| abstract |
<B> "METALLOCENE CONNECTED IN BRIDGE BY METHYLENE, CATALYST FOR POLYMERIZATION OF OLEFINS, BINDER AND PROCESS FOR BINDER PREPARATION" <D>. A new class of metallocene-linked metallocenes of formula (I): where M is a transition metal belonging to groups 3, 4, 5, 6, lanthanides or actinides; X is a monoanonic sigma linker; R can be an alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl radical; R can be halogen, alkyl radical, cycloalkyl, aryl, alkylaryl or arylalkyl; p is 0 to 3; m is 0 to 2; and n is 0 to 4. In addition, the corresponding ligands, a new process for their preparation and catalytic systems containing said metallocene bridged by methylene are described. |