• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:

    公开号:FR3017620A1
    申请号:FR1554226
    申请日:2015-05-12
    公开日:2015-08-21
    发明作者:Gerard Messant；Yves Ortais
    申请人:GM AGRI；INVENTIVE HOLDING；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD OF THE INVENTION The invention relates to the field of paints, and more particularly to the field of paints for temporary road marking, ie paints used in particular for the temporary delimitation of lines and traffic areas. parking areas, pedestrian crossings and intersections. These paintings are commonly called "road paintings". The invention more particularly relates to a solvent for such a paint.
    [0002] STATE OF THE ART There are two different types of road paints, each corresponding to a different purpose: permanent road paints, and temporary road paints. The former must be as durable as possible, the latter must be easily removed or erased while having sufficient mechanical and chemical durability for the desired period of use, for example during a period of road work. These compositions can be applied by various techniques, for example brush or roller painting or hot spraying or solvent. The product applied on the road surface can then air dry. It is also possible to apply a thermoplastic composition which cures by cooling. In general, it is desirable that the road paints do not contain products that are toxic to the environment and are preferably even biodegradable, because these paints or at least their constituents or degradation products will be found sooner or later in the environment. environment. This is particularly the case for temporary road paints, which are usually removed with the help of a liquid product that dissolves them and eventually drains either into the sewage system or into the environment. An alternative for permanent road paints is adhesive films, the durability of which is sometimes a limiting element, in particular because they do not withstand the shear forces exerted by the tires. The permanent paints can also be burned with a torch, but this is not suitable for large surfaces and requires a lot of labor. It goes without saying that in the case where the temporary paint is removed by rinsing, not only the road paint itself (as well as its constituents and degradation products) but also the rinsing product must be non-toxic and preferably biodegradable.
    [0003] These paints must also meet other well-known criteria, and in particular their drying time must be minimal so as not to cause a long closure of the road after their application by liquid route. They must also be compatible with a multitude of different road surfaces, including the different grades of tar or asphalt used throughout the world, as well as the cements and concretes used for this purpose. After application, they must be resistant to abrasion, rain, cold, salt and organic solvents (gasoline, diesel, oil, glycols) and other commonly used liquid products that can spread accidentally on the road. Furthermore, they must allow the incorporation of various agents intended to give them specific properties, such as coloring agents and reflective agents, agents improving their abrasion resistance, curing agents. The performance of road paints must meet the standards in force in the country where they will be used. This is for example the NF EN 1436 + A1 standard (March 2009) "Road marking products - Performance of road markings for road users", the NF EN 1824 standard (February 1999) "Marking products Road Test - Road Test "and the" Horizontal Signaling Products "Certification Referential published by AFNOR Certification (identification number: NF331, revision number: 1, date of application: 15/09/05). In general, these paints can be single-component or two-component. They typically comprise a resin or wax base, a mineral filler to enhance their mechanical strength (especially abrasion), and a coloring filler (typically pigments). US Pat. No. 2,933,989 (V. Duval d'Adrian) describes a road paint based on waxes and resins derived from natural substances (rosin, hydrogenated castor oil, copal resin, dammar). These products having a low resistance to ultraviolet light, US Pat. No. 3,337,483 (Cataphote Corp.) proposes a composition based on alkylcellulose and a resin obtained by copolymerization of styrene with an ester; this composition contains petroleum products. Similarly, US Patent 3,523,029 (Cataphote Corp.) proposes another composition comprising acids derived from rosin.
    [0004] The patent application FR 2,221,502 (Sumitomo Chemical Co.) describes a thermoplastic composition for road marking comprising a synthetic resin (such as petroleum resins, melanin resins, phthalic resins, phenolic resins, resins of epoxy) or natural (such as rosin); this composition contains petroleum products.
    [0005] Patent application WO 2008/076360 (Reichhold, Inc.) discloses a road marking composition comprising an aqueous emulsion rich in solid elements of an alkyd resin derived from a natural oil, and a surfactant system composed of a nonionic surfactant and an ionic surfactant. This alkyd resin may be a copolymer with a unit of acryl and / or styrene. The resin described here consists in part of a phthalic anhydride, harmful to the environment.
