WO2023238095A1 - High viscosity silicone-based water-repellent/release coating for surfaces, preferably of a bathroom and toilet, and associated application method - Google Patents

High viscosity silicone-based water-repellent/release coating for surfaces, preferably of a bathroom and toilet, and associated application method Download PDF

Info

Publication number
WO2023238095A1
WO2023238095A1 PCT/IB2023/055972 IB2023055972W WO2023238095A1 WO 2023238095 A1 WO2023238095 A1 WO 2023238095A1 IB 2023055972 W IB2023055972 W IB 2023055972W WO 2023238095 A1 WO2023238095 A1 WO 2023238095A1
Authority
WO
WIPO (PCT)
Prior art keywords
repellent
spray
water
release coating
propellant
Prior art date
Application number
PCT/IB2023/055972
Other languages
French (fr)
Inventor
Massimo SIMONATO
Original Assignee
Simonato Massimo
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Simonato Massimo filed Critical Simonato Massimo
Publication of WO2023238095A1 publication Critical patent/WO2023238095A1/en

Links

Classifications

    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/16—Antifouling paints; Underwater paints
    • C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
    • C09D5/1662—Synthetic film-forming substance
    • C09D5/1675—Polyorganosiloxane-containing compositions
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/49—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes
    • C04B41/4905—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon
    • C04B41/495—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Organo-clay compounds; Organo-silicates, i.e. ortho- or polysilicic acid esters ; Organo-phosphorus compounds; Organo-inorganic complexes containing silicon applied to the substrate as oligomers or polymers
    • C04B41/4961—Polyorganosiloxanes, i.e. polymers with a Si-O-Si-O-chain; "silicones"
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/82—Coating or impregnation with organic materials
    • C04B41/84—Compounds having one or more carbon-to-metal of carbon-to-silicon linkages
    • 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
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/008—Temporary coatings
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells

