D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/69 (2006.01) D21H 17/29 (2006.01) D21H 17/45 (2006.01) D21H 17/54 (2006.01)
Patent
CA 2590489
The invention relates to a method for producing paper, paperboard and cardboard in the presence of an aqueous suspension of components containing fine-particles of filler material. The fine-particle filler materials are covered at least partially with water-soluble amphoteric copolymers. Said method consists in adding to the fibre suspension, prior to the formation of the sheet, and in addition to the aqueous suspension of components containing fine-particles filler material, at least one cationic and/or amphoteric polymer which, as a structural element, does not contain any ester unsaturated carboxylic acids with quaternised amino alcohols.
Procédé de fabrication de papier, de carton-pâte et de carton à l'aide d'une suspension dense aqueuse de constituants contenant des matières de charge à fines particules. Lesdites matières de charge à fines particules sont couvertes au moins partiellement de copolymères amphotères hydrosolubles. Ledit procédé consiste à ajouter à la suspension de fibres, avant la formation de la feuille, en plus de la suspension dense aqueuse de constituants contenant des matières de charge en fines particules, au moins un polymère cationique et / ou amphotère qui, en tant qu'élément structural, ne contient pas d'esters d'acides carboxyliques insaturés avec des amino-alcools quaternisés.
Esser Anton
Haehnle Hans-Joachim
von Vadkerthy Tibor Adalbert
Basf Aktiengesellschaft
Robic
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