    [0006] In general, other resin compositions of natural origin, for example that described in patent application EP 2 135 886 A1 (Colas and Valagro), which is based on derivatives of an oil, are also known. or naturally occurring fat comprising monoglycerides and / or triglycerides, esterified with a poly (hydroxy acid). This product has not been considered as a paint base.
    [0007] The alkyd resin described in the patent application FR 2 951 730 (National Center for Scientific Research and D.V.I. Labo) was considered as a base for surface coating, including as a base in a road marking paint. The resin described in this patent application is intrinsically biodegradable and exclusively composed of products of natural origin, including plant. On the other hand, this document does not describe a road marking paint composition consisting entirely of products of natural origin, and biodegradable. On the other hand, none of the documents mentioned above indicate a method and product for easily removing the paint when it is used for temporary marking, for example during work.
    [0008] Thus, the problem that the present invention seeks to solve is to propose a new single-component paint composition for road marking, which meets all the functional criteria of road paints commonly used (especially in terms of abrasion resistance), and which is based on organic components (resins) of natural origin, that is to say available in the form of natural products or can be synthesized easily from natural products, and biodegradable, in the form of non-toxic products , which is dispersed in an aqueous base, has very fast air drying, and has low volatile organic compounds (VOCs) and can be removed by spraying and rinsing with a non-biodegradable and non-biodegradable liquid. toxic.
    [0009] Objects of the invention According to the invention, the problem is solved by a temporary paint composition detachable with a release agent comprising a nonionic surfactant and having a pH of between 3 and 6, characterized in that said paint comprises 10 to 50% (and preferably 20 to 40%) by weight of an alkyd resin of natural origin in aqueous emulsion, said alkyd resin having a molar mass Mp of between 3000 g / mol and 100 000 g / mol, a polydispersity index lp of between 1 and 20, an oil length of 20 to 40%, and an acid number of 10 to 35; at least one mineral filler and / or pigment; - Quantum water satis, preferably at least 10% (and even more preferably at least 15%) by mass. Preferably, the organic constituents of said road paint are at least 97% by weight, and preferably at least 98% by weight, of natural origin. In a particular embodiment, the acid number of said alkyd resin is between 16 and 35, preferably between 18 and 35, and even more preferably between 18 and 30. The content of mineral fillers and / or pigments is advantageously between 20% and 60% by weight. Said paint may further comprise 0.1 to 1.5% by weight of an animal protein, preferably casein, and 0.1 to 0.2% of sodium hydroxide solution. It may also comprise 0.1 to 1% by weight of a thickener, preferably of cellulose ether, and / or 0.1 to 1% (and preferably 0.2 to 0.5%) by weight a biocidal agent, preferably of plant origin, and / or 0.1 to 1% (and preferably 0.5 to 1%) by weight of a wetting agent, preferably sodium polyphosphate, and / or or 0.1 to 1% by weight of at least one siccative agent, preferably an organometallic iron salt. Said paint advantageously contains an emulsifying agent, in a proportion of 0.5% to 5% by weight, which may advantageously be chosen from the group formed by gum arabic, modified starches, proteins of animal origin, p-cyclodextrin. . Its mineral fillers and the pigments are advantageously chosen from the group consisting of calcium carbonate, kaolin, silica, corundum, iron oxide III and titanium dioxide. The paint composition used in the invention is single-component and can be supplied and stored ready for use; it is in the form of a water-based emulsion and can be diluted with water to slightly adjust its viscosity before use.
