EP2072614A1 - Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation - Google Patents

Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation Download PDF

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Publication number
EP2072614A1
EP2072614A1 EP07425793A EP07425793A EP2072614A1 EP 2072614 A1 EP2072614 A1 EP 2072614A1 EP 07425793 A EP07425793 A EP 07425793A EP 07425793 A EP07425793 A EP 07425793A EP 2072614 A1 EP2072614 A1 EP 2072614A1
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EP
European Patent Office
Prior art keywords
product
weight
product according
shape
scale
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.)
Withdrawn
Application number
EP07425793A
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German (de)
English (en)
Inventor
Giancarlo Gazzaniga
Laura Ruffina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deoflor SpA
Original Assignee
Deoflor SpA
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Filing date
Publication date
Application filed by Deoflor SpA filed Critical Deoflor SpA
Priority to EP07425793A priority Critical patent/EP2072614A1/fr
Publication of EP2072614A1 publication Critical patent/EP2072614A1/fr
Withdrawn legal-status Critical Current

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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
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0056—Lavatory cleansing blocks
    • 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
    • C11D3/349—Organic compounds containing sulfur additionally containing nitrogen atoms, e.g. nitro, nitroso, amino, imino, nitrilo, nitrile groups containing compounds or their derivatives or thio urea

Definitions

  • the present invention relates to a scale-removing and anti-algae product, to a use thereof for treating sanitary fixtures, and to a process for preparing such product.
  • scale is used to reference deposits of calcium carbonate (CaCO 3 ) which form solid accumulations on the surfaces of metals, ceramic or plastics in contact with water or humidity and shorten the life and durability of the sanitary fixtures.
  • CaCO 3 calcium carbonate
  • the formation of scale in addition to being unsightly, leads to a shorter life of the sanitary fixtures and moreover is unsanitary, since scale deposits constitute a medium for the formation of bacterial colonies.
  • a second category of compounds utilizes active ingredients based on mixtures of inorganic and organic acids, which are less aggressive than the preceding ones.
  • these acids mention can be made of citric acid, maleic acid, glycolic acid and tartaric acid, alone or in combination with sulfuric acid or sulfamic acid.
  • the action of these products is applied on the basis of a reduction of pH, which produces an environment which is unfavorable to the formation of scale.
  • These products are usually in the form of liquids or tablets of compressed powders (tabs) to be dissolved in water.
  • these products are less aggressive than those based on hydrochloric or hydrofluoric acid, they are however less effective, since their liquid formulation does not allow the application of the scale-removing action in a manner which is prolonged over time.
  • Solid and liquid foaming agents for sanitary fixtures are also commercially available which have a preventive action and are based on inorganic acids, such as for example citric acid, or citric acid/sodium citrate buffer agents or phosphonates, which are however scarcely effective, with a bland scale-removing action.
  • Chlorine-based products are very widespread for treatment against algae, but resorting to these toxic and polluting substances makes the products scarcely safe for the consumer and scarcely environmentally compatible.
  • the aim of the present invention is to provide a product which has a superior scale-removing action than known anti-scale products and at the same time acts against the formation of algae.
  • an object of the invention is to provide a product which also has a detergent, sanitizing, fragrancing and coloring effect.
  • Another object of the invention is to provide a product which is capable of preventing the deterioration of sanitary fixtures.
  • Another object of the invention is to provide a product which is characterized by an action which is both preventive and curative and is prolonged over time.
  • Another object of the invention is to provide a product which is not aggressive with respect to the materials of which sanitary fixtures are made and is not toxic for the consumer.
  • Still another object of the invention is to provide a process which is simple to carry out and allows to prepare the previously cited product.
  • a solid product with a scale-removing and anti-algae effect for sanitary fixtures which comprises sulfamic acid, one or more surfactants, and one or more binders.
  • the aim and objects of the invention are achieved also by a use of the product according to the invention as a scale-removing and anti-algae product for treating sanitary fixtures.
  • the scale-removing and anti-algae product in solid form described here utilizes as an active principle a particularly active inorganic acid such as sulfamic acid in addition to one or more surfactants, which enhance the effect of sulfamic acid, and one or more binders, which are designed to amalgamate the components of the product in order to facilitate production procedures.
  • a particularly active inorganic acid such as sulfamic acid in addition to one or more surfactants, which enhance the effect of sulfamic acid, and one or more binders, which are designed to amalgamate the components of the product in order to facilitate production procedures.