Definitions

  • the present invention relates to a high-viscosity silicone-based coating adapted to temporarily cover the surface of, for example, bathrooms and toilets, in order to reduce water consumption and cleaning times of the sanitary ware.
  • the invention also relates to a spray can containing therein at least the above- mentioned high-viscosity silicone and a propellant.
  • the method relates to the method of applying the aforesaid water- repellent/release coating.
  • this material is mainly composed of silane (SiH4), siloxane (siloxane, H3Si-(OSiH2)n-OSiH3) and a small amount of chelate, with the silane and siloxane containing 62-72% of silicon.
  • a repellent coating may be formed from such formulations on the substrate surfaces by drying the formulation on the surface to substantially remove the solvent and to form a bonded layer on the surface with the lubricant firmly adhered to the bonded layer.
  • the formulations can be applied to surfaces made of ceramics, glass, metals, alloys, composites, polymers or combinations thereof such as ceramic or metal sanitary ware, surfaces of glass substrates including mirrors, windshields, windows, surfaces composed of one or more polymers, medical materials (devices such as ostomy devices), etc.
  • solvents may include a lower ketone, lower alcohol, lower ether, lower ester, lower halogenated solvent and combinations thereof
  • lubricants may include a silicone oil or mineral oil or vegetable oil or any combination thereof.
  • Other components may be included in the described formulations, such as a fragrance.
  • silicone which is the main component of the water-repellent coating that will be described shortly, is also present in the document just described, but only as a secondary component of the lubricant; the result is a water-repellent film that is indeed temporary, but whose effectiveness, given its low viscosity, is rather poor.
  • the water-repellent and release coating subject of the present invention is intended to overcome the problems described in the state of the art, as it can be used on all installed and manufactured ceramics, particularly on the inner surfaces of bathrooms and toilets; it can also be easily applied in any type of environment for both large structures and home use.
  • a coating with a release effect can also be used on the inner surfaces of moulds, particularly for moulding plastics, in order to facilitate the release of the moulded part from the mould itself.
  • the main component of the coating is a high-viscosity single-component silicone and the best application method is by spray can.
  • the diluting action is thereby provided not only by the solvent used to dilute the silicone (e.g. alkanes, cycloalkanes or the like), but also by the propellant (liquefied hydrocarbons such as butane propane, dimethyl ether, etc., or even compressed gases such as CO2 and N2...) present in the spray can.
  • the solvent used to dilute the silicone e.g. alkanes, cycloalkanes or the like
  • propellant liquefied hydrocarbons such as butane propane, dimethyl ether, etc., or even compressed gases such as CO2 and N2
  • High-viscosity silicone is a rubbery material that has an advantageous tendency to self-repair and level even in spots where there may have been some small mechanical removals.
  • silicone is a polymer that contains a silicon atom combined with carbon, hydrogen and oxygen; sometimes other complementary groups may also be added.
  • POLYDIMETHYL SILOXANE i.e. the silicone oil used in this coating, where the silicon-bonded groups are METHYLS.
  • the number n describes the length of the polymer chain (or the degree of polymerisation). As n increases, the viscosity of the product increases from 0.65 cSt (centiStokes) or mm 2 /s to over 20,000,000 cSt or mm 2 /s.
  • the viscosity value of the POLYDIMETHYL SILOXANE silicone, or mixture of silicones used for this invention is at least 500,000 cSt (centiStokes) or mm 2 /s, preferably above 20,000,000 cSt or mm 2 /s.
  • a hydrophobic (water-repellent), coloured and transparent film which has a release/anti-adhesive effect against faeces and liquids, is deposited on the surface of the toilet (or other similar surfaces). More specifically, in the case of liquids, the droplets tend to slide directly into the bottom of the toilet, thus not drying out and releasing unpleasant smells; in the case of faeces, cleaning, even after a long time, is mechanically facilitated and therefore easier and faster.
  • the application by spray can is the most effective and performing, but the product can also be used in other ways, such as spraying, brushing or dabbing.
  • the product therefore requires only one application; the surface is active and functional after about 5-10 minutes.
  • the deposited film is not permanent, as it can be easily removed by mechanical action or using detergents.
  • the use of such a product allows to reduce consumption of water and aggressive detergents, as well as reduce the time for cleaning.
  • the invention also relates to the spray can which comprises therein (filled with) a first predetermined amount of POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm 2 /s, preferably higher than 20,000,000 mm 2 /s, and a second predetermined amount of propellant.
  • the spray can thus constituted is advantageously configured to allow a water-repellent/release coating according to the invention to be applied to an inner surface of a toilet or any other type of surface of any element.
  • the propellant is a liquefied hydrocarbon, such as butane propane and dimethyl ether, or alternatively a compressed gas, such as carbon dioxide and diatomic nitrogen.
  • a liquefied hydrocarbon such as butane propane and dimethyl ether
  • a compressed gas such as carbon dioxide and diatomic nitrogen.
  • a third predetermined amount of solvent is also placed inside the spray can of the invention.
  • this solvent is selected from alkanes, cycloalkanes or the like.
  • the composition within the spray can is the following:
  • the invention also relates to the method of applying the water- repellent/release coating of the invention.
  • This method provides in particular the following steps: a) thoroughly cleaning the surface onto which said water-repellent/release coating is to be applied; b) applying the water-repellent/release coating (3) onto the surface using a spray can containing POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm 2 /s, preferably higher than 20,000,000 mm 2 /s, and a propellant, so that the solvent action is also provided by the propellant of the spray can itself; c) waiting for at least five minutes before using said surface to allow the dilution solvents present in said silicone to evaporate, allowing the formation of said water-repellent/release coating.
  • the step a) is carried out using detergents in order to completely remove the residues present on said surface.
  • the step a) of cleaning the surface is followed by an additional step of drying and removing moisture from the surface with a dry cloth.

Abstract

Non-permanent water-repellent/release coating applicable to the inner surfaces of an element, in particular a toilet (1 ) or similar. Such a coating requires its main component to comprise a POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s.

