Lanthanide-based catalyst composition for the manufacture of polydienes

   
   

A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an lanthanide compound, (b) an alkylating agent, (c) a nickel-containing compound, and optionally (d) a halogen-containing compound, with the proviso that the halogen-containing compound must be present where none of the lanthanide compound, the alkylating agent, and the nickel-containing compound contain a labile halogen atom.

Состав катализатора комбинация или продукт реакции ингридиентов состоя из (a) смеси лантаноида, (b) алкилируя вещество, (c) nickel-containing смесь, и опционно (d) halogen-containing смесь, with the proviso that halogen-containing смесь должна присутствовать где никакая из смеси лантаноида, алкилируя вещества, и nickel-containing смеси содержат лабильный атом галоида.

 
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