Use of dispersions of crosslinked cationic starch in papermaking
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United States of America Patent
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Jan 9, 2007
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N/A
app pub date -
Jul 24, 2001
filing date -
Jul 24, 2000
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Abstract
Starch dispersions comprising discrete particles of crosslinked cationic starch in an aqueous liquid can be used in papermaking. They can be used as a wet-end additive or in surface coating. The starch dispersions can be prepared by a process comprising: (a) obtaining a mixture of cationic starch and an aqueous liquid, (b) processing the mixture using shear forces in the presence of a crosslinker: and (c) adding and mixing in a hydroxylic liquid to obtain the starch dispersions.
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