Catalysts for polymerizing olefins

Details Catalysts for polymerizing olefins Catalysts for polymerizing olefins

1976-03-26

1978-11-07

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431C, 252431N, 526114, 526125, C08F 464, C08F 468

Patent

active

041245326

ABSTRACT:
New catalysts for the polymerization and copolymerization of olefins are disclosed. The catalysts are prepared from (1) a new class of metal complexes of general formula M.sub.m M'X.sub.2m Y.nE, in which M is Mg, Mn and/or Ca; m is a number from 0.5 to 2.0; M' is Ti, V and/or Zr; X is Cl, Br or I; Y is one or more atoms or groups of atoms of various kinds in an amount such as to satisfy the valence of M'; n is a number from 0.5m to 20m; and E is an electron-donor compound; and (2) organometallic compounds of metals belonging to one of Groups I to III of the Mendelyeev Periodic Table.

REFERENCES:
patent: 3583958 (1971-06-01), Sasaki et al.
patent: 3755284 (1973-08-01), Yamawaki et al.
patent: 3859231 (1975-01-01), Kochhar et al.
patent: 3989881 (1976-11-01), Yamaguchi et al.
Lapporte et al., J. Org. Chem., 28 (Jul. 1963), pp. 1947-1948.

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