EP0056771B1 - Retroreflective roadway marking formation method and means for its execution - Google Patents
Retroreflective roadway marking formation method and means for its execution Download PDFInfo
- Publication number
- EP0056771B1 EP0056771B1 EP82400094A EP82400094A EP0056771B1 EP 0056771 B1 EP0056771 B1 EP 0056771B1 EP 82400094 A EP82400094 A EP 82400094A EP 82400094 A EP82400094 A EP 82400094A EP 0056771 B1 EP0056771 B1 EP 0056771B1
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- European Patent Office
- Prior art keywords
- microspheres
- weight
- treated
- glass
- adhesion
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 title claims abstract 3
- 239000004005 microsphere Substances 0.000 claims abstract description 80
- 239000011521 glass Substances 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 9
- 239000008240 homogeneous mixture Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 2
- 229920000180 alkyd Polymers 0.000 claims description 2
- 229910000077 silane Inorganic materials 0.000 claims description 2
- 238000005188 flotation Methods 0.000 description 9
- 239000005871 repellent Substances 0.000 description 6
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 239000003981 vehicle Substances 0.000 description 2
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
- E01F9/524—Reflecting elements specially adapted for incorporation in or application to road surface markings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
Definitions
- the present invention relates to retroreflective coatings, in particular intended for marking roads, a method for their realization and means for the implementation of this method.
- This type of retroreflective coating comprises, on the surface, a layer of very small diameter glass spheres (microspheres) sprinkled on a layer of binder (paint or coating).
- the present invention relates to a method for producing retro-reflective horizontal road markings, in which a marking product is applied to the place to be marked, characterized in that the surface of said product is dusted before drying with a mixture of treated glass microspheres for flotation and treated glass microspheres for adhesion to the marking product.
- a practically homogeneous mixture comprising from 20 to 50%, in particular from 20 to 30%, by weight of glass microspheres treated for flotation and from 80 to 50%, in particular from 80 to 70%, weight of microspheres treated for adhesion.
- this new type of microsphere with a certain quantity of distinct microspheres, for example water-repellent by a silicone treatment.
- water-repellent microspheres give retroreflection results which decrease fairly quickly over time, so they are used for roadways where the marking is renewed quite frequently.
- the water repellency treatment is tolerated because it prevents agglomeration of the microspheres and clogging of the nozzles during the application of the microspheres. This agglomeration of microspheres occurs in the hoppers of the marking machines by condensation of ambient humidity during sudden changes in atmospheric conditions.
- mixtures preferably containing between 60 and 80% by weight, and in general approximately 75% by weight, of water-repellent microspheres.
- percentage is too high, the advantageous characteristics of the mixtures according to the invention disappear and, when the percentage is too low, the water-repellency characteristics become much less advantageous and in particular it is no longer possible to meet French standards in matter.
- paints and hot coatings such as alkyd, acrylic or chlorinated rubber paints, hot coatings with hydrocarbon resin or ketone resin.
- the method according to the present invention gives particularly interesting results, in particular in terms of the durability of the retroreflection when the marking product used is a glycerophtallic paint or based on chlorinated rubber.
- the glass microspheres used preferably have a granularity such that at least 90% by weight of said microspheres have a diameter between 0.500 and 0.125 mm.
- the glass microspheres treated for flotation are preferably microspheres comprising a coating of a finishing agent such as a fluorocarbon agent, in particular as described in the patent of United States of America n ° 3,222,204 mentioned previously. This material must allow wetting and sinking without the meniscus normally associated with an agent improving adhesion.
- a finishing agent such as a fluorocarbon agent
- the glass microspheres treated for adhesion are preferably glass microspheres coated in a sufficient quantity of a coupling product which is adapted to the nature of the labeling product.
- the coupling product can be, in particular, a silane such as 3,4-epoxycyclohexylethyltri-methoxysilane or any other chemical compound with polar surfactant groups, whose organic functions are chemically compatible with road marking products and whose inorganic functions are specific to glass silica.
- This type of glass microspheres treated for adhesion are sold for example by the company POTTERS BALLOTINI S.A. under the name of microspheres treated with a coupling agent CP01, CP03 or CP05. This same company also supplies treated microspheres for flotation.
