Polymerization of ethylene in the presence of inorganic salt hydrates

Polymerization of ethylene in the presence of inorganic salt hydrates

Polyethylene is made by polymerizing ethylene in an inert diluent with a catalyst consisting of aluminium, AlCl3 and either TiCl4 or hydrogen and VCl4, in the proportion of 1 to 12, preferably 1 to 3, gm. atom of Al and 0.3 to 3, preferably 0.5 to 2, moles of AlCl3 per mole of TiCl4 or VCl4, and an...

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Bibliographische Detailangaben
Hauptverfasser: LUCCHESI PETER, KIRSHENBAUM ISIDOR
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:Polyethylene is made by polymerizing ethylene in an inert diluent with a catalyst consisting of aluminium, AlCl3 and either TiCl4 or hydrogen and VCl4, in the proportion of 1 to 12, preferably 1 to 3, gm. atom of Al and 0.3 to 3, preferably 0.5 to 2, moles of AlCl3 per mole of TiCl4 or VCl4, and an inorganic salt hydrate which gives up a substantial proportion of its water of hydration at a minimum temperature of about 100 DEG C. The hydrate may Ba Cl2.2H2O, MnSO4. H2O, Cu(NO3)2. 3H2O, or AlCl3.6H2O. The hydrates may be incorporated in the catalyst as a dispersion in a diluent, or after the other components have been ball-milled. Specification 975,143 is referred to.