Mineral fiber products and method of preparing same

Claim 1

A PAPER PRODUCT HAVING IMPROVED WET STRENGHT CONSISTING MINERAL FIBERS IMPREGNATED WITH FROM ABOUT 0.4% TO ABOUT 12%, BASED ON THE DRY WEIGHT OF FIBER, OF A DRIED RESIDUE OF AN AQUEOUS SOLUTION OF A CATIONIC THERMOSETTING RESIN, SAID RESIN COMPRISING A WATER-SOLUBLE REACTION PRODUCT OBTAINED BY (1) REACTING A C3-C10 SATURATED ALIPHATIC DICARBOXYLIC ACID WITH A POLYALKYLENE POLYAMINE HAVING TWO PRIMARY AMINE GROUPS AND AT LEAST ONE SECONDARY AMINE GROUP IN A MOLE RATIO OF POLYALKYLENE POLYAMINE TO DICARBOXYLIC ACID OF FROM ABOUT 0.9:1 TO ABOUT 1.2:1 AND AT A TEMPERATURE FROM ABOUT 160*C. TO ABOUT 210*C. TO FORM A POLYAMIDE CONTAINING SECONDARY AMINE GROUPS, AND (2) REACTING THE POLYAMIDE WITH EPICHLOROHYDRIN AT A TEMPERATURE FROM ABOUT 45*C. TO ABOUT 70* C. AND IN A RATIO OF EPICHLOROYDRIN TO SECONDARY AMINE GROUPS OF SAID POLYAMIDE OF FROM ABOUT 1.0:1 TO ABOUT 1.5:1, SAID RESIN HAVING BEEN CURED TO A WATER-INSOLUBLE STATE AFTER IMPREGNATION OF SAID PRODUCT THEREWITH.