公开(公告)号：DE3700535A1

公开(公告)日：1988-07-21

申请号：DE3700535

申请日：1987-01-10

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH ,  GOECKEL ULRICH ,  RICHTER FELIX ,  RAUBENHEIMER HANS-JUERGEN ,  WINKLER EKHARD

IPC: C23F14/02 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C02F5/12 ,  C02F5/14 ,  C08F2/04 ,  C08F2/06 ,  C08F4/32 ,  C08F20/02 ,  C08F222/06 ,  C08F222/02 ,  C08F8/12 ,  C08F267/02

Abstract: A process wherein… (a) from 99 to 80 % by weight of maleic anhydride and… (b) from 1 to 20 % by weight of a monoethylenically unsaturated monomer which can be copolymerised with maleic anhydride, and, if desired,… (c) up to 10 % by weight of a crosslinking agent… are copolymerised in an aromatic hydrocarbon at a temperature of from 60 to 200 DEG C in the presence of a peroxy ester derived from a saturated or monoethylenically unsaturated carboxylic acid, and the anhydride groups of the copolymer are subsequently hydrolysed. … The copolymers prepared in this way are used as water-treatment agents.

公开(公告)号：ES2022503B3

公开(公告)日：1991-12-01

申请号：ES88104891

申请日：1988-03-26

Applicant: BASF AG

Inventor： BAUR RICHARD ,  RICHTER FELIX ,  BIRNBACH STEFAN ,  FIKENTSCHER ROLF ,  OFTRING ALFRED ,  WINKLER EKHARD ,  BOCHNITSCHEK WERNER

IPC: G01N31/00 ,  C07C67/00 ,  C07C227/16 ,  C07C227/18 ,  C07C229/22 ,  C07C229/24 ,  C07C229/76 ,  C07C231/00 ,  C07C231/12 ,  C07C237/06 ,  C07C253/00 ,  C07C253/30 ,  C07C255/18 ,  C07C255/24 ,  C07C255/26 ,  C09K3/00 ,  C11D3/33 ,  C11D3/39

公开(公告)号：AU1446488A

公开(公告)日：1988-10-13

申请号：AU1446488

申请日：1988-04-11

Applicant: BASF AG

Inventor： BAUR RICHARD ,  RICHTER FELIX ,  BIRNBACH STEFAN ,  FIKENTSCHER ROLF ,  OFTRING ALFRED ,  WINKLER EKHARD ,  BOCHNITSCHEK WERNER

IPC: G01N31/00 ,  C07C67/00 ,  C07C227/16 ,  C07C227/18 ,  C07C229/22 ,  C07C229/24 ,  C07C229/76 ,  C07C231/00 ,  C07C231/12 ,  C07C237/06 ,  C07C253/00 ,  C07C253/30 ,  C07C255/18 ,  C07C255/24 ,  C07C255/26 ,  C09K3/00 ,  C11D3/33 ,  C11D3/39 ,  C07C101/30 ,  C07C121/43 ,  C07C103/183 ,  C11D3/30 ,  A61K37/02 ,  C07G17/00 ,  C07H21/04 ,  C07K13/00 ,  C12N5/00 ,  C12N15/00 ,  C12P21/02 ,  C05D9/02 ,  C23F11/14 ,  C23G1/18 ,  C25D3/00 ,  G03C5/38

Abstract: 2-Hydroxy-3-aminopropionic-N,N-diacetic acid and derivatives thereof are used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.