Process for the manufacture of a catalytic solid, catalytic soli

Details Process for the manufacture of a catalytic solid, catalytic soli Process for the manufacture of a catalytic solid, catalytic soli

1995-03-27

1997-05-20

Delmendo, Romulo H.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526116, 526118, 526119, 5261231, 5261243, 5261244, 5261245, 5261247, 5261248, 502104, 502107, 502111, 502113, 502151, 502169, 502224, 502226, 502227, 502231, C08F 4655

Patent

active

056313349

ABSTRACT:
Catalytic solid for the (co)polymerisation of at least one olefin, comprising a coprecipitate of magnesium and of at least one transition metal, obtained by means of a process comprising the preparation of a mixture of a magnesium compound, such as the chloride or a magnesium alcoholate, and of a compound denoted by one of the formulae MY.sub.x (O--R').sub.t-x and M'O.sub.y (O--R").sub.s-2y and the treatment of the resulting mixture with a complex of formula M"(A)Al.sub.2 (X',X").sub.8 where X' and X" denote halogens, M and M' transition metals of groups IVB and VB, M" a transition metal of group IVB, A an aromatic hydrocarbon, Y a halogen or a group (O--R'"), and R', R" and R'" an alkyl, aryl or cycloalkyl group.

REFERENCES:
patent: 3494873 (1970-02-01), Vohwinkel et al.
patent: 4121030 (1978-10-01), Candlin et al.
patent: 4136057 (1979-01-01), Candlin et al.
patent: 4218339 (1980-08-01), Zucchini et al.
Helena Antropiusov a et al, "Preparation Of Hologen-Modified Titanium (II) Arene Complexes and Their Electronic Spectra", Transition Met. Chem., 1978, pp. 127-130.
S. Pasynkiewicz et al, "The Synthesis Of Titanium (II) Complexes Containing Methylbenzene Ligands", Journal of Organometallic Chemistry, 54, 1973, pp. 203-205.

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