METHOD OF INCREASING PAPER STRENGTH

• Main Authors: RICHARDSON, PAUL F, LOWE, ROBERT M, LIU, MEI, THOMAS, JAMES L, BENZ, BRADLEY
• Format: Patent
• Language: English; French
• Published: 14.04.2016
• Subjects: IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

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...