Description

HIGH VISCOSITY SILICONE-BASED WATER-REPELLENT/RELEASE COATING FOR SURFACES, PREFERABLY OF A BATHROOM AND TOILET, AND ASSOCIATED APPLICATION METHOD.
DESCRIPTION
Field of application of the Invention Patent
The present invention relates to a high-viscosity silicone-based coating adapted to temporarily cover the surface of, for example, bathrooms and toilets, in order to reduce water consumption and cleaning times of the sanitary ware.
The invention also relates to a spray can containing therein at least the above- mentioned high-viscosity silicone and a propellant.
Furthermore, the method relates to the method of applying the aforesaid water- repellent/release coating.
Background
Usually, dirt (faeces and urine drops) that is not immediately removed from toilet surfaces tends to dry out and significantly adhere to those surfaces; over time, removal becomes difficult because water cannot penetrate the interface between the ceramic and the dehydrated solid dirt. This makes the cleaning operation more time-consuming and requiring more water and detergents, with the inevitable environmental consequences.
One of the possible solutions to this problem is to coat the inner surface of sanitary ware (bathrooms and toilets) with a water-repellent film in order to have dirt slide down the drain more effectively, preventing waste from sticking to the surface encrusting it, thus saving water and time for cleaning operations. There are, in the prior art, several methods for applying such a water-repellent film: for example, one method is known wherein the surface of a ceramic product is coated with siloxane resins containing an alkyl fluoride group in order to lower the surface tension of the ceramic. However, such applications can only be carried out at an industrial level during the production of the artefact, as described, by way of example, in the South Korean Invention Patent KR20130106580, filed on 20/03/2012 in the name of PARK JUNG HO (KR) (Title: “Method for forming an inner coating layer of a urinal to save flushing water”), wherein the inner coating layer of the urinal adapted to reduce flushing water use comprises the following steps: selecting a urinal and washing mainly the inner surface thereof; polishing the inside of the urinal and removing contaminants using a polishing machine and polishing material; washing and drying the polishing material and contaminants from the polishing process; applying a coating material to the inside of the washed urinal and forming a hard coating layer; and drying the inside of the urinal formed with the coating layer.
Various materials can be used as a coating agent, but in the proposed invention this material is mainly composed of silane (SiH4), siloxane (siloxane, H3Si-(OSiH2)n-OSiH3) and a small amount of chelate, with the silane and siloxane containing 62-72% of silicon.
As already mentioned, this is an industrial process; the application is done by spraying or brushing, but once the curing operation is complete, the result will be that of a permanent coating, which inevitably loses its effectiveness over time.
There are also in the state of the art temporary applications, such as the SPOTLESS® spray produced and marketed by the US company SPOTLESS MATERIALS INC. (cf. website https://spotlessmaterials.com/products/toilet- coatinq); the spray in question is applied to the inner surface of the toilet, instantly creating a nano-coating that acts like a tiny sponge that retains the liquid lubricant. The super-slippery layer reduces the adhesion of sticky liquid, mineral or solid deposits to the surface, facilitating cleaning operations. The lubricating layer is degraded after a few washes, actually making the applied nano-film temporary.
In the relative reference (European) Patent EP3966291 , filed on 14/09/2020 (with US priority US201962900207P dated 13/09/2019; Title: “Formulations and processes to generate repellent surfaces”) it is disclosed a formulation for the preparation of repellent coatings on substrate surfaces including: (i) one or more reactive components that can form a bonded layer on a surface wherein the bonded layer comprises a matrix of compounds, each compound having one end bonded to a surface and an opposite end extending away from the surface; (ii) an optional catalyst; (iii) a solvent; and (iv) a lubricant. A repellent coating may be formed from such formulations on the substrate surfaces by drying the formulation on the surface to substantially remove the solvent and to form a bonded layer on the surface with the lubricant firmly adhered to the bonded layer. The formulations can be applied to surfaces made of ceramics, glass, metals, alloys, composites, polymers or combinations thereof such as ceramic or metal sanitary ware, surfaces of glass substrates including mirrors, windshields, windows, surfaces composed of one or more polymers, medical materials (devices such as ostomy devices), etc. Specifically, solvents may include a lower ketone, lower alcohol, lower ether, lower ester, lower halogenated solvent and combinations thereof, while lubricants may include a silicone oil or mineral oil or vegetable oil or any combination thereof. Other components may be included in the described formulations, such as a fragrance.
As it can be seen, silicone, which is the main component of the water-repellent coating that will be described shortly, is also present in the document just described, but only as a secondary component of the lubricant; the result is a water-repellent film that is indeed temporary, but whose effectiveness, given its low viscosity, is rather poor.
Summary of the Invention Patent
The water-repellent and release coating subject of the present invention is intended to overcome the problems described in the state of the art, as it can be used on all installed and manufactured ceramics, particularly on the inner surfaces of bathrooms and toilets; it can also be easily applied in any type of environment for both large structures and home use. In addition, such a coating with a release effect can also be used on the inner surfaces of moulds, particularly for moulding plastics, in order to facilitate the release of the moulded part from the mould itself.
