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US 6,303,000 B1Granted
Paper making process utilizing a reactive cationic starch composition
AssigneeOMNOVA Solutions Inc.
InventorsWilliam C. Floyd, Nolan Thompson, Louis R. Dragner
Life of this patent
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Abstract
A method for manufacturing paper with improved strength by introducing into the paper pulp in the wet end of a paper making process an aqueous starch dispersion of a gelatinized cationic starch and a blocked glyoxal resin.
Claims12
A method for manufacturing paper sheet comprising:
- adding to a paper pulp slurry in the wet end of a paper making machine an aqueous reaction product of a cationic starch and a blocked glyoxal compound, wherein said reaction occurs during the gelatinization of said starch and prior to said addition;
- forming the paper sheet;
- and
- drying the paper sheet.
1 more element
A method for manufacturing paper comprising:
- adding an aqueous reaction product of a cationic starch and a blocked glyoxal compound to a paper pulp slurry in a wet end of a paper making machine, wherein said reaction occurs during gelatinization of said starch and prior to said addition;
- forming paper;
- and
- drying the paper.
1 more element
Dependencies are inferred from the claim text.