- the application of the marking product on the roadways as well as the dusting of the surface with the microspheres can be carried out by any of the methods known in this field, for example the paint can be distributed by Kamber gun and the spheres atomized by Kamber gun, as for the coatings, they can be applied by a classic shoe device with smoothing plate or by projection, the spheres being distributed by gravity.
- the dosages of the various constituents obviously depend on the type of labeling product used, the dosage in microspheres being between approximately 200 and 400 g / m 2 .
- the present invention also relates to substantially homogeneous mixtures of microspheres intended for carrying out the process.
- Microspheres A and B have a granularity satisfying the conditions of French approval, as well as the mixture A / B.
- microspheres A are sold by the company POTTERS BALLOTINI S.A. under the name of microspheres treated for adhesion CP01 and microspheres B are sold by the same company under the name of microspheres treated for flotation.
- the tests were carried out in parallel under conditions corresponding to a traffic of approximately 3,000 to 4,000 vehicles / day.
- the first group of tests was carried out using a glycerophtallic paint distributed by Kamber gun, the spheres being distributed by gravity then atomization by Kamber gun.
- the second group of tests is carried out under the same conditions as for Example 1, but a paint based on chlorinated rubber is used.
- Example 1 As in Example 1, after 12 months, a much greater retroreflection is observed in the case of the A / B mixture than that observed for the traditional coatings A and B.
- mixtures comprising 70% of water-repellent microspheres and 30% of microspheres according to the present invention can successfully undergo the water-repellency control in accordance with French standard.
Landscapes
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Engineering & Computer Science (AREA)
- Road Signs Or Road Markings (AREA)
- Paints Or Removers (AREA)
- Optical Elements Other Than Lenses (AREA)
- Road Repair (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- General Factory Administration (AREA)
- Eye Examination Apparatus (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Detergent Compositions (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Glass Compositions (AREA)
- Aerials With Secondary Devices (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
Description
La présente invention concerne les revêtements rétroréfléchissants, en particulier destinés au marquage des routes, un procédé pour leur réalisation et des moyens pour la mise en oeuvre de ce procédé.The present invention relates to retroreflective coatings, in particular intended for marking roads, a method for their realization and means for the implementation of this method.
Il est connu d'utiliser des revêtements rétroréfléchissants pour le marquage des routes afin d'améliorer la visibilité des marques de nuit. En effet, ce type de revêtement réfléchit la lumière des phares avec une plus grande intensité que les revêtements ordinaires qui diffusent une grande partie de la lumière qu'ils reçoivent.It is known to use retroreflective coatings for road marking in order to improve the visibility of night marks. Indeed, this type of coating reflects the light from the headlights with greater intensity than ordinary coatings which diffuse a large part of the light they receive.
Ce type de revêtement rétroréfléchissant comporte, en surface, une couche de sphères de verre de très faible diamètre (microsphères) saupoudrées sur une couche de liant (peinture ou enduit).This type of retroreflective coating comprises, on the surface, a layer of very small diameter glass spheres (microspheres) sprinkled on a layer of binder (paint or coating).
Les problèmes posés par ce genre de revêtement, lorsqu'il s'agit d'un marquage horizontal sur route, sont que les microsphères doivent émerger suffisamment de la surface de la couche de liant pour pouvoir rétroréfléchir la lumière mais pas suffisamment pour risquer d'être éliminées rapidement par le passage des véhicules dont les roues tendent à arracher les microsphères du revêtement.The problems with this kind of coating, when it comes to horizontal road marking, are that the microspheres must emerge sufficiently from the surface of the binder layer to be able to retroreflect the light but not enough to risk be quickly eliminated by the passage of vehicles whose wheels tend to tear the microspheres from the coating.
Diverses solutions ont été proposées pour remédier aux inconvénients précédents.Various solutions have been proposed to remedy the above drawbacks.
Il a d'abord été proposé de traiter la surface des sphères afin d'améliorer leur adhérence avec le liant.It was first proposed to treat the surface of the spheres in order to improve their adhesion with the binder.
