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    25.
    发明专利
    未知

    公开(公告)号：DE4218719A1

    公开(公告)日：1993-12-09

    申请号：DE4218719

    申请日：1992-06-06

    Applicant: BASF AG

    Inventor： MATTHIES PAUL DR ,  HAHN KARL DR ,  MELL KARLHEINZ ,  SAUER THOMAS DR ,  WEINERTH KLAUS DR ,  LAUN MARTIN DR ,  HABERKORN HERBERT DR

    IPC: C08G69/14 ,  C08G69/16 ,  D01F6/60 ,  D01F6/90 ,  D01D5/08 ,  D01D5/12

    Abstract: Filaments with a relative viscosity RV of 2.0 to 3.0 (measured at a concentration of 1 g of fibres per 100 ml in a 96 wt % sulphuric acid) based on polycaprolactam, obtainable by: (a) extruding a melt consisting essentially of caprolactam through a spinning nozzle to form caprolactam filaments; (b) cooling the filaments thus produced and (c) drawing the cooled filaments off at a rate of at least [3600 + 1250.(3.0 - RV)] m/min, the polycaprolactam used being produced in the presence of at least one bicarboxylic acid from the group: C4-C10-alkane bicarboxylic acids, C5-C8-cycloalkane bicarboxylic acids, benzole and naphthaline bicarboxylic acids which may have up to two sulphonic acid groups and whose carboxylic acid groups are not adjacent, N-C1-C6-alkyl-N,N-di(C4-C10-alkane carboxylic acid)amine, 1,4-piperazine-di(C1-C10-alkane carboxylic acid), and a process for producing these filaments, their use for the production of fibers and flat products, and fibres and flat products made of these filaments.

    Liquid friction coupling for automatic torque transmission which can be switched on and off
    27.
    发明专利
    Liquid friction coupling for automatic torque transmission which can be switched on and off 未知

    公开(公告)号：DE3917506A1

    公开(公告)日：1989-12-07

    申请号：DE3917506

    申请日：1989-05-30

    Applicant: BASF AG

    Inventor： BUNG RICHARD DR ,  LAUN MARTIN DR ,  LOUIS GERD DR ,  SCHMIDT FRANZ DR

    IPC: B60K17/35 ,  F16D35/00 ,  F16H48/26

    Abstract: Liquid friction coupling for automatic torque transmission which can be switched on and off when exceeding or going below a rotational speed difference between power input and output side, in particular for automatic switching on and switching off of multi-wheel drives of motor vehicles, having a working liquid comprising a dilatent fluid, characterised in that the working liquid is an extremely dilatent copolymer dispersion whose dilatency parameters critical shear rate gamma k and maximum transmittable shear stress tau max are stabilised to continuous loading by emulsion polymerisation of, based on the final polymer, an additional 5 to 30% by weight, preferably 8-18% by weight of (meth)allyl compounds having at least two polymerisable double bonds in the molecule, e.g. diallyl phthalate and/or (meth)allyl (meth)acrylate as comonomers.

    PROCESS FOR PREPARING HOMO AND COPOLYMERS OF ALPHA-OLEFINES WITH A ZIEGLER CATALYST SYSTEM
    28.
    发明专利
    PROCESS FOR PREPARING HOMO AND COPOLYMERS OF ALPHA-OLEFINES WITH A ZIEGLER CATALYST SYSTEM 未知

    公开(公告)号：DE3561514D1

    公开(公告)日：1988-03-03

    申请号：DE3561514

    申请日：1985-02-01

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER DR ,  BACHL ROBERT DR ,  BALL WOLFGANG DR ,  FUNK GUIDO DR ,  LAUN MARTIN DR

    IPC: C08F4/00 ,  C08F4/14 ,  C08F4/16 ,  C08F4/20 ,  C08F4/60 ,  C08F4/622 ,  C08F4/64 ,  C08F4/658 ,  C08F4/68 ,  C08F10/00

    Abstract: alpha -Monoolefins are polymerized using a Ziegler catalyst system comprising (1) a transition metal catalyst component and (2) an organoaluminum catalyst component, in which (1) is a solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxidic substance (I), as the carrier, with (1.1.2) a solution (II) consisting of (IIa) an organic solvent and (IIb) a transition metal composition to form a suspension (III), evaporating down this suspension to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the solid-phase intermediate (IV), obtained from (1.1), with (1.2.2) a solution of an organoaluminum compound (V) to form a suspension, the resulting suspended solid-phase product (VI) being the transition metal catalyst component (1). The characteristic feature is that (1) is a solid-phase product (VI) obtained using a solution (II) consisting of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide and (IIb3) a zirconium tetrahalide.

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