公开(公告)号：US3876572A

公开(公告)日：1975-04-08

申请号：US34808673

申请日：1973-04-04

Applicant: BASF AG

Inventor： SLIWKA WOLFGANG ,  BACHMANN RUDOLF ,  BAUM GUENTHER ,  LUDSTECK DIETER

IPC: C09J7/02 ,  B01F17/52 ,  B01J13/02 ,  B01J13/20 ,  B41M5/165 ,  C11B9/00 ,  C08D9/06

CPC classification number: B01J13/02 ,  B01J13/025 ,  B41M5/165

Abstract: Microcapsule dispersions which have been stabilized with a crosslinked polymer containing carboxyl groups. The physical and chemical properties of the dispersions remain substantially constant while settling and creaming of the dispersed microcapsules are prevented.

公开(公告)号：DE2217696A1

公开(公告)日：1973-10-18

申请号：DE2217696

申请日：1972-04-13

Applicant: BASF AG

Inventor： SLIWKA WOLFGANG ,  BACHMANN RUDOLF ,  BAUM GUENTHER ,  LUDSTTECK DIETER

IPC: C09J7/02 ,  B01J13/02 ,  B01J13/20 ,  B41M5/165 ,  C09K23/52 ,  C11B9/00 ,  B01F17/34

Abstract: 1418151 Colloidal dispersions BADISCHE ANILIN- & SODA-FABRIK AG 12 April 1973 [13 April 1972] 17556/73 Heading B1V Stable aqueous dispersions of microcapsules contain dissolved in the aqueous phase 0.01 to 3% by weight based on the weight of the dispersion of a partly cross-linked polymer containing carboxyl groups which are at least partly neutralised. The partially cross-linked polymer may be an alpha-beta unsaturated homopolymer or copolymer of a mono- or dicarboxylic acid cross-linked by irradiation or by incorporation of 0.01 to 5% by weight of a polyfunctional monomer, and may contain from 0 to 90% by weight of other copolymerizable olefinically unsaturated compounds. The polymer is preferably added in unneutralized form and neutralized in the dispersion. The dispersion may contain from 19 to 50% by weight of microcapsules of particle sizes from 2 to 5 microns. The microcapsules may comprise encapsulated reactive dye in organic liquid.