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Process for preparation of a catalyst complex of hidrossililacao platinum olefin complex platinum - alcenilciclo - hexenoe structure organopolis - siloxanica
Process for preparation of a catalyst complex of hidrossililacao platinum olefin complex platinum - alcenilciclo - hexenoe structure organopolis - siloxanica
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机译:希斯拉西考奥铂烯烃复合物的催化剂配合物的制备方法铂-阿塞尼西洛-己烯结构有机硅-硅氧烷
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摘要
Novel platinum/olefin complexes, useful for the hydrosilylation curing catalysis of hardenable organopolysiloxane compositions, are facilely prepared by reacting a platinum halide with at least one alkali or alkaline earth metal carbonate or bicarbonate in the presence of an alkenylcyclohexene ligand having the general formula: IMAGE (I) wherein R1 is an alkenyl radical having from 2 to 6 carbon atoms, and R2 is a hydrogen atom or an inert organic radical, and said complex having a ratio, in gram-atoms of halogen to gram-atoms of platinum, ranging from virtually 0 to 4.
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