RETROREFLECTIVE AQUEOUS PSEUDOPLASTIC GEL COMPOSITION FOR INDUSTRIAL SPRAYING

• Main Authors: KNOOTE, MENNO ARTHUR, KERRES, HARALD PAUL, MUIS, PHILIPPUS JACOB, KNOOTE, JACQUES ARTHUR, MIJNEN, PAUL WILLEM
• Format: Patent
• Language: English; Polish
• Published: 03.01.2024
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; 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 invention relates to an aqueous pseudoplastic gel composition, having a first viscosity η1 at a shear rate of 0.01 s-1 of between 5 and 200 Pa·s and a second viscosity η2 at a shear rate of 100 s-1 that is between 10 and 1000 times lower than the first viscosity, wherein the aqueous pseudoplastic gel consists of, based on the total weight of the composition:* 15 - 60 wt.% of water;* 20 - 60 wt.% of spherical glass beads having a median particle diameter D50, as measured with laser diffraction, between 20 and 150 µm, and a refractive index, measured at a wavelength λ of 589 nm, between 1.8 and 2.8;* 0.15 - 1.5 wt.% of a thickener; and* 0 - 50 wt.% of one or more further ingredients.The invention further relates to methods for its preparation. The invention further concerns a process for coating a substrate with a retroreflective layer using said aqueous pseudoplastic gel composition and to substrates coated with a retroreflective layer obtainable by said process.