WO2024200825A1 - Composition de revêtement pour lame d'essuyage de balai d'essuie-glace - Google Patents
Composition de revêtement pour lame d'essuyage de balai d'essuie-glace Download PDFInfo
- Publication number
- WO2024200825A1 WO2024200825A1 PCT/EP2024/058780 EP2024058780W WO2024200825A1 WO 2024200825 A1 WO2024200825 A1 WO 2024200825A1 EP 2024058780 W EP2024058780 W EP 2024058780W WO 2024200825 A1 WO2024200825 A1 WO 2024200825A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- graphene
- coating composition
- dispersion
- wiper blade
- 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.)
- Pending
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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
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
- B60S2001/3829—Wiper blades characterised by the squeegee or blade rubber or wiping element characterised by the material of the squeegee or coating thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/042—Graphene or derivatives, e.g. graphene oxides
Definitions
- the invention relates to a coating composition for a wiper blade for a vehicle windshield wiper blade, to the use of such a composition and to a method of preparing the same. It also relates to a wiper blade for a windshield wiper blade coated, at least partially, with the composition.
- the wiper blades of such a system are conventionally driven by arms performing an angular back-and-forth movement. These blades rub against the outer surface of the window, for example the windshield, and evacuate the water by bringing it out of the driver's field of vision.
- the blades are made in the form of articulated levers which hold the wiper blade at several points.
- the blades are made in the form of a semi-rigid assembly which holds the wiper blade along its entire length.
- a wiper blade is made of elastically deformable material based on an elastomer supplemented with additives, in particular to improve its mechanical properties, elasticity, wear resistance, resistance to external aggression or to facilitate the implementation of the manufacturing process.
- additives in particular to improve its mechanical properties, elasticity, wear resistance, resistance to external aggression or to facilitate the implementation of the manufacturing process.
- This may for example be reinforcing fillers, plasticizer, vulcanizing agent, agent for protection against UV radiation, oxidation, ozone and/or wear.
- US patent 5,447,645 therefore describes a composition for lubricating and preserving rubber, comprising graphite, butyl titanate and isopropanol.
- This composition may also comprise other products such as anti-UV stabilizers, a binder, etc.
- such a composition has a highly flammable character, which requires special storage conditions and is therefore not very suitable for direct use by a non-professional.
- FR2977258 describes compositions useful for the renovation of windshield wiper blades which are aqueous compositions comprising 5 to 25% of sliding fillers, preferably graphite powder.
- compositions according to the present invention are achieved by the compositions according to the present invention.
- the present invention relates to a coating composition for a windshield wiper blade, the composition being an aqueous phase composition comprising at least one resin and from 30 to 60% of at least one solid lubricating agent in dispersion, the composition further comprising from 0.1 to 2%, preferably from 0.2 to 0.6% of graphene, the percentages being given by weight relative to the total weight of the composition.
- aqueous phase means a composition which comprises an organic solvent content of less than or equal to 10% by weight of the total weight of the composition.
- the organic solvent content is preferably less than or equal to 5% by weight, and more preferably equal to 0% by weight of the total weight of the composition.
- composition generally contains from 5 to 50% of aqueous solvent, that is to say a medium comprising water and optionally one or more hydrophilic co-solvents; such co-solvents may for example be of an alcoholic nature, in particular glycolic esters.
- the content of solid lubricating agent in the dispersion is adjusted so as to provide 5 to 25% of solid lubricating agent in the composition.
- the dispersion is in aqueous phase.
- composition may further contain polymer microbeads or microparticles, such as those described in FR2925507.
- composition may further contain additives.
- the invention also relates to the use of the coating composition for coating, at least in part, a wiping blade for a windshield wiper.
- Another object of the invention is a method of preparing the coating composition of a windshield wiper blade.
- the invention also relates to a wiping blade for a vehicle windshield wiper blade coated with said composition.
- the composition is environmentally friendly and healthy thanks to the use of materials such as graphene, and is not flammable.
