초록 ▼

The present invention relates to a novel retroreflective coating composition which can be suitably applied to a metal substrate using a conventional coral coating process and apparatus. The retroreflective coating composition provides a retroreflective film upon application by coral coating without

The present invention relates to a novel retroreflective coating composition which can be suitably applied to a metal substrate using a conventional coral coating process and apparatus. The retroreflective coating composition provides a retroreflective film upon application by coral coating without additional processing steps. The retroreflective coating composition is comprised of (a) 45 to 60% of a resin binder system and (b) 55 to 40% of reflective transparent glass microspheres having a refractive index of 2.1 to 2.5 and a diameter of 20 to 60 microns. The resin binder system is comprised of a thermosetting ethyl acrylate-styrene copolymer, cross-linking resin, aromatic volatile solvent, anti-gelling stabilizer, colloidal suspending agent, dibasic ester acetate, and cross-linking accelerator, and have a refractive index of 1.5 to 1.9. Hence, the novel retroreflective coating composition can provide a retroreflective article with less manufacturing steps and at a lower cost.

대표청구항 ▼

[ We claim:] [1.] A liquid retroreflective coating composition for coil coating application, comprising:(a) 45 to 60% of a resin binder system, and(b) 55 to 40% of reflective transparent glass microspheres having a refractive index of 2.1 to 2.5 and a diameter of 20 to 60 microns, d resin binder sys

[ We claim:] [1.] A liquid retroreflective coating composition for coil coating application, comprising:(a) 45 to 60% of a resin binder system, and(b) 55 to 40% of reflective transparent glass microspheres having a refractive index of 2.1 to 2.5 and a diameter of 20 to 60 microns, d resin binder system (a) comprising:(c) thermosetting ethyl acrylate-styrene copolymer,(d) cross-linking resin,(e) aromatic volatile solvent,(f) anti-gelling stabilizer,(g) colloidal suspending agent,(h) dibasic ester acetate, and(i) cross-linking accelerator, rein said resin binder system has a refractive index of 1.5 to 1.9, and wherein said retroreflective coating composition forms a retroreflective film when applied by coil coating.