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
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
• • 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
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D1/66—Non-ionic compounds
  • C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
• • 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
  • C11D3/50—Perfumes

Definitions

• the present invention refers to a detergent and/or perfuming and or sanitizing adhesive composition.
• Adhesive detergent and/or perfuming and/or sanitizing compositions are known and subject-matter of wide commercialization, capable to adhere to the walls of the WC without the aid of any external device, specifically without the need to be inserted into conventional plastic cages.
• the existing formulations according to the state of the art are mainly based on the use of a group of components, the alcohol ethoxylates, known as having adhesive properties.
• the alcohol ethoxylates are non-ionic surfactants which, in order to have also adhesive properties, they must be characterized by a long hydrocarbon chain and by a high degree of ethoxylation.
• adhesive compositions which can be directly applied to sanitary objects without the aid of any support and/or container, based on alcohol ethoxylates, are described in EP1086199 and EP1325103 .
• alcohol ethoxylates must be alcohols with a high ethoxylation, present in high concentration, as also required for every non-ionic surfactant acting as adhesion promoter. These raw materials usually present the feature to be solid at room temperature.
• the gel formulations are rich in solvent (usually water), said solvent being necessary right for structuring the surfactants in a gel phase.
• solvent usually water
• the gel formulations once exposed to air, if not kept under highly controlled conditions of temperature and relative moisture, tend to lose the solvent more or less quickly. The natural loss of water of such a type of formulations implies a dramatic change of appearance of the gel.
• the Applicant has now surprisingly found an adhesive detergent and/or perfuming and/or sanitizing composition, in gel form, which overcomes the drawbacks of the state of the art.
• the main purpose of the present invention is therefore that of finding an adhesive detergent and/or perfuming and/or sanitizing composition, in gel form, which can be directly applied to the surface of interest, adhering thereto without the aid of means and/or containers, presenting also both an optimal adhesion to the surface and length, also in the presence of a short frequency of flushings.
• a further purpose of the present invention is also that of identifying an adhesive detergent and/or perfuming and/or sanitizing composition, in gel form, which, when applied to the wall of the sanitary object and subjected to the process of evaporation of the solvent, maintains a transparent look, the closest as possible to that of the originally applied product, also with an unquestionable aesthetic advantage for the user.
• a purpose of the present invention is also that of achieving an adhesive composition which, along with the optimal adhesiveness and length, presents a lower stiffness which makes it easier to be extruded by means of application systems through which it is applied to the wall to which it exerts its action.
• the subject-matter of the present invention is therefore an adhesive detergent and/or perfuming and/or sanitizing composition, in gel form, directly applicable to the surface of interest, adhering thereto without the aid of a support and/or container, and from which, if subjected to the action of water, is removed only after a great number of water flushings, said composition being characterized by comprising
• the adhesive composition, in gel, according to the present invention provides a viscosity, measured through a plate-plate system viscometer, with a diameter of the plate of 10 mm, applying a constant shear rate of 2,62 s -1 at 20°C, comprised between 100 and 1500 Pa*s, preferably comprised between 500 and 1200 Pa*s and still more preferably equal to 1000 Pa*s.
• the adhesion promoter in the adhesive composition according to the present invention is ethoxylated hydrogenated castor oil.
• the ethoxylated hydrogenated castor oil is a mixture mainly composed of esters (ethoxylated) of glycerol trihydroxystearate. To better identify the nature of the mixture constituting castor oil, it is reported the average composition of residues of fatty acids present in the castor oil seeds Acid Percentage Ricinoleic 95-85% Oleic 6-2% Linoleic 5-1% Linolenic 1-0.5% Stearic 1-0.5% Palmitic 1-0.5% Dihydroxystearic 0.5-0.3% Others 0.5-0.2%
• the preponderant residue of fatty acid R1, R2 and R3 present in castor oil derives thus from the ricinoleic acid. and after hydrogenation the main component of castor oil is
• the chains R1, R2 and R3 in the mixture are residues of monohydroxystearic acid in a percentage from 85 to 95% and, with the ethoxylation phase, the OH groups present in the chains R1, R2, R3 are ethoxylated.
