Derivatized malto-oligosaccharides, methods for trash scavenging, and process for preparing a paper web
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United States of America Patent
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Apr 23, 2002
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app pub date -
Jun 5, 2000
filing date -
Jun 5, 2000
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Abstract
Disclosed is a method for derivatizing a malto-oligosaccharide. The method includes the steps of providing the malto-oligosaccharide and derivatizing the malto-oligosaccharide in an aqueous medium with a cationic agent to form a derivatized malto-oligosaccharides. Malto-oligosaccharides having a high DS sufficient to render the derivatized product suitable for use as a trash scavenger are attainable in accordance with the present inventive method. Also disclosed are a method for trash scavenging, a process for preparing a paper web, in which anionic trash is scavenged prior to withdrawing a paper web from a pulp furnish; and a paper web prepared in accordance with the present inventive process.
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