公开(公告)号：DE50210951D1

公开(公告)日：2007-11-08

申请号：DE50210951

申请日：2002-04-24

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  BUECHNER KARL-HEINZ ,  BRODT GREGOR DR

IPC: C04B7/52 ,  C08G65/332 ,  C04B24/26 ,  C04B24/32 ,  C04B103/52 ,  C08F6/10 ,  C08F8/14 ,  C08F290/06 ,  C08F299/02 ,  C08L71/02

Abstract: Water soluble polymer comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off during the polymerization and recycled to the mixture or is replaced by the addition of fresh water. A water soluble polymer (I) comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification of a mixture of acrylic acid (A), methacrylic acid (B) and an alkylpolyalkylene glycol (C) having a mol.wt. (Mw) of 350-4000 in a molar ratio of (A) to (C) of 0.1-4:1, a molar ratio of (B to (C) of 1-5:1 and molar ratio of the sum of (A) and (B) to (C) of 2-6:1, in the presence of an organic solvent that forms an azeotrope with water to at least 85 wt.% (w.r.t. (C)), followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off from the reaction mixture during the polymerization and the distilled water is recycled to the mixture or is replaced by the addition of fresh water.

公开(公告)号：AT369317T

公开(公告)日：2007-08-15

申请号：AT04739138

申请日：2004-05-06

Applicant: BASF AG

Inventor： BAUM PIA ,  LUTZ ERICH ,  GUZMANN MARCUS ,  BUECHNER KARL-HEINZ ,  BRODT GREGOR

IPC: C02F5/12 ,  C08F8/00 ,  C08F8/34 ,  C08F20/58 ,  C08F220/06 ,  C08F220/58 ,  C23F11/173

公开(公告)号：DE102005030283A1

公开(公告)日：2007-01-11

申请号：DE102005030283

申请日：2005-06-29

Applicant: BASF AG

Inventor： GUZMANN MARCUS ,  RIEGER JENS ,  HERRERA TABOADA LIDCAY ,  BUECHNER KARL-HEINZ

IPC: C02F5/10 ,  C09K8/52

公开(公告)号：DE10352457A1

公开(公告)日：2005-06-09

申请号：DE10352457

申请日：2003-11-07

Applicant: BASF AG

Inventor： GUZMANN MARCUS ,  BUECHNER KARL-HEINZ ,  BAUM PIA ,  BRODT GREGOR

IPC: C02F5/12 ,  C08F8/00 ,  C08F8/32 ,  C08F8/36 ,  C02F5/10 ,  C08F220/06 ,  C23F11/173

公开(公告)号：CA2544771A1

公开(公告)日：2005-05-19

申请号：CA2544771

申请日：2004-11-05

Applicant: BASF AG

Inventor： BRODT GREGOR ,  BAUM PIA ,  GUZMANN MARCUS ,  BUECHNER KARL-HEINZ

IPC: C08F8/32 ,  C02F5/12 ,  C08F8/00 ,  C08F20/06

公开(公告)号：DE19957177A1

公开(公告)日：2001-08-02

申请号：DE19957177

申请日：1999-11-27

Applicant: BASF AG

Inventor： KRONER MATTHIAS ,  BUECHNER KARL-HEINZ ,  PERNER JOHANNES ,  RAUBENHEIMER HANS-JUERGEN ,  FAUL DIETER

IPC: C08F2/06 ,  C08F8/44 ,  C08F220/28 ,  C08F290/06 ,  C08F290/14 ,  C08G65/332 ,  C08L71/02 ,  C08F220/26 ,  C08F8/14

公开(公告)号：DE59307218D1

公开(公告)日：1997-10-02

申请号：DE59307218

申请日：1993-06-22

Applicant: BASF AG

Inventor： KRONER MATTHIAS ,  HARTMANN HEINRICH ,  BOECKH DIETER ,  FUNHOFF ANGELIKA ,  BAUR RICHARD ,  KUD ALEXANDER ,  SCHWENDEMANN VOLKER ,  POTTHOFF-KARL BIRGIT ,  BUECHNER KARL-HEINZ

IPC: C02F5/12 ,  C08F222/00 ,  C08F267/00 ,  C08F283/04 ,  C08G69/10 ,  C08G73/10 ,  C11D3/37 ,  C13B25/00 ,  C13B30/02 ,  C13F1/00

Abstract: PCT No. PCT/EP93/01588 Sec. 371 Date Jan. 3, 1995 Sec. 102(e) Date Jan. 3, 1995 PCT Filed Jun. 22, 1993 PCT Pub. No. WO94/01486 PCT Pub. Date Jan. 20, 1994Modified polyaspartic acids useful as detergent and cleaner additives, as water treatment agents and as scale inhibitors in the evaporation of sugar juice are obtainable by polycondensation of (a) from 1 to 99.9 mol % of aspartic acid with (b) from 99 to 0.1 mol % of fatty acids, polybasic carboxylic acids, anhydrides of polybasic carboxylic acids, polybasic hydroxycarboxylic acids, monobasic polyhydroxycarboxylic acids, alcohols, amines, alkoxylated alcohols and amines, amino sugars, carbohydrates, sugarcarboxylic acids and/or non-proteinogenic aminocarboxylic acids or by polymerizing monoethylenically unsaturated monomers in the presence of polyaspartic acids in the manner of a free-radically initiated graft polymerization.

公开(公告)号：DE19548318A1

公开(公告)日：1997-06-26

申请号：DE19548318

申请日：1995-12-22

Applicant: BASF AG

Inventor： GREIF NORBERT DR ,  POTTHOFF-KARL BIRGIT DR ,  OPPENLAENDER KNUT DR ,  EHLE MICHAEL DR ,  OETTER GUENTER DR ,  SLOTMAN WILHELMUS ,  BUECHNER KARL-HEINZ

IPC: C02F5/12 ,  C08F8/30 ,  C09K3/00 ,  C02F5/08 ,  C08F222/06 ,  C09K7/02

Abstract: Polycarboxylic acid hemiamides used as scale formation inhibitors are prepared by reacting (A) polymers containing anhydride groups and having a weight average molecular weight of 200 - 100000 with (B) sarcosine, aminosulphonic acids or aminophosphonic acids, or their alkali salts.

公开(公告)号：AU6949591A

公开(公告)日：1991-07-25

申请号：AU6949591

申请日：1991-01-22

Applicant: BASF AG

Inventor： GOUSETIS CHARALAMPOS ,  GOECKEL ULRICH ,  BUECHNER KARL-HEINZ ,  DENZINGER WALTER ,  HARTMANN HEINRICH

IPC: C08L33/02 ,  C02F5/10 ,  C02F5/12 ,  C08F26/00 ,  C08F26/02 ,  C08L39/00 ,  C08L39/02

公开(公告)号：NO20076135A

公开(公告)日：2008-01-16

申请号：NO20076135

申请日：2007-11-28

Applicant: BASF AG

Inventor： OFTRING ALFRED ,  GUZMANN MARCUS ,  BUECHNER KARL-HEINZ ,  NEUMANN PETER

IPC: C08G65/00 ,  B01D17/05 ,  C10G33/04

CPC classification number: B01D17/047 ,  C08L53/00 ,  C08L2666/04 ,  C08L2666/14 ,  C08L2666/02 ,  C08L2666/24