A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer of carboxylic acid monomer units and ethylenically unsaturated monomer units. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with base...http://www.google.com.au/patents/US7989545?utm_source=gb-gplus-sharePatent US7989545 - Salt-sensitive binders for nonwoven webs and method of making same