    [0010] The paint composition according to the invention is formulated so that it does not give off more than 5 g / liter, and preferably not more than 2 g / liter, of volatile organic compounds under the test conditions of the invention. ISO 11890-2: 2006. Such a paint may be used as a temporary road paint, for example in a process for forming a coating which is releasable with a release agent which comprises a nonionic surfactant and which has a pH of between 3 and 6, said method being characterized in that such paint is applied to a surface, especially the surface of a road (ie, a surface of tar, concrete, cement), on a surface of stone or ceramic, or still on a glass surface (especially in the case of its use for shading horticultural greenhouses), which paint forms after drying a coating. This paint can also be used as temporary road painting, horticultural greenhouse temporary coating, removable or renewable wall paint, removable camouflage coating, printing ink, writing ink, temporary hair coating, nail polish. The object of the invention is to provide a solvent for said paint which is neither toxic nor harmful to the environment. Said solvent, which is able to remove and detach the coating formed by this process after its application and drying, is characterized in that it comprises at least 20% by weight of a nonionic surfactant, preferably an alkyl xyloside wherein the alkyl is C4-C6, forms yet another object of the invention. Advantageously, the pH of the solvent is between 3 and 6. According to the invention, its organic constituents have been chosen so that they can be prepared from products of natural origin, and thus, one prefers a embodiment in which its organic constituents are at least 95% by weight, and preferably at least 98% by weight, of natural origin. Another object is the use of this solvent to remove the coating formed by the process for forming a coating. A final object of the invention is a kit comprising the paint according to the invention and the solvent according to the invention, preferably in ready-to-use packaging and in appropriate proportions. Detailed description By "natural product" we mean here any product of plant or animal origin which is not of fossil origin and which does not contain any organic product of fossil origin, knowing that the term "product of origin" 'fossil origin' means any organic product derived from petroleum or coal or from petroleum or coal products. A product of natural origin can be distinguished from a similar product synthesized from fossil raw materials by the methods described in ASTM D6866.
    [0011] By "polydispersity index" we mean the ratio lp of the weight average molar mass Mw to the number average molecular weight Mn. The parameters Mp, Mn and lp are obtained after so-called steric exclusion chromatography of a solution of the resin after its passage over a gel column. By "siccativity" of an oil, we mean the ability of an oil to dry in the presence of oxygen in the air; this ability increases with the number of unsaturated bonds present in the structure of the oil. Typically, an oil containing monounsaturated fatty acids has a semi-drying character, whereas an oil containing polyunsaturated fatty acids has a siccative character. The term "emulsifying agent" (or "emulsifier") is used herein to mean any product or mixture of products that makes it possible or promotes the formation of an emulsion. Unless otherwise indicated, percentages characterizing a composition are percentages by weight. The composition used in the invention comprises an alkyd resin, synthesized from products of natural origin and especially from plant products, and having: a polydispersity index lp of between 1 and 20 (preferably between 5 and 15); ), a weight average molar mass Mp of between 3,000 g / mol and 100,000 g / mol (preferably between 3,000 g / mol and 70,000 g / mol), an acid number of between 5 and 30, a theoretical average length in oil of between 20% and 45%. - Advantageously, its dynamic viscosity measured at 80 ° C is between 10 and 50 dPas. Such a resin may be synthesized by polycondensation of starting materials comprising at least one polyol, at least one polyacid and at least one oil and / or one fatty acid, the oil being chosen from drying and / or semi-drying vegetable oils. , and the fatty acid being chosen from the fatty acids used in the composition of said drying and / or semi-drying vegetable oils. Moreover, the polyacid and the polyol are (advantageously) products of natural origin.
    [0012] These starting materials can be dynamically mixed continuously at a temperature advantageously between 180 ° C and 220 ° C until the formation of the modified alkyd resin. In particular, the starting materials may comprise at least one drying oil selected from the group consisting of flaxseed oil, Chinese wood oil, oiticica oil, and / or may comprise at least one semisoluble oil. drying agent selected from the group consisting of soybean oil, sunflower oil, safflower oil, grapeseed oil, carnauba oil, calendula oil. All these oils are products of natural origin.
    [0013] The fatty acid used in the composition of a semi-drying oil may advantageously be chosen from the group consisting of oleic acid, linoleic acid and linolenic acid. The polyacid may advantageously be chosen from oligomers of vegetable fatty acid, succinic acid and adipic acid.