  • the sulfamic acid can be in an amount from 1% to 80% by weight of the product. More preferably, the sulfamic acid can be in an amount from 10% to 30% by weight on the weight of the product. For example, the sulfamic acid can be in an amount equal to 19% by weight.
  • the scale-removing and anti-algae product in solid form can assume different forms, which make it suitable for use for treating sanitary fixtures.
  • the product can assume the form of a rimblock, cistern block or effervescent block.
  • rimblock or "wc rimblock” is used to reference a solid product with a square geometric shape which is inserted in an appropriate basket with a handle which can hang from the rim of a sanitary fixture.
  • cistern block or “cistern wc block” designates a solid product, for example having a cubic or round geometric shape, which can be wrapped in a water-soluble film and introduced in the cistern of sanitary fixtures.
  • effervescent block identifies a solid product, which has for example a cubic or round geometric shape, weighs approximately 20-25 g, and is characterized by the ability to dissolve rapidly due to its formulation, which comprises one or more effervescent agents.
  • the one or more surfactants can be selected from the group constituted by an anionic surfactant, a non-ionic surfactant, and an amphoteric surfactant.
  • the anionic surfactant can be in an amount from 2% to 70% by weight on the weight of the product
  • the non-ionic surfactant can be in an amount from 1% to 40% by weight on the weight of the product
  • the amphoteric surfactant can be in an amount from 1% to 20% by weight on the weight of the product.
  • anionic surfactants have a detergent effect for the enamel of the sanitary fixtures and a foam-generating effect which corresponds to the amount with which the product according to the invention is formulated.
  • anionic surfactants can be surfactants of the group constituted by a sodium alkyl aryl sulfonate, a sulfonated sodium paraffin, a sodium alkyl sulfate, a sulfonated alpha-olefin, and mixtures thereof.
  • the sodium aryl alkyl sulfonate is sodium dodecyl benzene sulfonate.
  • the sodium alkyl sulfate can be sodium lauryl ethoxy sulfate.
  • Non-ionic surfactants are used mostly for their binding action on the different components of the product, thus giving the finished product consistency and hardness. They further have a moderate foaming effect.
  • the non-ionic surfactant can be selected from the group constituted by a fatty acid alkanolamide, coconut monoethanolamide, coconut diethanolamide, an ethoxylated fatty alcohol, a polyalkylene glycol with a molecular weight from 200 to 6000, and mixtures thereof.
  • amphoteric surfactants Another type of surfactants that can be part of the formulation of the product according to the invention is constituted by amphoteric surfactants.
  • Non-limiting examples of this class of surfactants are sultaine, lauramidopropyl betaine, an imidazoline, an N-alkyl amino acid, alkyl amino dipropionate and a derivative of betaine.
  • the one or more binders can be present in a quantity from 0.1 % to 10% by weight on the weight of the product.
  • the binders can be in a quantity from 0.5% to 2% by weight on the weight of the product.
  • the one or more binders can be selected from the group constituted by glycerin, propylene glycol, a polyethylene glycol, water, a wax, coconut monoethanolamide, a cetyl stearyl alcohol and a stearyl alcohol. The role of the binders is to provide a lubricating action and amalgamate the components of the product in times which are acceptable for industrial production.
  • the product according to the invention may further comprise other components in order to give the finished product particular properties, such as color, fragrance, effervescence and others.
  • the product according to the invention can further comprise one or more additives selected from the group constituted by a color, a fragrance, an odor neutralizing agent, a sequestrant, a brightener, an effervescence generator, a disinfectant, an enzyme, a whitening agent, an anti-adhesion agent, a neutral salt, and mixtures thereof.
  • the color can be in a quantity from 0.0001% to 1% by weight on the weight of the product when the product is in the form of rimblocks and from 1% to 10%, preferably 2% to 5%, by weight on the weight of the product when the product is in the form of cistern blocks which color the water;
  • the fragrance can be present in a quantity from 1% to 20%, preferably 2% to 8%, by weight on the weight of the product;
  • the odor neutralizing agent can be in a quantity from 0.1% to 3%, preferably 0.3% to 1%, by weight on the weight of the product;
  • the sequestrant can be in a quantity from 0.5% to 5%, preferably 1% to 3%, by weight on the weight of the product;
  • the effervescence generator can be in a quantity from 5% to 40%, preferably 15% to 30%, by weight on the weight of the product.
  • sequestrant is used to reference a product which has a metal chelating action, which is capable of sequestering/locking the metals in a solution.
  • the term "brightener” is used to reference a product which has a scale-removing action capable of removing opaqueness from surfaces, for example by removing deposits of scale, thus improving the aesthetic appearance of the sanitary fixtures.
  • the effervescence generator can be selected from the group constituted by sodium bicarbonate, citric acid, tartaric acid, and malic acid.
  • the effervescence generator can be sodium bicarbonate or citric acid, thanks to their low cost.
