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    4.
    发明专利
    未知

    公开(公告)号：AT370168T

    公开(公告)日：2007-09-15

    申请号：AT02747321

    申请日：2002-05-24

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN ,  RATH HANS ,  LANG GABRIELE ,  KREMESKOETTER JENS ,  STOECKELMANN ELMAR

    IPC: C08F10/10 ,  C08F2/00 ,  C08F2/01 ,  C08F2/06 ,  C08F4/00 ,  C08F4/06 ,  C08F4/12 ,  C08F4/16 ,  C08F4/58 ,  C08F10/00 ,  C08F10/08 ,  C08F110/06 ,  C08F110/10

    Abstract: Homo- and copolymers of isobutene are prepared by continuous cationic polymerization of isobutene or mixtures of isobutene with ethylenically unsaturated comonomers in the presence of an initiator system comprising:i) a Lewis acid selected from covalent metal-halogen compounds and covalent semimetal-halogen compounds andii) at least one aprotic organic compound I having at least one functional group FG which forms a carbocation or a cationic complex with the Lewis acid under polymerization conditions in an organic solvent inert with respect to the Lewis acid, by a process in which the polymerization is carried out in a tubular flow-through reactor which has a plurality of curves having an alternating direction of curvature.

    5.
    发明专利
    未知

    公开(公告)号：DE59603014D1

    公开(公告)日：1999-10-14

    申请号：DE59603014

    申请日：1996-06-04

    Applicant: BASF AG

    Inventor： RATH HANS

    IPC: C08F2/00 ,  C08F4/14 ,  C08F110/10

    Abstract: PCT No. PCT/EP96/02414 Sec. 371 Date Nov. 25, 1997 Sec. 102(e) Date Nov. 25, 1997 PCT Filed Jun. 4, 1996 PCT Pub. No. WO96/40808 PCT Pub. Date Dec. 19, 1996Low molecular weight, highly reactive polyisobutene having an average molecular weight Mn of from 500 to 20000 Dalton and containing over 80 mol % of terminal double bonds is prepared by the polymerization of isobutene or an isobutene-containing hydrocarbon stream in the liquid phase and with the aid of a boron trifluoride complex catalyst at from -40 to 0 DEG C. and at from 1 to 20 bar, by a process in which the polymerization reaction is carried out in at least two polymerization stages, the added isobutene being polymerized to a partial conversion of up to 95% in the first polymerization stage and the polymerization of the remaining isobutene being continued in one or more subsequent polymerization stages, without or after prior isolation of the polyisobutene formed in the first polymerization stage.

    6.
    发明专利
    未知

    公开(公告)号：DE59602968D1

    公开(公告)日：1999-10-07

    申请号：DE59602968

    申请日：1996-12-02

    Applicant: BASF AG

    Inventor： HORN PETER ,  HESSE ANTON ,  RATH HANS ,  GREIF NORBERT ,  PARTUSCH GEORG ,  BAUMANN EDWIN ,  LARBIG HARALD ,  HECKMANN WALTER ,  BECKER JOHANNES

    IPC: C08J5/04 ,  C08G18/06 ,  C08G18/28 ,  C08G18/66 ,  C08G101/00 ,  C08J5/24 ,  C08J9/00 ,  C08J9/04 ,  C08K5/3415 ,  C08L75/04

    Abstract: The invention relates to a process for preparing self-releasing, compact or cellular moulded bodies optionally containing reinforcing agents and made of polyisocyanate polyaddition products by reacting a) organic and/or modified organic polyisocyanates with b) at least one compound with at least two reactive hydrogen atoms and a molecular weight of 500 to 9,000 and optionally c) chain extension and/or cross-linking agents in the presence of d) alkyl and/or alkenyl succinic acid monoamides, -monoamides, poly(alkyl succinic acid)- and/or poly(alkenyl succinic acid)-polyamides, -polyimides, -monoamide monoimides, -polyamide imides, -amide polyimides and- polyamide polyimides or mixtures thereof as internal mould release agents, and also in the presence or absence of e) catalysts, f) blowing agents, g) reinforcing agents, h) auxiliary agents, in an open or closed moulding tool, optionally under compression. The invention also relates to the use of alkyl- and/or alkenyl succinic acid amides and/or imides (d) as internal mould release agents for the preparation of moulded bodies made of polyisocyanate polyaddition products.

    8.
    发明专利
    未知

    公开(公告)号：DE59602289D1

    公开(公告)日：1999-07-29

    申请号：DE59602289

    申请日：1996-08-05

    Applicant: BASF AG

    Inventor： SIGWART CHRISTOPH ,  GEHRER EUGEN ,  MUELLER ULRICH ,  RATH HANS ,  FISCHER ROLF

    IPC: C08F4/02 ,  C08F4/06 ,  C08F4/16 ,  C08F4/18 ,  C08F10/10

    Abstract: PCT No. PCT/EP96/03441 Sec. 371 Date Jan. 27, 1998 Sec. 102(e) Date Jan. 27, 1998 PCT Filed Aug. 5, 1996 PCT Pub. No. WO97/06189 PCT Pub. Date Feb. 20, 1997A process for the preparation of halogen-free, reactive polyisobutene having a content of terminal double bonds of more than 50 mol % and an average molecular weight Mn of from 500 to 5000 dalton by the cationic polymerization of isobutene or isobutene-containing hydrocarbon mixtures in the liquid phase, wherein the polymerization is carried out at a temperature of from -30 DEG to +40 DEG C. over a heterogeneous polymerization catalyst containing at least one element acting as promoter and selected from Group IB, Group IIB, Group IIIB, Group IVB, Group VB, Group VIIB, or Group VIIIB of the Periodic Table or from Group IIA, Group IIIA, Group IVA, Group VA, or Group VIA of the Periodic Table or a number of said elements in each case in the form of an oxygen-containing compound and zirconium in the form of an oxygen-containing compound, said polymerization catalyst containing no industrially effective amounts of halogens.

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