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    Production of propylene polymers by polymerization of propylene using ziegler catalysts
    45.
    发明专利
    Production of propylene polymers by polymerization of propylene using ziegler catalysts 未知

    公开(公告)号：GB1079544A

    公开(公告)日：1967-08-16

    申请号：GB4805064

    申请日：1964-11-26

    Applicant: BASF AG

    Inventor： WEBER HEINZ ,  SCHNEIDER PAUL ,  WINDERL SIEGFRIED ,  FLICKINGER ERICH

    IPC: C08F10/06

    Abstract: Propylene polymers are produced by homopolymerization or copolymerization of propylene using a catalyst composed of an organometallic compound or metal hydride and a compound of a transition metal of Groups IV to VI of the Mendeleef Periodic System at a temperature of from - 20 DEG to + 160 DEG C. and a pressure of from atmospheric pressure to 25 atmospheres wherein the polymerization is carried out in the presence of an ethylenically unsaturated halogen compound which is a substituted alkene containing three or four carbon atoms and at least two chlorine and/or bromine atoms and having a terminal double bond, one of the halogen atoms being bound in the 1- or 2-position and another halogen atom being bound in the 3 position of the substituted alkene. Polymers produced are polypropylene, copolymers of ethylene/propylene, propylene/butene-1, and a terpolymer of ethylene / propylene / dicyclopentadiene. Unsaturated halogen compounds exemplified are 2,3 - dichloropropene - 1, 1,2 - dibromo - 3 - chlorobutene - 1 and 1,2,3 - trichloropropene-1. Also specified are 2-chloro-3,4-dibromobutene-1 and 1,2,3 - trichlorobutene - 1. Catalysts exemplified are 3TiCl3.AlCl3 with diethyl aluminium chloride, triisobutyl aluminium, butyl lithium or lithium aluminium hydride, and VOCl3 with diethyl aluminium chloride or methyl aluminium sesquichloride. Polymerization is effected in organic solvents such as petroleum ether alone or mixed with trichloroethylene, and cyclohexane. In one example, propylene is polymerized first with lithium aluminium hydride and then 3TiCl3.AlCl3 is added and the polymerization is completed. The unsaturated halogen compound acts as a molecular weight regulator. Conventional co-catalysts for increasing the stereospecificity of the catalyst may be co-employed. In a comparative example, 2-methyl-4-chlorobutene-2 is used as a regulator.

    Substituted thiophosphoric esters and insecticidal compositions containing them
    47.
    发明专利
    Substituted thiophosphoric esters and insecticidal compositions containing them 未知

    公开(公告)号：GB924657A

    公开(公告)日：1963-05-01

    申请号：GB4365461

    申请日：1961-12-06

    Applicant: BASF AG

    Inventor： DICKHAEUSER HEINER ,  POHLEMANN HEINZ ,  STUMMEYER HERBERT ,  ADOLPHI HEINRICH ,  WINDERL SIEGFRIED

    IPC: C07F9/165

    Abstract: The invention comprises compounds of the formula: where R1 and R2 are alkyl radicals, X is oxygen or sulphur, Y is a radical NR3R4 wherein R3 and R4 are hydrogen or alkyl or R3 and R4 together with the nitrogen make up a heterocyclic ring, and Z is a radical NR3R4 as defined or an alkoxy radical. These compounds are prepared by reacting a salt of an O, O - dialkylthiolphosphoric acid or O, O-dialkyldithiophosphoric acid with a compound ZCO.CHHal.COY; or by reacting a compound ZCO.CH(SH).COY or a salt thereof with an O,O-dialkylthionophosphoric acid chloride or O,O-dialkylphosphoric acid chloride. The compounds of the invention are insecticides (see Group VI).ALSO:The invention comprises insecticidal compositions containing a compound of formula where R1 and R2 are alkyl radicals, X is oxygen or sulphur, Y is a radical NR3R4 wherein R3 and R4 are hydrogen or alkyl or R3 and R4 together with the nitrogen make up a heterocyclic ring, and Z is a radical NR3R4 as defined or an alkoxy radical (see Group IV (b)). These compounds may be made up as dusts by adding solid extenders, as sprays by adding dispersing, wetting and/or sticking agents to solid or liquid preparations, or as solutions or emulsions. Fungicides and/or other insecticides may be incorporated in the compositions. Examples use aqueous emulsions.

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