Use of dispersions of crosslinked cationic starch in...

Details Use of dispersions of crosslinked cationic starch in... Use of dispersions of crosslinked cationic starch in...

2007-01-09

2007-01-09

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S158000, C162S181100, C162S185000, C536S047000

Reexamination Certificate

active

10333858

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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