ROOM TEMPERATURE-CURABLE TWO-PACK COATING COMPOSITION, WATERPROOF AGENT, AND WATERPROOFING METHOD

To provide a room temperature-curable two-pack coating composition which takes human bodies and the environment into consideration while achieving sufficient tensile strength, tear strength and tensile product generally required for a coating film waterproof material made of polyurethane after curin...

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Bibliographische Detailangaben
Hauptverfasser:	TASHIRO KENSHIRO, TORII HIDETOSHI, TARUMOTO NAOHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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
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Beschreibung
Zusammenfassung:	To provide a room temperature-curable two-pack coating composition which takes human bodies and the environment into consideration while achieving sufficient tensile strength, tear strength and tensile product generally required for a coating film waterproof material made of polyurethane after curing.SOLUTION: The room temperature-curable two-pack coating composition comprises a main agent containing a urethane prepolymer and a curing agent. The urethane prepolymer is a reaction product of a polyol and a polyisocyanate. The urethane prepolymer has a terminal isocyanate group derived from hydrogenated xylylene diisocyanate. The polyol contains polytetramethylene ether glycol, polyoxypropylene diol, and polyoxypropylene triol. An isocyanate concentration in the main agent is 0.9-1.90 mass%.SELECTED DRAWING: None 【課題】硬化後に、ポリウレタン製の塗膜防水材に一般に必要とされる十分な引張強さ、引裂強さ及び抗張積を実現しながら、人体及び環境に配慮した常温硬化型２液コーティング組成物を提供すること。【解決手段】ウレタンプレポリマーを含む主剤と、硬化剤とから構成され、上記ウレタンプレポリマーは、ポリオール及びポリイソシアネートの反応生成物であり、上記ウレタンプレポリマーは、水素添加キシリレンジイソシアネートに由来する末端イソシアネート基を有しており、上記ポリオールは、ポリテトラメチレンエーテルグリコール、ポリオキシプロピレンジオール及びポリオキシプロピレントリオールを含有し、主剤中のイソシアネート濃度が０．９～１．９０質量％である、常温硬化型２液コーティング組成物。【選択図】なし