EP3623455A1 - Formulation détartrante pour toilettes - Google Patents
Formulation détartrante pour toilettes Download PDFInfo
- Publication number
- EP3623455A1 EP3623455A1 EP19196827.0A EP19196827A EP3623455A1 EP 3623455 A1 EP3623455 A1 EP 3623455A1 EP 19196827 A EP19196827 A EP 19196827A EP 3623455 A1 EP3623455 A1 EP 3623455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- descaling
- formulation
- acid
- formulation according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 93
- 238000009472 formulation Methods 0.000 title claims abstract description 68
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 55
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000006185 dispersion Substances 0.000 claims description 13
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 13
- -1 aromatic organic acids Chemical class 0.000 claims description 11
- 230000000485 pigmenting effect Effects 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 11
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 10
- KVCGISUBCHHTDD-UHFFFAOYSA-M sodium;4-methylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1 KVCGISUBCHHTDD-UHFFFAOYSA-M 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003093 cationic surfactant Substances 0.000 claims description 8
- 239000003205 fragrance Substances 0.000 claims description 8
- 239000003945 anionic surfactant Substances 0.000 claims description 7
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 7
- 159000000000 sodium salts Chemical class 0.000 claims description 6
- HFQQZARZPUDIFP-UHFFFAOYSA-M sodium;2-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HFQQZARZPUDIFP-UHFFFAOYSA-M 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 5
- 150000003871 sulfonates Chemical class 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 claims description 4
- 235000005985 organic acids Nutrition 0.000 claims description 4
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims description 2
- 239000002304 perfume Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000003760 tallow Substances 0.000 claims description 2
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 claims 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 14
- 150000001412 amines Chemical class 0.000 description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 description 7
- 239000004579 marble Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 206010016825 Flushing Diseases 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 239000013020 final formulation Substances 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- OSCJHTSDLYVCQC-UHFFFAOYSA-N 2-ethylhexyl 4-[[4-[4-(tert-butylcarbamoyl)anilino]-6-[4-(2-ethylhexoxycarbonyl)anilino]-1,3,5-triazin-2-yl]amino]benzoate Chemical compound C1=CC(C(=O)OCC(CC)CCCC)=CC=C1NC1=NC(NC=2C=CC(=CC=2)C(=O)NC(C)(C)C)=NC(NC=2C=CC(=CC=2)C(=O)OCC(CC)CCCC)=N1 OSCJHTSDLYVCQC-UHFFFAOYSA-N 0.000 description 1
- 238000005985 Hofmann elimination reaction Methods 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000227425 Pieris rapae crucivora Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000001046 green dye Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 230000003165 hydrotropic effect Effects 0.000 description 1
- 150000004668 long chain fatty acids Chemical class 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 238000003221 volumetric titration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Images
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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/65—Mixtures of anionic with cationic 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/40—Dyes ; Pigments
-
- 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
Definitions
- the present invention relates to a descaling formulation for application in WCs.
- the descaling products for WCs that currently exist are products based on hydrochloric acid and are almost always formulated with rheology modifying systems to ensure a greater effectiveness on the vertical surfaces of the WC.
- the flowing speed on the ceramic walls of the WC must in fact be reduced, thus increasing the contact time of the product with the limestone and thus obtaining the removal of a greater quantity of encrustation.
- Another way of avoiding colour deposits on the walls of WCs is to use a white formulation that is then camouflaged with the ceramic of the WC.
- a similar solution must, however, take into account the inherent difficulty in covering a base tending to yellow: with time, the white formulation in any case tends to turn from white to beige and even to brown.
- the most common white pigment, titanium dioxide, is not capable of withstanding the pH conditions of descaling products of WCs for long, and it dissolves completely in a few days.
- the fate of all the other mineral fillers (gypsum, carbonates, silicates) that can be used for the same purpose is similar.
- the objective of the present invention is therefore to identify a descaling formulation for WC applications which overcomes the drawbacks of the formulations of the state of the art.
- the quaternary ammonium salt can be selected from salts having general formula (I) R 1 R 2 R 3 R 4 N + Cl - (I) wherein R 1 , R 2 , R 3 , R 4 , the same as or different from each other, are alkyl or alkyl-aryl groups having a number of carbon atoms ranging from 1 to 30.
- the quaternary ammonium salt is preferably selected from tallow-trimethylammonium chloride or hexadecyltrimethyl-ammonium chloride.
- Tallow is a product of animal origin, consisting of a mixture of triglycerides of C 14 -C 18 , saturated and unsaturated, long-chain fatty acids.
- the salt of a strong aromatic organic acid is preferably selected from sulfonates having general formula (II) R 1 -Ar-SO 3 Na (II) wherein R 1 is an alkyl group having a number of carbon atoms ranging from 1 to 30 and Ar is a phenyl group.
- the salt of the strong aromatic organic acid is more preferably selected from dodecylbenzenesulfonic acid sodium salt, 4-methylbenzenesulfonic acid sodium salt and relative mixtures.