    [0014] During the preparation of the resin, the molar mass and the polydispersity index can be controlled by addition of a chain blocking catalyst; this catalyst may be a polycarboxylic acid, for example poly (lactic acid), lactic acid or gluconic acid. These resins are biodegradable and release less than 2 g / I of volatile organic compounds (VOCs), determined according to ISO 11890-2. They are in compliance with the requirements of the European Ecolabel according to the Decision 2009/544 / EC of the European Commission. An aqueous emulsion of this alkyd resin can be prepared, for example with an emulsifying agent of fossil origin or, preferably, of natural origin. A proportion of emulsifying agent of between 1% and 6% by weight (relative to the total mass of the emulsion) may be suitable. The emulsifying agent may advantageously be chosen from the group consisting of gum arabic, modified starches (in particular starch substituted with an octenyl succinate group), casein, gelatin and (3-cyclodextrin, which are all products. of natural origin.
    [0015] In the context of the present invention, it is possible in particular to use the resins and emulsions described in patent applications WO 2011/051612 or FR 2 951 730 (National Center for Scientific Research and D.V.I. Labo). An aqueous emulsion of resin of natural origin that can be used in the context of the present invention is marketed under the name Veomul TM VT 098 by the Belgian company Vandeputte.
    [0016] The alkyd resin is used in the composition of road paint in a proportion of between about 10% and 50% solids, preferably between 10% and 30%, and even more preferably between 10% and 20%. By way of example, it is possible to use, for the preparation of the road paint according to the invention, about 15% to 45% by weight, and preferably between 15% and 40%, of an aqueous emulsion of resin with a dry extract of about 50% for the preparation of road paint according to the invention. The dry extract of the emulsion used may, however, be different, for example between 30% and 70% (preferably between 35% and 65%), and may take the values of 40%, 45%, 55%, 60% or more. % or all intermediate values.
    [0017] The paint composition used in the invention also comprises proteins of animal origin to ensure better cohesion and adhesion of the paint film, and to regulate its rheology, preferably in a content of between 0.1% and 1.5%. % mass. Casein is fine. A small amount of sodium hydroxide solution makes it possible to improve the incorporation of proteins (and especially casein) into the mixture; about 0.1% to 0.2% by weight is sufficient. The composition also comprises a wetting agent, preferably sodium polyphosphate, which ensures good dispersion of the pigments and fillers as well as the stability of the potted product. A content of between 0.3 and 1.3% by weight is suitable, preferably between 0.5% and 1%.
    [0018] Advantageously, the composition also comprises a defoaming agent of plant origin, to prevent the formation of foam during manufacture and during the application of the paint. Its content is preferably between 0.05% and 1.2% by weight. The product known by the trademark BYK-1740 TM may be suitable. The composition used in the invention advantageously comprises a biocide, namely a product which has a fungicidal and bactericidal activity. It is possible to use a product approved for cosmetic use which is therefore non-toxic, or a product for paints; as such, the product known under the trademark Mergal® 723K may be suitable. Typically, a concentration of between 0.05% and 0.5% is used. The composition used in the invention also comprises mineral fillers and / or pigments. They can fulfill several functions such as: opacifier, coloring agent, texture agent. The mineral fillers may have a pigment function, especially white pigment, but it is preferred to add other pigments. In general, the pigments used in the context of the present invention are preferably non-toxic inorganic pigments. Iron and titanium pigments, two non-toxic metals, are preferred. It may be, for example, TiO 2 (white pigment) and / or iron oxide (III) which is a yellow pigment, or else other pigments based on iron (red, black), in particular based on of iron oxides. Advantageously, said fillers and pigments are selected from the group consisting of titanium dioxide, iron oxide (yellow, red or black), kaolin, corundum, calcium carbonate, silica, silica, precipitation, sand, alumina, talc, or a mixture of these products. Advantageously, kaolin and / or silica are added as fillers, which add body to the paint and give it a certain whiteness. In addition, silica, which is preferably micronized, enhances the hardness of the paint film. In an advantageous embodiment, both kaolin and silica are used, in mass proportions of between 35:65 and 65:35, and preferably in approximately equal proportions by weight. Mineral fillers can also have an anti-abrasive function, to add hardness to the paint film, and to prevent its abrasive wear. For this purpose, for example, corundum may be used, preferably in micronized form. The corundum content may for example be between 6% and 12% by weight. Often, temporary road paints are yellow in color; in this case, yellow iron oxide is advantageously used as a non-toxic inorganic pigment. This pigment is preferably used in micronized form. A content of between 3 and 7% by weight is advantageous. If a white color is desired, the iron oxide can be replaced by another white mineral powder, for example by kaolin, silica or corundum; if a durable white paint is desired, corundum is preferred, it being understood that in this embodiment where the corundum replaces iron oxide, the total corundum content may therefore be greater than the 12% by weight referred to above. above, namely about 20%. It is also possible to add a thickening agent to adapt the rheology of the paint, especially a cellulose ether, such as hydoxyethylcellulose, to prevent the sedimentation of the paint; a content of between 0.1% and 0.5% by weight is generally suitable.
