WO2011086421A1 - Composition de décapant pour sols à base de matières premières renouvelables - Google Patents

Composition de décapant pour sols à base de matières premières renouvelables Download PDF

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Publication number
WO2011086421A1
WO2011086421A1 PCT/IB2010/050114 IB2010050114W WO2011086421A1 WO 2011086421 A1 WO2011086421 A1 WO 2011086421A1 IB 2010050114 W IB2010050114 W IB 2010050114W WO 2011086421 A1 WO2011086421 A1 WO 2011086421A1
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Prior art keywords
floor
composition
stripper
alkoxylated
floor stripper
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PCT/IB2010/050114
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English (en)
Inventor
Christina Klosges
Nicola Kriens
Matthias Menzel
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Ecolab Inc.
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Publication date
Application filed by Ecolab Inc. filed Critical Ecolab Inc.
Priority to PCT/IB2010/050114 priority Critical patent/WO2011086421A1/fr
Publication of WO2011086421A1 publication Critical patent/WO2011086421A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D9/00—Chemical paint or ink removers
    • C09D9/04—Chemical paint or ink removers with surface-active agents
    • 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
    • C09D9/00—Chemical paint or ink removers
    • C09D9/005—Chemical paint or ink removers containing organic solvents

Definitions

  • the present invention relates to a floor stripper composition based on renewable raw materials and to a method of stripping a floor having a floor finish on the surface.
  • the present invention provides a new ecological "green” floor stripper.
  • acrylate floor finish polymers with readily - disruptable crosslinking sites which may be removed for refinishing using an appropriate floor stripping agent.
  • acrylate floor finish polymers often employ metal ion crosslinking and are removed using alkaline strippers.
  • the finish requires increased chemical resistance (e.g., hospitals and other locations where rubbing alcohol and other finish-discolouring solvents may be spilled)
  • less readily disruptable cross-linking agents such as aziridines may be employed. This however can make it very difficult to remove the old finish when refinishing is desired. Finishes having especially high chemical resistance may have to be removed using mechanical means such as sanding. This can damage the underlying flooring substrate.
  • flooring substrates are also susceptible to damage from the chemicals employed in aggressive floor strippers. For example, linoleum may turn brown under high pH conditions.
  • References relating to floor strippers include U.S. Patent Nos. 5,342,551, US 5,419,848, US 5,637,559, US 5,804,541, US 5,849,682, US ,977,042, US 6,544,942, US 6,583, US 2002/0028621, US
  • Traditional floor stripper formulations normally have a very high pH value above 12 due to high alkalinity and contain sources of alkalinity like sodium or potassium hydroxide or organic amines. Furthermore, they contain high amounts of organic solvents like, for example, benzyl alcohol, mono phenyl glycol or propylene glycol ethers and surfactants. Very often the floor stripper compositions are classified as corrosive due to their high pH value. Nearly all used raw materials which are used in traditional floor finishes are prepared from petrochemical sources which means that mineral oil is used as the basis of these compounds.
  • the amount of organic solvent in such floor stripper products is very high and can be up to 80 or more than 80 wt-% of the total composition.
  • These floor stripper formulations are perceived as typical non-ecological products, because they are used in comparatively high concentrations and contain hazardous or toxic organic solvents.
  • a typical floor stripper is described in the WO 2006/113144.
  • This floor stripper composition comprises as a floor finish dissolver preferably ethylene glycol phenyl ether or benzyl alcohol in very high amounts. The amount of these solvents can be up to 98 %.
  • WO 2009/067120 describes a floor stripper for chemical resistant cross-linked floor finishes with a lower amount of organic solvent.
  • a solvent mixture of benzyl alcohol and propylene glycol mono phenyl ether is used in an amount of about 20 wt-%.
  • the pH value of this floor finish stripper composition is lower compared to the traditional floor strippers known before and lies around a pH between 9 and 10.
  • the main criteria for the conventional stripper product are the excellent film removal ability, the swelling property to remove old, crusted polymer dispersions from the floor and soils.
