Sizing of paper with fatty acid polyalkylenepolyamine compositions

Claim 1

A METHOD OF PRODUCING SIZED PAPER WHICH COMPRISES: ADSORBING ON CELLULOSIC FIBERS IN THE ABSENCE OF ROSIN SIZE BETWEEN ABOUT 0.2% AND 5%, BASED ON THE DRY WEIGHT THEREOF, OF A LONG CHAIN FATTY ACID-POLYALKYLENEPOLYAMINE REACTION PRODUCT CORRESPONDING TO THAT FORMED BY HEATING A WATER-SOLUBLE POLYALKYLENEPOLYAMINE AT AN ACYLATION TEMPERATURE WITH BETWEEN ABOUT 3/7 AND 2/3 MOLECULE OF A HIGHER SATURATED FATTY ACID FOR EACH NITROGEN ATOM IN THE POLYALKYLENEPOLYAMINE, UNTIL BETWEEN ABOUT 50% TO ABOUT 99% OF THE FATTY ACID HAS REACTED WITH THE AMINE WITH EVOLUTION OF WATER, THEREBY FORMING A WATER-INSOLUBLE HIGHER FATTY ACID SALT OF A HIGHER FATTY ACID ACYLATED POLYALKYLENEPOLYAMINE, SAID POLYALKYLENEPOLYAMINE CONTAINING BETWEEN 3 AND 5 NITROGEN ATOMS AND SAID FATTY ACID CONTAINING 14 TO 22 CARBON ATOMS, AND COMBINING SAID WATER-INSOLUBLE ACYLATED POLYALKYLENEPOLYAMINE SALT WITH A WATER SOLUBLE ACID TO RENDER SAID ACYLATED POLYALKYLENEPOLYAMINE SALT WATER-DISPERSIBLE; AND HEATING SAID TREATED FIBERS AT BETWEEN ABOUT 105* C. AND 150* C. FOR ABOUT 1/2 TO 3 MINUTES TO DRY THE SAME AND DEVELOP THE WATER-REPELLENT PROPERTIES OF THE ACYLATED POLYALKYLENEPOLYAMINE THEREON.

Claim 2

A METHOD OF PRODUCING SIZED PAPER WHICH COMPRISES: ADSORBING ON CELLULOSIC FIBERS IN THE ABSENCE OF ROSIN SIZE BETWEEN ABOUT 0.2% AND 5%, BASED ON THE DRY WEIGHT THEREOF, OF A LONG CHAIN FATTY ACID-POLYALKYLENEPOLYAMINE REACTION PRODUCT CORRESPONDING TO THAT FORMED BY HEATING A WATER-SOLUBLE POLYALKYLENEPOLYAMINE AT AN ACYLATION TEMPERATURE WITH BETWEEN ABOUT 3/7 AND 2/3 MOLECULE OF A HIGHER SATURATED FATTY ACID FOR EACH NITROGEN ATOM IN THE POLYALKYLENEPOLYAMINE, UNTIL BETWEEN ABOUT 50% TO ABOUT 99% OF THE FATTY ACID HAS REACTED WITH THE AMINE WITH EVOLUTION OF WATER, THEREBY FORMING A WATER-INSOLUBLE HIGHER FATTY ACID SALT OF A HIGHER FATTY ACID ACYLATED POLYALKYLENEPOLYAMINE, SAID POLYALKYLENEPOLYAMINE CONTAINING BETWEEN 3 AND 5 NITROGEN ATOMS AND SAID FATTY ACID CONTAINING 14 TO 22 CARBON ATOMS, AND COMBINING SAID WATER-INSOLUBLE ACYLATED POLYALKYLENEPOLYAMINE SALT WITH A WATER SOLUBLE ACID TO RENDER SAID ACYLATED POLYALKYLENEPOLYAMINE SALT WATER-DISPERSIBLE; AND HEATING SAID TREATED FIBERS AT BETWEEN ABOUT 105* C. AND 150* C. FOR ABOUT 1/2 TO 3 MINUTES TO DRY THE SAME AND DEVELOP THE WATER-REPELLENT PROPERTIES OF THE ACYLATED POLYALKYLENEPOLYAMINE THEREON.