Patent ID: 6749721
Filing Date: 2004-06-15
Classification: C08F,C08G,D21H

Abstract:
A synthetic co-polymer derived from the reaction of an aldehyde functional polymer and an aldehyde reactive paper modifying agent containing a non-hydroxyl aldehyde reactive functional group, said synthetic co-polymer having the following structure: wherein:f>0; a, c, e&gE;0; w&gE;1; Q1=a monomer unit or a block or graft copolymer prepared from the polymerization of one or more ethylenically unsaturated compounds containing a pendant group capable of forming hydrogen bonds with cellulose; R1, R1â€², R1â€³=independently H or C1-4 alkyl; R2=any linear or branched, aliphatic or aromatic, saturated or unsaturated, substituted or unsubstituted hydrocarbon group containing a pendant aldehyde functionality; R3=a polysiloxane; Z2=a covalently bonded bridging radical formed by the reaction of an aldehyde functionality with a reactive entity on the aldehyde reactive paper modifying agent; and, Q3=a monomer unit or a block or graft copolymer containing a charge functionality wherein the charge functionality is selected from the group consisting of: cationic; anionic; and, amphoteric.