  • a further important aspect is the wetting and cleaning performance so that the application solution can react fast without becoming dry and provides a satisfying cleaning result.
  • High alkalinity in combination with strong organic solvents and surfactants in comparable high amounts is used today with the drawback that quite often the floor corrodes or specific sensitive floor types like linoleum cannot be treated with such a composition. Therefore, substitution of ingredients based on natural sources from a technical point of view is extremely difficult to find.
  • the focus of this invention is to provide a new green stripper formulation which has to be based mostly on naturally sourced raw materials to get less environmental impact.
  • Naturally sourced raw materials like surfactants, solvents, fatty acids, are used and have to be proved on the on hand considering their quality in performance and on the other hand their environmental impact such as biodegradability and classification. Additionally, the source and the properties of the materials are important.
  • the formulation has to remove old polymer dispersions easily from the floor.
  • the formulation has to have a very good swelling property.
  • the formulation has to have a high general cleaning performance and a low foam behaviour for use in floor cleaning machines. Furthermore, it must have a good wetting behaviour and a pH value which does not corrode the floor and ensures very good material compatibility. Furthermore, it should fulfil the SWAN criteria for floor strippers for eco label certification.
  • the technical object of the invention is to provide a floor stripper composition mostly based on renewable raw materials which do not come from petrochemical sources, and wherein the composition furthermore fulfils the criteria for a high quality floor stripper having excellent film-removing ability, good swelling property to remove old, crusted polymer dispersions and soils, low alkalinity, good wetting properties and cleaning properties and must be non-corrosive.
  • organic solvent having at least one C8 to C24 carbon chain and is made from plant oil or animal oil
  • non-ionic surfactant made from plant oil or animal oil
  • the composition furthermore contains less than 10 wt-% of organic compounds with CI to C7 carbon atoms which are prepared from petrochemical sources.
  • the first stripper composition comprises an organic solvent which has at least one linear or branched carbon chain with an even number of carbon atoms between C8 and C24.
  • the composition contains less than 10 wt-% of organic compounds with Ci to C7 carbon atoms and aromatic compounds and cycloaliphatic compounds which are prepared from petrochemical sources.
  • the invention relates to a floor stripper formulation having a very good material compatibility to remove old and resisting sticking salts and polymer films from floors.
  • the components used for the floor stripper formulation are mostly naturally sourced components preferably from vegetable oils like, for example, coconut oil, corn oil, cottonseed oil, olive oil, palm oil, palm kernel oil, peanut oil, rapeseed oil, sunflower oil, sesame oil, soybean oil and sunflower oil.
  • oils or fats from plant or animal material can be used.
  • the floor stripper composition has preferably a pH of less than 10.5 measured at 20 °C to guarantee that the floor stripper formulation is alkaline and can build up saponification with fatty acids and on the other hand to ensure a very good material compatibility of the floor stripper composition.
  • the floor stripper composition comprises 3 to 25 wt-% organic solvents, more preferably 5 to 20 wt-% and most preferably 5 to 15 wt-% of organic solvent.
  • the organic solvent has the function to remove old, crusted polymer dispersions from the floor. It should also have a good swelling property so that the hard floor finishes, which can be, for example, of polyacrylate, are softened and it is easier to remove them.
  • the organic solvent is selected form the group consisting of C8 to CIO alkoxylated or non-alkoxylated fatty acids, C8 to C24 alkoxylated or non- alkoxylated fatty alcohols, C8 to C24 amides and C8 to C24 alkyl amides and C8 to C24 dialkyl amides and amines. More preferred are Laurly N, N dimethylamid, C8 to CIO ethoxylated fatty acids, amines, N,N dimethyldecanamide and mixtures thereof.
  • the floor stripper composition furthermore comprises a co-solvent in low amounts for enhancing of the floor finish removal properties.
  • This co-solvent can be any organic solvent.
