  • Suitable apparatuses are, for example, microwave ovens, plate pressing plants, drying ovens heated electrically or with gas flames, heated rolling mills or continuously operated drying devices using hot air blowers.
  • thermoly fix after contact and exposure to aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) on aminoplastic foam (b), after or preferably before mechanical compression or between two mechanical compression steps.
  • aqueous formulation of compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) on aminoplastic foam (b) after or preferably before mechanical compression or between two mechanical compression steps.
  • Suitable apparatus are, for example, drying cabinets.
  • the mechanical compression and the thermal fixing are combined, for example by passing foam one or more times over hot rolls or calenders after being soaked in and optionally drying, or pressing it one or more times between hot plates.
  • hot temperatures are to be understood as meaning temperatures in the range from 100 to 250 ° C., preferably from 120 to 200 ° C.
  • aminoplast foams have a density in the range of 5 to 500 kg / m 3 , preferably 6 to 200 kg / m 3, and more preferably in the range of 7 to 100 kg / m 3 .
  • the density of the modified aminoplast foam as described above is influenced on the one hand by the degree of coating with compound (b-1) and optionally catalyst (c-1) and optionally at least one additive (d-1) and on the other hand by the degree of compaction of the starting material. By suitable choice of occupancy and degree of compaction, density and hardness or flexibility can be set as desired.
  • open-celled aminoplast foams (b) which have been treated with at least one room temperature solid carboxyl group-containing and / or carboxylic acid ester group-containing polymer (b-2) having a molecular weight M n in the range from 1,000 to 1,000,000 g / mol.
  • carboxyl-containing and / or carboxylic acid ester group-containing polymers (b-2) are in one embodiment of the present invention, such polymers are understood to have a melting point of about 25 0 C, preferably above 5O 0 C, determined by DSC ,
  • carboxyl-containing and / or carboxylic acid ester group-containing and / or carboxylic acid ester group-containing polymers may be homopolymers or copolymers of ethylenically unsaturated mono- or dicarboxylic acids.
  • solid carboxyl group-containing and / or carboxylic acid ester group-containing polymers (b-2) are organic polymers which is made of the material of the open-cell foam (a), different are.
  • At least one carboxyl group-containing and / or carboxylic ester group-containing polymer (b-2) at room temperature is a copolymer of at least one ethylenically unsaturated carboxylic acid selected from ethylenically unsaturated mono- and dicarboxylic acids, and in particular a copolymer of (meth) acrylic acid.
  • At least one carboxyl group-containing and / or carboxylic acid ester group-containing polymer (b-2) which is solid at room temperature is a copolymer obtainable by copolymerization of
  • At least one ethylenically unsaturated carboxylic acid is preferably a carboxylic acid of the general formula III
  • R 10 is selected from hydrogen and
  • C 1 -C 10 -alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neo -pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso ⁇ hexyl, sec-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl; particularly preferably C r C 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso- butyl, sec-butyl and tert-butyl;
  • R 11 is selected from hydrogen
  • C 1 -C 10 -alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec-pentyl, neo Pentyl, 1,2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl; particularly preferably C 1 -C 4 -alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl and tert-butyl;
  • R 11 is hydrogen and R 10 is hydrogen or methyl.
  • ethylene carboxylate used at room temperature as solid carboxyl groups-containing and / or carboxylic ester group-containing polymer (b-2) can be up to 40% by weight, preferably up to 35% by weight, based in each case on the sum of ethylene ( C) and copolymerized or copolymerized ethylenically unsaturated ethylenically unsaturated carboxylic acid (s) (D), one or more further comonomers (E) in copolymerized form, for example
  • R 12 is selected from C r C 10 alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-
  • R 13 is selected from hydrogen, C 1 -C 10 -alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, iso -Pentyl, sec-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso -hexyl, sec-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl ; particularly preferably C r C 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso- butyl, sec-butyl and tert-butyl;
  • R 14 is selected from hydrogen
  • C 1 -C 10 -alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, sec.
  • R 14 is hydrogen and R 13 is hydrogen or methyl.
  • R 14 is very particularly preferably hydrogen and R 13 is hydrogen or methyl and R 12 is selected from methyl, ethyl, n-butyl and 2-ethylhexyl.
  • the ethylene copolymers described above can advantageously be prepared by free-radical copolymerization known per se under high pressure conditions, for example in stirred high-pressure autoclaves or in high-pressure tubular reactors. Production in stirred high pressure autoclave is preferred.
  • Stirred high-pressure autoclaves are known per se, a description can be found in Ullmann's Encyclopedia of Indust ⁇ al Chemistry, 5th edition, keywords: Waxes, Vol. A 28, p. 146 ff., Verlag Chemie Weinheim, Basel, Cambridge, New York, Tokyo, 1996. With them predominantly the ratio length / diameter at intervals of 5: 1 to 30: 1, preferably 10: 1 to 20: 1 behaves.
  • Suitable pressure conditions for the copolymerization under high pressure conditions are 500 to 4000 bar, preferably 1500 to 2500 bar.
  • the reaction temperatures are in the range from 170 to 300 ° C., preferably in the range from 200 to 280 ° C.
  • Modified aminoplast foams preferably contain in the range from 0.1 to 80 wt .-%, preferably 2 to 60 wt .-%, particularly preferably 5 to 50 wt .-%, based on the weight of the corresponding aminoplast foam (b), on Solid from (b-1) or (b-2).
