HEAT INSULATION COATING COMPOSITION HAVING AQUEOUS TWO-LIQUID CURABILITY, HEAT INSULATION COATING PAINTING METHOD, AND HEAT INSULATION PAVEMENT

• Main Authors: OGATA SEITARO, SATO SHIGENOBU, IWAMA MASAHIKO, YAMANE KATSUMI
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2018
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; CORRECTING FLUIDS; DYES; FILLING PASTES; FIXED CONSTRUCTIONS; INKS; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide: a coating composition capable of exhibiting sufficient heat insulation property, surely suppressing increase of road surface temperature, further capable of forming a coated film excellent in weather resistance, water resistance, and stain resistance and having sufficient durability, as an aqueous two-liquid type coating composition for heat insulation to paint an elastic pavement such as a rubber chip urethane pavement; a painting method using the same; and a heat insulation pavement.SOLUTION: There is provided a heat insulation coating composition having aqueous two-liquid curability, and consisting of: a main agent containing hydroxyl group-containing acryl emulsion polyol, hydroxyl group-containing polyurethane dispersion polyol and hydroxyl group-containing acryl dispersion polyol, as a coated film formation binder component dispersed in an aqueous medium, and at least hollow particles as a filler for heat insulation; and a reactive film formation assistant generating a crosslinking reaction with the coated film formation binder component of the main agent so as to cure a coated film, and consisting of a polymer.SELECTED DRAWING: Figure 2 【課題】ゴムチップウレタン舗装などの弾性舗装に塗装するための遮熱用の水性２液タイプの塗料組成物として、充分な遮熱性を発揮して、路面温度の上昇を確実に抑制することができ、しかも耐候性、耐水性、耐汚染性に優れていて、十分な耐久性を有する塗膜を形成することが可能な塗料組成物、それを用いた塗装工法、遮熱性舗装体を提供する。【解決手段】水性媒体中に分散される塗膜形成バインダ成分として、水酸基含有アクリルエマルジョンポリオールと、水酸基含有ポリウレタンディスパージョンポリオールと、水酸基含有アクリルディスパージョンポリオールとを含み、かつ遮熱用フィラーとして少なくとも中空粒子を含む主剤と；主剤の塗膜形成バインダ成分と架橋反応を生じて塗膜を硬化させる、ポリマーからなる反応性造膜助剤と；からなることを特徴とする、水性２液硬化性を有する遮熱性塗料組成物。【選択図】図２