    [0019] One can also add at least one siccatif, which accelerates the drying of the paint. It may be for example a product comprising an organometallic salt, preferably based on iron (which is a non-toxic transition metal). Borchi Oxy-Coat sold by the company OMG Borchers can be used for this purpose in a content of between 0.4 and 1% by weight.
    [0020] Finally, the composition comprises water, quantum satis, and typically at about 15% to 30% by weight, and preferably about 19 to 25% by weight. An important parameter for the road paint according to the invention is the acid number of the alkyd resin, which must generally be between 5 and 35. More precisely, the acid number must be between 10 and 30 a temporary paint detachable with a solvent comprising a nonionic surfactant and having a pH of between 3 and 6, and between 5 and 15 for a permanent paint. If the acid value of the resin used in the temporary road paint is too low, it can no longer be dissolved under conditions acceptable to the solvent.
    [0021] By way of example, a temporary road paint can be prepared with the following composition (in mass percentages): Alkyd resin emulsion with an oil length of about 40% with a solids content of 50%: about 36% % (corresponding to a total dry alkyd resin content of the road paint of about 18%); - casein: about 0.5%; - sodium hydroxide solution: about 0.2%; - antifoam agent based on vegetable oil: about 0.3%; sodium polyphosphate: about 1%; - fungicidal and bactericidal agent: approximately 0.3%; nonionic and / or anionic surfactant: about 0.7%; - Mineral fillers: about 38% of which: o about 13% micronized silica, o about 12% kaolin, o about 8% micronized corundum; approximately 5% of micronized yellow iron oxide pigment; rheological agent (cellulose ether): about 0.3%; drying agent (organometallic iron salt): about 0.7%; - water: quantum satis (about 22%). Such a paint has a solids content of about 58-60% (determined according to ISO 3251 (110 ° C., 1 hour)), a density of about 1.21 to 1.23 (determined according to ISO 2811-1, to 23 ° C), a VOC content of less than 2 g / liter (determined according to ISO 11890-2), a flat cone viscosity of between 0.5 and 1 dPas at 25 ° C (determined according to ISO 284-1) . It is dried in accordance with ASTM D 5895 in about 5 minutes ("dust free"). A Taber test according to ISO 7784-2 with 40 to 100 mg on a CS 16/17 wheel with a load of 500 g gives a result of at least 500 revolutions after one week of drying. The paint used in the invention can be manufactured by a dispersion process.
    [0022] In one embodiment, the first step is to mix the resin with casein, water and sodium hydroxide solution, the second step is to add the antifoaming agent, the wetting agent and the fungicide, and finally, add mineral fillers and pigments and other additives. The paint used in the invention can be used as a paint for many temporary applications. In particular, it can be used as ground marking paint for roads, airport areas, supermarkets, as camouflage paint (especially in the military field), as decorative painting (especially in the artistic field and events) : cinema, show, theater, opera), as a removable or renewable mural painting. It can be used again as temporary painting of horticultural greenhouses. It can be used in cosmetics, as a temporary hair covering or nail polish. Moreover, it can be used as ink for printing or writing, by adding appropriate pigments. If necessary, its composition can be adapted to these specific uses, and in particular to the intended modes of application.