The main component of the coating is a high-viscosity single-component silicone and the best application method is by spray can. The diluting action is thereby provided not only by the solvent used to dilute the silicone (e.g. alkanes, cycloalkanes or the like), but also by the propellant (liquefied hydrocarbons such as butane propane, dimethyl ether, etc., or even compressed gases such as CO2 and N2...) present in the spray can.
High-viscosity silicone is a rubbery material that has an advantageous tendency to self-repair and level even in spots where there may have been some small mechanical removals. Specifically, silicone is a polymer that contains a silicon atom combined with carbon, hydrogen and oxygen; sometimes other complementary groups may also be added.
Figure imgf000005_0001
In the above-reported figure, POLYDIMETHYL SILOXANE, i.e. the silicone oil used in this coating, where the silicon-bonded groups are METHYLS, is shown. The number n describes the length of the polymer chain (or the degree of polymerisation). As n increases, the viscosity of the product increases from 0.65 cSt (centiStokes) or mm2/s to over 20,000,000 cSt or mm2/s.
According to the invention, the viscosity value of the POLYDIMETHYL SILOXANE silicone, or mixture of silicones used for this invention, is at least 500,000 cSt (centiStokes) or mm2/s, preferably above 20,000,000 cSt or mm2/s.
This viscosity measurement is carried out using the methodology defined in DIN 53019.
Thanks to the application of this new invention, whose method of choice is, as already mentioned, by spray can, a hydrophobic (water-repellent), coloured and transparent film, which has a release/anti-adhesive effect against faeces and liquids, is deposited on the surface of the toilet (or other similar surfaces). More specifically, in the case of liquids, the droplets tend to slide directly into the bottom of the toilet, thus not drying out and releasing unpleasant smells; in the case of faeces, cleaning, even after a long time, is mechanically facilitated and therefore easier and faster. These effects are advantageously due to the fact that, using this invention, the adhesion force between the dirt and the film is very low: this allows to quickly remove, both immediately and even after some time, the dried product.
Another relevant aspect is that any residues tend to spontaneously disintegrate and be removed during subsequent rinse cycles.
The use of this invention therefore makes it possible, compared to what existing on the market, to reduce:
- cleaning times by the personnel;
- the consumption of washing water, as well as
- the use of aggressive detergents. In particular, saving cleaning water takes place upstream and the nondispersion of aggressive surfactants into waste water is a direct consequence thereof. These are two important factors in an ever-increasing effort to protect the environment in terms of both water saving and the discharge of pollutants into waste water.
The application by spray can is the most effective and performing, but the product can also be used in other ways, such as spraying, brushing or dabbing.
The product therefore requires only one application; the surface is active and functional after about 5-10 minutes. The deposited film is not permanent, as it can be easily removed by mechanical action or using detergents. The use of such a product allows to reduce consumption of water and aggressive detergents, as well as reduce the time for cleaning.
As mentioned above, the invention also relates to the spray can which comprises therein (filled with) a first predetermined amount of POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s, and a second predetermined amount of propellant. The spray can thus constituted is advantageously configured to allow a water-repellent/release coating according to the invention to be applied to an inner surface of a toilet or any other type of surface of any element.
Preferably, the propellant is a liquefied hydrocarbon, such as butane propane and dimethyl ether, or alternatively a compressed gas, such as carbon dioxide and diatomic nitrogen.
According to the preferred embodiment of the invention, a third predetermined amount of solvent is also placed inside the spray can of the invention. Preferably, this solvent is selected from alkanes, cycloalkanes or the like.
According to the preferred embodiment of the invention, the composition within the spray can is the following:
- POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s, 0.1 to 10%;
- solvent from 20 to 60%;
- propellant from 40 to 70%.
Finally, active ingredients can be added into the spray can to give it a perfume, sanitising, disinfecting and covering power. The invention also relates to the method of applying the water- repellent/release coating of the invention.
This method provides in particular the following steps: a) thoroughly cleaning the surface onto which said water-repellent/release coating is to be applied; b) applying the water-repellent/release coating (3) onto the surface using a spray can containing POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s, and a propellant, so that the solvent action is also provided by the propellant of the spray can itself; c) waiting for at least five minutes before using said surface to allow the dilution solvents present in said silicone to evaporate, allowing the formation of said water-repellent/release coating.
Preferably, the step a) is carried out using detergents in order to completely remove the residues present on said surface.
Again, according to the preferred embodiment of the invention, the step a) of cleaning the surface is followed by an additional step of drying and removing moisture from the surface with a dry cloth.
Finally, the product can be added with active ingredients that give it a perfume, sanitising, disinfecting and covering power.