- solid lubricant here we mean components other than graphene.
- the solid lubricating agent may be chosen from lubricants known to those skilled in the art. Mention may in particular be made of natural lubricants such as graphite, molybdenum disulfide, as well as synthetic lubricants, such as graphite fluoride, tungsten disulfide, boron nitride, tungsten, molybdenum and niobium diselenide, or titanium iodide and disulfide, as well as their various mixtures in all proportions.
- natural lubricants such as graphite, molybdenum disulfide, as well as synthetic lubricants, such as graphite fluoride, tungsten disulfide, boron nitride, tungsten, molybdenum and niobium diselenide, or titanium iodide and disulfide, as well as their various mixtures in all proportions.
- graphite and/or molybdenum disulfide are used, and particularly powdered graphite in the form of an aqueous dispersion.
- the graphite has a size of less than 10 ⁇ m.
- the concentration of solid lubricating agent in aqueous dispersion is 30 to 60% by weight.
- the distribution of graphene particles and solid lubricant dispersed in the composition is homogeneous.
- Graphene is a crystalline two-dimensional material that is in the form of a sheet.
- the graphene used in the compositions according to the invention may comprise from 1 to 10 sheets; it is in the form of fine particles, from 2 to 10 ⁇ m, preferably from 5 to 10 ⁇ m.
- the concentration of graphene in the coating composition is 0.1 to 2%, especially 0.1 to 1%, preferably 0.2 to 0.6%. For these concentrations, an improvement in the resistance of the coating and an improvement in the wiping quality are surprisingly observed.
- the performance of the dry abrasion test can, for higher concentrations, be better and then deteriorate.
- the performance curve takes the form of a Gaussian curve. The improvement in resistance decreases for concentrations greater than 2%, or even for concentrations greater than or equal to 1% by weight.
- the choice of concentrations of 0.1 to 2%, in particular 0.1 to 1% and preferably 0.2 to 0.6% of graphene in the compositions gives the coating good resistance to cold and ice. This property is important for windshield wiper blades intended to be used in cold weather, the coating of which will not be degraded, which increases the service life of the wiper blades.
- the cold resistance of the coating is degraded for very high concentrations of graphene in the composition or for compositions in an organic medium.
- the concentration of graphene in the composition can thus be approximately 0.1 to 2%, in particular 0.1 to 1%, and in particular 0.2%, 0.3%, 0.4%, 0.5% or 0.6% by weight.
- the resin may in particular be an aqueous phase resin, comprising at least one acrylic, vinyl, styrene or urethane polymer, in aqueous phase.
- the polymer may be a homopolymer or a copolymer. These polymers may be used alone or mixed depending on their compatibilities or the desired final properties.
- the resin contains at least one acrylic polymer in aqueous phase.
- This may include a dispersion or emulsion of polymer in aqueous phase.
- the resin preferably has a glass transition temperature of less than or equal to 0°C, and more preferably less than or equal to -20°C, in order to maintain the flexibility properties of the coating film at low temperatures.
- the amount of resin in the compositions will be adapted by a person skilled in the art according to the desired properties; it is generally 10 to 25% by weight of resin emulsion or dispersion relative to the total weight of the composition, which corresponds to approximately 30 to 50% by weight of resin relative to the weight of the dry components (excluding the solvent).
- composition according to the invention may further contain at least one additive chosen from thickening agents, spreading agents, dispersing agents, anti-foaming agents and UV protective agents.
- UV protective agents include UV stabilizing agents and UV inhibiting agents.
- the thickeners are preferably chosen from modified celluloses and modified urethane polymers.
- the content is preferably less than or equal to 0.5% by weight relative to the total weight of the composition.
- the spreading agent makes it possible to reduce the surface energy of the composition. It can in particular be chosen from silicone surfactants, such as dimethylsiloxane modified polyethers.
- the dispersing agents are intended to ensure better dispersion of particles, such as glass particles and solid lubricating agent.
