公开(公告)号：DE19609956A1

公开(公告)日：1996-09-26

申请号：DE19609956

申请日：1996-03-14

Applicant: BASF AG

Inventor： LEPPERT NORBERT DIPL ING ,  WEBER DIETER DIPL ING ,  HERRMANN MANFRED DR ,  REICHELT HELMUT DR ,  HAUPTREIF MANFRED DR ,  RAATZ PETER DR ,  DELAVIER PAUL DR

IPC: C09B57/00 ,  C09B67/22 ,  C11D3/42 ,  D06L3/12 ,  D06L4/607 ,  D06L4/614 ,  D06L4/65 ,  C07C255/51

Abstract: An optical brightener mixt., contg. 75-100 wt.% dicyano-substd. bis-styryl (DCBS) isomers of formulae (I)-(V) contains, per 100 pts.wt. (I)-(V), 25-50 pts. wt. (I); 30-60 pts.wt. (II); and 0.5-10 pts. wt. (III), as well as 1-30 pts. wt. (IV) and/or (V). Pref. the compsn. contains 85-100 wt.% (I)-(V), with an aq. compsn. contg. 3-25 wt.% (I)-(V) and 5-60 wt.% auxiliaries. The pref. (I)-(V) compsn. comprises 30-45 wt.% (I), 40-50 wt.% (II) and 0.5-5 wt.% (III), as well as 1-15 wt.% (IV) and/or (V).

公开(公告)号：DE3210004A1

公开(公告)日：1983-09-22

申请号：DE3210004

申请日：1982-03-19

Applicant: BASF AG

Inventor： STREIT WERNER DIPL CHEM DR ,  LORENZ KLAUS DIPL CHEM DR ,  LEPPERT NORBERT DIPL ING

IPC: D06M11/00 ,  C02F5/10 ,  D06L1/12 ,  D06M11/38 ,  D06M11/49 ,  D06M13/148 ,  D06M13/188 ,  D06M13/328 ,  D06M23/00 ,  D06M101/00 ,  D06M101/02 ,  D06M101/06 ,  D06M1/06

Abstract: An agent, based on reducing agents and complexing agents, for dissolving insoluble iron(III) compounds in aqueous textile treatment baths which are at a pH of 10 or more, which agent has the following composition: (a) from 4 to 65% by weight of one or more water-soluble hydroxycarbonyl compound or of an N- or O-acetal thereof, as the reducing agent, (b) from 10 to 80% by weight of one or more complexing agent which complexes Fe++ ions at a pH of 10 or more and (c) water in an amount equal to 100% minus the amounts of (a) and (b).