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    34.
    发明专利
    未知

    公开(公告)号：AT444314T

    公开(公告)日：2009-10-15

    申请号：AT06762534

    申请日：2006-07-11

    Applicant: BASF SE

    Inventor： BODE ANDREAS ,  RACHWALSKY UWE ,  SAUER FRIEDRICH ,  SCHAUSS ECKARD ,  VOLLAND MARCO-CHRISTIAN ,  WETTLING THOMAS

    IPC: C08F10/10 ,  C08F4/14

    Abstract: The present invention relates to a process for preparing polyisobutenes by polymerizing isobutene in the presence of a Lewis acid catalyst in liquid organic phase, terminating the reaction by admixing the organic phase with an aqueous terminator in a dynamic mixer which has a rotationally symmetric mixing chamber formed from one circumferential wall and two end walls, and a mixing rotor driven such that it rotates therein, the organic phase being introduced through a first inlet orifice provided in the circumferential wall and the aqueous terminator via a second inlet orifice provided in the circumferential wall, and removing a finely dispersed mixture of the organic phase and of the terminator through an outlet orifice provided in the circumferential wall and feeding it to a phase separation. The process serves to prepare high-reactivity polyisobutenes and/or polyisobutenes with narrow molecular weight distribution.

    35.
    发明专利
    未知

    公开(公告)号：AT391737T

    公开(公告)日：2008-04-15

    申请号：AT02782447

    申请日：2002-07-02

    Applicant: BASF SE

    Inventor： AUER HEINZ ,  BORCHERS DIRK ,  WETTLING THOMAS

    IPC: C08F10/10 ,  C08L23/20 ,  C08F4/14 ,  C08F110/10

    Abstract: A polyisobutene composition having a global maximum of the differential molecular weight distribution curve at a molecular weight M max of from 3 500 to 8 000 is described, which comprises at least one local maximum at a molecular weight of from 112 to 560. The isobutene oligomers present act as flow improvers and boiling assistants. They are added to higher molecular weight isobutene polymers, preferably before or in the course of a distillation, for removing unconverted isobutene and/or an inert diluent.

    METHOD FOR THE CONTINUOUS PRODUCTION OF POLYISOBUTYLENE
    38.
    发明专利
    METHOD FOR THE CONTINUOUS PRODUCTION OF POLYISOBUTYLENE 未知

    公开(公告)号：SG10201605034SA

    公开(公告)日：2016-08-30

    申请号：SG10201605034S

    申请日：2013-01-04

    Applicant: BASF SE

    Inventor： WETTLING THOMAS ,  HIRSCH STEFAN ,  BRYM MARKUS ,  WEIS MARKUS

    Abstract: Continuous production of polyisobutylene having a content of terminal double bonds of greater than 50% by polymerization of isobutene in the presence of a polymerization catalyst usual therefor, by combining a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream together with a stream of pure isobutene, and feeding the combined stream into the reaction zone in such a manner that the steady state concentration of isobutene in the combined stream at the point where the combined stream is fed into the reaction zone has a value of on average at least 40% by weight, and the invention also relates to a polymerization system therefor.

    BORON TRIFLUORIDE CATALYST COMPLEX AND METHOD FOR PRODUCING HIGHLY REACTIVE ISOBUTENE HOMOPOLYMERS
    39.
    发明专利
    BORON TRIFLUORIDE CATALYST COMPLEX AND METHOD FOR PRODUCING HIGHLY REACTIVE ISOBUTENE HOMOPOLYMERS 未知

    公开(公告)号：SG11201404468RA

    公开(公告)日：2014-10-30

    申请号：SG11201404468R

    申请日：2013-02-13

    Applicant: BASF SE

    Inventor： WETTLING THOMAS ,  HIRSCH STEFAN ,  BRYM MARKUS ,  WEIS MARKUS

    IPC: C08F10/10

    Abstract: The invention relates to a catalyst complex comprising boron trifluoride and a co-catalyst mixture of 10 to 90 wt% of a monovalent primary C1 to C20 alcohol and 90 to 10 wt% of a monovalent secondary C3 to C20 alcohol, wherein the molar ratio of boron trifluoride to the sum of all alcohols is 2:1 to 1:10. Said catalyst complex is used in the production of highly reactive isobutene homopolymers having a number-average molecular weight of 300 to 50,000, wherein a C4 hydrocarbon mixture containing at least 20 wt% of isobutene and in total at least 10 wt% of other C4 olefins is used as a feed material.

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