Back to results
US 2016/0097161 A1Published application
Method of increasing paper strength
AssigneeEcolab USA Inc.
InventorsBradley Benz, Paul F. Richardson, James L. Thomas, Mei Liu, Robert M. Lowe
Life of this patent
Estimating the term…
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.
Claims14
A method of strengthening paper, the method comprising the step of contacting a paper sheet in the wet end of a papermaking process with a composition, the composition comprising a GPAM polymer and an amine containing polymer.
Dependencies are inferred from the claim text.