PROCESS FOR PRODUCING POLYMERS OF ALKENES BY SUSPENSION POLYMERISATION
Polymers of alkenes are prepared by suspension polymerization in the presence of catalyst systems by a process in which the catalyst systems used are supported catalyst systems obtainable by A) reaction of an inorganic carrier with a metal compound of the general formula I M 1 (R 1 ) r (R 2 ) s (R 3...
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| Main Authors | , , , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
24.05.2001
|
| Online Access | Get full text |
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| Summary: | Polymers of alkenes are prepared by suspension polymerization in the presence of catalyst systems by a process in which the catalyst systems used are supported catalyst systems obtainable by
A) reaction of an inorganic carrier with a metal compound of the general formula I
M
1
(R
1
)
r
(R
2
)
s
(R
3
)
t
(R
4
)
u
I
where
M
1
is an alkali metal, an alkaline earth metal or a metal of main group III or IV of the Periodic Table,
R
1
is hydrogen, C
1
-C
10
-alkyl, C
6
-C
15
-aryl, alkylaryl or arylalkyl, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical,
R
2
to R
4
are each hydrogen, halogen, C
1
-C
10
-alkyl, C
6
-C
15
-aryl, alkylaryl, arylalkyl, alkoxy or dialkylamino, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical,
r is an integer from 1 to 4 and
s, t and u are integers from 0 to 3, the sum r+s+t+u corresponding to the valency of M
1
,
B) reaction of the material obtained according to A) with a metallocene complex in its metal dihalide form and a compound forming metallocenium ions and
C) subsequent reaction with a metal compound of the general formula II
M
2
(R
5
)
o
(R
6
)
p
(R
7
)
q
II
in which
M
2
is an alkali metal, an alkaline earth metal or a metal of main group III of the Periodic Table,
R
5
is hydrogen, C
1
-C
10
-alkyl, C
6
-C
15
-aryl, alkylaryl or arylalkyl, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical,
R
6
and R
7
are each hydrogen, halogen, C
1
-C
10
-alkyl, C
6
-C
15
-aryl, alkylaryl, arylalkyl or alkoxy, each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical,
o is an integer from 1 to 3 and
p and q are integers from 0 to 2, the sum o+p+q corresponding to the valency of M
2
. |
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