A supported solid catalyst for the polymerization of conjugated dienes, a method for its production and polymerization process using the same

摘要

The present invention relates to a solid supported catalyst for polymerizing conjugated dienes, a process for the preparation of the catalyst and a process for polymerizing conjugated dienes which consists in using said catalyseur.un solid supported catalyst according to the invention comprises the product of the réactiona) of a complex represented by the formula m (ar) (alx4) 3, where m is a rare earth metal selected from among the metals with atomic numbers between 57 and 71 in the periodic table of elements of mendeleev, in which ar is an aromatic hydrocarbon solvent, which is the aluminum and, where x is a halogen can be fluorine, chlorine, bromine or iodine, b) of a solid support comprising at least one compound of metal oxide inorganique.un polymerization process according to the invention of conjugated dienes, in an inert hydrocarbon solvent, consists in using the catalyst and to be added to it an activator compound comprising a trialkylaluminum or a hydride of dialkyl aluminium.l' invention applies, for example, to a catalyst comprising a solid support based on silica.