- the dispersing agent is in particular a water-soluble polymeric agent; preferably, the polymeric dispersing agent comprises an ionic form of the polymer or copolymer used as resin.
- a polyacrylate will preferably be used when the resin is a polyacrylic resin.
- the polymer microbeads when present in the compositions, may consist of a polymer which may be a homopolymer or a copolymer.
- the polymer of the microparticles may in particular be chosen from polymers based on acrylates, diallyl phthalates, epoxy units, vinyl acetate-ethylene, urea-formaldehyde, phenols, amide (such as nylon), carbonate, fluoropolymers (such as polytetrafluoroethylene), organosiloxanes, unsaturated esters, polyethylene, ethylene terephthalate, amide-imide imide, propylene, styrene, sulfone, ether sulfone, urethane, vinyl chloride.
- the polymer of the microparticles is preferably a hydrophobic polymer, and resistant to oxygenated solvents. It may in particular be chosen from polymers based on acrylates, amide (such as nylon), carbonate, fluoropolymers, organosiloxanes, styrene.
- the polymer is preferably chosen from silicones, such as polyorganosiloxanes. Polymethylsilsesquioxane is preferably used.
- the polymer microparticles are introduced into the dispersion in an amount capable of producing a dispersion of microspheres.
- the composition must be homogeneous, to facilitate its subsequent application to the wiper blade. Homogeneity can be assessed by the uniformity of the distribution of the graphene particles in the resin, so that at any point in the mixture there is no over-representation or under-representation of the particles, at least macroscopically. A person skilled in the art will be able to recognize whether the distribution is homogeneous either with the naked eye or microscopically.
- the invention therefore also relates to a process for preparing a coating composition as defined in the present description, the process comprising the following steps:
- step b introducing the graphene particles into the dispersion obtained in step a, to obtain a dispersion of the particles and the solid lubricating agent, and
- step b adding at least one aqueous phase resin to the dispersion obtained in step b.
- a dispersion of a solid lubricant such as a graphite dispersion is prepared in a first step, which is then mixed with powdered graphene.
- a ready-to-use, available dispersion of a lubricating agent is used. It is understood that step a also encompasses the case where such a ready-to-use dispersion is implemented.
- the graphene is introduced in the form of dry powder.
- the graphene is introduced in the form of a suspension in an aqueous medium.
- concentration of graphene in the suspension will be adapted so as to obtain the final graphene concentration defined above.
- suspensions comprising 4% by weight of graphene are used; in this case, the amount of suspension is in particular 2.5 to 25%.
- a dispersion of resin, for example acrylic resin, in aqueous phase is then added to the previous mixture.
- step c Any additives are added, if necessary, after step c.
- the solvent(s) are also added after this step c.
- These are in particular water and possibly one or more co-solvents such as glycol ethers, such as for example 2-butoxyethanol.
- step c polymer microparticles are introduced in step c, mixed with the resin in aqueous phase.
- the process is known to those skilled in the art from patent FR2925507.
- the invention also relates to the use of a coating composition as defined in the present text or capable of being obtained by the process described above, for at least partially coating a wiper blade for a windshield wiper.
- the composition can, for example, be applied directly to the wiper blade or to a profiled rubber strip which is then re-cut into two or three parts to obtain the wiper blade.
- the application of the coating composition is carried out by dipping the wiper blade or profiled rubber strip into the composition, by spraying the composition onto the wiper blade or profiled rubber strip, or by coating the wiper blade or profiled rubber strip with the composition.
- the wiper blade or profiled rubber strip is then dried. In the case of the rubber strip, this is finally re-cut into two or three parts to obtain the wiper blades.
- the application step may be preceded by a preheating step and baking of the coating, particularly in an infrared oven or convection oven.
- the thickness of the coating layer is between 1 and 10 ⁇ m, preferably between 2 and 6 ⁇ m, and more preferably between 3 and 5 ⁇ m.
