3.
    发明专利
    未知

    公开(公告)号:DE50002729D1

    公开(公告)日:2003-08-07

    申请号:DE50002729

    申请日:2000-01-05

    Abstract: The invention relates to a membrane that is produced by shaping a polymer or a polymer blend into the desired shape, charging it with a gas at hyperbaric pressure prior or after shaping it, expanding the polymer charged with gas above the glass transition temperature of the polymer/gas mixture and then cooling and stabilizing the expanded structure. The inventive method is characterized in that the polymer charged with gas is expanded with 0.05 to 4.5 wt.- % of a fluid dissolving or expanding the polymer. The inventive membrane is preferably used for medical purposes.

    6.
    发明专利
    未知

    公开(公告)号:ES2033518T3

    公开(公告)日:1993-03-16

    申请号:ES89201132

    申请日:1989-05-02

    Abstract: The invention relates to a mixer device with distributive mixing action for an extruder, an injection moulding machine and the like, comprising a hollow stator (4) and a rotor (6) arranged for rotation in said stator and distributively acting mixing means, characterized by at least one separate mixing ring (9) which is provided at least on its interior surface with said mixing means (10) and which is arranged between said rotor (6) and stator (4) around said rotor in a manner such that during mixing there is a positive rotational speed difference between said rotor (6) and said mixing ring (9), to the mixing ring and to the extruder and injection moulding machine comprising same.

    7.
    发明专利
    未知

    公开(公告)号:NL1015183C2

    公开(公告)日:2001-11-13

    申请号:NL1015183

    申请日:2000-05-12

    Abstract: The present invention relates to a device for electrochemically generating one or more gases under high pressure, comprising: a container (1, 6) comprising one or more chambers (7, 8) for filling with electrolyte; a first (2, 10) and a second (2, 11) electrode over which a voltage difference can be applied in order to bring about an electrochemical generation in the container (1, 6); wherein the content of a chamber (7, 8) is in the order of magnitude of a few millilitres or less.

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