D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/29 (2006.01) C08B 31/00 (2006.01) C08B 31/12 (2006.01) C08L 3/02 (2006.01) D21H 21/10 (2006.01) D21H 21/18 (2006.01)
Patent
CA 2386403
A modified polysaccharide having enhanced surface charge. The polysaccharide is modified to include a cationic polymer, preferably a polyquaternary amine, and has a surface charge from about +5 to about +20 mV. The modified polysaccharide can be advantageous incorporated into a papermaking furnish with enhanced retention.
La présente invention concerne un polysaccharide modifié présentant une augmentation de sa surface de charge. Le polysaccharide est modifié afin d'inclure un polymère cationique, de préférence une amine polyquaternaire, et obtenir une surface de charge allant d'environ +5 à environ + 20 mV. On peut avantageusement incorporer ce polysaccharide dans une composition de fabrication de papier à rétention améliorée.
Thomson Sherry L.
Vrbanac Michael D.
Smart & Biggar
Weyerhaeuser Company
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