Production method of syndiotacticity poke / isotacticity poke Bro get polio Lev-in

摘要

PROBLEM TO BE SOLVED: To produce a block polyolefin by adding a specified metallocene catalyst to a polymerization reaction zone containing an olefin monomer and polymerizing it. ;SOLUTION: This polymer is obtained by adding a metallocene-containing catalyst represented by the formula [wherein (C₅R₄) is a substituted cyclopentadienyl ring, one of Rs is a terminal substituent having a spatial displacement as large as that of trimethylsilyl, and the rest are hydrogen atoms; (C₅R₄) lacks in symmetry, (C₄R'_mC₅C₄R'_n) is a (substituted) fluorenyl ring; R' is H, a 1-20C hydrocarbyl, a halogen, an alkoxyl, an alkoxyalkyl or an alkylamino, R" is a structural bridge between the (C₅R₄) ring and the (C₄R'₄C₅C₄ R'₄) ring; Q is a 1-20C hydrocarbyl or a halogen; Me is a group IIIB, IVB, VB or VIB metal; and p is a number equal to the valence of M minus 2] to a polymerization reaction zone containing an olefin monomer and polymerizing the monomer.;COPYRIGHT: (C)1997,JPO