Method for the production of a catalyst system for the...

Details Method for the production of a catalyst system for the... Method for the production of a catalyst system for the...

2002-09-30

2004-11-02

Rabago, Roberto (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S169100, C526S134000, C526S172000, C502S104000, C502S107000, C502S114000, C502S115000, C502S117000, C502S129000, C502S155000, C502S167000

Reexamination Certificate

active

06812305

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a process for preparing a catalyst system for the polymerization of olefins, which comprises initially charging one or more compounds of the formula I a or I b,
where the variables are defined as follows:
M is a transition metal of groups 5 to 10 of the Periodic Table of the Elements,
A is selected from among N, P and As,
A′ is selected from among O and S,
Nu
1
, Nu
2
are N or P,
X
1
, X
2
are halogen or C
1
-C
4
-alkoxy;
R
1
, R
2
are unsubstituted or substituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl, C
6
-C
14
-aryl or five- or six-membered N-containing heteroaryl,
R
3
, R
4
are hydrogen, unsubstituted or substituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl, C
6
-C
14
-aryl or five- or six-membered N-containing heteroaryl,
R
5
to R
7
are each selected independently from among hydrogen, unsubstituted or substituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl, C
6
-C
14
-aryl and five- and six-membered N-containing heteroaryl, halogen, C
1
-C
6
-alkoxy, NO
2
, SiR
8
R
9
R
10
and OSiR
8
R
9
R
10
where adjacent radicals together with the parent heteroaryl may form a 5- to 10-membered ring,
R
8
to R
10
are selected independently from among hydrogen and substituted or unsubstituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl and C
6
-C
14
-aryl; then adding a molecularly defined activator of the formulae II a to c
[(L—H)]
+
[(M′)Q
1
Q
2
Q
3
Q
4
]
−
  II a
 [(CAr
3
)]
+
[(M′)Q
1
Q
2
Q
3
Q
4
]
−
  II b
[(M′)Q
1
Q
2
Q
3
]  II c
where the radicals have the following meanings:
[L—H]
+
is a Brønsted acid, where L is an electron-neutral Lewis base,
M′ is an element of group 13 of the Periodic Table of the elements,
Q
1
to Q
4
are selected independently from among hydride, unsubstituted or substituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl, C
6
-C
14
-aryl and halide, with the proviso that not more than two radicals Q
1
and Q
2
are halide;
Ar are identical or different and are selected from among unsubstituted or substituted C
6
-C
14
-aryl,
and finally adding an alkylating agent selected from among LiR
11
, MgR
11
R
12
and AlR
12
R
13
R
14
, where
R
11
to R
14
are selected independently from among unsubstituted or substituted C
1
-C
12
-alkyl, C
3
-C
12
-cycloalkyl, C
7
-C
15
-aralkyl and C
6
-C
14
-aryl.
The present invention also provides the catalyst system prepared by the abovementioned process and provides a process for the polymerization and copolymerization of olefins using this catalyst system.


REFERENCES:
patent: 0 277 004 (1988-08-01), None
patent: 0 468 537 (1992-01-01), None
patent: 0 561 479 (1993-09-01), None
patent: 96/23010 (1996-08-01), None
patent: 98/27124 (1998-06-01), None
patent: WO98/27124 (1998-06-01), None
patent: 98/30612 (1998-07-01), None
patent: WO99/12981 (1999-03-01), None
patent: 99/12981 (1999-03-01), None
Hans-Herbert Brintzinger et al.: “Stereospezifische olfinpolymerisation mit chiralen metalloceakatalysatoren” Angew. Chem., vol. 107, pp. 1255-1283.
George J.P. Britovsek et al.: “Iron and cobalt ethylene polymerization catalysts bearing 2,6-bis(imino)pyridyl ligands: synthesis, structures, and polymerization studies” J. Am. Chem., vol. 121, pp. 8728-8740 1999.
George J.P. Britovsek et al.: “Novel olefin polymerization catalysts based on iron and cobalt” Chem. Commun., pp. 849-850 1998.
Brooke L. Small et al.: “Highly active iron and cobalt catalysts for the polymerization of ethylene” J. Am. Chem. Soc., vol. 120, pp. 4049-4050 1998.
X. Yang et al.: “Cation-like' homogenous olefin polymerization catalysts based upon zirconocene alkyls and tris(pentafluorophenyl)borane” J. Am. Chem., vol. 113, No. 9, pp. 3623-3625 1991.

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