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compounds metallocenici bis - indenilici pontanti process for their preparation and their use as catalysts for the polymerization of olefins
compounds metallocenici bis - indenilici pontanti process for their preparation and their use as catalysts for the polymerization of olefins
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机译:化合物金属烯双茚基蓬蒂帝的制备方法及其用作烯烃聚合催化剂
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摘要
Metallocene compounds with two indenyl-type ligands linked in the 4 position by means of a divalent bridging group can be suitably used as components of catalysts for the polymerization of olefins. In particular, it is possible to prepare saturated or unsaturated elastomeric copolymers of ethylene characterized by valuable properties, such as low ash content and uniform distribution of the comonomers in the polymer chain. Metallocenes of the following generic structure are disclosed:
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