solution of polyacrylic acid mw 30 000 with similar results in improved wet strength properties of the wet mat the procedure of example 2 was repeated using a 0 5 solution of polyitaconic acid mw 30 000 the wet strength was improved to the same extent as in the previous examples the procedure of example 2 was repeated using polymethacrylic acid with similar results the procedure of example 2 was repeated using polymaleic acid with similar results the procedure of example 2 was repeated using copolymaleic acid acrylic acid with similar results the procedure of example 2 was repeated using the half ethyl ester of copolymaleic acid methyl vinyl ether with similar results in this example a conventional pilot production unit was employed accordingly a 0 5 fiber glass dispersion was prepared in a mixing tank using a 20 ppm solution of dimethyl hydrogenated tallowamine oxide aromox dmht from armak the fiber glass used was chopped e glass 15 micron diameter and 11 2 34 long this dispersion was pumped into the headbox of the pilot machine and simultaneously diluted with fresh 20 ppm solution of dimethyl hydrogenated tallow amine oxide to give a final glass fiber consistency in the headbox of 0 14 this diluted dispersion then was distributed onto a moving foraminous belt at such a rate that a wet mat of about 2.