SILICONE COMPOSITION THAT CAN BE CURED IN THE PRESENCE OF WATER OR ATMOSPHERIC MOISTURE

PROBLEM TO BE SOLVED: To provide a composition which is equivalent to or more excellent than tin-based catalysts in performance from the standpoint of kinetics, and allows curing of the elastomers that is equivalent to or better than elastomers produced by using tin-based catalysts, and leads to translucent materials that do not become yellow over time, and retains its performance in the absence or in the presence of an adhesion promoter.SOLUTION: There is provided a composition that can be cured in the presence of water or atmospheric moisture comprising: (A) at least one polyorganosiloxane A having one or more condensable groups or hydrolyzable and condensable groups; and (B) at least one compound C that is capable of catalysing the condensation reaction of the condensable groups or hydrolyzable and condensable groups of the polyorganosiloxane A and is a heterometallic complex represented by a specific general formula.SELECTED DRAWING: None 【課題】反応速度の観点からスズ系触媒と同等又はそれよりも優れた性能を有し、スズ系触媒を用いて得られるものと同等又はそれよりも良好なエラストマーの硬化を可能にし、時間の経過とともに黄変しない半透明の材料をもたらし、接着促進剤の非存在下又は存在下でその性能を維持することのできる組成物の提供。【解決手段】この課題は、水及び大気中の水分の存在下で硬化できる組成物であって、（Ａ）１個以上の縮合性基又は加水分解性で縮合性の基を有する少なくとも１種のポリオルガノシロキサンＡ、及び（Ｂ）ポリオルガノシロキサンＡの縮合性基又は加水分解性で縮合性の基の縮合反応を触媒することができ、かつ、特定の一般式で表されるヘテロ金属錯体である少なくとも１種の化合物Ｃを含む組成物によって解決される。【選択図】なし