• the phase of ethoxylation provides the achieving of addition products of 20-80 moles of ethylene oxide to hydrogenated castor oil, preferably the adhesion promoter according to the present invention is hydrogenated castor oil, alkoxylated with 40 EO units.
• the adhesive composition according to the present invention comprises the adhesion promoter in amount ranging from 20 to 60% by weight, preferably ranging from 38 to 45% and still more preferably it is equal to 40% by weight, with respect to the total weight of the adhesive composition.
• the adhesive composition according to the present invention comprises as component ii) a thickening agent.
• a thickening agent is Xanthan Gum.
• the amount of thickening agent ranges from 0.05 to 0.8% by weight, preferably ranging from 0.1 to 0.3% by weight and still more preferably is equal to 0.2% by weight, with respect to the total weight of the adhesive composition.
• the preferred thickening agent is Xanthan Gum, in amount equal to 0.2% by weight with respect to the total weight of the detergent composition. It allows indeed to optimize the features of the adhesive composition according to the present invention, in particular giving the gel the right degree of viscoelasticity which allows its proper dispensing during use.
• the adhesive composition according to the present invention comprises as component iii) a perfuming agent.
• the perfuming agent is present in amount ranging from 2 to 10% by weight, preferably ranging from 4 to 8% by weight and still more preferably it is equal to 6% by weight, with respect to the total weight of the adhesive composition.
• detergent/foaming agents as component (iv) of the adhesive composition according to the present invention, is provided for example in case of adhesive compositions for WC, washbasins, dishwashing machines and washing machines, and said detergent/foaming agent can be preferably selected from two non-ionic surfactants and precisely from isotridecanol ethoxylate with 30 moles EO and a mixture of oleyl and cetyl alcohol ethoxylates with 55 moles EO, still more preferably it is a mixture of cetyl and oleyl alcohol ethoxylates with 55 moles EO, usually it is a mixture of cetyl (C16) and oleyl (C18) alcohol ethoxylates with 55 moles EO, wherein the alcohols C16/C18, ethoxylated with 55 moles of EO, are in a weight ratio equal to 20:80.
• the adhesive composition according to the present invention in the applications which provide component iv), comprises the detergent/foaming agent in amount ranging from 15 to 60% by weight, preferably from 25 to 55% by weight, with respect to the total weight of the adhesive composition.
• isotridecanol ethoxylate with 30 moles EO is present in amount equal to 8% by weight with respect to the total weight of the adhesive composition, whereas the mixture of cetyl and oleyl alcohol ethoxylates with 55 moles EO is present in amount equal to 4% by weight with respect to the total weight of the adhesive composition.
• the own specific non-ionic surfactants of the adhesive composition according to the present invention confer a good foaming capability to the adhesive composition, obtaining a good cleaning effect and a good foam profile, without damaging the gel structure.
• anionic surfactants which however allows a good foaming capability, causes a strong instability of the adhesive composition structure, which leads to collapse of the gel in a very short time (often instantaneous).
• the cationic surfactants which, with respect to the anionic surfactants, allow to maintain the structure of the adhesive composition, set instead the foam profile to zero.
• the adhesive composition according to the present invention provides the presence of water, in amount ranging from 20 to 70% by weight, preferably from 35 to 60% by weight, with respect to the total weight of the adhesive composition.
• the adhesive composition according to the present invention provides an adhesion promoter/water weight ratio ranging from 20:80 to 70:30, preferably equal to 40:60.
• the adhesive composition, in gel, according to the present invention provides that said promoting agent/water ratio presents an optimal combination of features of transparency and adhesiveness.
• the adhesive composition according to the present invention may also provide colorants, as minority components, in order to confer a more pleasant appearance to the adhesive composition, and/or preservatives and/or sanitizing agents, selected from those commonly known to the skilled person in the art.
• the adhesive composition in gel according to the present invention preferably provides the following composition
• the adhesive composition in gel according to the present invention is composed 40% by weight of ethoxylated hydrogenated castor oil, 0.2% by weight of Xanthan Gum, 6% by weight of perfume, 4% by weight of the mixture of cetyl and oleyl alcohol ethoxylates with 55 moles and 49.8 % by weight of water. The percentages are all percentages by weight with respect to the total weight of the adhesive composition.
