DURABLE AQUEOUS COMPOSITIONS FOR USE IN MAKING TRAFFIC MARKINGS HAVING GOOD DIRT PICKUP RESISTANCE AND TRAFFIC MARKINGS MADE THEREWITH

• Main Authors: Clamen Guy, Pollet Bruno, Haigh John, Chailloux Loïc, Greyson Eric C
• Format: Patent
• Language: English
• Published: 03.11.2016
• Subjects: ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE; ADHESIVES; BUILDING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CORRECTING FLUIDS; DYES; FILLING PASTES; FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS; FIXED CONSTRUCTIONS; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The present invention provides aqueous compositions useful in making traffic markings having early dirt pickup resistance which comprise one or more vinyl or acrylic emulsion polymers having a measured glass transition temperature (measured Tg) of from −10 to 60° C., preferably 20° C. or higher, (ii) from 3 to 15 wt. %, or, preferably, from 6 to 12 wt. %, as solids based on total polymer solids, of one or more polyurethane dispersions (PUD), (iii) one or more coalescent having a normal boiling point of from 150 to 300° C., and (iv) one or more fillers, extenders and/or pigments, preferably an opacifier pigment and one or more extenders, wherein the composition has a percent pigment volume concentration (% PVC) of from 45 to 80%, preferably from 45 to 65%.