Patent Number: 6,294,645

Title: Dry-strength system

Abstract: The invention relates to resin systems useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resin system comprises a cationic component and an anionic component. The invention also relates to the process for incorporating these resin systems into paper and the paper produced containing the resin systems.

Inventors: Allen; Anthony J. (Wilmington, DE), Echt; Elliott (Wilmington, DE), Maslanka; William W. (Landenberg, PA), Peters; Jeffrey C. (Kalamazoo, MI)

Assignee: Hercules Incorporated

International Classification: C08G 73/00 (20060101); C08G 73/02 (20060101); D21H 21/18 (20060101); D21H 21/14 (20060101); D21H 17/00 (20060101); D21H 17/54 (20060101); C08G 069/48 (); C08G 073/02 (); C08L 079/02 ()

Expiration Date: 09/25/2018