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:
Feb. 05, 2019
Filed:
Nov. 28, 2016
Applicant:
Kemira Oyj, Helsinki, FI;
Inventors:
Scott Rosencrance, Douglasville, GA (US);
Vladimir Grigoriev, Atlanta, GA (US);
Chen Lu, Marietta, GA (US);
Assignee:
KEMIRA OYJ, Helsinki, FI;
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/56 (2006.01); D21H 17/47 (2006.01); D21H 21/20 (2006.01); D21H 23/28 (2006.01); C08G 73/02 (2006.01); D21H 23/50 (2006.01);
U.S. Cl.
CPC ...
D21H 17/56 (2013.01); C08G 73/028 (2013.01); D21H 17/47 (2013.01); D21H 21/20 (2013.01); D21H 23/28 (2013.01); D21H 23/50 (2013.01);
Abstract
Paper strength systems including polyamine-polyamidoamine-epihalohydrin (PPAE) resin are disclosed. Also disclosed are methods of forming a paper including applying a strength system comprising PPAE to cellulosic fiber, as well as the resultant paper.