- the invention also relates to a windshield wiper blade on which the coating composition has been applied.
- the blade is coated with a composition comprising at least solid lubricants, graphene and resin, as defined above, but in which the solvent has been evaporated.
- the wiping blade 1 of a windshield wiper blade has an elongated shape and is intended to be carried by a body of the blade (not shown).
- the blade 1 comprises a lip 3 and a heel 5 which are connected by a hinge 7.
- the lip 3, heel 5, hinge 7 assembly forms a basic body of the blade 1.
- the heel 5 allows the blade 1 to be hooked into the body of the broom.
- the lip 3 is intended to be in contact with the outer surface of a window such as a windshield for wiping purposes.
- the hinge 7 is formed by a thin strip of material which gives the blade a certain flexibility and allows it to tilt when the direction of movement of the broom changes, in other words a forward and backward tilting movement of the lip.
- Blade 1 is obtained by a conventional manufacturing process known to those skilled in the art.
- At least a portion of the blade 1 is coated with the coating composition as described above, in particular the base body of the blade is coated with this composition. It is thus possible to envisage embodiments in which, for example:
- compositions are prepared:
- compositions are prepared as follows:
- the lubricating agent dispersion is ready to use or manufactured, preferably ready to use;
- the additive resin for example, spreading agent and anti-foaming agent (based on mineral oils, polymers or silicone agents) at a rate of 1 to 1.5% by weight.
- Dry abrasion test Wear resistance performance is measured by dry abrasion test with different coating compositions.
- Coated blades are positioned to slide on a smooth glass surface subjected to a compressive load (here 15 N/m) for a given number of cycles (here 43200 cycles). After a given number of cycles, the rubber deposition on the glass and the blade wear are evaluated.
- a compressive load here 15 N/m
- a given number of cycles here 43200 cycles.
- Adhesion test the adhesion of different coating formulations to rubber is evaluated.
- the adhesion test consists of moving back and forth across the coated wiper blade using paper soaked in alcohol-based windshield washer fluid and then observing and rating the surface of the coating using an internal grid.
- Resistance test comparative test between different coatings that can be produced on the same rubber. The resistance of the coating is measured as follows:
- the coated blades are positioned so that they slide on a smooth glass surface on which a coating simulating dust is applied. They are subjected to a compressive load (here 15N/m) for a determined number of cycles (here 10 cycles). The observation of the wear of the coating is observed and measured via a video microscope.
- Example 3 Abrasion resistance test
- the coated blades are evaluated under real conditions of use, i.e. on a vehicle windshield.
- the evaluation of defects such as streaks, veils, noises, etc. are evaluated on a scale of 1 to 10. 10 being the best.
- a stream of water is applied along the lip of the rubber blade coated with the graphene-containing composition, in the parking position, placed at -20°C.
- a dry detachment of the blade from the ice is then carried out. The observation is carried out on the residual ice and on the rubber blade itself.
- Example 6 Comparative dry abrasion test
- the dry abrasion test is carried out on a blade treated with a reference formulation not containing graphene, a formulation containing graphene according to the invention, and on a blade treated with a formulation containing graphene at a concentration higher than that of the invention.
- compositions are prepared as described in Example 1.
- a degradation in performance is observed for the coating composition containing a high concentration of graphene.
