Synthetic paper sheet of chemically bonded synthetic polymer fibers and process of making the same

Claim 2

A SYNTHETIC PAPER SHEET COMPOSED OF A BATT CONSISTING ESSENTIALLY OF A MASS OF RETICULATED MOLECULARLY ORIENTED FIBER, THE SAID FIBER BEING COMPOSED OF A FIBER FORMING LINEAR, SYNTHETIC POLYMER WHEN RECURRING UNITS ARE LINKED THROUGH AMIDE NITROGEN TO PROVIDE A RECURRING LINKAGE FROM THE CLASS CONSISTING OF A POLYAMIDE, A POLYURETHANE, A POLYUREA AND A POLYSULFONAMIDE, THE SAID RECURRING LINKAGE BEING AN INTEGRAL PART OF THE POLYMER CHAIN, THE SAID FIBERS BEING SELF-BONDED ONLY AT THE POINTS WHERE THE FIBERS INTERSECT EACH OTHER, THE SAID SELF-BOND HAVING BEEN ACCOMPLISHED BY A JOININDUCING SALT, THOSE PORTIONS OF THE FIBERS BETWEEN THE POINTS OF FIBER INTERSECTION POSSESSING SUBSTANTIALLY THE SAME PHYSICAL AND CHEMICAL CHARACTERISTICS AS THEY POSSESSED PRIOR TO THE FORMATION OF THE BONDS.

Claim 3

A PROCESS OF MAKING A SYNTHETIC PAPER SHEET WHICH COMPRISES APPLYING, TO A BATT OF RETICULATED MOLECULARLY ORIENTED FIBER, THE SAID FIBER BEING COMPOSED OF FIBERFORMING LINEAR, SYNTHETIC POLYMER WHEREIN RECURRING UNITS ARE LINKED THROUGH AMIDE NITROGEN, TO PROVIDE A POLYMER FROM THE CLASS CONSISTING OF A POLYAMIDE, THE SAID RECURRING A POLYUREA AND A POLYSULFONAMIDE, THE SAID RECURRING AMIDE NITROGEN BEING AN INTEGRAL PART OF THE POLYMER CHAIN, A SOLUTION CONSISTING ESSENTIALLY OF A JOIN-INDUCING SALT FOR SAID FIBERS, THE SAID SALT BEING A HYDRATE-FORMING SALT OF AN INORGANIC ACID SUFFICIENTLY SOLUBLE IN WATER TO YIELD AT LEAST 10% SOLUTIONS, THE SAID SOLUTION BEING INITIALLY AT A CONCENTRATION SUFFICIENTLY DILUTE TO AVOID SUBSTANTIALLY ALTERING THE PHYSICAL AND CHEMICAL PROPERTIES OF THE FIBER STRUCTURE, HEATING THE SAID BATT BEARING THE SAID DILUTE SALT SOLUTION UNTIL THE SALT SOLUTION BECOMES CONCENTRATED AND LOCATED SUBSTANTIALLY ONLY AT THE POINTS OF FIBER INTERSECTION, AND THE FIBERS ARE SELF-BONDED TO EACH OTHER AT THEIR POINTS OF INTERSECTION, THOSE PORTIONS OF THE FIBERS BETWEEN THE POINTS OF FIBER INTERSECTION POSSESSING SUBSTANTIALLY THE SAME PHYSICAL AND CHEMICAL CHARACTERISTICS AS THEY POSSESSED PRIOR TO THE FORMATION OF THE BONDS, THE SAID HEATING OCCURING OVER A PERIOD OF AT LEAST ABOUT 30 SECONDS AND AT A TEMPERATURE WITHIN A RANGE OF FROM ABOUT 90*C. TO ABOUT 170*C.

Claim 4

A PROCESS OF MAKING A SYNTHETIC PAPER SHEET WHICH COMPRISES APPLYING, TO A BATT OF RETICULATED MOLECULARLY ORIENTED FIBER, THE SAID FIBER BEING COMPOSED OF FIBERFORMING LINEAR, SYNTHETIC POLYMER WHEREIN RECURRING UNITS ARE LINKED THROUGH AMIDE NITROGEN, TO PROVIDE A POLYMER FROM THE CLASS CONSISTING OF A POLYAMIDE, THE SAID RECURRING A POLYUREA AND A POLYSULFONAMIDE, THE SAID RECURRING AMIDE NITROGEN BEING AN INTEGRAL PART OF THE POLYMER CHAIN, A SOLUTION CONSISTING ESSENTIALLY OF A JOIN-INDUCING SALT FOR SAID FIBERS, THE SAID SALT BEING A HYDRATE-FORMING SALT OF AN INORGANIC ACID SUFFICIENTLY SOLUBLE IN WATER TO YIELD AT LEAST 10% SOLUTIONS, THE SAID SOLUTION BEING INITIALLY AT A CONCENTRATION SUFFICIENTLY DILUTE TO AVOID SUBSTANTIALLY ALTERING THE PHYSICAL AND CHEMICAL PROPERTIES OF THE FIBER STRUCTURE, HEATING THE SAID BATT BEARING THE SAID DILUTE SALT SOLUTION UNTIL THE SALT SOLUTION BECOMES CONCENTRATED AND LOCATED SUBSTANTIALLY ONLY AT THE POINTS OF FIBER INTERSECTION, AND THE FIBERS ARE SELF-BONDED TO EACH OTHER AT THEIR POINTS OF INTERSECTION, THOSE PORTIONS OF THE FIBERS BETWEEN THE POINTS OF FIBER INTERSECTION POSSESSING SUBSTANTIALLY THE SAME PHYSICAL AND CHEMICAL CHARACTERISTICS AS THEY POSSESSED PRIOR TO THE FORMATION OF THE BONDS, THE SAID HEATING OCCURING OVER A PERIOD OF AT LEAST ABOUT 30 SECONDS AND AT A TEMPERATURE WITHIN A RANGE OF FROM ABOUT 90*C. TO ABOUT 170*C.