公开(公告)号：DE59400146D1

公开(公告)日：1996-04-11

申请号：DE59400146

申请日：1994-08-25

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  MUELLER HANS-JOACHIM DR ,  KLIMESCH ROGER DR ,  WISTUBA ECKEHARDT DR ,  PLAUMANN HEINZ DR ,  KOLK ERICH DR ,  ISBARN GUNTHER DR ,  FAUTH KARL-HEINZ ,  KROBB JOACHIM

IPC: C08F4/04 ,  C08F4/14 ,  C08F4/32 ,  C08F8/46 ,  C08F255/08 ,  C09J151/06

公开(公告)号：DE59204583D1

公开(公告)日：1996-01-18

申请号：DE59204583

申请日：1992-09-10

Applicant: BASF AG

Inventor： BESECKE SIEGMUND DR ,  LAUKE HARALD DR ,  DECKERS ANDREAS DR

IPC: C08F2/38 ,  C08F220/12 ,  C08F220/14 ,  C08L33/12 ,  C08L51/00

公开(公告)号：DE59203581D1

公开(公告)日：1995-10-12

申请号：DE59203581

申请日：1992-12-05

Applicant: BASF AG

Inventor： BESECKE SIEGMUND DR ,  DECKERS ANDREAS DR ,  LOTH WOLFGANG DR ,  LAUKE HARALD DR

IPC: C08F8/32 ,  C08F8/48

Abstract: A polymer essentially containing units of the formula I in which R and R are hydrogen or methyl, and R is C4-C18-alkyl, C5-C8-cycloalkyl, C6-C10-aryl or C6-C10-aryl-C1-C4-alkyl, where these radicals, with the exception of the C4-C18-alkyl radicals, may be up to trisubstituted by radicals selected from the group consisting of C1-C4-alkyl, C1-C4-alkoxy and halogen, and containing less than or equal to 0.40 equivalent of carboxyl and anhydride groups per kilogram of polymer and having an inherent colour (measured as yellowness index) of less than or equal to 2.0, obtainable by reacting a polymer based on C1-C20-alkyl esters of (meth)acrylic acid with a primary amine of the formula II R NH2 II by removing the alcohol formed during the reaction from the reaction mixture.

公开(公告)号：DE4329905A1

公开(公告)日：1995-03-09

申请号：DE4329905

申请日：1993-09-04

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  MUELLER HANS-JOACHIM DR ,  KLIMESCH ROGER DR ,  WISTUBA ECKEHARDT DR ,  PLAUMANN HEINZ DR ,  KOLK ERICH DR ,  ISBARN GUNTHER DR ,  FAUTH KARL-HEINZ ,  KROBB JOACHIM

IPC: C08F4/04 ,  C08F4/14 ,  C08F4/32 ,  C08F8/46 ,  C08F255/08 ,  C09J151/06 ,  C08J3/24 ,  C09K3/10

公开(公告)号：DE4418712A1

公开(公告)日：1994-12-08

申请号：DE4418712

申请日：1994-05-28

Applicant: BASF AG

Inventor： DECKERS ANDREAS DR ,  GUENTHERBERG NORBERT DR

IPC: C08F2/00 ,  C08F2/18 ,  C08F12/08 ,  C08F12/12 ,  C08F20/12

Abstract: A process for reducing the amount of wall deposits in electroconductive reaction containers in the polymerisation of vinylically unsaturated monomers in suspension by applying, during the polymerisation process, an electric voltage between an anode located in the reaction mixture of the electroconductive reaction container, and the electroconductive reaction container and/or stirrer as cathode, and a process for the preparation of polymers based on vinylically unsaturated monomers in suspension, an apparatus for the polymerisation of the abovementioned monomers, and the use of this apparatus for reducing the amount of wall deposits in the polymerisation of the abovementioned monomers in this apparatus.

公开(公告)号：DE4233386A1

公开(公告)日：1994-04-07

申请号：DE4233386

申请日：1992-10-05

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT DR ,  DECKERS ANDREAS DR ,  TIEFENSEE KRISTIN DR

IPC: C08L25/12 ,  C08L33/00 ,  C08L33/04 ,  C08L33/12 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L73/00 ,  C08L83/04

公开(公告)号：DE4232121A1

公开(公告)日：1994-03-31

申请号：DE4232121

申请日：1992-09-25

Applicant: BASF AG

Inventor： KIELHORN-BAYER SABINE DR ,  DECKERS ANDREAS DR ,  SAENGER DIETRICH DR

IPC: C08K3/34 ,  C08K5/10 ,  C08K5/20 ,  C08K7/00 ,  C08K13/04 ,  C08L21/00 ,  C08L51/00 ,  C08L57/00 ,  C08L59/00 ,  C08L59/02 ,  C08L61/28 ,  D01F6/94

公开(公告)号：DE4229913A1

公开(公告)日：1994-03-10

申请号：DE4229913

申请日：1992-09-08

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT DR ,  DECKERS ANDREAS DR ,  NIESSNER NORBERT DR

IPC: C08L25/12 ,  C08L25/16 ,  C08L33/24 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  C08L51/06

公开(公告)号：DE4205882A1

公开(公告)日：1993-09-02

申请号：DE4205882

申请日：1992-02-26

Applicant: BASF AG

Inventor： BESECKE SIEGMUND DR ,  DECKERS ANDREAS DR ,  FISCHER HERMANN DR ,  NEUFELD ECKHARD

IPC: C08F8/30 ,  C08F8/32 ,  C08F8/48 ,  C08J3/14

Abstract: The production of particulate polymers obtainable by reacting a polymer based on C1-C22-alkyl esters of acrylic and/or methacrylic acid with ammonia and/or at least one primary amine RNH2, by …… A) allowing a solution of the polymer to exit a nozzle in a multiplicity of liquid jets, … B) causing the liquid jets to break up into drops having a narrow particle size distribution by setting the nozzle into longitudinal or transverse vibration or by pulsing the liquid in the nozzle or by providing a distance between exit from the nozzle and entry into a precipitation bath, … C) precipitating the resultant drops by introduction into a precipitation bath containing a liquid in which the polymer is insoluble, … D) removing solvent residues and other impurities present in the polymer particles, … and the use of the resultant particulate poly(meth)acrylimides for the production of mouldings, and moulding obtainable from these polymers.

公开(公告)号：DE4142913A1

公开(公告)日：1993-07-01

申请号：DE4142913

申请日：1991-12-24

Applicant: BASF AG

Inventor： BESECKE SIEGMUND DR ,  LAUKE HARALD DR ,  DECKERS ANDREAS DR

IPC: C07C27/02 ,  C07C51/09 ,  C07C59/60

Abstract: Preparation of 2,2'-[oxybis(methylene)]bis-2-propanoic acid CH2=C(COOH)CH2-O-CH2C(COOH)=CH2 having a purity of at least 99%, by hydrolysis of the corresponding esters in aqueous medium and subsequent acidification of the resulting salt, by carrying out the hydrolysis in an aqueous, basic solution.