Hydrophobic coagulants used as retention and drainage aids...

Details Hydrophobic coagulants used as retention and drainage aids... Hydrophobic coagulants used as retention and drainage aids...

D - Textiles, Paper

21

H

D21H 17/53 (2006.01) D21H 17/00 (2006.01) D21H 17/37 (2006.01) D21H 17/41 (2006.01) D21H 17/72 (1990.01)

Patent

CA 2122956

ABSTRACT OF THE DISCLOSURE A process for making paper which comprises forming an aqueous cellulosic suspension, adding a hydrophobic coagulant and a flocculant to the cellulosic suspension, draining the cellulosic suspension to form a sheet and drying the sheet, wherein the hydrophobic coagulant comprises a copolymer of diallyl dimethyl ammonium chloride and a hydrophobic monomer selected from the group consisting of: quaternized dialkylaminoalkylacrylates, quaternized dialkylaminoalkylmethacrylates, and long chain alkyl (C6 to C20) esters of (meth)acrylic acids.

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