  • the purification process according to the invention is carried out in the presence of at least one additive selected from organic solvents, aqueous solutions of at least one surface-active substance, salt solutions, aqueous acids or alkalis, preferably at least 5% by weight aqueous Acid or alkali.
  • concentration in accordance with the invention used as an additive aqueous acids and alkalis is preferably at most 50 wt .-%, if modified aminoplast foams are used.
  • acids examples include phosphoric acid, sulfuric acid, acetic acid, methanesulfonic acid, toluenesulfonic acid, acetic acid, formic acid, citric acid, propionic acid, oxalic acid, tartaric acid and nitric acid.
  • Acid phosphoric esters of CrC 10 -alkanols are also suitable acids.
  • Examples of particularly preferred alkalis are caustic solutions such as caustic soda and caustic soda.
  • organic solvents examples include turpentine, paraffinic, isoparaffinic and naphthenic hydrocarbons (for example "mineral oil”), aromatics such as, for example, toluene, ethylbenzene or xylene, furthermore alkylated naphthalenes, acetone, tetrahydrofuran, dimethylformamide, ethyl acetate, Isopropanol and ethanol, also denatured ethanol.
  • mineral oil for example "mineral oil”
  • aromatics such as, for example, toluene, ethylbenzene or xylene, furthermore alkylated naphthalenes, acetone, tetrahydrofuran, dimethylformamide, ethyl acetate, Isopropanol and ethanol, also denatured ethanol.
  • surfactants are cationic surfactants and preferably anionic and nonionic surfactants.
  • those surfactants whose interfaces active ion is positively charged referred to as cationic surfactants
  • those surfactants whose interfaces active ion is negatively charged as anionic surfactants.
  • Examples of particularly preferred anionic surfactants are alkali metal, alkanolammonium and ammonium salts of C 8 -C 12 alkyl sulfates, alkali metal, alkanolammonium and ammonium salts of sulfuric acid Ci 2 -C 8 -alkyl Halbestern ethoxylated alkanols (degree of ethoxylation: from 4 to 30), and alkali metal -, alkanolammonium and ammonium salts of ethoxylated C 4 -C 2 -alkylphenols (degree of ethoxylation: 3 to 50), of C 2 -C 18 -alkylsulfonic and of C 9 -C 18 -Alkylarylsulfonklaren (aryl radical: phenyl, ToIyI, naphthyl).
  • Examples of particularly preferred surface-active substances are C 4 -C 20 -alkanol ethoxylates, in particular the formula C 4 -C 20 -alkyl- (EO) y -OH, the HLB value of these alkanolethoxilates being according to WC Griffin, ie 20 times the mass fraction of ethylene oxide (EO) in the molecule, between 2 and 19, preferably between 6 and 15, particularly preferably between 8 and 14.
  • surfactants are polyalkylene oxides and alkanolalkoxi- late, z.
  • HLB value calculated as 20 times the mass fraction of ethylene oxide plus 10 times the mass fraction of further alkylene oxide such as propylene oxide, so is it is between 2 and 19, preferably between 6 and 15, particularly preferably between 8 and 14.
  • the cleaning process according to the invention in the presence of at least one additive, it is possible to contact, for example, aminoplast foam with a liquid additive and then to clean it as described above.
  • the contacting can be done for example by soaking, spraying and in particular by impregnation.
  • structured surfaces to be cleaned belong to tools or workpieces. Examples include:
  • taps and in particular floors, doorknobs, pipes, pipes are each called with structured surfaces.
  • Another object of the present invention are discs made from
  • Discs according to the invention are preferably round. Discs of the invention may, for example, have a diameter of 1 to 200 cm and a thickness of 0.1 to 10 cm.
  • Another object of the present invention are cone-shaped or pin-shaped parts, made from
  • Cone-shaped or pin-shaped parts according to the invention preferably have an average diameter of 1 to 20 mm, preferably 5 to 20 mm, and a length of 2 to 200 cm. In a preferred embodiment of the present invention, the length / average diameter ratio is in the range of 1.5 to 20.
  • Cone-shaped parts according to the invention preferably have a maximum diameter of 1 to 200 cm with a cone angle of 5 to 179 °, preferably 10 to 150 °, projected perpendicular to the axis of rotation.
  • Slices according to the invention and conical or pin-shaped parts can be connected, for example, to support plates or support disks and stuck to machines such as, for example, drills, grinding machines, and are then particularly well suited for carrying out the cleaning method according to the invention.
  • Discs and conical or pin-shaped parts according to the invention can easily be produced from aminoplastic foam treated according to (b1) or (b2) or untreated.
  • a suitable method for producing disks according to the invention and conical or pin-shaped parts is, for example, cutting, also before or after modification with (b-1) or (b-2).
  • Another object of the present invention is the use of aminoplast foams selected from (a) open-celled aminoplast foams having a density in the range of 5 to
  • a spray-dried melamine / formaldehyde precondensate (molar ratio 1: 3, molecular weight about 500 g / mol) to an aqueous solution with 3 wt .-% formic acid and 1, 5% of the sodium salt of a mixture of alkyl sulfonates with 12 to 18 carbon atoms in the alkyl radical (emulsifier K 30 from Bayer AG), the percentages being based on the melamine / formaldehyde precondensate.
  • concentration of the melamine / formaldehyde precondensate based on the total mixture of melamine / formaldehyde precondensate and water, was 74% by weight.
  • Viscose sponge 195x85x60 mm (Walter Schnee GmbH & Co. KG, Dornburg) slightly occupied
  • a used metal file (steel file with cross-cut with a structuring, on average VA mm distance between the teeth, arranged as a square grid) was at three equally visibly heavily soiled areas ( ⁇ 1 cm 2 ), each with a water-soaked cleaning sponge in the same manner cleaned (ten times scrubbing).