    [0023] For example, if remote spray application is provided (when applying paint to horticultural greenhouses), more water can be diluted. For an application on horticultural greenhouses, it is useless to provide the same abrasion-resistant mineral fillers as for a road application for which the good resistance to abrasion is essential.
    [0024] The paint according to the invention can be used as a temporary paint or as a permanent hinge. As indicated above, its composition can be adjusted to withstand more or less abrasion and / or dissolve more or less easily depending on the natural conditions, the conditions of use and the envisaged dissolution conditions.
    [0025] The temporary paint according to the invention can be dissolved using a suitable solvent, which comprises at least one nonionic surfactant. In an advantageous embodiment, the solvent comprises, as non-ionic surfactant, at least one alkyl-xyloside, in a proportion of at least 15% by weight and preferably of at least 20% by weight. The alkyl radical is preferably C4, C5 or C6. Butyl xyloside and especially amyl xyloside (CAS No. 444-850-4) are preferred; these alkyl xylosides may be prepared from biomass, in particular from lignocellulosic sugars.
    [0026] In an advantageous embodiment, a mixture comprising at least one alkyl glycoside with a C4, C5 or C6 alkyl radical (at least 20% by weight), and preferably butyl and / or amyl xyloside, is used. at least one Cg to C12 alkyl glycoside, less than 5% by weight, and preferably decyl glycosides (CAS No. 58846-77-8). These can be obtained by reaction of glucose (obtainable from corn starch) with decanol (obtainable from coconut). The solvent composition may further comprise an α-hydroxy acid, preferably hydroxy-acetic acid (CAS No. 79-14-1), which may also be obtained from natural products (sugar cane extracts, beets or grapes). The α-hydroxyl content is advantageously less than 5% by weight. The solvent composition may also comprise an alcohol, preferably isopropanol, its amount is advantageously less than 5% by weight. Thus, the solvent according to the invention can be made so that at least 95%, or even at least 98% by weight of its organic constituents are of natural origin. In addition, the solvent is biodegradable. Solvent also contains water, quantum satis. A mass proportion of at least 60%, and preferably at least 70%, is preferred. The solvent has a basic character, and its pH can be adjusted by adding, if necessary, a weak or strong base (for example sodium hydroxide solution, for example at a concentration of 0.5% to 2% by mass) or ammonia. Advantageously, the pH of the solvent is between 3 and 6, and even more advantageously between 4 and 6. It is possible to use a lower pH, but this is not advantageous because it is desired to avoid the escape of strong acids, even biodegradable, in the environment.
    [0027] The solvent can be applied by any suitable technique, for example by spraying, spraying, rolling. It is allowed to act for some time, depending in particular on the temperature (typically half an hour at 15 ° C) to allow its penetration into the paint and rinsed with water. A preferred method of application of the solvent is with a high-pressure cleaner, at a temperature of at least 50 ° C., preferably at least 65 ° C. and even more preferably at least 75 ° C, using a flat jet nozzle ("razor" type) at a pressure of at least 30 bar, and preferably at least 50 bar.
