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    11.
    发明专利
    未知

    公开(公告)号：DE2658937A1

    公开(公告)日：1978-07-06

    申请号：DE2658937

    申请日：1976-12-24

    Applicant: BASF AG

    Inventor： MUELLER-TAMM HEINZ DR ,  SCHICK HANNES DR ,  JAGGARD JAMES F R ,  NICKL JOHANN DR

    IPC: C08F4/00 ,  C01G23/02 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F4/16

    Abstract: A process for the manufacture of a titanium-containing component of a catalyst for the polymerization of monoolefins by the Ziegler-Natta method by milling (a) a titanium trichloride/aluminum trichloride complex and (b) a particular ether with one another, in which process (1) a vibratory ball mill producing a particular milling acceleration is used, (2) until from 6 to 85% of the aluminum trichloride originally present in a bonded form in the titanium-containing compound (a) have been eliminated from the said compound (a). Polyolefins of high stereoregularity can be obtained in a high specific yield by means of the catalyst component manufactured according to the invention.

    13.
    发明专利
    未知

    公开(公告)号：DE2406900A1

    公开(公告)日：1975-08-28

    申请号：DE2406900

    申请日：1974-02-14

    Applicant: BASF AG

    Inventor： MUELLER-TAMM HEINZ DR ,  NICKL JOHANN DR ,  SCHICK HANNES DR

    IPC: C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F4/60 ,  C08F10/00 ,  C08F10/14 ,  C08F110/14

    Abstract: Homopolymers of 4-methylpentene-1 are prepared by homopolymerization of 4-methylpentene-1 at a temperature above room temperature, in the presence of hydrogen and in contact with a Ziegler/Natta catalyst system. The polymerization is carried out at a relatively very high temperature and in the presence of an inert gas, the polymerization system being under a specific total pressure, while the partial pressures of the inert gas and the hydrogen have specific values. In this way, homopolymers having large crystalline fractions are obtained in high yields per unit of catalyst system per unit time.

    16.
    发明专利
    未知

    公开(公告)号：DE2658939A1

    公开(公告)日：1978-07-06

    申请号：DE2658939

    申请日：1976-12-24

    Applicant: BASF AG

    Inventor： MUELLER-TAMM HEINZ DR ,  SCHICK HANNES DR ,  JAGGARD JAMES F R DR ,  NICKL JOHANN DR

    IPC: C08F4/00 ,  C01G23/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/651 ,  C08F10/00 ,  C08F4/16

    Abstract: A process for the manufacture of a titanium-containing component of a catalyst for the polymerization of monoolefins by the Ziegler-Natta method by milling (a) a particular titanium-containing compound, viz. a titanium trichloride/aluminum trichloride complex and (b) a particular ester with one another, in which process (1) a vibratory ball mill producing a particular milling acceleration is used, (2) the mill is first charged with the titanium-containing compound (a) and may or may not then be run for some time in the absence of diluents, (3) while milling, the ester (b) is added at a particular rate, continuously or in small portions, and in the absence of diluents, thereafter (4) the grist is brought to an elevated temperature, while milling, and is kept at this temperature until from 5 to 85% of the aluminum trichloride originally present in a bonded form in the titanium-containing compound (a) have been eliminated from the said compound (a), after which (5) if appropriate, the product obtained in accordance with (4) is washed with a hydrocarbon and dried, and then (6) the product obtained in accordance with (4) or in accordance with (5) is milled for a certain length of time at a low temperature in the absence of a diluent. Polyolefins of high stereoregularity can be obtained in a high specific yield by means of the catalyst component manufactured according to the invention.

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