Cette solution n'est pas totalement satisfaisante car les sphères résistent bien à l'arrachement mais tendent à s'enfoncer trop profondément dans le revêtement et donc conduisent à une rétroréflexion insuffisante.This solution is not completely satisfactory because the spheres resist tearing well but tend to sink too deeply into the coating and therefore lead to insufficient retroreflection.
Il a également été proposé, en particulier dans le brevet des Etats-Unis d'Amérique n° 3 222 204, un traitement de surface spécial pour les sphères de verre afin d'assurer une certaine « flottation des sphères de verre. Ces sphères flottent sur le revêtement en émergeant de 50 %, ce qui paraît optimum, néanmoins, là encore, il est difficile de conserver une bonne rétroréflexion au-delà de 12 mois.It has also been proposed, in particular in United States Patent No. 3,222,204, a special surface treatment for glass spheres in order to ensure a certain "flotation of the glass spheres. These spheres float on the coating, emerging from 50%, which seems optimum, however, here again, it is difficult to maintain good retro-reflection beyond 12 months.
La présente invention concerne un procédé pour la réalisation de marquage routier horizontal rétroréfléchissant, dans lequel on applique un produit de marquage sur l'endroit à marquer caractérisé en ce qu'on saupoudre la surface dudit produit avant séchage avec un mélange de microsphères de verre traitées pour la flottation et de microsphères de verre traitées pour l'adhérence au produit de marquage.The present invention relates to a method for producing retro-reflective horizontal road markings, in which a marking product is applied to the place to be marked, characterized in that the surface of said product is dusted before drying with a mixture of treated glass microspheres for flotation and treated glass microspheres for adhesion to the marking product.
De préférence, on utilise un mélange pratiquement homogène comprenant de 20 à 50%, en particulier de 20 à 30 %, en poids de microsphères de verre traitées pour la flottation et de 80 à 50%, en particulier de 80 à 70 %, en poids de microsphères traitées pour l'adhérence.Preferably, a practically homogeneous mixture is used comprising from 20 to 50%, in particular from 20 to 30%, by weight of glass microspheres treated for flotation and from 80 to 50%, in particular from 80 to 70%, weight of microspheres treated for adhesion.
De façon tout à fait surprenante, on a constaté que ce type de mélange de microsphères conduisait à un produit ayant des propriétés qui sont sans aucun rapport direct avec les propriétés de chacun des types de microsphères utilisés.Quite surprisingly, it has been found that this type of mixture of microspheres leads to a product having properties which have no direct relation to the properties of each of the types of microspheres used.
Le comportement de ces mélanges est tel que ceux-ci peuvent être assimilés à un « nouveau type de microsphère ayant ses propres caractéristiques.The behavior of these mixtures is such that they can be assimilated to a “new type of microsphere with its own characteristics.
Ainsi, lors des tests on a observé après 1 an d'utilisation une rétroréflexion pour ce type de mélange qui est de 50 à 100% supérieure à la rétroréflexion observée pour les microsphères constituant le mélange.Thus, during the tests, after 1 year of use, a retroreflection was observed for this type of mixture which is 50 to 100% greater than the retroreflection observed for the microspheres constituting the mixture.
Bien que l'on préfère utiliser ces mélanges seuls pour obtenir les meilleurs résultats, il est possible de leur adjoindre d'autres types de microsphères pour conférer à l'ensemble des propriétés particulières. -Mais, dans ce cas, pour que les caractéristiques propres des mélanges selon l'invention demeurent, il convient de conserver un certain rapport en poids entre les microsphères traitées pour la flottation et les microsphères traitées pour l'adhérence, rapport en poids qui correspond aux pourcentages donnés précédemment, c'est-à-dire de préférence entre 1/4 et 1/1 et en général entre 1/4 et 3/7.Although it is preferred to use these mixtures alone to obtain the best results, it is possible to add other types of microspheres to them to give the whole set of particular properties. But, in this case, so that the proper characteristics of the mixtures according to the invention remain, it is advisable to keep a certain weight ratio between the microspheres treated for flotation and the microspheres treated for adhesion, weight ratio which corresponds to the percentages given previously, that is to say preferably between 1/4 and 1/1 and in general between 1/4 and 3/7.