  • the product may of course further comprise also one or more neutral salts, such as for example sodium sulfate or sodium chloride, or in any case other substances usually used with a function of an inert filler in preparing products for treating sanitary fixtures.
  • neutral salts such as for example sodium sulfate or sodium chloride
  • the product according to the invention applies an anti-algae action, which is further facilitated by the pH with which such product is formulated.
  • the product can have a pH ranging from 1.5 to 4.
  • the product can have a pH ranging from 2 to 4, since a value of acidity of more than 2 makes the product less dangerous and allows it not to be classified as "corrosive" according to the indications of annex VI of Directive 67/548/EEC.
  • the product according to the invention can be used as scale-removing and anti-algae agent in treating sanitary fixtures.
  • sanitary fixtures designates toilet bowls and cisterns.
  • the product according to the invention can be prepared by means of a particular production process, in which the sulfamic acid, the surfactants and the binders are processed in the form of a mix, which is then given the selected shape and solidified by cooling.
  • the sulfamic acid, the surfactants and optionally the additives are mixed until a uniform mix is obtained.
  • a geometric shape is imparted to the mix thus prepared for example by means of an extruder which has an outlet whose geometry (shape) is such as to give the specific shape to the product.
  • This extrusion procedure uses one or more binders which can be selected from the group constituted by glycerin, propylene glycol, polyethylene glycol and water.
  • another procedure adapted to impart to the mix a specific shape can consist in hot-mixing the components of the product and pouring the liquefied hot mix into appropriate molds, whose shape is such as to give the product the selected shape (casting).
  • This casting uses binders which can be selected from the group constituted by a wax, coconut monoethanolamide, a stearyl alcohol and a stearic alcohol.
  • the binders for casting can be replaced with other equivalent compounds which melt at temperatures which are compatible with the process according to the invention.
  • Cooling can consist simply in exposing the mix extruded or poured into the molds to ambient temperature, in particular in the case of the extrusion procedure.
  • cooling can consist of a procedure in which the temperature of the product is lowered actively, for example by refrigeration or by applying a cold air stream, particularly in the case of the casting procedure, during which the mixture of the components of the product has been heated before being poured into the molds.
  • the process according to the invention is particularly versatile, since it is suitable to prepare all forms of the product, including the forms of rimblock, cistern block and effervescent block.
  • the extruder can be equipped with an outlet whose shape is adapted to give the selected shape to the product; for example, the outlet of the extruder can have a shape which is adapted to give a shape of rimblock, cistern block or effervescent block.
  • the final form of the product can be determined by the geometric shape of the mold into which the mix is poured; for example, the mold can have a shape which is adapted to give the form of rimblock, block or effervescent block.
  • the process according to the invention can comprise the additional passage of packaging the solid product in a blister or water-soluble film.
  • the product in cistern block form T2 was found to be superior to the cistern block F4 and showed no abnormal effects during the test, such as losses of material, maintaining a constant dissolving rate.
  • the cistern block T2 was used to prepare 100 g of aqueous solution with a concentration of 2.4 g/l.
  • a control sample with the cistern block F4 was prepared. Glasses with scale deposits were immersed in the two solutions for periods equal to 72 hours and 15 days and then were extracted from the solutions and rinsed.
  • Figures 1a-1f after 72 hours the solution related to the cistern block T2 has removed almost completely scale in the upper part of the glass ( Figure 1d ) and after 15 days it had cleaned it completely ( Figure 1f ).
  • the control sample F4 achieves inferior results, leaving the glasses scaled with scale ( Figures 1c and 1e ).
  • the product according to the invention is capable of preventing the deterioration of sanitary fixtures, since the action of the sulfamic acid active ingredient prevents the deposits of scale and the algae from damaging the components of the sanitary fixtures.
  • the product according to the invention is capable of applying an action which is prolonged over time due to the solid formulation with sulfamic acid.
  • the product according to the invention can be provided in forms which are adapted for treating the different types of sanitary fixtures, since it can be prepared in the form of rimblocks, cistern blocks or effervescent blocks.
  • the product according to the invention is also not aggressive for the materials of which sanitary fixtures are made, is not toxic for the consumer and is environmentally compatible, since its components are in such quantities that they are not toxic and the characteristic pH of the product is such that the product is not corrosive.
  • the process according to the invention is simple to perform and low in cost, since it can use extrusion technology, which further makes the process suitable for preparing the product according to the invention in its different forms.