- the composition according to the invention does not modify the result and therefore does not alter the wear resistance of the composition.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
Description
| Référence 1 | A1 | B1 | Référence 2 | A2 | B2 | C2 | D2 | |
| Résine(s) | 17,8 | 17,8 | 17,7 | 24,5 | 24,5 | 24,4 | 24,1 | 23,3 |
| Charge(s) lubrifiante(s) |
57,4 | 57,3 | 57,1 | 34,1 | 34 | 33,9 | 33,4 | 32,4 |
| Particules de polymère |
- | - | - | 3,3 | 3,3 | 3,3 | 3,3 | 3,2 |
| Additif(s) | 1,1 | 1,1 | 1,1 | 1,3 | 1,3 | 1,3 | 1,3 | 1,2 |
| Solvant(s) | 23,7 | 23,6 | 23,5 | 36,8 | 36,7 | 36,5 | 35,9 | 34,9 |
| Graphène | 0 | 0,2 | 0,6 | 0 | 0,2 | 0,6 | 2 | 5 |
| Charge(s) lubrifiante(s) |
57,4 | 57,3 | 57,1 | 34,1 | 34 | 33,9 | 33,4 | 32,4 |
| Réfé- rence 1 |
A1 | B1 | Réfé- rence 2 |
A2 | B2 | C2 | D2 | |
| Test d'adhésion | Con- forme |
Con- forme |
Con- forme |
Con- forme |
Con- forme |
Con- forme |
Con- forme |
Con- forme |
| Abrasion sèche <0,5 mm3 | 0,06 | 0,06 | 0,05 | - | - | - | - | - |
| Amélioration de la résistance du revêtement |
- | +6% | +22% | - | +24% | +26% | +13% | +12% |
| Référence 1 | A1 | B1 | |
| Sens montant | 6,6 | 7,0 | 7,0 |
| Sens descendant | 8,5 | 8,5 | 8,8 |
| Moyenne | 7,5 | 7,8 | 7,9 |
Claims (13)
- Composition de revêtement pour une lame d'essuyage de balai d'essuie-glace, la composition étant une composition en phase aqueuse comprenant au moins une résine et de 30 à 60% d'au moins un agent lubrifiant solide en dispersion, la composition comprenant en outre de 0,1 à 2%, de préférence de 0,1 à 1% de graphène, l’agent lubrifiant solide étant différent du graphène, les pourcentages étant donnés en poids par rapport au poids total de la composition.
- Composition de revêtement selon la revendication 1, caractérisée en ce qu’elle contient 5 à 25% d’agent lubrifiant solide.
- Composition de revêtement selon l’une au moins des revendications 1 ou 2, caractérisée en ce que l'agent lubrifiant solide est choisi parmi les particules de graphite et les particules de bisulfure de molybdène.
- Composition selon l'une au moins des revendications 1 à 3, caractérisé en ce que la résine est un polymère acrylique, vinylique, styrénique et/ou uréthane, en phase aqueuse.
- Composition de revêtement selon l'une au moins des revendications 1 à 4, caractérisée en ce qu'elle comprend de 10 à 25% en poids d’émulsion ou de dispersion de résine par rapport au poids total de la composition.
- Composition de revêtement selon l'une au moins des revendications 1 à 5, caractérisée en ce qu'elle contient en outre au moins un additif choisi parmi les agents épaississants, les agents d'étalement, les agents dispersants, les agents anti-mousse et les agents protecteurs UV.
- Composition de revêtement selon l'une au moins des revendications 1 à 6, caractérisée en ce qu'elle contient des microbilles de polymère.
- Composition de revêtement selon l'une au moins des revendications 1 à 7 caractérisée en ce qu’elle contient de 0,2 à 0,6% en poids de graphène.
- Procédé de préparation d'une composition de revêtement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend les étapes suivantes
a) préparation d'une dispersion d'un agent lubrifiant solide en phase aqueuse,
b) introduction des particules de graphène dans la dispersion obtenue à l'étape a, pour obtenir une dispersion des particules et de l'agent lubrifiant solide, et
c) ajout d'au moins une résine en phase aqueuse à la dispersion obtenue à l'étape b. - Procédé de préparation selon la revendication 9, caractérisé en ce qu'à l'étape b) le graphène est introduit sous forme d'une suspension en milieu aqueux.
- Procédé de préparation selon la revendication 9 ou 10 caractérisé en ce qu'après l'étape c, il comprend une étape d'ajout d'au moins un additif et/ou un solvant.