  • phenyl-substituted alkyl alcohols include benzyl alcohol; terpineols (e.g., alpha, beta, gamma, etc.; slight water solubility); ethylene glycol monobenzyl ether; alpha-phenylethyl alcohol, beta-phenylethyl alcohol, ethylene glycol phenyl ether, commercially available as DOWANOL(TM) EPh(TM) from Dow Chemical Co.), propylene glycol phenyl ether (commercially available as DOWANOL PPh(TM) from Dow Chemical Co.) and mixtures thereof.
  • Benzyl alcohol, ethylene glycol phenyl ether and propylene glycol phenyl ether are preferred phenyl-substituted alkyl alcohols.
  • oxygenated swelling solvents may be employed as co- solvent in the disclosed compositions and methods.
  • Representative oxygenated swelling solvents include alcohols, ethers, esters, aliphatic acids or anhydrides, and ketones, including 2-, 3- or 4-acetamidophenol ( ⁇ 1.4% water solubility); acetanilide ( ⁇ 1% water solubility); acetophenone ( ⁇ 1% water solubility); 2- acetyl- 1-methylpyrrole; benzyl acetate ( ⁇ 1% water solubility); benzyl benzoate ( ⁇ 1% water solubility); oxygenated essential oils (e.g., benzaldehyde, carvone, cinnamealdehyde, borneol and its esters, citrals, linalool and its esters); dibasic esters such as dimethyl adipate, dimethyl succinate, dimethyl glutarate (often available in a mixture, including products available under the trade designations
  • Additional representative oxygenated solvents include amyl acetate, amyl alcohol, butanol, 3- butoxyethyl-2-propanol, butyl acetate, n-butyl propionate, cyclohexanone, diacetone alcohol, diethoxyethanol, diethylene glycol methyl ether, diisobutyl carbinol, diisobutyl ketone, dimethyl heptanol, dipropylene glycol tert-butyl ether, ethanol, ethyl acetate, 2- ethylhexanol, ethyl propionate, ethylene glycol methyl ether acetate, hexanol, isobutanol, isobutyl acetate, isobutyl heptyl ketone, isophorone, isopropanol, isopropyl acetate, methanol, methyl amyl alcohol, methyl n-amyl ketone,
  • Preferred oxygenated swelling solvents include propylene glycol monobutyl ether, dipropylene glycol dimethyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, NMP, NEP and mixtures thereof.
  • Some oxygenated swelling solvents e.g., NMP or NEP
  • minor amounts of low flash point oxygenated swelling solvents such as 1,3-dioxolanehose (flash point about -6[deg.] C), ethanol (flash point 12[deg.] C), isopropanol (flash point 12[deg.] C) and other solvents that will be known by persons having ordinary skill in the art may be included together with major amounts of a higher flash point oxygenated swelling solvent, to provide a composition with more acceptable flammability characteristics than one containing only the low flash point solvent.
  • low flash point oxygenated swelling solvents such as 1,3-dioxolanehose (flash point about -6[deg.] C), ethanol (flash point 12[deg.] C), isopropanol (flash point 12[deg.] C) and other solvents that will be known by persons having ordinary skill in the art may be included together with major amounts of a higher flash point oxygenated swelling solvent, to provide a composition with more acceptable flammability characteristics than one containing only the low flash point solvent.
  • the amount of co-solvent based on the total composition is less than 10 wt-%, preferably less than 5 wt-%, more preferably less than 2 wt-% and most preferably less than 0,1 wt-%.
  • the floor stripper composition according to the invention also comprises 1 to 25 wt- % of a solubilizer.
  • the solubilizer has emulsifying properties and is used to obtain a clear solution of all ingredients of the composition.
  • a variety of solubilizers may be employed in the disclosed compositions and methods.
  • the solubilizer desirably serves as a hydrotrope for one or more hydrophobic ingredients in the stripper composition, may contain carbon atoms, (e.g., from about 2 to about 11 carbon atoms) or heteroatoms (e.g., nitrogen or sulfur), and may be substituted with various moieties (e.g., hydroxyl, ester, aldehyde or alkyl groups), so long as such carbon atoms, heteroatoms and moieties do not prevent the composition from attaining a single phase and do not cause excessive foaming when employing the chosen application equipment.
