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    Alkylene glycol based antifreeze concentrate, useful for coolant systems, contains at least two different dicarboxylic acid salts, a molybdate salt and corrosion inhibitors
    43.
    发明专利
    Alkylene glycol based antifreeze concentrate, useful for coolant systems, contains at least two different dicarboxylic acid salts, a molybdate salt and corrosion inhibitors 未知

    公开(公告)号：DE19952482A1

    公开(公告)日：2001-05-03

    申请号：DE19952482

    申请日：1999-10-29

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  STRAUSS RALF ,  LONCHAMPT JACQUES

    IPC: C09K5/20 ,  C23F11/08

    Abstract: Alkylene glycol based antifreeze concentrate contains 0.05-10 wt.% of a mixture of at least two different 3-16C dicarboxylic acids in the form of their alkali metal, ammonium- or substituted ammonium salts, 0.01-5 wt.% of an alkali metal, ammonium or substituted ammonium molybdate and 0.01-3 wt.% of a mixture of at least two different corrosion inhibitors comprising triazoles and thiazoles. An antifreeze concentrate (I), based on alkylene glycol or its derivatives, contains (A) 0.05-10 wt.% (w.r.t. concentrate (I)) of a mixture of at least two different 3-16C dicarboxylic acids in the form of their alkali metal, ammonium- or substituted ammonium salts, (B) 0.01-5 wt.% (w.r.t. (I)) of an alkali metal, ammonium or substituted ammonium molybdate and (C) 0.01-3 wt.% (w.r.t. (I)) of a mixture of at least two different corrosion inhibitors comprising triazoles and thiazoles. An Independent claim is also included for a cooling agent composition having a reduced freezing point, comprising water and 10-90 wt.% of the concentrate (I).

    46.
    发明专利
    未知

    公开(公告)号：PT909307E

    公开(公告)日：2000-12-29

    申请号：PT97925010

    申请日：1997-05-28

    Applicant: BASF AG

    Inventor： FAUL DIETER ,  WENDEROTH BERND ,  UZELAC LJILJANA ,  DRALLE-VOSS GABRIELLE

    IPC: C08F8/32 ,  C08K5/20 ,  C09K23/52 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/22 ,  C10L1/2383 ,  C10L1/24 ,  C10L10/18

    Abstract: PCT No. PCT/EP97/02781 Sec. 371 Date Nov. 30, 1998 Sec. 102(e) Date Nov. 30, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46640 PCT Pub. Date Dec. 11, 1997A mixture contains (a) from 10 to 90% by weight of at least one imide of a copolymer based on an alpha -olefin and an ethylenically unsaturated dicarboxylic acid and a polyamine and (b) from 10 to 90% by weight of at least one reaction product of a poly(C2-C20-carboxylic acid) having a tertiary amino group with secondary amines and is used as a paraffin dispersant in mineral oil middle distillates.

    48.
    发明专利
    未知

    公开(公告)号：DK0909307T3

    公开(公告)日：2000-11-20

    申请号：DK97925010

    申请日：1997-05-28

    Applicant: BASF AG

    Inventor： WENDEROTH BERND ,  UZELAC LJILJANA ,  FAUL DIETER ,  DRALLE-VOSS GABRIELE

    IPC: C08F8/32 ,  C08K5/20 ,  C09K23/52 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/22 ,  C10L1/2383 ,  C10L1/24 ,  C10L10/18

    Abstract: PCT No. PCT/EP97/02781 Sec. 371 Date Nov. 30, 1998 Sec. 102(e) Date Nov. 30, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46640 PCT Pub. Date Dec. 11, 1997A mixture contains (a) from 10 to 90% by weight of at least one imide of a copolymer based on an alpha -olefin and an ethylenically unsaturated dicarboxylic acid and a polyamine and (b) from 10 to 90% by weight of at least one reaction product of a poly(C2-C20-carboxylic acid) having a tertiary amino group with secondary amines and is used as a paraffin dispersant in mineral oil middle distillates.

    49.
    发明专利
    未知

    公开(公告)号：NO20002778L

    公开(公告)日：2000-07-31

    申请号：NO20002778

    申请日：2000-05-30

    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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