D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
9/59
D21H 17/44 (2006.01) D21H 17/37 (2006.01) D21H 17/45 (2006.01) D21H 17/63 (2006.01) D21H 17/68 (2006.01)
Patent
CA 1276413
PAPERMAKING PROCESS Abstract of the Disclosure: In a process for making paper from an aqueous paper pulp, especially a pulp containing bleached/ unbleached mechanical pulps or unbleached chemical pulps, a combination of chemicals is added for improv- ing drainage and retention. As drainage- and retention- improving aids are added a cationic polyacrylamide and a sol of colloidal inorganic particles having at least one surface layer of aluminium silicate or aluminium-modified silicic acid.
505607
Andersson Kjell Rune
Barla Pavol
Yrjans Lars Johnny
Eka Nobel Aktiebolag
Gowling Lafleur Henderson Llp
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