D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/20 (2006.01) D21H 17/35 (2006.01) D21H 17/37 (2006.01) D21H 21/20 (2006.01) D21H 23/04 (2006.01)
Patent
CA 2584688
A process of making paper by providing a cellulosic suspension comprising cellulosic fibres and optionally fillers, dewatering the cellulosic suspension on a wire or mesh to form a sheet and drying the sheet in which a polymeric additive is included in the process, in which the polymeric additive is a polymer comprising an ethylenically unsaturated water-soluble or potentially water-soluble monomer and an ethylenically unsaturated monomer carrying a reactive group.
La présente invention concerne un procédé de fabrication de papier qui comprend une suspension cellulosique comprenant des fibres cellulosiques et éventuellement des charges, l~épaississement de la suspension cellulosique sur une toile ou un tamis pour former une feuille et le séchage de la feuille. Ledit procédé comprend un additif polymère, ledit additif polymère étant un polymère comprenant un monomère non saturé éthyléniquement soluble dans l~eau ou potentiellement soluble dans l~eau ainsi qu~un monomère non saturé éthyléniquement qui porte un groupe réactif.
Cockcroft Robert
Singh Michael
Ciba Specialty Chemicals Water Treatments Limited
Fetherstonhaugh & Co.
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