ketone are described by dong a et al in macrol chem phys 199 2635 2640 1998 acid or quaternary amine functionality can be incorporated into these polyurethanes if needed for water dispersability by reacting an amine or hydroxy functional acid at one of the terminal isocyanate groups or a diamine or dihydroxy acid or quat as a linker or by using a chain extender with acid functionality such as 2 6 diaminohexanoic acid upon inversion of the polyurethane into water polymer polycarbonyls can be polyoxazoline polymers containing reactive ketone groups prepared from monomer 6a as illustrated in fig6 and described in u s pat no 6 235 901 to s c johnson other potential monomers reactive ketone oxazoline monomers not described in u s pat no 6 235 901 are 6b and 6c in fig6 the preparation of monomer 6b is described by badiang j et al in j org chem 61 2484 2487 polymer or resinous polycarbonyls can be water soluble or dispersible cellulose acetoacetates that are crosslinkable with polyamines their synthesis and properties are described by k j edgar in macromolecules 1995 28 4122 4128 polymer polycarbonyls can be prepared by ring opening metathesis polymerization romp examples of a romp homopolymer and a romp co polymer containing reactive ketone groups are illustrated in fig7 the co polymer containing the anhydride monomer can be opened with base alcohol or amine after polymerization to give a water soluble or dispersible polymer the half amide species offers.