Patent ID: 6426121
Filing Date: 2002-07-30
Classification: C08F,C08L,C09D,D04H,D21H

Abstract:
In a process for forming a nonwoven web bonded with a polymeric emulsion containing a crosslinkable polymer wherein a polymeric emulsion is applied to the nonwoven web, the water removed, and the crosslinkable polymer subsequently crosslinked, the improvement which comprises:utilizing a polymeric emulsion wherein the crosslinkable polymer is formed in the presence of poly(vinyl alcohol) and thereby incorporates hydroxyl functionality and, in addition thereto, incorporates pendent carboxylic acid functionality; and crosslinking the hydroxyl functionally in the crosslinkable polymer by reaction with an effective amount of a polyaldehyde, and, crosslinking the carboxylic acid functionality by reaction with an effective amount of a polyaziridine compound.