  • moieties e.g., hydroxyl, ester, aldehyde or alkyl groups
  • solubilizers include various aromatic acids, water-soluble alkali metal salts of aromatic acids, water-soluble organic amines, water- soluble salts of such amines, and mixtures thereof.
  • solubilizers including sodium cumene sulfonate, potassium cumene sulfonate, hydroxyethane sulfonic acid, toluene sulfonic acid, xylene sulfonic acid, methyl naphthalene sulfonic acid, 1- hydroxyethylidene-l,l-diphosphonic acid, n-butyl acid phosphate, phenyl acid phosphate, dimethylpyrophosphoric acid, 2- phosphonobutane-l,2,4-tricarboxylic acid, benzoic acid, hydroxybenzoic acids (e.g., 2- hydroxybenzoic acid), dihydroxybenzoic acids (e.g., 3,5- dihydroxybenzoic acid), pyridinecarboxylic acids (e.g., 2-pyridinecarboxylic acid), pyridinedicarboxylic acids (e.g., 2,6-pyridinedicarboxylic acid), sulfosucc
  • the preferred solubilizer is selected from the group consisting of cumolsulfate, cumolsulfonate, C16 to C20 fatty acid ester, glycerine or mixtures thereof, more preferred is cumolsulfonate of sodium or potassium.
  • solubilizer should be employed so that the composition has a single phase.
  • desired solubilizer amount will vary somewhat depending upon the water solubility of the chosen solvent. Normally however at least one and in some instances the solvent will be present in amounts above its water solubility limits in the absence of a solubilizer, and thus the solubilizer will be needed to provide a single phase stripper composition.
  • the solubilizer may represent for example about 1 to 25 wt-% preferably 3 to 20 wt-% and more preferably 5 to 15 wt-% of the total composition weight.
  • the composition furthermore comprises 0.5 to 12 wt-% of a non-ionic surfactant.
  • the surfactant is used in the stripper composition for cleaning purposes by emulsifying the dirt. Furthermore the surfactant reduces the surface tension of water and allows a better wetting of the floor.
  • Exemplary non-ionic surfactants include alkoxylated C8 to C 24 fatty alcohol, alkoxylated or non-alkoxylated C8 to C24 fatty acid ester, alkoxylated or non-alkoxylated C8 to C24 fatty acid ether, alklypolyglycoside, saccharose esters or mixtures thereof. Alkylpolyglycosides are preferred non-ionic surfactants.
  • the non-ionic surfactant is used in an amount of from 0,5 to 12 wt-%, preferably 0,8 to 10 wt-% and most preferred 1 to 8 wt-% of the total composition.
  • the floor stripper composition furthermore comprises 0.1 to 10 wt-% of a source of alkalinity.
  • the source of alkalinity is used to enhance the pH of the composition. Furthermore it can react with fatty acids to form the saponification agent.
  • hydroxide compounds may be combined with the fatty acid or fatty ester to form the saponification agent.
  • Representative inorganic hydroxide compounds include metal hydroxides like lithium hydroxide, sodium hydroxide, potassium hydroxide and non-metal hydroxides like ammonium hydroxide. Sodium hydroxide and potassium hydroxide are preferred.
  • Representative organic alkaline sources include amines, alkanolamines or mixtures thereof.
  • the amount of hydroxide compound may be determined based on the number of fatty acid or fatty ester acid equivalents employed. Sufficient excess hydroxide compound should be employed so that the stripper composition will have an alkaline pH, of less than 11 preferably less than 10,5 measured at 20° C.
  • the amount of source of alkalinity based on the total composition is 0,1 to 10 wt-% preferably 0,3 to 6 wt-% and most preferred 0,5 to 4 wt-%.
  • the floor stripper composition furthermore comprises water up to 100 wt-% in the composition.
  • Tap water deionized water, distilled water or water in any other suitable form may be used in the disclosed compositions and methods.
  • the use of softened water or of water having a low overall hardness level may facilitate application of the disclosed compositions to a hardened floor finish and limit de wetting.
