公开(公告)号：EP0141470A3

公开(公告)日：1988-09-14

申请号：EP84201578

申请日：1984-11-02

申请人： UNILEVER NV ,  UNILEVER PLC

发明人： Finch, Timothy David ,  Wilde, Raymond John

IPC分类号： C11D03/39

CPC分类号： C11D3/3935 ,  C11D3/3932 ,  C11D17/0039

摘要： A stable manganese adjunct for use as a bleach catalyst is obtained by having a manganese (II) cation bound to a "ligand" forming either a true complex compound, a water-insoluble salt compound, or an ion-binding compound by adsorption, which compound is then protectively enclosed in a matrix of water-soluble or water-dispersible material. The adjunct is particularly suitable for incorporation in fabric-washing powder compositions containing a peroxide bleach without causing instability to the composition and brown discolouration due to Mn0 2 formation.

公开(公告)号：EP0256443A3

公开(公告)日：1988-12-14

申请号：EP87111425

申请日：1987-08-07

申请人： UNILEVER NV ,  UNILEVER PLC

发明人： Finch, Timothy David

IPC分类号： C11D03/39 ,  C11D03/37

CPC分类号： C11D3/3761 ,  C11D3/3945

摘要： A stable, dry, granular peroxyacid bleach composition having particle size of from 500-2000 µm is disclosed, said composition comprising from 20 to 65% by weight of a solid organic peroxyacid compound, 79.5 to 30% by weight of at least one inert inorganic salt, and from 0.5 to about 6.5% by weight of a non-­oxidisable, acidic, polymeric builder.
Low to medium temperature bleach detergent compositions comprising a surface-active agent, a detergency builder and said dry granular peroxyacid bleach composition are also disclosed.

公开(公告)号：EP0141472A3

公开(公告)日：1988-09-14

申请号：EP84201582

申请日：1984-11-02

申请人： UNILEVER NV ,  UNILEVER PLC

发明人： Finch, Timothy David ,  Wilde, Raymond John

IPC分类号： C11D03/39

CPC分类号： C11D3/3935 ,  C11D3/3932

摘要： A stable heavy metal adjunct, particularly manganese adjunct, for use as a peroxygen bleach catalyst is disclosed which comprises a matrix of a heavy meal salt provided with a surface powder coating of desiccant microsized powdered material having a mean particle size of less than 25 µm. A process for preparing said adjunct and bleaching and detergent compositions containing said adjunct are also disclosed. Preferred heavy metal is manganese and preferred surface powder coating is with microsized silicon dioxide (silica).