Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
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.
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patent: 4136057 (1979-01-01), Candlin et al.
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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.
Delmendo Romulo H.
Solvay (Soci et e Anonyme)
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