Dans ces conditions, il est alors possible d'associer « ce nouveau type de microsphère » avec une certaine quantité de microsphères distinctes, par exemple hydrofugées par un traitement au silicone.Under these conditions, it is then possible to associate “this new type of microsphere” with a certain quantity of distinct microspheres, for example water-repellent by a silicone treatment.
Ces microsphères hydrofugées donnent des résultats de rétroréflexion qui diminuent assez rapidement avec le temps, aussi sont-elles utilisées pour les chaussées où le marquage est renouvelé assez fréquemment. Le traitement d'hydrofugation est toléré car il évite l'agglomération des microsphères et le bouchage des gicleurs lors de l'application des microsphères. Cette agglomération des microsphères se produit dans les trémies des machines de marquage par condensation de l'humidité ambiante lors des modifications brusques des conditions atmosphériques.These water-repellent microspheres give retroreflection results which decrease fairly quickly over time, so they are used for roadways where the marking is renewed quite frequently. The water repellency treatment is tolerated because it prevents agglomeration of the microspheres and clogging of the nozzles during the application of the microspheres. This agglomeration of microspheres occurs in the hoppers of the marking machines by condensation of ambient humidity during sudden changes in atmospheric conditions.
L'intérêt de mettre en oeuvre un mélange selon l'invention en combinaison avec des microsphères hydrofugées est que cette combinaison peut subir avec succès certains tests particuliers dits « essais de contrôle d'hydrofugation qui sont précisément destinés à déterminer les possibilités d'agglomération des microsphères en milieu humide.The advantage of using a mixture according to the invention in combination with water-repellent microspheres is that this combination can successfully undergo certain specific tests called "water-repellency control tests which are precisely intended to determine the possibilities of agglomeration of the microspheres in a humid environment.
Il est possible d'utiliser des mélanges contenant de préférence entre 60 et 80 % en poids, et en général environ 75 % en poids, de microsphères hydrofugées. Lorsque le pourcentage est trop élevé, les caractéristiques avantageuses des mélanges selon l'invention disparaissent et, lorsque le pourcentage est trop faible, les caractéristiques d'hydrofugation deviennent beaucoup moins intéressantes et en particulier il n'est plus possible de satisfaire les normes françaises en la matière.It is possible to use mixtures preferably containing between 60 and 80% by weight, and in general approximately 75% by weight, of water-repellent microspheres. When the percentage is too high, the advantageous characteristics of the mixtures according to the invention disappear and, when the percentage is too low, the water-repellency characteristics become much less advantageous and in particular it is no longer possible to meet French standards in matter.
Pour saupoudrer la surface du produit de marquage avec un mélange de microsphères, il est possible de saupoudrer avec un prémélange des deux types de microsphères ou bien de saupoudrer de préférence simultanément avec les deux types de sphères de verre en réglant les débits de chacun des dispositifs de saupoudrage pour obtenir les quantités désirées.To sprinkle the surface of the marking product with a mixture of microspheres, it is possible to sprinkle with a premix of the two types of microspheres or else to sprinkle preferably simultaneously with the two types of glass spheres by adjusting the flow rates of each of the dusting devices to obtain the desired quantities.
Parmi les produits de marquage utilisables, il faut citer les peintures et les enduits à chaud tels que les peintures alkyde, acryliques ou à base de caoutchouc chloré, les enduits à chaud à résine hydrocarbonée ou à résine cétonique.Among the marking products which can be used, mention should be made of paints and hot coatings such as alkyd, acrylic or chlorinated rubber paints, hot coatings with hydrocarbon resin or ketone resin.
Le procédé selon la présente invention donne des résultats particulièrement intéressants, en particulier au niveau de la durabilité de la rétroréflexion lorsque le produit de marquage utilisé est une peinture glycérophtallique ou à base de caoutchouc chloré.The method according to the present invention gives particularly interesting results, in particular in terms of the durability of the retroreflection when the marking product used is a glycerophtallic paint or based on chlorinated rubber.
Les microsphères de verre utilisées présentent de préférence une granularité telle qu'au moins 90 % en poids desdites microsphères aient un diamètre compris entre 0,500 et 0,125 mm.The glass microspheres used preferably have a granularity such that at least 90% by weight of said microspheres have a diameter between 0.500 and 0.125 mm.