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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)
EP07425793A 2007-12-17 2007-12-17 Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation Withdrawn EP2072614A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425793A EP2072614A1 (fr) 2007-12-17 2007-12-17 Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425793A EP2072614A1 (fr) 2007-12-17 2007-12-17 Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation

Publications (1)

Publication Number Publication Date
EP2072614A1 true EP2072614A1 (fr) 2009-06-24

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EP07425793A Withdrawn EP2072614A1 (fr) 2007-12-17 2007-12-17 Produit solide avec effet détartrant et anti-algues pour installations sanitaires et son processus de préparation

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EP (1) EP2072614A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019052842A1 (fr) * 2017-09-14 2019-03-21 Unilever N.V. Unité de nettoyage de toilettes façonnée
US11214763B2 (en) 2018-01-26 2022-01-04 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a carrier
US11377628B2 (en) 2018-01-26 2022-07-05 Ecolab Usa Inc. Solidifying liquid anionic surfactants
US11655436B2 (en) 2018-01-26 2023-05-23 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a binder and optional carrier
US20230193154A1 (en) * 2020-05-14 2023-06-22 Reckitt Benckiser Finish B.V. Solid composition

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050577A5 (en) * 1969-06-18 1971-04-02 Purodor Labo Chimie Appl Comp for preservation deodorisation and - disinfection of sanitary objects esp in the wc
DE3209333A1 (de) * 1982-03-15 1983-09-15 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung einer schwimmfaehigen saeuretablette fuer die wc-reinigung
EP0167085A2 (fr) * 1984-07-02 1986-01-08 Henkel Kommanditgesellschaft auf Aktien Agent de nettoyage des toilettes
WO2001010997A1 (fr) * 1999-08-07 2001-02-15 Henkel Kommanditgesellschaft Auf Aktien Corps moules detergents
US20020058605A1 (en) * 2000-09-15 2002-05-16 Erik Schmidt Cleaning tablets
US20020132746A1 (en) * 2001-01-18 2002-09-19 Desenna Richard A. Toilet bowl cleaner effervescent tablet
US20020193278A1 (en) * 2001-03-26 2002-12-19 Laura Cermenati Composition for cleaning a surface
DE10163650A1 (de) * 2001-12-21 2003-07-03 Seifenfabrik Budich Gmbh Sanitär-Reinigungsmittel
DE10236227A1 (de) * 2002-08-07 2004-02-26 Buck-Chemie Gmbh Reinigungs- und/oder Entkalkungstablette für harte Oberflächen mit diskreten Farbzentren
US20050130863A1 (en) * 2002-01-18 2005-06-16 Adrian Blagg Dilutable cleaning compositions and their uses
WO2007148053A1 (fr) * 2006-06-20 2007-12-27 Reckitt Benckiser Inc. Blocs de traitement pleins améliorés pour appareils sanitaires

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2050577A5 (en) * 1969-06-18 1971-04-02 Purodor Labo Chimie Appl Comp for preservation deodorisation and - disinfection of sanitary objects esp in the wc
DE3209333A1 (de) * 1982-03-15 1983-09-15 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung einer schwimmfaehigen saeuretablette fuer die wc-reinigung
EP0167085A2 (fr) * 1984-07-02 1986-01-08 Henkel Kommanditgesellschaft auf Aktien Agent de nettoyage des toilettes
WO2001010997A1 (fr) * 1999-08-07 2001-02-15 Henkel Kommanditgesellschaft Auf Aktien Corps moules detergents
US20020058605A1 (en) * 2000-09-15 2002-05-16 Erik Schmidt Cleaning tablets
US20020132746A1 (en) * 2001-01-18 2002-09-19 Desenna Richard A. Toilet bowl cleaner effervescent tablet
US20020193278A1 (en) * 2001-03-26 2002-12-19 Laura Cermenati Composition for cleaning a surface
DE10163650A1 (de) * 2001-12-21 2003-07-03 Seifenfabrik Budich Gmbh Sanitär-Reinigungsmittel
US20050130863A1 (en) * 2002-01-18 2005-06-16 Adrian Blagg Dilutable cleaning compositions and their uses
DE10236227A1 (de) * 2002-08-07 2004-02-26 Buck-Chemie Gmbh Reinigungs- und/oder Entkalkungstablette für harte Oberflächen mit diskreten Farbzentren
WO2007148053A1 (fr) * 2006-06-20 2007-12-27 Reckitt Benckiser Inc. Blocs de traitement pleins améliorés pour appareils sanitaires

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019052842A1 (fr) * 2017-09-14 2019-03-21 Unilever N.V. Unité de nettoyage de toilettes façonnée
US11214763B2 (en) 2018-01-26 2022-01-04 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a carrier
US11377628B2 (en) 2018-01-26 2022-07-05 Ecolab Usa Inc. Solidifying liquid anionic surfactants
US11655436B2 (en) 2018-01-26 2023-05-23 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a binder and optional carrier
US11834628B2 (en) 2018-01-26 2023-12-05 Ecolab Usa Inc. Solidifying liquid anionic surfactants
US11976255B2 (en) 2018-01-26 2024-05-07 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a binder and optional carrier
US12006488B2 (en) 2018-01-26 2024-06-11 Ecolab Usa Inc. Solidifying liquid amine oxide, betaine, and/or sultaine surfactants with a carrier
US20230193154A1 (en) * 2020-05-14 2023-06-22 Reckitt Benckiser Finish B.V. Solid composition

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