- Utilisation d'une composition selon l'une au moins des revendications 1 à 8, ou susceptible d'être obtenue par le procédé selon l'une au moins des revendications 9 à 11, pour revêtir au moins en partie une lame d'essuyage pour balai d'essuie-glace.
- Lame d'essuyage pour balai d'essuie-glace revêtue au moins en partie d'une composition selon l'une des revendications 1 à 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480021720.8A CN120858148A (zh) | 2023-03-29 | 2024-03-29 | 用于挡风玻璃擦拭器的擦拭器刮片的涂料组合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2303033A FR3147286A1 (fr) | 2023-03-29 | 2023-03-29 | Composition de revêtement pour lame d'essuyage de balai d'essuie-glace |
| FRFR2303033 | 2023-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024200825A1 true WO2024200825A1 (fr) | 2024-10-03 |
Family
ID=87036294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/058780 Pending WO2024200825A1 (fr) | 2023-03-29 | 2024-03-29 | Composition de revêtement pour lame d'essuyage de balai d'essuie-glace |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120858148A (fr) |
| FR (1) | FR3147286A1 (fr) |
| WO (1) | WO2024200825A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447645A (en) | 1994-05-16 | 1995-09-05 | Green Island Research Inc. | Composition and method for lubricating and preserving rubber |
| FR2925507A1 (fr) | 2008-04-08 | 2009-06-26 | Valeo Systemes Dessuyage | Procede de preparation d'une composition de revetement pour lame d'essuyage d'essuie-glace |
| FR2977258A1 (fr) | 2011-06-28 | 2013-01-04 | Valeo Systemes Dessuyage | Composition de renovation d'un organe d'essuyage |
| KR20160034625A (ko) * | 2014-09-22 | 2016-03-30 | (주) 삼산Slc | 고체윤활용 코팅제 및 이를 이용한 코팅방법 |
| CN110499093A (zh) * | 2019-08-14 | 2019-11-26 | 东华大学 | 一种绿色环保石墨烯自润滑复合涂层及其制备方法和应用 |
| US20200071547A1 (en) * | 2017-03-22 | 2020-03-05 | Kübler Lubrication München SE & Co. KG | Dry film lubricants containing graphene |
| US20220220407A1 (en) | 2021-01-11 | 2022-07-14 | Cap Corporation | Graphene coating composition for wiper blade and method for coating wiper blade using the same |
-
2023
- 2023-03-29 FR FR2303033A patent/FR3147286A1/fr active Pending
-
2024
- 2024-03-29 WO PCT/EP2024/058780 patent/WO2024200825A1/fr active Pending
- 2024-03-29 CN CN202480021720.8A patent/CN120858148A/zh active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447645A (en) | 1994-05-16 | 1995-09-05 | Green Island Research Inc. | Composition and method for lubricating and preserving rubber |
| FR2925507A1 (fr) | 2008-04-08 | 2009-06-26 | Valeo Systemes Dessuyage | Procede de preparation d'une composition de revetement pour lame d'essuyage d'essuie-glace |
| FR2977258A1 (fr) | 2011-06-28 | 2013-01-04 | Valeo Systemes Dessuyage | Composition de renovation d'un organe d'essuyage |
| KR20160034625A (ko) * | 2014-09-22 | 2016-03-30 | (주) 삼산Slc | 고체윤활용 코팅제 및 이를 이용한 코팅방법 |
| US20200071547A1 (en) * | 2017-03-22 | 2020-03-05 | Kübler Lubrication München SE & Co. KG | Dry film lubricants containing graphene |
| CN110499093A (zh) * | 2019-08-14 | 2019-11-26 | 东华大学 | 一种绿色环保石墨烯自润滑复合涂层及其制备方法和应用 |
| US20220220407A1 (en) | 2021-01-11 | 2022-07-14 | Cap Corporation | Graphene coating composition for wiper blade and method for coating wiper blade using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3147286A1 (fr) | 2024-10-04 |
| CN120858148A (zh) | 2025-10-28 |
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