The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2001
Filed:
Jul. 25, 1997
Applicant:
Inventors:
Anthony J. Allen, Wilmington, DE (US);
Elliott Echt, Wilmington, DE (US);
William W. Maslanka, Landenberg, PA (US);
Jeffrey C. Peters, Kalamazoo, MI (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/948 ; C08G 7/302 ; C08L 7/902 ;
U.S. Cl.
CPC ...
C08G 6/948 ; C08G 7/302 ; C08L 7/902 ;
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.