Interference No. 103,303 and 1-butene with catalysts obtained from isopropyl (cyclopentadienyl- 1-fluorenyl) hafninum or zirconium dichloride and polymethyl- aluminoxane cyclic or linear compounds of the formula (A1)O)n * CH3 -3-Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007