Les microsphères de verre traitées pour la flottation sont, de préférence, des microsphères comportant un revêtement d'un agent d'apprêt tel qu'un agent fluorocarboné, en particulier tel que cela est décrit dans le brevet des Etats-Unis d'Amérique n° 3 222 204 mentionné précédemment. Cette matière doit permettre le mouillage et l'enfoncement sans le ménisque normalement associé avec un agent améliorant l'adhérence.The glass microspheres treated for flotation are preferably microspheres comprising a coating of a finishing agent such as a fluorocarbon agent, in particular as described in the patent of United States of America n ° 3,222,204 mentioned previously. This material must allow wetting and sinking without the meniscus normally associated with an agent improving adhesion.
Les microsphères de verre traitées pour l'adhérence sont, de préférence, des microsphères de verre revêtues en quantité suffisante d'un produit de couplage qui est adapté à la nature du produit de marquage. Le produit de couplage peut être, en particulier, un silane tel que 3,4-époxycyclohexyléthyltri- méthoxysilane ou tout autre composé chimique avec des groupements polaires tensio-actifs, dont les fonctions organiques sont chimiquement compatibles avec les produits de marquage routier et dont les fonctions inorganiques sont spécifiques de la silice du verre.The glass microspheres treated for adhesion are preferably glass microspheres coated in a sufficient quantity of a coupling product which is adapted to the nature of the labeling product. The coupling product can be, in particular, a silane such as 3,4-epoxycyclohexylethyltri-methoxysilane or any other chemical compound with polar surfactant groups, whose organic functions are chemically compatible with road marking products and whose inorganic functions are specific to glass silica.
Ce type de microsphères de verre traitées pour l'adhérence sont vendues par exemple par la société POTTERS BALLOTINI S.A. sous le nom de microsphères traitées par un agent de couplage CP01, CP03 ou CP05. Cette même société fournit également des microsphères traitées pour la flottation.This type of glass microspheres treated for adhesion are sold for example by the company POTTERS BALLOTINI S.A. under the name of microspheres treated with a coupling agent CP01, CP03 or CP05. This same company also supplies treated microspheres for flotation.
L'application du produit de marquage sur les chaussées ainsi que le saupoudrage de la surface avec les microsphères peuvent être mis en oeuvre par l'un quelconque des procédés connus dans ce domaine, par exemple la peinture peut être distribuée par pistolet Kamber et les sphères atomisées par pistolet Kamber, quant aux enduits, ils peuvent être appliqués par un dispositif de sabot classique avec plaque de lissage ou par projection, les sphères étant distribuées par gravité.The application of the marking product on the roadways as well as the dusting of the surface with the microspheres can be carried out by any of the methods known in this field, for example the paint can be distributed by Kamber gun and the spheres atomized by Kamber gun, as for the coatings, they can be applied by a classic shoe device with smoothing plate or by projection, the spheres being distributed by gravity.
Les dosages des différents constituants dépendent évidemment du type de produit de marquage utilisé, le dosage en microsphères étant compris entre environ 200 et 400 g/m2.The dosages of the various constituents obviously depend on the type of labeling product used, the dosage in microspheres being between approximately 200 and 400 g / m 2 .
La présente invention concerne également les mélanges pratiquement homogènes de microsphères destinés à la mise en oeuvre du procédé.The present invention also relates to substantially homogeneous mixtures of microspheres intended for carrying out the process.
Les essais conduits avec les mélanges selon la présente invention ont conduit de façon tout à fait surprenante à la constatation que la « durabilité de la rétroréflexion du mélange était très supérieure à celle des revêtements traditionnels.The tests carried out with the mixtures according to the present invention led, quite surprisingly, to the observation that the "durability of the retroreflection of the mixture was much greater than that of traditional coatings.
Des essais destinés à démontrer les avantages du procédé selon la présente invention ont été réalisés en utilisant :
- - des microsphères traitées pour l'adhérence, microsphères A
- - des microsphères traitées pour la flottation, microsphères B
- - un mélange de
- 75 % de microsphères A et
- 25 % de microsphères B microsphères A/B
- - microspheres treated for adhesion, microspheres A
- - microspheres treated for flotation, microspheres B
- - a mix of
- 75% of microspheres A and
- 25% of B microspheres A / B microspheres
Les microsphères A et B présentent une granularité satisfaisant aux conditions d'homologation française, de même que le mélange A/B.Microspheres A and B have a granularity satisfying the conditions of French approval, as well as the mixture A / B.
