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Hoechst AG
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Hoechst AG
Farbwerke Hoechst AG
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Publication of ES353978A1publicationCriticalpatent/ES353978A1/en
Transition And Organic Metals Composition Catalysts For Addition Polymerization
(AREA)
Abstract
Process for the polymerization of ethylene as well as its mixtures with up to 10% by weight of higher alpha-olefins in solution, suspension or in gas phase, at temperatures of 20º -250º, and preferably of 60º to 130º, at pressures of 0 at 10 relative atmospheres, and preferably from 2 to 6 relative atmospheres, with a mixed catalyst constituted by a chlorinated compound of trivalent titanium in a concentration of 0.03 to 0.5 mmol per liter of dispersing agent, and respectively 0, 5 l. Of reactor volume, and an alumino-organic component in a concentration of 0.01 to 3 mmol of aluminum per liter of dispersing agent and respectively of reactor volume, with regulation by hydrogen of the average molecular weight, characterized in that the polymerization is carried out with a mixed catalyst whose alumino-organic component has been obtained by transformation of acetylene or acetylene derivatives with aluminum hydrocarbons whose organyl residues contain 1-10 carbon atoms, and preferably 3-6 carbon atoms. (Machine-translation by Google Translate, not legally binding)
ES353978A1967-05-201968-05-17Procedure for the obtaining of poliolephins. (Machine-translation by Google Translate, not legally binding)
ExpiredES353978A1
(en)
Synthesis and x-ray structural characterization of the metal borylamide complexes Li (Et2O) 2NPhBMes2,(THF)(Et2O) 2LiClCo {NPhBMes2} 2, and Mn {NMesBMes2} 2. cntdot. 3PhMe (Mes= 2, 4, 6-Me3C6H2): modified amide ligands with poor bridging and. pi.-donor characteristics
Catalyst suitable for use in the polymerization of unsaturated compounds the polymerization processes employing such catalysts and products obtained by the processes