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    33.
    发明专利
    未知

    公开(公告)号：NO20032794D0

    公开(公告)日：2003-06-19

    申请号：NO20032794

    申请日：2003-06-19

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN ,  FIDORRA UWE ,  BERGEMANN MARCO

    IPC: C09K3/00 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04 ,  H01M8/10 ,  C09K

    Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 mus/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R 1 to R 4 are the same or different and represent C 1 -C 20 alkyl substituents, C 2 -C 20 alkenyl substituents, C 1 -C 20 hydroxyalkyl substituents, optionally substituted C 6 -C 12 aryl substituents and/or glycol ether substituents of formula (CH 2 -CH 2 -O) n -R 5 wherein R 5 represents hydrogen or C 1 -C 5 alkyl and n represents a number between 1 and 5

    34.
    发明专利
    未知

    公开(公告)号：NO20030352D0

    公开(公告)日：2003-01-23

    申请号：NO20030352

    申请日：2003-01-23

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  SCHAEKER KARLHEINZ

    IPC: C09K5/08 ,  C09K3/00 ,  C09K5/20 ,  C23F11/10 ,  C23F11/14 ,  C23F11/16

    Abstract: The invention relates to antifreeze concentrates which are based on alkylene glycols or derivatives thereof or on glycerin, containing 0.05 to 10 wt. % of one or more cathoxylic acid amides and/or sulfonic acid amides in relation to the total quantity of concentrate.

    37.
    发明专利
    未知

    公开(公告)号：AT221900T

    公开(公告)日：2002-08-15

    申请号：AT98928229

    申请日：1998-05-07

    Applicant: BASF AG

    Inventor： FAUL DIETER ,  WENDEROTH BERND ,  DRALLE-VOSS GABRIELE ,  SCHORNICK GUNNAR

    IPC: C08F222/00 ,  C08F224/00 ,  C10L1/14 ,  C10L1/18 ,  C10L1/196 ,  C10L1/197 ,  C10L1/22 ,  C10L1/236 ,  C10L1/24

    Abstract: A copolymer of the monomers of the following components A to C and, if required, D, the total amount by weight of which is 100 mol %:a: from 20 to 80 mol % of at least one ethylenically unsaturated dicarboxylic acid or of an anhydride, ester and/or amide thereof as component A,b: from 1 to 79 mol % of at least one diketene of the general formula (I) where R1 and R2 independently are each hydrogen or C1-C30-alkyl, as component B,c: from 1 to 79 mol % of at least one vinyl ester, alkyl (meth)acrylate, (meth)acrylonitrile or mixtures thereof as component C andd: from 0 to less than 0.5 mol % or, if at least 20 mol % of component C are present, from 0 to 20 mol % of at least one further olefinically unsaturated monomer as component D,is used as a flow improver in mineral oil middle distillates.

    39.
    发明专利
    未知

    公开(公告)号：AT215570T

    公开(公告)日：2002-04-15

    申请号：AT98965218

    申请日：1998-12-01

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS ,  WENDEROTH BERND ,  WEDEL PETER ,  WEBER WILHELM

    IPC: C10L1/18 ,  C08F2/00 ,  C08F210/02 ,  C08F218/08 ,  C10L1/197

    Abstract: In a process for preparing ethylene-vinyl acetate copolymers in which a mixture of ethylene and vinyl acetate is polymerized continuously in the presence of free-radical polymerization initiators and, if desired, molecular weight regulators in a cooled tube reactor at a pressure in the range from 1000 to 3500 bar, and the poly-merization initiator is added at the beginning and at two or more points along the tube reactor, and temperature changes in the reaction mixture along the tube reactor, between the first temperature maximum and the last addition of the polymerization initiator, are within a range of not more than 20° C.

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