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1. (WO2016057417) METHOD OF INCREASING PAPER STRENGTH

Pub. No.:    WO/2016/057417    International Application No.:    PCT/US2015/054064
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Tue Oct 06 01:59:59 CEST 2015
IPC: D21H 17/54
D21H 17/55
D21H 17/56
D21H 21/18
Applicants: ECOLAB USA INC.
Inventors: BENZ, Bradley
RICHARDSON, Paul F.
THOMAS, James L.
LIU, Mei
LOWE, Robert M.
Title: METHOD OF INCREASING PAPER STRENGTH
Abstract:
The invention provides methods and compositions for increasing the strength of a paper sheet. The method involves adding to the paper sheet an amine containing polymer. The amine containing polymer interacts with materials such as GPAM or starch to make the paper stronger in terms including tensile strength, surface strength and bulk strength.