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    1.
    发明专利
    未知

    公开(公告)号：DE1520944A1

    公开(公告)日：1970-03-05

    申请号：DE1520944

    申请日：1961-01-26

    Applicant: STAMICARBON

    Inventor： HENDRIKS HENDRIK ,  VAN DEN BERG CORNELIS EMILE PE

    IPC: C08F8/00 ,  C08F8/42 ,  C08K5/56 ,  C08L23/26

    Abstract: The physical properties of polymers of monolefinically-unsaturated hydrocarbons are changed by subjecting the polymer to the action of an "active Ziegler catalyst" while suspended or dissolved in a liquid vehicle. By "active Ziegler catalyst" is meant a catalyst capable of polymerizing a monomer and which consists of at least one compound of a metal of Group IV to VI of the Mendel aeeff Periodic System, and a metal, hydride, or organometallic compound of Group I, II, or III. of the System. The aftertreatment of the polymers may be effected by polymerizing the monomers, in a liquid vehicle, in the presence of an amount of Ziegler catalyst in excess of that needed for polymerization. The treatment is generally carried out by maintaining the polymer in contact with the catalyst at a temperature of 60 DEG C. to 100 DEG C. for more than 2 minutes. The polymer may be polyethylene, polypropylene, poly-n-butylene, polystyrene, and copolymers of ethylene and propylene. The polymers aftertreated need not be made by the Ziegler process. The exemplified Ziegler catalysts are di-isobutyl aluminium hydride and TiCl4, and diethyl aluminium chloride and TiCl4. Polymers exemplied are polyethylene, polypropylene, and a copolymer of ethylene and butene-1.

    4.
    发明专利
    未知

    公开(公告)号：DE1933398A1

    公开(公告)日：1970-01-08

    申请号：DE1933398

    申请日：1969-07-01

    Applicant: STAMICARBON

    Inventor： VAN DEN BERG CORNELIS EMILE PE

    IPC: C08F210/00 ,  C08F15/40

    Abstract: A process for the preparation of amorphous copolymers of ethylene, one or more other alpha -alkenes, and optionally one or more compounds containing more than one C=C bond, using a catalyst comprising an aluminum dihalide, a vanadium compound and an organo metal compound, the catalyst being dispersed in a liquid dispersing agent.

    5.
    发明专利
    未知

    公开(公告)号：DE1593532A1

    公开(公告)日：1970-08-06

    申请号：DE1593532

    申请日：1966-02-10

    Applicant: STAMICARBON

    Inventor： VAN DEN BERG CORNELIS EMILE PE

    IPC: C07C2/46 ,  C08F4/70

    Abstract: 1,5,9-Cyclododecatriene is prepared by trimerizing 1,3-butadiene in a solvent with the aid of a catalyst composition comprising the combination of TiCl4, AlCl3, and an alkyl aluminium compound, ferric chloride being added to the catalyst. The alkyl aluminium compound is preferably either diisobutyl aluminium hydride or tri-isobutyl aluminium.

    7.
    发明专利
    未知

    公开(公告)号：DE1593533A1

    公开(公告)日：1970-08-06

    申请号：DE1593533

    申请日：1966-02-10

    Applicant: STAMICARBON

    Inventor： VAN DEN BERG CORNELIS EMILE PE

    IPC: C07C2/46 ,  C08F4/64

    Abstract: 1,5,9-Cyclododecatriene is prepared by trimerizing 1,3-butadiene in a solvent with the aid of a catalyst composition comprising the combination of TiCl4, AlCl3 and an alkyl aluminium compound, an amount of water not greater than 3 moles/mol. of TiCl4 being added to the catalyst. The water is preferably added to the catalyst composition after the components thereof have been mixed and allowed to react. The alkyl aluminium compound is preferably either diisobutyl aluminium hydride or triisobutyl aluminium.

    10.
    发明专利
    未知

    公开(公告)号：DE1520941A1

    公开(公告)日：1970-02-19

    申请号：DE1520941

    申请日：1960-06-07

    Applicant: STAMICARBON

    Inventor： VAN DEN BERG CORNELIS EMILE PE ,  HENDRIKS HENDRIK ,  JOSEPHUS MUYTJENS MATHIAS

    IPC: B01D11/04 ,  B01J19/28 ,  B08B3/12 ,  C07F9/165 ,  C08F6/24

    Abstract: Removing catalyst residues from a synthetic polymeric material by a process which comprises continuously passing impure polymeric material with a liquid (1) upwards within a column provided with internal obstructions, and continuously passing a liquid (2), heavier than liquid (1) and at least not completely miscible with (1), downwards within the column, at such a rate that liquid (1) forms a continuous phase in the column, and imparting to the liquids in the column flow pulses at substantially regular time intervals, e.g. by a pump, and continuously withdrawing purified polymeric material together with liquid (1), from the top section of the column, and liquid substantially free of polymeric material from the bottom section of the column. Liquid (1), may be the polymerization medium and it may contain the impure polymer as a dispersion, emulsion, or a solution. Before the polymer and liquid (1) is supplied to the base of the column, it may be treated with an alcohol such as water-free methanol, ethanol, isopropyl alcohol, or butanol, to which a small amount of an acid, or base, may be added. The liquid (2), may be water, water containing 96-70% by volume of methanol, or an alcohol thickened by a polar substance such as urea, sulphuric acid, sodium hydroxide, sodium acetate, acetic acid, ethylene glycol, or glycerol. A wetting agent may be present in liquids (1) or (2). The process may be carried out using two columns in series. In the examples the catalyst residues removed are of the Ziegler-type. The polymers purified may be homo- and copolymers of ethylene, propylene, 1-butene, isobutene, styrene, butadiene, isoprene, or chloroprene.

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