CATALISADORES ORGANOMETALICOS E SUA UTILIZACAO PARA A POLIMERIZACAO E COPOLIMERIZACAO DE ALFA-OLEFINAS

摘要

Catalyst component for the polymerisation of alpha-olefins of general formula (I) Wherein M is a transition metal of groups 3, 4-10 of the periodic table of the elements. Each X group is equal or different and it is hydride, halogen, alkyl, cycloalkyl, aryl, alkenyl, arylalkyl, arylalkenyl or alkylaryl with 1 to 20 carbon atoms. L is a neutral Lewis base. A is a ring with delocalized pi electrons. Each E group is equal to or different from each other and it is BR, CR2, SiR2, GeR2. D is O, S, PR.