| 摘要 |
PURPOSE:To recover visibility by applying thermohardening clear resin on an existing road marking line. CONSTITUTION:One among acrylic resin containing hydroxyl group (acrylpolyol), acrylic resin containing epoxy radical, epoxyresin of epibis type, bisphenol A type, novolak type, etc., alkyd resin out of reaction between polyatomic alcohol and polybasic acid, unsaturated polyester out of reaction between polyatomic alcohol and unsaturated polybasic acid, is used as thermohardening clear resin by adding each particular hardening agent. Acrylic urethane resin made by adding polyisocyanate to acrylpolyol has especially excellent heat resistance property and weatherability. It is applied on an existing road marking line at the rate of about 50-400g/m. Thereby, visibility of the road marking line can be recovered, and also visibility after the lapse of days can be improved. |
