| 摘要 |
A catalyst for polymerizing olefins consists of the sintered solid component of chromium compd. supported on an inorganic oxide carrier and an organic magnesium complex compd. of formula AlαMgβRp1Rq2Rr3XsYt, which is soluble in an inactive hydrocarbon. αandβ are greater than o;p,q,r,s, and t are 0 or greater; 0<(s+t)/α+β<=1.5 or p+q+r+s+t=3α+2β; R1, R2, and R3 are the same or different C1-20; X and Y are the same or different OR4, OSiR5R6R4, NR8R9, or SR10; R4, R5, R6, R7, R8, and R9 are H or hydrocarbon; and R10 is hydrocarbon
|
