Abstract:
A starch composition is made by cooking a starch and combining the cooked starch with a polymer, the polymer containing anionic groups or potential anionic groups. Another starch composition is made by combining a starch with a polymer, the polymer containing anionic groups or potential anionic groups, and cooking the combined starch and polymer composition. A dry starch composition, suitable for forming an additive for a paper furnish, includes a starch and a polymer containing anionic groups or potential anionic groups. Methods of making the starch composition are also disclosed.
Abstract:
A starch composition is made by combining starch with a species which induces gelation, and cooking the starch before or after the combination, to produce a gel. The species which induces gelation is selected from the group consisting of the following species and combinations thereof: (a) one or more anionic, cationic or amphoteric inorganic colloidal species; (b) one or more species capable of ionic or coordination bonding; and (c) one or more species capable of hydrogen bonding. The invention also provides a dry starch composition suitable for forming an additive for a paper furnish. A method of making a starch composition is also provided.
Abstract:
A starch composition is made by cooking a starch and combining the cooked starch with a polymer, the polymer containing anionic groups or potential anionic groups. Another starch composition is made by combining a starch with a polymer, the polymer containing anionic groups or potential anionic groups, and cooking the combined starch and polymer composition. A dry starch composition, suitable for forming an additive for a paper furnish, includes a starch and a polymer containing anionic groups or potential anionic groups. Methods of making the starch composition are also disclosed.