公开(公告)号：EP0094801A3

公开(公告)日：1984-08-01

申请号：EP83302707

申请日：1983-05-12

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Barker, Martyn Charles ,  Rowlands, Edward Gordon

IPC分类号： C09C03/00 ,  C09C01/62 ,  C09D11/02 ,  C09D17/00 ,  C03C01/04 ,  C04B35/66 ,  C08K09/00

CPC分类号： B82Y30/00 ,  C01P2002/84 ,  C01P2004/50 ,  C01P2004/52 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/22 ,  C01P2006/34 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90 ,  C03C1/04 ,  C09C1/027 ,  C09D7/62 ,  C09D7/67 ,  C09D11/03

摘要： loccular compositions comprising ultrafine inorganic particles having maximum particle dimensions of from 0.5 to 3000 (preferably 2 to 1500) nm combined with a size-stabiliser which is a lyophobic substance with lyophilic activity on its surface and also comprising a polyelectrolyte flocculating agent attached to the combination. The size-stabiliser protects the ultrafine particles against agglomeration during formation of the flocculates and the mixing of flocculates into various materials such as plastics, inks, paint or refractory materials. Also a method for making the flocculates from colloidal dispersions of particles, size-stabilisers and flocculating agents. The flocculates are particularly useful with particles of metals of the coinage and transition groups for making transparent colouring agents. Also materials containing the ultrafine particles.