En outre, les microsphères A sont vendues par la société POTTERS BALLOTINI S.A. sous le nom de microsphères traitées pour l'adhérence CP01 et les microsphères B sont vendues par la même société sous le nom de microsphères traitées pour la flottation.In addition, microspheres A are sold by the company POTTERS BALLOTINI S.A. under the name of microspheres treated for adhesion CP01 and microspheres B are sold by the same company under the name of microspheres treated for flotation.
Les essais ont été réalisés en parallèle dans des conditions correspondant à une circulation d'environ 3 000 à 4 000 véhicules/jour.The tests were carried out in parallel under conditions corresponding to a traffic of approximately 3,000 to 4,000 vehicles / day.
Le premier groupe d'essais a été effectué en utilisant une peinture glycérophtallique distribuée par pistolet Kamber, les sphères étant distribuées par gravité puis atomisation par pistolet Kamber.The first group of tests was carried out using a glycerophtallic paint distributed by Kamber gun, the spheres being distributed by gravity then atomization by Kamber gun.
Les conditions de ces essais sont les suivantes :The conditions of these tests are as follows:
(Voir Tableau page 4)
Les résultats de rétroréflexion en mcd.1 x-1 · m-2 et le nombre de sphères par cm2 sont rassemblés dans le tableau I ci-après :
On constate de façon tout à fait surprenante que la rétroréflexion au bout de 12 mois est très supérieure pour les revêtements obtenus par la mise en oeuvre du procédé selon la présente invention par rapport aux revêtements traditionnels contenant des microsphères A ou B.It is quite surprising that the retroreflection after 12 months is much higher for the coatings obtained by implementing the method according to the present invention compared to traditional coatings containing microspheres A or B.
Le second groupe d'essais est effectué dans les mêmes conditions que pour l'exemple 1 mais on utilise une peinture à base de caoutchouc chloré.The second group of tests is carried out under the same conditions as for Example 1, but a paint based on chlorinated rubber is used.
Les conditions de ces essais sont les suivantes :
Les résultats mesurés sont rassemblés dans le tableau Il :
Comme dans l'exemple 1 on observe au bout de 12 mois une rétroréflexion très supérieure dans le cas du mélange A/B à celle observée pour les revêtements traditionnels A et B.As in Example 1, after 12 months, a much greater retroreflection is observed in the case of the A / B mixture than that observed for the traditional coatings A and B.
Les différentes mesures ont été effectuées par les méthodes standards utilisées dans ce domaine.The various measurements were carried out by the standard methods used in this field.
Des mélanges selon la présente invention, auxquels ont été associées des microsphères hydrofugées, ont été soumis aux contrôles d'hydrofugation selon les normes françaises. Les résultats observés sont les suivants :
Ainsi, les mélanges comportant 70 % de microsphères hydrofugées et 30 % de microsphères selon la présente invention peuvent subir avec succès le contrôle d'hydrofugation conforme à la norme française.Thus, mixtures comprising 70% of water-repellent microspheres and 30% of microspheres according to the present invention can successfully undergo the water-repellency control in accordance with French standard.
