公开(公告)号：DE10217736A1

公开(公告)日：2003-10-30

申请号：DE10217736

申请日：2002-04-20

Applicant: BASF AG

Inventor： KLUMPE MARKUS ,  DROEGENMUELLER ANDREA ,  FUNHOFF DIRK ,  WENDEL UDO

IPC: C07C229/64 ,  C08G73/06 ,  A61K7/00 ,  A61K31/00 ,  C07C227/04 ,  C07C227/38 ,  C08G73/22

Abstract: A process for the production of an optionally substituted amino-hydroxy-benzoic acid hydrate salt comprises contacting a solution containing an amino-hydroxy-benzoic acid and/or its anions in a polar solvent having a pH of 4 with a protonic acid H2A and an activated carbon at 0-200 degreesC, separating the solid from the mixture from step and isolating the hydrate salt from the solution. A process for the production of an optionally substituted amino-hydroxy-benzoic acid hydrate salt (I) of formula (1) comprises: (1) contacting a solution containing an amino-hydroxy-benzoic acid corresponding to the salt (I) and/or its anions in a polar solvent having a pH of 4 with a protonic acid H2A and an activated carbon at 0-200 degreesC; (2) separating the solid from the mixture; and (3) isolating the hydrate salt (I) from the solution. X1 = OH; X2 = NH3+; R1-R3 = H, 1-30C optionally unsaturated acyclic, cyclic, aliphatic, aromatic or araliphatic group whereby R2 and R3 are optionally bonded to each other; Aa- = anion of a protonic acid; a = whole positive number Independent claims are also included for: (1) the resulting amino-hydroxy-benzoic acid hydrate salt (I); (2) amino-hydroxy-benzoic acids of formula (2) prepared by treatment of the hydrate salt (I) with a base. X1 = OH; X3 = NH2

公开(公告)号：DE19847824A1

公开(公告)日：2000-04-20

申请号：DE19847824

申请日：1998-10-16

Applicant: BASF AG

Inventor： OFENLOCH NICOLE ,  WENDEL UDO ,  KISTENMACHER AXEL ,  BONN JOHANN ,  SCHUHMACHER RUDOLF

IPC: C09K23/52 ,  D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/33 ,  D06M15/347 ,  D06M15/356 ,  D21H17/37 ,  D21H17/43 ,  D21H21/16 ,  D21H17/34 ,  B01F17/52 ,  D06M13/203

Abstract: Aqueous size dispersions contains a dispersed reactive sizing agent and an anionic dispersant, in which the dispersant is an amphiphilic copolymer (I) with a mol. wt. (Mw) of 800-250,000 consisting of (a) 20-65 wt% hydrophobic monomers and (b) 35-80 wt% hydrophilic monomers with anionic groups.

公开(公告)号：AU6333599A

公开(公告)日：2000-05-08

申请号：AU6333599

申请日：1999-10-05

Applicant: BASF AG

Inventor： OFENLOCH NICOLE ,  WENDEL UDO ,  KISTENMACHER AXEL ,  BONN JOHANN ,  SCHUHMACHER RUDOLF

IPC: D06M15/227 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/33 ,  D06M15/347 ,  D06M15/356 ,  D21H17/16 ,  D21H17/17 ,  D21H17/37 ,  D21H17/43 ,  D21H17/47 ,  D21H21/16 ,  D21H17/72 ,  C08J3/03 ,  D21H17/42 ,  D21H17/62