公开(公告)号：DE59605691D1

公开(公告)日：2000-09-14

申请号：DE59605691

申请日：1996-02-16

Applicant: BASF AG

Inventor： BOECKH DR ,  JAEGER DR ,  KUD DR ,  TRIESELT DR ,  BUEHLER DR

IPC: C08J3/00 ,  C08J3/12 ,  C08L101/00 ,  C11D3/37

Abstract: A finely divided mixt. of an amphiphilic polymer and a polycarboxylate is prepd. by: (i) mixing: (a) an aq. dispersion or colloidal aq. soln. of an amphiphilic polymer; and (b) an aq. soln. of a polycarboxylate, in ratio by wt. of (a):(b) of 1:1-20, as solids; or by: (ii) dispersing an amphiphilic polymer in an aq. soln. of a polycarboxylate and spray-drying the dispersion to a finely divided polymer mixt.. Also claimed is a polymer mixt. with grain size 20 mu m - 3 mm.

公开(公告)号：DE59709000D1

公开(公告)日：2003-01-30

申请号：DE59709000

申请日：1997-10-30

Applicant: BASF AG

Inventor： BOECKH DR ,  POTTHOFF-KARL DR ,  BERTLEFF DR ,  NEUMANN DR ,  JAHNS DR ,  BIASTOCH DR ,  WEHLAGE DR

IPC: B01J13/14 ,  B01J13/18 ,  C11D3/37 ,  C11D3/39 ,  C11D17/00

Abstract: Microcapsules containing a bleaching assistant obtained by polymerisation of a monomer mixture comprising (total monomer mixture = 100 wt. %) (a) 5-100 wt. % of at least one ethylenically unsaturated carboxylic acid anhydride, (b) 0-95 wt. % of at least one monoethylenically unsaturated monomer different to monomer group (a), (c) 0-80 wt. % crosslinking monomers having at least two non-conjugated monoethylenically unsaturated groups in the molecule and (d) 0-20 wt. % water soluble monoethylenically unsaturated monomers, in the oil phase of a stable oil-in-water emulsion in the presence of radical forming polymerisation initiators, and optionally continuously or periodically increasing the temperature of the polymerisation reaction mixture during the polymerisation are new. The oil phase of the emulsion contains or consists of the bleaching assistant. Also claimed are washing and cleaning agents containing the encapsulated bleaching agent assistants for the cleaning of textile s.