Abstract:
A highway marking paint is provided formed from a waterborne latex paint and porous silica beads having a pore volume in the range of 0.3 cc/g to 3.0 cc/g. The silica beads enable the paint to achieve sufficient viscosity to permit the application of a highway marking of at least 40 mil and preferably at least 120 mil. The highway marking paint can also include retroreflective glass beads. Optionally, the highway marking paint further includes an acrylic polymer emulsion. The porous silica in bead form enhances the flowability of the porous silica beads and retroreflective beads.
Abstract:
By means of this invention, glass beads are coated with natural and organically modified montmorillonite to be competed with commercial products, applied easily, compatible with environmentally friendly water-based road marking paints, have high wear resistance and retoreflectivity. Coated glass beads are spread on the water based paint that is applied on 10 x 50 cm briquettes, soon after the paint applying process. Ratio of glass beads to paint is 33 % by weight. After paint dries, in order to simulate the way, a wheel with 6 bars pressure shuttles on the paint. At the end of this process, night visibilities are measured. After 10.000 cycles of shuttling, night visibility of paint including water based montmorillonite coated glass bead is higher than the paints including commercial silane coated, uncoated and modified montmorillonite coated glass beads. Modified montmorillonite coated glass beads provide similar night visibility when compared to commercial silane based glass bead and higher night visibility than uncoated glass bead.
Abstract translation:通过本发明,用天然和有机改性的蒙脱石涂覆玻璃珠,与商业产品竞争,容易应用,与环保的水性道路标线涂料相容,具有高耐磨性和反射性。 涂料玻璃珠涂布在施涂在10 x 50厘米煤球上的水性油漆上,油漆施工过程不久之后。 玻璃珠与涂料的比例为33重量%。 油漆干燥后,为了模拟方式,一个6巴压力的车轮在油漆上穿梭。 在这个过程结束时,测量夜间视力。 经过10.000次穿梭之后,包括水基蒙脱石涂层玻璃珠在内的涂料的夜间可见性高于包括商业硅烷涂覆,未涂覆和改性的蒙脱石涂层玻璃珠的涂料。 当与商业硅烷基玻璃珠相比,改性蒙脱石涂层玻璃珠提供类似的夜间可见度,并且比未涂覆的玻璃珠具有更高的夜视能力。
Abstract:
The present disclosure generally relates to retroreflective elements including a core and a plurality of glass or glass-ceramic beads adjacent to the core. The retroreflective elements further include a plurality of particles having a diameter that is less than the diameter of the glass or glass ceramic beads in the retroreflective elements. The present disclosure also generally relates to articles (including, for example, retroreflective roadway liquid pavement markings) including these retroreflective elements and methods of making and using these retroreflective elements.
Abstract:
A gray road bend (70) includes gray clusters of retroreflective pieces (10A, 10B, 10C). The clusters are not discernible to a road user in the day. At night they reflect light to an oncoming vehicle with the pieces (10A) creating a greater distance between vehicle passing in opposite directions, the pieces (10B) narrowing the lane (72) and the pieces (10C) reducing the speed limit to 30 Kmph.
Abstract:
The invention is a new concrete element (Z) for road marking and outdoor paving having a solid three-dimensional form, with bottom surface (F) resting on the ground and upper surface (S) exposed, wherein on said upper surface (S) at least one housing or basin (V) is obtained for containing a layer of refracting mixture (M) comprising in turn a plurality of spheres or microspheres (R) mixed with a hardening support resin or glue (C).
Abstract:
Retroreflecting sheet has reflecting element layer composed of multiple reflecting elements, holder layer and surface protective layer provided over reflecting element layer. Printed layer is provided on reflecting surfaces of reflecting elements, between holder layer and surface protective layer or on surface protective layer and has printed area where repetitive pattern of printed pattern units the area of each of which is 0.15-30 mm2> is formed discontinuously.
Abstract:
An exposed-lens retroreflective article (10) exhibiting retroreflection under dry and wet conditions is provided. The inventive article comprises a first set of optical elements (12) having a first reflective layer (14) disposed on the embedded portion of the elements. The first set contributes mainly to dry retroreflection. The article further comprises a second set of optical elements (22) having a second reflective layer (24) behind a spacing layer (26). The second set contributes mainly to wet retroreflection. In one embodiment, the first and second sets of optical elements have substantially the same average diameters, refractive index, and density.
Abstract:
The articles of the present invention comprise optical elements (12) embedded in either a core having a binder layer (16) which is embedded in a road-binder (26) or optical elements (16) which are directly embedded into a binder layer (16). The binder layer may be part of a preformed pavement marking tape or may be applied directly to a traffic-bearing surface. The binder layer is comprised of a black pigment. The pavement marking articles of the present invention comprise one or more first region(s) (32) wherein the first region(s) has a daytime appearance of black and is retroreflective. In another embodiment of the present invention, the pavement marking articles further comprise one or more second region(s) (34) having a color which contrasts with black during the daytime and which is typically also retroreflective. The second region(s) is adjacent to the first region(s).
Abstract:
Retroreflective pavement marking material (10) comprising on the top surface thereof an enclosed-lens retroreflective sheet (14) that comprises a monolayer of retroreflective elements wherein first portions of the monolayer are arranged in an upwardly contoured profile (18) and second portions of the monolayer are arranged in a lower, substantially planar position (20).