Aqueous suspensions of calcium-containing fillers

Details Aqueous suspensions of calcium-containing fillers Aqueous suspensions of calcium-containing fillers

C - Chemistry, Metallurgy

09

C

400/5022, 9/51,

C09C 1/02 (2006.01) B01F 17/00 (2006.01) C01F 11/18 (2006.01) D21H 17/44 (2006.01) D21H 17/69 (2006.01) D21H 17/42 (2006.01) D21H 17/54 (2006.01)

Patent

CA 1318982

ABSTRACT AQUEOUS SUSPENSIONS OF CALCIUM-CONTAINING FILLERS There is disclosed an aqueous suspension of a particulate calcium-containing filler in which the particles of filler are surface treated with a dispersing agent comprising an anionic polyelectrolyte, characterised in that said dispersing agent further comprises sufficient of a cationic polyelectrolyte to render the particles cationic. The aqueous suspension is useful in the manufacture of paper.

557064

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