Process for the preparation of an olefin polymer using metalloce

Details Process for the preparation of an olefin polymer using metalloce Process for the preparation of an olefin polymer using metalloce

1993-08-03

1995-10-03

Nazario-Gonzales, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 8, 556 11, 556 12, 556 14, 556 21, 556 27, 556 28, 556 43, 556 53, 556 81, 556 87, 502117, 502152, 526126, 526160, C07F 1700, C07F 900, C07F 728, C07F 1100

Patent

active

054553652

ABSTRACT:
Process for the preparation of an olefin polymer using metallocenes containing specifically substituted indenyl ligands
A highly effective catalyst system for the polymerization of olefins comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are alkyl or halogen, R.sup.5 is hydrogen or alkyl, R.sup.3 and R.sup.4 are alkyl, where R.sup.3, R.sup.4 and R.sup.5 may be halogenated, --(CR.sup.7 R.sup.8).sub.m --R.sup.6 --(CR.sup.7 R.sup.8).sub.n -- is a single- or multi-membered chain in which R.sup.6 may also be a (substituted) heteroatom, and m+n is zero or 1.

REFERENCES:
patent: 5004820 (1991-04-01), Buchwald et al.
patent: 5120867 (1992-06-01), Welborn, Jr.
patent: 5145819 (1992-09-01), Winter et al.
patent: 5329031 (1994-07-01), Miyake et al.
patent: 5329033 (1994-07-01), Spaleck et al.
patent: 5374752 (1994-12-01), Winter et al.
Chemical Abstracts, vol. 117, 1992, Lee et al, Electronic Effects of Ziegler-Natta Polymerization of Propylene and Ethylene Using Soluble Metallocene Catalysts.
Journal of the American Chemical Society, Bd. 115, Jul. 14, 1993, J. R. Hart, Predicted Structure Selectivity Trends: Propylene Polymerization with Substituted Rac-(1,2,-Ethylenebis(.ETA.5-Indenyl)Zirconium (IV) Catalysts.

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