公开(公告)号：DE3260434D1

公开(公告)日：1984-08-30

申请号：DE3260434

申请日：1982-03-19

Applicant: BASF AG

Inventor： DEGEN HANS-JUERGEN DR ,  GUENDER WOLF DR ,  FREY GUENTER DR ,  STREIT WERNER DR ,  FIKENTSCHER ROLF DR ,  WULZ KLAUS DR

IPC: D21H19/10 ,  D21H17/07 ,  D21H17/55 ,  D21H21/28 ,  D21H3/80

Abstract: A process for coloring paper with an acid dye and/or direct dye in an aqueous medium in the presence of a water-soluble reaction product of an alkylating agent, possessing an aromatic substituent, with a cationic polyelectrolyte. The process gives papers with high color strength and substantially avoids cylinder twosidedness of the coloration.

公开(公告)号：DE3306252A1

公开(公告)日：1984-08-23

申请号：DE3306252

申请日：1983-02-23

Applicant: BASF AG

Inventor： MELZER JAROSLAV ,  FREY GUENTER DR

IPC: C08G73/02 ,  C08G73/04 ,  C08L71/02

Abstract: The invention relates to polymeric beta -ketoamides which are prepared by reacting a) polyethyleneimines with diketenes of long-chain fatty acids, 0.1 to 1 mol of the diketene being used for 1 mol of the primary and secondary amino groups in the polyethyleneimine. These polymeric beta -ketoamides are, like beta -ketoamides which are obtained by reacting piperazine, 1-(2-aminoethyl)-piperazine and 4,4'-diaminodiphenylmethane with long-chain diketenes, used as stabilisers for polyalkylene glycol esters of saturated C10-C22-fatty acids, in order to prevent unesterified fatty acids from crystallising out.

公开(公告)号：CH633193A5

公开(公告)日：1982-11-30

申请号：CH246778

申请日：1978-03-07

Applicant: BASF AG

Inventor： PERNER JOHANNES DR ,  FREY GUENTER DR ,  HELFERT HERBERT DR ,  FIKENTSCHER ROLF DR

IPC: B01D19/04 ,  C11D3/00 ,  C11D3/28