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    Production of propylene polymers with improved impact resistance
    22.
    发明专利
    Production of propylene polymers with improved impact resistance 未知

    公开(公告)号：GB1109863A

    公开(公告)日：1968-04-18

    申请号：GB3430465

    申请日：1965-08-11

    Applicant: BASF AG

    Inventor： STEDEFEDER JOACHIM ,  WEBER HEINZ ,  HANSEN KARL-FRIEDRICH ,  SCHNELL GEORG ,  SCHMIEDER KARL

    IPC: C08F297/06

    Abstract: Block copolymers are made by a process in which propylene, ethylene and a vinyl aromatic compound are polymerized in such a way that alternately one of the three monomers is present in an amount which is greater than the amount of each of the other two monomers so that polymers are obtained which contain 0.4-20% by weight of ethylene units and 0.4-20% by weight of vinyl aromatic units in addition to propylene units, the polymerization being carried out at temperatures of 0-150 DEG C., at pressures of 1-100 atmospheres and in the presence of catalysts which are mixtures of organometallic compounds of metals of Groups I, II and III and compounds of transition metals of Groups IVa to VIa of the Mendeleef Periodic Table. Vinyl aromatic compounds specified are styrene, vinyl toluenes and chlorostyrenes. The examples describe making block copolymers from propylene, ethylene and styrene, polymerization being carried out with the catalyst mixture either in light naphtha or in finely-divided polypropylene, the catalysts being formed from titanium trichloride and aluminium diethyl chloride. In certain of the described processes polymerization is carried out in the presence of hydrogen, triphenylbutyl phosphonium bromide or triphenylphosphine oxide as a regulator.

    Production of copolymers from aromatic compounds and monoolefines
    23.
    发明专利
    Production of copolymers from aromatic compounds and monoolefines 未知

    公开(公告)号：GB1092137A

    公开(公告)日：1967-11-22

    申请号：GB1032165

    申请日：1965-03-11

    Applicant: BASF AG

    Inventor： NAARMANN HERBERT ,  KASTNING ERNST-GUENTHER ,  SCHNELL GEORG

    IPC: C08F2/00 ,  C08F10/00 ,  C08F210/00

    Abstract: Copolymers of mono-olefines and aromatic compounds are made by reacting at least one mono-olefin with at least one aromatic compound selected from aromatic hydrocarbons, thiophene and substitution products of thiophene at a temperature higher than - 100 DEG C. in the presence of a catalyst comprising (a) at least one halide of a metal of Groups III and/or IV of the Mendeleef Periodic System having an atomic weight up to 120; and (b) at least one metal compound containing metal ions having a redox potential of at least + 0.16 volt, and optionally (c) at least one organometallic compound of a metal of Groups I to IV. Suitable mono-olefines are ethylene, propylene, butene-1, 4-methylpentene-1, and octene-1. The aromatic compound may be benzene, toluenes, xylenes, diisopropylbenzene, diphenyl, terphenyl, naphthalene, alpha-methylnaphthalene, anthracene, thiophene, ethyl and methyl-substituted thiophenes, and benzothiazole. Compound (a) may be BF3 and its etherates, AlBr3, AlCl3, TiCl4, TiI4, TiCl3, SnCl4, and complexes of TiCl3 and AlCl3. Compound (b) may be MoCl5, MnCl4, FeCl3, CeCl4, PbCl4, VOCl3, cobalt tri(acetylacetone), copper dipyridyl, or potassium hexacyanomanganate. Compound (c) may be an alkyl, aryl and/or aralkyl compound of Na, K, Be, Mg, Cd, Sn, or Al. The aromatic compounds and/or the monoolefins may function as diluents for the polymerization. The polymers are recovered conventionally.

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