• a further subject-matter of the present invention is the use of said adhesive composition, in gel, as detergent and/or perfuming and/or sanitizing agent, by direct application to the surface of interest of sanitary objects, household appliances, walls, furniture, etc.
• a further subject-matter of the present invention is the process of application of said adhesive composition directly to the surface of interest, adhering thereto without the aid of means and/or containers.
• the process to obtain an adhesive composition in gel form according to the present invention comprises the following phases:
• the water temperature can be increased if the time of mixing is reduced.
• a further subject-matter of the present invention is therefore a process for the preparation of said adhesive detergent and/or perfuming and/or sanitizing composition in gel, comprising the following operating steps:
• the adhesive composition in gel according to the present invention can be applied in a form having a size of about 4 x 2 x 1 cm, making it not much visible inside the surface of interest to which it is applied, differently from the much more cumbersome products present in the state of the art.
• the size of the adhesive composition according to the present invention mainly depends on the length of the sanitizing efficacy to obtain.
• the adhesive composition according to the present invention having a weight of about 10 grams, is completely rinsed off only after about 90-130 washings, taking into account that the number of flushings necessary to the complete washout also depends on the geometry of the tablet and on the modes of flushing of water in the WC.
• the adhesive composition in gel according to the present invention applied to the wall of the WC, and subjected to a normal flushing cycle (about 12 rinses a day) presents thus an average length of about ten days.
• the composition can be provided with a support, such as for example a thermoformed plastic support from which the adhesive composition can be easily extruded by pressing the thumb, thanks to the characteristic of lower stiffness of the adhesive composition as above described.
• a further key advantage of the adhesive composition according to the present invention is represented by the fact that it is capable to maintain its aesthetic features under non-flushing operations for at least 2 days. Such a result is much relevant for the end-user who may often face situations in which the time range elapsing between one water flushing and the other is very broad, such as for example a single person, or a family leaving the main house empty for the weekend.
• the particular combination of components constituting the adhesive composition according to the present invention allows to obtain an end-product which, surprisingly, is capable to maintain the adhesiveness features for a long time and the gel aesthetic features also under conditions of short flushing, and presents an optimal rheology for the application of the product directly to the wall of the sanitary object.
• the adhesive compositions in gel according to the formulations reported in Table 1 are completely transparent and adhere firmly, when applied to the wall of the WC and subjected to a normal flushing cycle (about 12 rinses a day).
• the outer appearance and adhesiveness do not change not even under a non-flushing regimen longer than 2 days.
• the viscosity measured through a plate/plate system Haake viscometer, with a plate having a diameter of 10 mm, a shear gradient of 2,62 Hertz, at 20°C is equal to 1000 Pa*S.
• the perfume used in the present examples is PURPLE LAVENDER 299469 ex Firmenich, but it can be substituted with any other perfume suited to the purpose.
• Rhodamine B Rhodamine B, which can be however substituted with any other colorant suited to the purpose.
• the adhesive compositions according to the comparative examples 7 and 8 which provide respectively an anionic and a cationic surfactant as detergents/foaming agents, present a deformation without flushing substantially immediate and in the case of the cationic surfactant a foam capability almost absent.
• composition according to the state of the art presents a weight loss equal to 0.23 grams per hour (it should be observed that in this case the condition of absence of perfume is not possible, see above).

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• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (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)
• Detergent Compositions (AREA)
• Adhesives Or Adhesive Processes (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (2)

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Family Applications (1)

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Cited By (4)

Citations (5)

Family Cites Families (3)

• 2013
  • 2013-09-19 IT IT001545A patent/ITMI20131545A1/it unknown
• 2014
  • 2014-09-18 EP EP14185358.0A patent/EP2851416B1/de not_active Not-in-force
  • 2014-09-18 RS RS20190416A patent/RS58614B1/sr unknown
• 2019
  • 2019-03-27 HR HRP20190592TT patent/HRP20190592T1/hr unknown

Patent Citations (5)

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