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    • 3. 发明授权
    • Organometallic compositions
    • 有机金属组合物
    • US06288255B1
    • 2001-09-11
    • US09456583
    • 1999-12-08
    • Christopher John Skinner
    • Christopher John Skinner
    • C07F700
    • C07F7/003
    • An organometallic composition comprises a complex of at least one metal selected from the group consisting of titanium, zirconium and hafnium and an acetoacetate ester in which the molar ratio of Ti or Hf to acetoacetate ester is in the range 1:2.5 to 1:10 or the molar ratio of Zr to acetoacetate ester is in the range 1:4.5 to 1:10 and said acetoacetate ester is an ester of an alcohol containing 1 to 6 carbon atoms. The organometallic composition is useful in polyisocyanate compositions, particularly those used as binders for lignocellulosic materials, and polyisocyanate compositions containing the organometallic compositions of the invention have good stability on storage.
    • 有机金属组合物包含选自钛,锆和铪中的至少一种金属和乙酰乙酸酯的络合物,其中Ti或Hf与乙酰乙酸酯的摩尔比在1:2.5至1:10的范围内,或 Zr与乙酰乙酸酯的摩尔比为1:4.5〜1:10,所述乙酰乙酸酯为含有1〜6个碳原子的醇的酯。 有机金属组合物可用于多异氰酸酯组合物,特别是用作木质纤维素材料的粘合剂的组合物,以及含有本发明的有机金属组合物的多异氰酸酯组合物在储存时具有良好的稳定性。