Claims

1 ) A non-permanent water-repellent/release coating applicable onto the surfaces of an element, in particular of a toilet (1 ) or the like, characterised in that said water-repellent/release coating comprises a POLYDIMETHYL SILOXANE silicone as its main component, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s.
2) A spray can characterised in that it comprises therein a first predetermined amount of POLYDIMETHYL SILOXANE silicone, having a viscosity grade of at least 500,000 mm2/s, preferably greater than 20,000,000 mm2/s and a second predetermined amount of propellant, said spray can being configured to allow to apply a water-repellent/release coating according to claim 1 onto a surface of a toilet or the like.
3) The spray can according to claim 2, characterised in that said propellant is a liquefied hydrocarbon such as butane propane and dimethyl ether.
4) The spray can according to claim 2, characterised in that said propellant is a compressed gas, such as carbon dioxide and diatomic nitrogen.
5) The spray can according to any one of claims 2 to 4, characterised in that it contains therein a third predetermined amount of solvent.
6) The spray can according to claim 5, characterised in that said solvent is selected from alkanes, cycloalkanes or the like.
7) A method for applying a water-repellent/release coating according to claim 1 , characterised in that it comprises the following steps: a) thoroughly cleaning the surface onto which said water-repellent/release coating is to be applied; b) applying the water-repellent/release coating to said surface using a spray can containing POLYDIMETHYL SILOXANE silicone, with a viscosity grade of at least 500,000 mm2/s, preferably higher than 20,000,000 mm2/s, and a propellant, so that the solvent action is also provided by the propellant of the spray can itself; c) waiting for at least five minutes before using said surface, to allow the dilution solvents present in said silicone to evaporate, enabling the formation of said water-repellent/release coating.
8) The method according to claim 7, characterised in that said step a) is implemented by means of detergents in order to completely remove the residues present on said surface.
9) The method according to any one of claims 7 or 8, characterised in that said step a) of cleaning said surface is followed by an additional step of drying and removing moisture from said surface with a dry cloth.
PCT/IB2023/055972 2022-06-10 2023-06-09 High viscosity silicone-based water-repellent/release coating for surfaces, preferably of a bathroom and toilet, and associated application method WO2023238095A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202200012287 2022-06-10
IT102022000012287 2022-06-10

Publications (1)

Publication Number Publication Date
WO2023238095A1 true WO2023238095A1 (en) 2023-12-14

Family

ID=83899795

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/055972 WO2023238095A1 (en) 2022-06-10 2023-06-09 High viscosity silicone-based water-repellent/release coating for surfaces, preferably of a bathroom and toilet, and associated application method

Country Status (1)