Claims (15)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82400094T ATE7316T1 (en) | 1981-01-19 | 1982-01-19 | METHOD OF FORMING LIGHT REFLECTIVE ROAD MARKINGS AND MEANS OF PERFORMING ITS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8100879 | 1981-01-19 | ||
| FR8100879A FR2498221A1 (en) | 1981-01-19 | 1981-01-19 | PROCESS FOR THE PRODUCTION OF RETROREFLECTIVE ROAD MARKINGS AND MEANS FOR THEIR IMPLEMENTATION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0056771A1 EP0056771A1 (en) | 1982-07-28 |
| EP0056771B1 true EP0056771B1 (en) | 1984-05-02 |
Family
ID=9254282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82400094A Expired EP0056771B1 (en) | 1981-01-19 | 1982-01-19 | Retroreflective roadway marking formation method and means for its execution |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0056771B1 (en) |
| JP (1) | JPS57172012A (en) |
| AT (1) | ATE7316T1 (en) |
| CA (1) | CA1193126A (en) |
| DE (1) | DE3260123D1 (en) |
| DK (1) | DK150743C (en) |
| ES (1) | ES8305078A1 (en) |
| FI (1) | FI73272C (en) |
| FR (1) | FR2498221A1 (en) |
| NO (1) | NO155630C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT400594B (en) * | 1988-02-19 | 1996-01-25 | Glaverbel | GLASS BEADS IN A MARKING CONTAINING A MATRIX |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH673044A5 (en) * | 1983-05-09 | 1990-01-31 | Moses Bollag | |
| US5258071A (en) * | 1987-05-14 | 1993-11-02 | Glaverbel | Vitreous filler material for a polymeric matrix |
| US5370818A (en) * | 1993-05-28 | 1994-12-06 | Potters Industries, Inc. | Free-flowing catalyst coated beads for curing polyester resin |
| CA2307094C (en) * | 1997-10-21 | 2007-09-25 | The Dow Chemical Company | Thermoplastic marking compositions |
| WO2001042349A1 (en) * | 1999-12-10 | 2001-06-14 | Abildgaard Roadvision Aps | A reflective road marking and a method of producing and applying a reflective road marking composition |
| RU2447227C1 (en) * | 2010-09-21 | 2012-04-10 | Сергей Владимирович Карпеев | Horizontal road marking |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3222204A (en) * | 1960-04-20 | 1965-12-07 | Minnesota Mining & Mfg | Process of making beaded coatings and films from glass beads treated with oleophobic sizing agent |
| US3900605A (en) * | 1973-09-05 | 1975-08-19 | Jr Robert W Norris | Method of forming traffic markers having short track-free times |
| DE7713988U1 (en) * | 1977-04-28 | 1977-09-22 | Minnesota Mining And Manufacturing Co., Saint Paul, Minn. (V.St.A.) | STRIPED MATERIAL TRACK |
-
1981
- 1981-01-19 FR FR8100879A patent/FR2498221A1/en active Granted
-
1982
- 1982-01-08 DK DK005482A patent/DK150743C/en not_active IP Right Cessation
- 1982-01-14 FI FI820114A patent/FI73272C/en not_active IP Right Cessation
- 1982-01-18 ES ES508841A patent/ES8305078A1/en not_active Expired
- 1982-01-19 NO NO820150A patent/NO155630C/en unknown
- 1982-01-19 JP JP57006724A patent/JPS57172012A/en active Granted
- 1982-01-19 DE DE8282400094T patent/DE3260123D1/en not_active Expired
- 1982-01-19 CA CA000394494A patent/CA1193126A/en not_active Expired
- 1982-01-19 EP EP82400094A patent/EP0056771B1/en not_active Expired
- 1982-01-19 AT AT82400094T patent/ATE7316T1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT400594B (en) * | 1988-02-19 | 1996-01-25 | Glaverbel | GLASS BEADS IN A MARKING CONTAINING A MATRIX |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315406B2 (en) | 1988-04-05 |
| NO155630C (en) | 1987-04-29 |
| CA1193126A (en) | 1985-09-10 |
| EP0056771A1 (en) | 1982-07-28 |
| FR2498221A1 (en) | 1982-07-23 |
| DK150743B (en) | 1987-06-09 |
| FI73272B (en) | 1987-05-29 |
| FI820114L (en) | 1982-07-20 |
| NO155630B (en) | 1987-01-19 |
| FI73272C (en) | 1987-09-10 |
| DE3260123D1 (en) | 1984-06-07 |
| NO820150L (en) | 1982-07-20 |
| DK150743C (en) | 1987-10-19 |
| ES508841A0 (en) | 1983-04-01 |
| ATE7316T1 (en) | 1984-05-15 |
| JPS57172012A (en) | 1982-10-22 |
| ES8305078A1 (en) | 1983-04-01 |
| DK5482A (en) | 1982-07-20 |
| FR2498221B1 (en) | 1984-04-27 |
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