Patent ID: 6287418
Filing Date: 2001-09-11
Classification: C08F,C08G,C09D,D21H

Abstract:
A paper sheet comprising a synthetic polymer having a moiety capable of forming covalent or hydrogen bonds with cellulose and containing one or more amphiphilic hydrocarbon moieties, said polymer having the following structure: ##STR26##where:w.gtoreq.1;R.sub.1,R.sub.1 ',R.sub.2,R.sub.3 =H or C.sub.1-4 alkyl;a,b >0;c,d .gtoreq.0;R.sub.0 =a group capable of forming hydrogen or covalent bonds with cellulose;Q.sub.4 =a monomer unit or a block or graft copolymer containing a hydrophilic moiety;A.sub.1 =--H, --COOH;R.sub.4 =a Z.sub.1 --R.sub.6 radical,where:Z.sub.1 =any radical capable of bonding the R.sub.6 group to the polymer,R.sub.6 =a block or graft copolymer containing the amphiphilic hydrocarbon moiety;R.sub.5 =Z.sub.1 --R.sub.10 --W,where:Z.sub.1 =any radical capable of bonding the R.sub.10 group to the polymer;R.sub.10 =any linear or branched, aliphatic or aromatic hydrocarbon of 2 or more carbons; andW=--N.sup.+ R.sub.11,R.sub.12,R.sub.13, where R.sub.11,R.sub.12,R.sub.13 are C.sub.1-4 alkyl groups.