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Abstract

La présente invention concerne un procédé pour nettoyer des surfaces structurées en utilisant des mousses d'aminoplastique choisies parmi a) des mousses d'aminoplastique à cellules ouvertes présentant une densité située entre 5 et 500 kg/m3 et un diamètre moyen de pore situé entre 1 µm et 1 mm, b) des mousses d'aminoplastique à cellules ouvertes présentant une densité située entre 5 et 500 kg/m3 et un diamètre moyen de pore situé entre 1 µm et 1 mm, qui ont été traitées (b1) avec une préparation aqueuse d'au moins un composé (b-1) qui présente au moins un groupe hémiaminal ou aminal par molécule ou au moins un copolymère contenant au moins un monomère incorporé par polymérisation qui contient des groupes OH, des groupes ß-dicarbonyle ou des groupes époxydes ou (b2) avec au moins un polymère (b-2) qui contient des groupes carboxyle solides et/ou des groupes d'ester d'acide carboxylique à température ambiante et qui présente un poids moléculaire M<SUB>n</SUB> situé entre 1000 et 1000000 g/mol.
PCT/EP2006/000474 2005-01-24 2006-01-20 Procede pour nettoyer des surfaces structurees Ceased WO2006077129A1 (fr)

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DE102005003312.1 2005-01-24
DE200510003312 DE102005003312A1 (de) 2005-01-24 2005-01-24 Verfahren zur Reinigung von strukturierten Oberflächen

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008005282U1 (de) 2008-04-16 2008-07-31 Basf Se Zahnbürste mit einem Mundstück aus einem offenzelligen Melamin-Formaldehyd-Schaumstoff

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Publication number Priority date Publication date Assignee Title
DE1911643A1 (de) * 1969-03-07 1970-09-24 Bayer Ag Verfahren zur Herstellung von zellfoermigen Kunststoffen
US4125664A (en) * 1974-07-13 1978-11-14 Herbert Giesemann Shaped articles of foam plastics
US4178161A (en) * 1976-11-11 1979-12-11 Tenneco Chemicals, Inc. Manufacture of rigidized convoluted foam from flexible polyurethane foam and resultant product
GB1570485A (en) * 1975-11-18 1980-07-02 Robinson & Sons Ltd Absorbent material for aqueous fluids
GB2145940A (en) * 1983-08-13 1985-04-11 British Vita Non-flexible fire retardant foam
DE3434817A1 (de) * 1984-03-02 1985-09-12 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Verfahren zur herstellung eines reinigungsmittels und reinigungsmittel
US6503615B1 (en) * 1998-08-28 2003-01-07 Inoac Corporation Wiping cleaner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911643A1 (de) * 1969-03-07 1970-09-24 Bayer Ag Verfahren zur Herstellung von zellfoermigen Kunststoffen
US4125664A (en) * 1974-07-13 1978-11-14 Herbert Giesemann Shaped articles of foam plastics
GB1570485A (en) * 1975-11-18 1980-07-02 Robinson & Sons Ltd Absorbent material for aqueous fluids
US4178161A (en) * 1976-11-11 1979-12-11 Tenneco Chemicals, Inc. Manufacture of rigidized convoluted foam from flexible polyurethane foam and resultant product
GB2145940A (en) * 1983-08-13 1985-04-11 British Vita Non-flexible fire retardant foam
DE3434817A1 (de) * 1984-03-02 1985-09-12 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Verfahren zur herstellung eines reinigungsmittels und reinigungsmittel
US6503615B1 (en) * 1998-08-28 2003-01-07 Inoac Corporation Wiping cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008005282U1 (de) 2008-04-16 2008-07-31 Basf Se Zahnbürste mit einem Mundstück aus einem offenzelligen Melamin-Formaldehyd-Schaumstoff

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