Interference No. 103,303
where n is a number from 2 to 25 and
CH )(A1)O) A1(CH ) .
3 n 3 2
*
CH3
where n is a number from 1 to 25, operating under conditions
where the 1-butene molar content present in the gas mixture
being continuously fed is from 1.5 to 10%, and the
polymerization is conducted in the liquid phase, at a
temperature of from -30E to 70EC,
or
the polymerization of propylene and butene with catalysts
obtained from isopropyl (cyclopentadienyl-1-fluorenyl) hafnium
dichloride or isopropyl (cyclopentadienyl-1-fluorenyl)
zirconium dichloride and polymethylaluminoxane cyclic or
linear compounds of the formula
CH
3
ª
CH )(A1)O) )A1
3 n
* (
CH CH
3 3
or
+)))))))),
.)(A10) ) -
n
*
CH
where n is at least 5, operating under conditions where the
ratio of butene to the total constitutional monomer units of
the copolymer is from 1 to 24 mole %, and the polymerization
is conducted in the liquid phase, at a temperature of from -
100EC to 100EC.
-4-
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Last modified: November 3, 2007