Interference No. 103,303
wherein 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.
Asanuma et al.'s claim 16 reads as follows:
16. A process for the preparation of the copolymers of
claim 11 comprising 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
-21-
Page: Previous 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Next
Last modified: November 3, 2007