公开(公告)号：DE4221875A1

公开(公告)日：1994-01-05

申请号：DE4221875

申请日：1992-07-03

Applicant: BASF AG

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

IPC: C02F5/12 ,  C08F222/00 ,  C08F267/00 ,  C08F283/04 ,  C08G69/10 ,  C08G73/10 ,  C11D3/37 ,  C13B25/00 ,  C13B30/02 ,  C08G69/36 ,  C08G69/44 ,  C02F5/10 ,  C13F1/00

Abstract: Modified polyaspartic acids are obtained by polycondensing (a) 1 to 99.9 mol % aspartic acid with (b) 99 to 0.1 mol % 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, sugar carboxylic acids and/or non-proteinogenic aminocarboxylic acids, or by polymerising monoethylenically unsaturated monomers in the presence of polyaspartic acids, in the manner of radically initiated graft copolymerisation. Also disclosed is a process for preparing these modified polyaspartic acids, as well as the use of these modified polyaspartic acids as additives to washing and cleaning agents, as water conditioning agents and as deposit inhibitors during the condensation of sugar juice.

公开(公告)号：DE4217847A1

公开(公告)日：1993-12-02

申请号：DE4217847

申请日：1992-05-29

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  HARTMANN HEINRICH DR ,  POTTHOFF-KARL BIRGIT DR ,  BUECHNER KARL-HEINZ

IPC: C02F5/12 ,  C13B25/00 ,  C13F1/00 ,  C02F5/10

Abstract: The invention concerns the use of condensation products of aspartic acid, as well as the alkali-metal salts and ammonium salts of such condensation products, as deposit-prevention agents in the concentration of sugar juices.