公开(公告)号：DE4308426A1

公开(公告)日：1994-09-22

申请号：DE4308426

申请日：1993-03-17

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  DENZINGER WALTER ,  BAUR RICHARD DR ,  ALEXANDER KUD DR ,  POTTHOFF-KARL BIRGIT DR ,  SCHWENDEMANN VOLKER DR

IPC: C08F8/14 ,  C08F8/30 ,  C08F8/44 ,  C08F8/48 ,  C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37 ,  C08F8/32 ,  C08G81/02 ,  B01F17/52 ,  C02F5/12

Abstract: PCT No. PCT/EP94/00660 Sec. 371 Date Sep. 13, 1995 Sec. 102(e) Date Sep. 13, 1995 PCT Filed Mar. 5, 1994 PCT Pub. No. WO94/21695 PCT Pub. Date Sep. 29, 1994Polycocondensates based on aspartic acid which are obtainable by condensing aspartic acid in the presence of polymers containing carboxyl groups, which contain at least 10 mol % of a monoethylenically unsaturated carboxylic acid in copolymerized form and have a molecular weight of at least 300, in the weight ratio from 1,000:1 to 2:1, processes for preparing the polycocondensates and use of the polycocondensates in the form of the free acid groups or in a form neutralized with ammonia, amines, alkali metal or alkaline earth metal bases as an additive to detergents and cleaners, as scale inhibitors or as dispersants for finely divided solids are described.