  • Water may represent for example at least 5 wt. %, at least 10 wt. %, at least 20 wt. %, at least 25 wt. %, at least 30 wt. %, at least 40 wt. %, at least 50 wt. % or at least 60 wt. % of the total stripper composition. Water may for example also represent less than 80 wt. %, less than 70 wt. %. less than 60 wt. %, less than 55 wt. %, less than 50 wt. %, less than 40 wt. %, less than 30 wt. % or less than 20 wt. % of the total stripper composition.
  • the appropriate amount will typically vary somewhat depending on the other ingredients in the stripper composition and the characteristics of the floor finish whose stripping or deep scrubbing is desired.
  • the composition may be sold in ready to use form, or if desired may be sold as a water-containing concentrate designed to be diluted with additional water, e.g., where deep scrubbing rather than stripping is desired.
  • a preferred water amount for use in ready to use compositions is about 10 to about 70 wt. %, and more preferably about 20 to about 60 wt. % of the total stripper composition.
  • the floor stripping composition according to the invention is normally prepared as a concentrate, but is usually used as a solution by delusion of a concentrate in volume delusion ratio of concentrate to water in a range of 1 : 50 to 1 : 1 , preferably 1 : 10 to 1: 1.
  • the composition furthermore may contain 0 to 6 wt-% of a fatty acid.
  • the fatty acid may for example be saturated or unsaturated and is a naturally-occurring produced.
  • the fatty acid ester may contain for example from about 8 to about 24 aliphatic carbon atoms.
  • Representative saturated fatty acids include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid and mixtures thereof.
  • Representative unsaturated fatty acids include myristoleic acid, palmitoleic acid, oleic acid, linoleic acid, alpha-linolenic acid, arachidonic acid, eicosapentaenoic acid, erucic acid, docosahexaenoic acid and mixtures thereof (e.g., coconut fatty acid).
  • the fatty acid reacts with the alkalinity source to the saponification agent.
  • a variety of saponification agents may be employed in the disclosed compositions and methods.
  • the saponification agent comprises the reaction product of a fatty acid with a stoichiometric excess of the alkaline source preferably the metal hydroxide or the ammonium hydroxide.
  • the fatty acid or fatty ester and the saponification agent made therefrom desirably have a low or at least not unpleasant odor.
  • the amount of fatty acid based on the total composition is 0 to 6 wt-%, preferably 0,3 to 5 wt-% and most preferred 0,5 to 3 wt-%.
  • the floor stripper composition according to the invention is prepared by mixing the ingredients until a clear single phase solution is formed.
  • the invention further relates to a method of stripping a floor having a floor finish on the surface comprising the steps of providing the concentrate according to the invention or a use solution of the concentrate, applying to a floor a composition, the concentrate composition or the use solution, allowing the applied composition or use solution to soften or dissolve at least some of the floor finish and removing the composition or the use solution and the softened or dissolved floor finish from the floor.
  • the floor finish is a cross-linked floor finish.
  • a variety of hardened floor finishes may be stripped or deep scrubbed using the disclosed method.
  • Representative commercially available floor finishes include
  • the stripper/cleaner should be diluted with water prior to use, e.g., at an intended use location.
  • Ordinary tap water, softened water or process water may be employed.
  • the concentrate: water dilution ratio usually will be at least 1 : 1 by volume, for example at least 1 :2, at least 1 :3, at least 1 :4, at least 1 :5, at least 1 :6, at least 1 :8, at least 1 : 10 or more.
  • a variety of mixing methods may be employed. Mixing in a mop bucket is one such method and may be preferred.
  • the stripper/cleaner may be applied using techniques that will be familiar to those skilled in the art (e.g., using a flat or string mop, squeegee, roller or towel).
  • the applied stripper/cleaner should be allowed to stand for a suitable time (e.g., for at least 10, at least 20 or at least 30 minutes, and if need be up to one hour, up to two hours or longer) while it softens or deep scrubs the floor finish.