    权利要求:
    Claims (1)
    [0001]
    REVENDICATIONS1. A solvent capable of removing the coating formed, after application to a surface and drying, with a paint comprising: 10 to 50% by weight of an alkyd resin of natural origin in aqueous emulsion, said alkyd resin having a molar mass Mp included between 3,000 g / mol and 100,000 g / mol, a polydispersity index lp of between 1 and 20, an oil length of between 20 and 40%, and an acid number of between 10 and 35; at least one mineral filler and / or pigment; - Quantum satis water, said solvent being characterized in that it comprises o at least 15%, and preferably at least 20% by weight, of a nonionic surfactant, preferably an alkyl-xyloside in which the alkyl is C4 to O6, as is water quantum satis, and preferably at least 60%, and still more preferably at least 70% by weight of water. 3. 4. 5. A solvent according to claim 1, characterized in that its pH is between 3 and 6, and advantageously between 4 and 6. The solvent according to claim 1 or 2, characterized in that its organic constituents are at least at least 95% by weight, and preferably at least 98% by weight, of natural origin. Solvent according to any one of Claims 1 to 3, characterized in that it comprises at least 20% by weight of an alkyl-xyloside in which the alkyl is C4, C5 or C6 as a nonionic surfactant. ionic, and at least 5% by weight of a Cg alkylglycoside at 012. The solvent according to claim 4, characterized in that said alkyl-xyloside wherein said C4, C5 or C6 alkyl is butyl- and / or amyl xyloside.6. Solvent according to claim 4 or 5, characterized in that said C 8 to C 12 alkyl xyloside comprises decyl glycosides. 7. A solvent according to any one of claims 1 to 6, characterized in that it further comprises o an alcohol, preferably isopropanol, its amount being advantageously less than 5% by weight, and / or o an acid a- hydroxylated, preferably hydroxyacetic acid, the amount being advantageously less than 5% by weight. 8. Solvent according to one of claims 1 to 7, characterized in that at least 95%, and preferably at least 98% by weight of its organic constituents are of natural origin. 9. Application of a solvent according to any one of claims 1 to 8 for removing the coating formed, after application to a surface and drying, with a paint comprising: - 10 to 50% by weight of an alkyd resin; natural origin in aqueous emulsion, said alkyd resin having a molar mass Mp of between 3000 g / mol and 100 000 g / mol, a polydispersity index lp of between 1 and 20, an oil length of between 20 and 40% and an acid number of between 10 and 35; at least one mineral filler and / or pigment; - Quantum water satis, said application is preferably by spraying, spraying or roller, and even more preferably using a high pressure cleaner at a temperature of at least 50 ° C (preferably d at least 65 ° C and even more preferably at least 75 ° C) using a flat jet nozzle at a pressure of at least 30 bar and preferably at least 50 bar. Kit comprising a solvent according to any one of claims 1 to 8 and a paint comprising: - 10 to 50% by weight of an alkyd resin of natural origin in aqueous emulsion, said alkyd resin having a molar mass Mp of between 3 000 g / mol and 100,000 g / mol, a polydispersity index lp of between 1 and 20, an oil length of between 20 and 40%, and an acid number of between 10 and 35; at least one mineral filler and / or pigment; - Quantum water satis.
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    WO2013054040A3|2013-10-03|
    US20140228270A1|2014-08-14|
    FR3017620B1|2018-08-10|
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    FR2951730B1|2009-10-26|2012-05-11|Centre Nat Rech Scient|NATURAL ALKYDE RESIN AND AQUEOUS EMULSION OF SUCH A RESIN|
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    WO2011066679A1|2009-12-01|2011-06-09|Cytec Surface Specialties, S.A.|Coatings for ceramic substrates|
    KR20120091605A|2011-02-09|2012-08-20|주식회사 팬택|Terminal capable of multi wireless communication and data communication method using the same|CN106700741B|2015-11-14|2020-04-03|中山市大田汽车护理用品有限公司|Easy-to-clean automatic paint spraying for temporary marking and preparation method thereof|
    US10011725B2|2016-06-16|2018-07-03|International Business Machines Corporation|Paint compositions with color change characteristics|
    CN111978846A|2020-09-08|2020-11-24|安徽省金盾涂料有限责任公司|Bionic visible light and near infrared detection-resistant camouflage coating composition and preparation method thereof|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1159192|2011-10-11|
    FR1159192A|FR2981085B1|2011-10-11|2011-10-11|PAINT, IN PARTICULAR FOR TEMPORARY ROAD MARKING, BASED ON BIODEGRADABLE POLYMERS|
    FR1554226A|FR3017620B1|2011-10-11|2015-05-12|DISSOLVANT FOR PAINT FOR TEMPORARY ROAD MARKING|FR1554226A| FR3017620B1|2011-10-11|2015-05-12|DISSOLVANT FOR PAINT FOR TEMPORARY ROAD MARKING|
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