- the weight ratio of quaternary ammonium salts/salts of strong aromatic organic acids ranges from 1,000:1 to 10:1, preferably from 5:1 to 4:1.
- the viscosifying agent is present in the formulation according to the present invention in a quantity ranging from 0.1 to 10% by weight: more specifically, the cationic surfactant is present in a quantity ranging from 0.09 to 9% by weight and the anionic surfactant in a quantity ranging from 0.01 to 1% by weight with respect to the total weight of the descaling formulation.
- the pigmenting agent is preferably a colloidal aqueous dispersion of an inert organic polymer, namely a styrene-acrylic copolymer, obtained by the polymerization of styrene and acrylic/methacrylic acid, having an average molecular weight ranging from 300,000 to 800,000 Daltons, preferably equal to 500,000 Daltons, and a concentration of solids ranging from 20 to 50% by weight, preferably equal to 35% by weight.
- the molecular weight is a number average molecular weight.
- the pigmenting agent is present in the formulation according to the present invention in a quantity ranging from 0.01 to 5% by weight with respect to the total weight of the descaling formulation.
- the descaling agent is selected from hydrochloric acid, phosphoric acid, sulfuric acid or sulfamic acid; it is preferably hydrochloric acid, more preferably aqueous hydrochloric acid at 33% by weight.
- the descaling agent is present in the formulation according to the present invention in a quantity ranging from 0.1 to 60% by weight, in the case of HCl at 33% by weight.
- the formulation according to the present invention may optionally also comprise a perfuming agent or fragrance in a quantity ranging from 0.01 to 1% by weight with respect to the total weight of the descaling formulation.
- the descaling formulation for WCs according to the present invention preferably comprises or consists of
- the descaling formulation for WCs according to the present invention more preferably consists of:
- the weight percentages always refer to the total weight of the descaling formulation for WCs according to the present invention.
- a further object of the present invention therefore relates to the use of the descaling formulation according to the present invention for application on the surface of bathroom fixtures, preferably for application on the surface of WCs, as a descaling agent and detergent.
- the particular viscosifying system of the formulation according to the present invention is based on the combination of a cationic surfactant such as a quaternary ammonium salt and an anionic surfactant, deriving from a strong aromatic organic acid.
- Quaternary ammonium salts are compounds known for their high chemical stability in a very wide pH range: more specifically, the stability is particularly high in an acid environment, whereas with extremely alkaline pHs degradation by Hofmann elimination may occur. The chemical stability evidently also results in a lower tendency towards yellowing, a phenomenon mainly caused by the presence of free amines.
- the micelles that are formed in the presence of the cationic surfactant can be disturbed by the addition of a suitable hydrotrope, with the formation of rod-like micellar species and a simultaneous increase in the viscosity. It should in fact be borne in mind that a descaling formulation for WCs must be characterized by specific viscosity characteristics in order to be able to function and remove encrustations efficiently.
- Salts of carboxylic acids and organic phosphates were therefore excluded, whereas sulfates, theoretically excellent candidates, showed a tendency towards hydrolysis which made their use extremely non-recommendable.
- Sulfonates and in particular the sodium salt of dodecylbenzenesulfonic acid, surprisingly proved to be particularly effective.
- the viscosifying system according to the present invention reaches a lower viscosity with respect to the traditional formulations based on ethoxylated amines, it guarantees in any case a correct adhesion of the descaling formulation according to the present invention to the walls of the WC and consequently an effective descaling effect.
- the descaling formulation according to the present invention can be characterized by a white pigmentation by the addition of a colloidal dispersion of inert organic polymers. This dispersion proved to be surprisingly stable even at a pH lower than 1.
- styrene-acrylic copolymer which can be assimilated according to the INCI nomenclature with a polystyrene, i.e. having chemical properties similar to those of a polystyrene.
- a fragrance can also be added to the aqueous mixture of hydrochloric acid, cationic surfactant, anionic surfactant and polystyrene dispersion, with a slight drop in the final viscosity.
- the descaling formulation for WCs according to the present invention thus obtained has no performance differences, expressed as the quantity of calcium carbonate removed, with respect to traditional descaling products containing amines/ ethoxylated amine oxides and dyes.
- Base composition of the reference product of the state of the art, containing HCl, amines and ethoxylated amine oxides Composition in raw materials % (w/w) Demineralized water 57.00000 Hydrochloric acid 33% 41.00000 Ethoxylated oleic amine Trade-name: Arlypon VPC, Basf 1.50000 Unsaturated ethoxylated C 16 -C 18 and C 18 alcohols, 0.50000 Trade-name: Arlypon VPC, Basf
- Arlypon VPC is a mixture of ethoxylated oleic amine and ethoxylated unsaturated C 16 -C 18 and C 18 alcohols, in a 3: 1 weight ratio.
