AQUEOUS COATING COMPOSITION AND METHOD FOR PRODUCING THE SAME

To provide an isocyanate curable aqueous coating composition having both excellent low-temperature curability and good long-term storage stability.SOLUTION: The aqueous coating composition contains: a polyol; a polyisocyanate; a hydrophobic curing catalyst which comprises an organometallic compound...

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Bibliographische Detailangaben
Hauptverfasser:	YOMO SHUJI, ANPO KEIJI
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 an isocyanate curable aqueous coating composition having both excellent low-temperature curability and good long-term storage stability.SOLUTION: The aqueous coating composition contains: a polyol; a polyisocyanate; a hydrophobic curing catalyst which comprises an organometallic compound containing at least one kind of metal atom selected from the group consisting of Sn, Bi, Zr, Ti and Al and has a solubility in water of 1 g/100 mL or less under an atmospheric pressure condition at 20°C; and a nonionic surfactant having an HLB value of 10-15 as determined by Griffin's method.SELECTED DRAWING: None 【課題】優れた低温硬化性と長時間の良好な貯蔵安定性とを兼ね備えるイソシアネート硬化型の水性塗料組成物を提供すること。【解決手段】ポリオールと、ポリイソシアネートと、Ｓｎ、Ｂｉ、Ｚｒ、Ｔｉ及びＡｌからなる群から選択される少なくとも１種の金属原子を含有する有機金属化合物からなり、２０℃、大気圧条件下における水への溶解度が１ｇ／１００ｍｌ以下である疎水性硬化触媒と、グリフィン法により求められるＨＬＢ値が１０〜１５である非イオン性界面活性剤とを含有することを特徴とする水性塗料組成物。【選択図】なし