Country Link
WO (1) WO2023238095A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0873837A (en) * 1994-09-01 1996-03-19 Osaka City Antifoulant and antifouling of toilet bowl
WO2004037944A1 (en) * 2002-10-23 2004-05-06 S. C. Johnson & Son, Inc. Process and composition for producing self-cleaning surfaces from aqueous systems
US20050250668A1 (en) * 2004-05-05 2005-11-10 Serobian Ashot K Rheologically stabilized silicone dispersions
US20060110541A1 (en) * 2003-12-18 2006-05-25 Russell Jodi L Treatments and kits for creating transparent renewable surface protective coatings
US20130115377A1 (en) * 2011-11-09 2013-05-09 Illinois Tool Works, Inc. Streak-free tire dressing
US20170321064A1 (en) * 2016-05-06 2017-11-09 Illinois Tool Works Inc. Surface treating composition and method of use
WO2018094161A1 (en) * 2016-11-18 2018-05-24 The Penn State Research Foundation Liquid and viscoelastic material repellent and anti-biofouling coatings
WO2021051036A1 (en) * 2019-09-13 2021-03-18 Spotless Materials Inc. Formulations and processes to generate repellent surfaces

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0873837A (en) * 1994-09-01 1996-03-19 Osaka City Antifoulant and antifouling of toilet bowl
WO2004037944A1 (en) * 2002-10-23 2004-05-06 S. C. Johnson & Son, Inc. Process and composition for producing self-cleaning surfaces from aqueous systems
US20060110541A1 (en) * 2003-12-18 2006-05-25 Russell Jodi L Treatments and kits for creating transparent renewable surface protective coatings
US20050250668A1 (en) * 2004-05-05 2005-11-10 Serobian Ashot K Rheologically stabilized silicone dispersions
US20130115377A1 (en) * 2011-11-09 2013-05-09 Illinois Tool Works, Inc. Streak-free tire dressing
US20170321064A1 (en) * 2016-05-06 2017-11-09 Illinois Tool Works Inc. Surface treating composition and method of use
WO2018094161A1 (en) * 2016-11-18 2018-05-24 The Penn State Research Foundation Liquid and viscoelastic material repellent and anti-biofouling coatings
WO2021051036A1 (en) * 2019-09-13 2021-03-18 Spotless Materials Inc. Formulations and processes to generate repellent surfaces

Similar Documents

Publication Publication Date Title
US11485863B2 (en) Liquids and viscoelastic material repellent and anti-biofouling coatings
JP3001980B2 (en) Aqueous composition for rinsing shower equipment and method for keeping shower equipment clean
AU2013208131B2 (en) Self-adhesive high viscosity cleaning composition
JP4303908B2 (en) Toilet cleaning method
FR2554459A1 (en) ACIDIC LIQUID DETERGENT COMPOSITION FOR CLEANING CERAMIC TILE WITHOUT EROSION OF JOINTS AND METHODS FOR MANUFACTURING AND APPLYING THE SAME
WO2009105233A1 (en) Cleaning composition having high self-adhesion and providing residual benefits
EP2262751B1 (en) Use of an alkanesulfonic acid as agent for cleaning cement, mortar and concrete
JP2011513509A (en) Cleaning composition that provides benefits from residues
JP2007270071A (en) Coating composition
US5863884A (en) Silicone and adhesive removal composition
KR20190115660A (en) Coating composition of glass for bathroom and method for coating using thereof
WO2023238095A1 (en) High viscosity silicone-based water-repellent/release coating for surfaces, preferably of a bathroom and toilet, and associated application method
WO2007116918A1 (en) Composite material with gradually dissolving coating film and coating composition
TWI274967B (en) Lithographic cleaning solution and method of cleaning therewith
JP2010516439A (en) Temporary protective polymer coating and removal system
JPH0751651A (en) Coating material for dirt prevention and deodorization
JP2019137594A (en) Plumbing member
JP4334260B2 (en) Glossy water repellent composition, method for producing the same, and automatic coating method
US6319546B1 (en) Hand spreadable surface coating for bathtubs and the like and method for its application
JP4122524B2 (en) Spray
JP2009256450A (en) Antifouling coating and toilet seat device using the same
WO1996025242A1 (en) Surface-treatment product
JP7321797B2 (en) Coating agent for toilet bowl
KR102569863B1 (en) Hydrophilic coating composition and coating laminate comprising the same
TW202229017A (en) Silicone composite stain-resistant sheet and anti-graffiti construction method using same

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23735089

Country of ref document: EP

Kind code of ref document: A1