  • the floor finish and stripper/cleaner may optionally be abraded using a rotary floor machine equipped with a suitably mild abrasive (e.g., a green or black SCOTCH-BRITE(TM) Floor
  • the composition (and, where stripping is intended, the softened finish) may be removed using a variety of techniques that will be familiar to those skilled in the art including vacuuming, mopping, scrubbing, wiping or scraping.
  • the stripped floor or deep scrubbed floor finish may be rinsed using at least one and preferably two or more applications of water, allowed to dry and a layer or layers of floor finish applied thereto and caused or allowed to harden. More than one application of floor finish and extra drying time between coats may be needed to ensure that porous portions of the underlying floor or floor finish are adequately filled.
  • composition of the invention several tests were made to evaluate the film removal properties, the cleaning performance and the foam behaviour of the composition according to the invention compared to standard products of the state of the art which contain organic solvents like benzyl alcohol,alkylene glycol alkyl ether, glycol ether compounds. In the following the test methods are described.
  • the stripping-ring test is a test method to determine the film removal ability of stripper products on coated PVC-strips.
  • a multi-layered and coloured film is produced by the application of different coloured floor finishes on a white PVC, to be able to remove the layers stepwise. The more layers can be removed, the better is the film removal ability of the stripper.
  • the colours that are used are: supranol yellow, astraphloxin red (producer:
  • the PVC-strip has to be stripped before the different coloured floor finishes are applied by a manual applicator in the following sequence: three layers yellow, three layers green, three layers red and at last three layers blue.
  • Each single colour layer has to dry for one to two hours at room temperature and before a colour-change, the film has to cure for two to five days and subsequently the coated PVC-strip is stored in a dark, dry and cool area until use.
  • Different kinds of stripper application solutions are tested with the stripping-ring test in given time intervals. First 30 seconds, then 60 seconds and finally 90 seconds. The various application solutions obtain different results concerning the film removal ability. The performance of each stripper is evaluated by the film removal.
  • the one side self-adhesive stripping rings are affixed before starting the stripping-ring test. Afterwards, the stripping rings will be filled with the application solution to the top level of the stripping rings. Directly after the reaction time, the application solution is absorbed by a paper towel and the stripping rings are removed by a scoop.
  • the evaluation of the film removal ability refers to the twelve assigned coatings and an evaluation scheme of the stripper is explained in the following: layers colour evaluation
  • This test method also called Gardner method, is used to determine the cleaning efficiency of different cleaning products.
  • polyester sponges have to soak in tap water overnight. Thereby, one sponge per strip is needed.
  • 2 g of the test soil standard test soil IPP 83/21, producer: WfK Krefeld
  • WfK Krefeld standard test soil IPP 83/21, producer: WfK Krefeld
  • the PVC film with the paperboard strips on it is cut along the edge with a carpet knife. Subsequently, one of the prepared PVC strips is placed on the guide rail on top of the Wet Abrasion Scrub Tester (model 494, DIN-ASTM- 515, producer: Erichsen GmbH & Co. KG).
  • the sponge is placed in the holder of the Wet Abrasion Scrub Tester and laid on the surface with a weight of 400 g.
  • the application solution is used with a concentration of 1 and 5 wt-% and tap water is used as reference.
  • the application solution is applied on the top of the soiled strip and also on the sponge by a measuring spoon.
  • the volume of the measuring spoon is 12.5 ml, whereby 25 ml of the application solution is used altogether.
  • the sponge is positioned on the top of the soiled strip and the measuring is started - so the sponge holder begins to move forward and backward 10 times.
  • test strip is taken off and rinsed under running deionized water which has to run during the whole test to make sure that the same water pressure is gained.
  • the test strips have to dry overnight at room temperature and the measuring of the degree of whiteness (Y-value) is determined at the following day by a photometer sphere gloss (producer: Byk Gardner).
  • the foam behaviour test provides information about the foam volume of all kinds of cleaners in general. As strippers have to have a low foam volume, foam behaviour is an important parameter concerning stripper products. Foam is hindering by aspirating the application solution from the floor. The wet vacuum cleaner is filling with foam quickly because of the air stream, so that it has to be cleared in short time intervals.
