| 摘要 |
1,208,815. Polymerizing alpha - olefins. BADISHE ANILIN- & SODA-FABRIK A.G. 9 Feb., 1968 [11 Feb., 1967], No. 6430/68. Heading C3P. Polymers of one or more alpha-olefins are made by effecting the polymerization, at a temperature of from 10‹ to 150‹ C. and a pressure of from 0À5 to 100 atmospheres in thepresence of a catalyst system comprising (a) a complex compound of a Ti(halide) 3 and an aluminium halide modified with two different compounds selected from (i) a heterocyclic N-compound, a secondary amine, or a teritary amine, and (ii) a phosphorus compound of the formula where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> denote H, alkyl, aralkyl, aryl, alkylamino, aralkylamino or arylamino groups and in which in the case of the last three groups the nitrogen atom is directly attached to phosphorus, (b) an organoaluminium compound, and optionally (c) an organozinc compound. The modification of (a) by the two compounds includes the step of grinding (i) or (ii), or (i) and (ii) with (a). The grinding may be carried out in the presence of (b) and/or (c). The Specification contains lists of suitable reactants and catalyst components. The monomers homo- and copolymerized are one or more alpha-olefins with or without one or more other monoethylenically unsaturated hydrocarbons or acetylenes. Specified alphaolefins, of which propylene is exemplified, are ethylene, propylene, butene-1, 3-methylbutene, 4-methylpentene, and n-hexene. Specified mixtures are of ethylene and propylene. Exemplified catalyst components are 3.TiCl 3 . AlCl 3 , hexamethylphosphoric acid triamide, triphenyl phosphine oxide, gamma picoline, diethyl zinc, triethylaluminium, and diethyl aluminium chloride. The polypropylene may be fractionated by solvent extraction. |