- Base composition of the formulation according to the present invention containing HCl, quaternary ammonium salts and sulfonates Composition in raw materials %(w/w) Demineralized water 57.15000 Hydrochloric acid 33% 41.00000 tallow-trimethylammonium chloride 1.50000 Mixture of dodecylbenzenrsulfonic sodium salt and 4-methyl-benzenesulfonic acid sodium salt 0.35000 Trade-name: Marlon ARL, Sasol
- Base composition of the formulation according to the present invention containing HCl, quaternary ammonium salts and sulfonates Composition in raw materials %(w/w) Demineralized water 57.15000 Hydrochloric acid 33% 41.00000 hexadecyltrimethylammonium chloride 1.50000 Mixture of dodecylbenzenrsulfonic sodium salt and 4-methyl-benzenesulfonic acid sodium salt 0.35000 Trade-name: Marlon ARL, Sasol
- the acid titre is determined by classical volumetric titration with a standard solution of 0.1N NaOH and a phenolphthalein indicator.
- the density is measured by means of a Mettler DA - 100 M microdensometer, injecting the sample directly into the U-tube of the instrument, after calibration with demineralized water.
- the viscosity of the products is measured by a Ford cup with a 2 mm diameter hole, completely filling the instrument with the fluid under examination and measuring the time taken for its total emptying.
- Example 4 The following performance tests were then carried out comparing the final formulation of Example 4 according to the present invention and the final formulation of Example 1 according to the state of the art.
- the descaling power of a WC cleaner was evaluated with two performance tests suitable for measuring how much CaCO 3 (limestone) is consumed over time.
- Figure 1 shows the two samples, the base formulation according to the state of the art of Example 1 (on the left) and the base formulation according to the present invention of Example 2 (on the right), stored at 40°C for three months: the different tendency towards yellowing of the base is evident.
- the base formulation according to the state of the art of Example 1 has a substantially brown colour, whereas the base formulation according to the present invention of Example 2 is still completely transparent.
- Figure 2 shows the descaling formulation according to the present invention of Example 4, stored at 5°C (left), 20°C (center) and 40°C (right) for three months: the colour stability of the product is evident, which is white and remains white even after storage for three months at 40°C.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Saccharide Compounds (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201930414T SI3623455T1 (sl) | 2018-09-12 | 2019-09-11 | Formulacija za odstranjevanje vodnega kamna za WC |
| RS20221184A RS63907B1 (sr) | 2018-09-12 | 2019-09-11 | Formulacija za uklanjanje kamenca za wc-e |
| HRP20221551TT HRP20221551T1 (hr) | 2018-09-12 | 2019-09-11 | FORMULACIJA ZA UKLANJANJE KAMENCA ZA WC-e |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT201800008545 | 2018-09-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3623455A1 true EP3623455A1 (fr) | 2020-03-18 |
| EP3623455B1 EP3623455B1 (fr) | 2022-12-07 |
Family
ID=64427078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19196827.0A Active EP3623455B1 (fr) | 2018-09-12 | 2019-09-11 | Formulation détartrante pour toilettes |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3623455B1 (fr) |
| ES (1) | ES2934464T3 (fr) |
| HR (1) | HRP20221551T1 (fr) |
| HU (1) | HUE061204T2 (fr) |
| PL (1) | PL3623455T3 (fr) |
| RS (1) | RS63907B1 (fr) |
| SI (1) | SI3623455T1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2073233A (en) * | 1980-04-03 | 1981-10-14 | Arrow Chem Ltd | Cleaning compositions |
| EP0832964A1 (fr) * | 1996-09-19 | 1998-04-01 | The Procter & Gamble Company | Compositions de nettoyage liquides stables et épaisses |
| WO1999027066A1 (fr) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Compositions aqueuses de nettoyage en phase dispersee lamellaire |
-
2019
- 2019-09-11 PL PL19196827.0T patent/PL3623455T3/pl unknown
- 2019-09-11 HR HRP20221551TT patent/HRP20221551T1/hr unknown
- 2019-09-11 SI SI201930414T patent/SI3623455T1/sl unknown
- 2019-09-11 ES ES19196827T patent/ES2934464T3/es active Active
- 2019-09-11 EP EP19196827.0A patent/EP3623455B1/fr active Active
- 2019-09-11 RS RS20221184A patent/RS63907B1/sr unknown
- 2019-09-11 HU HUE19196827A patent/HUE061204T2/hu unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2073233A (en) * | 1980-04-03 | 1981-10-14 | Arrow Chem Ltd | Cleaning compositions |
| EP0832964A1 (fr) * | 1996-09-19 | 1998-04-01 | The Procter & Gamble Company | Compositions de nettoyage liquides stables et épaisses |
| WO1999027066A1 (fr) * | 1997-11-26 | 1999-06-03 | The Procter & Gamble Company | Compositions aqueuses de nettoyage en phase dispersee lamellaire |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3623455B1 (fr) | 2022-12-07 |
| ES2934464T3 (es) | 2023-02-22 |
| HUE061204T2 (hu) | 2023-05-28 |
| PL3623455T3 (pl) | 2023-04-11 |
| HRP20221551T1 (hr) | 2023-02-17 |
| RS63907B1 (sr) | 2023-02-28 |
| SI3623455T1 (sl) | 2023-04-28 |
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