  • test solutions at maximum 50 ml of several dilutions, at most 1 wt- % and 5 wt-%, are filled in the measuring cylinder, which is locked with a stopper.
  • the measuring cylinder is clamped at the holder of the rotating foam generator, wherein three more cylinders can be used. After starting the rotating foam generator, it stops after 200 cycles, with a rotation of 360° for every cycle (27 rpm). Immediately after the last tilt, the foam volume is read off, and also again after one and five minutes. The poured in solutions of 50 ml will be subtracted from the total foam volumes, which are determined at the end of the test. Generally, the less foam builds up and the quicker the foam breaks down, the better is the defoaming ability of the test product. This parameter is very important especially concerning auto scrubber cleaning.
  • compositions were tested.
  • the compositions were prepared by mixing the components thoroughly until a clear solution is produced.
  • Table 1 shows the chemical composition of the tested stripper formulations.
  • Examples 6 and 7 are comparative examples with products of the state of the art comprising organic solvents from petrochemical sources.
  • Example 6 is STRIPPER from Tana Chemie GmbH and example 7 is Bendurol maxx from Ecolab. 3. Stripping-Ring Test - Film Removal Ability
  • the stripping ring test was carried out as described above with the compositions of table 1.
  • the different formulations are tested in a concentration of 1:3 concentrate to water to measure the film removal ability.
  • the following table 2 shows the results.
  • the cleaning efficiency of the individual formulations are determined as described above by the Y- value as outlined in table 3. Generally, the higher the Y- values, the better is the result.

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  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
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Abstract

L'invention porte sur une composition de décapant pour sols comprenant 1 à 30 % en poids d'un solvant organique ayant au moins une chaîne carbonée en C8 à C24 et qui est fabriqué à partir d'huile végétale ou d'huile animale, 1 à 25 % en poids d'un solubilisant fabriqué à partir d'huile végétale ou d'huile animale, 0,5 à 12 % en poids d'un tensioactif non ionique fabriqué à partir d'huile végétale ou d'huile animale, 0,1 à 10 % en poids d'une source d'alcalinité fabriquée à partir d'huile végétale ou d'huile animale, le reste pour compléter à 100 % en poids étant de l'eau, la composition contenant moins de 10 % en poids de composés organiques comprenant 1 à 7 atomes de carbone qui sont préparés à partir de sources pétrochimiques.
PCT/IB2010/050114 2010-01-12 2010-01-12 Composition de décapant pour sols à base de matières premières renouvelables WO2011086421A1 (fr)

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US20130196885A1 (en) * 2011-08-01 2013-08-01 Rhodia Operations Use of environmentally friendly solvents to replace glycol-based solvents
WO2017122037A1 (fr) * 2016-01-14 2017-07-20 Rhodia Poliamida E Especialidades Ltda Formulations de dissolvant pour produit de polissage

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EP0578492A1 (fr) * 1992-07-09 1994-01-12 Specialty Environmental Technologies Inc. Composition de décapant de peinture

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US20130196885A1 (en) * 2011-08-01 2013-08-01 Rhodia Operations Use of environmentally friendly solvents to replace glycol-based solvents
US10633579B2 (en) * 2011-08-01 2020-04-28 Rhodia Operations Use of environmentally friendly solvents to replace glycol-based solvents
WO2017122037A1 (fr) * 2016-01-14 2017-07-20 Rhodia Poliamida E Especialidades Ltda Formulations de dissolvant pour produit de polissage
CN108603144A (zh) * 2016-01-14 2018-09-28 罗地亚聚酰胺特殊品公司 上光剂去除剂配制品
US10655087B2 (en) 2016-01-14 2020-05-19 Rhodia Poliamida E Especialidades S.A. Polish remover formulations
CN108603144B (zh) * 2016-01-14 2022-02-11 罗地亚聚酰胺特殊品公司 上光剂去除剂配制品

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