Patent ID: 6111057
Filing Date: 2000-08-29
Classification: C08G,C11D

Abstract:
A water-soluble or water-dispersible amino acid based polymer, oligomer or copolymer containing units of an amino acid and units of a polymerizable compound, wherein the amino acid based polymer has the general formula: ##STR9## wherein the polymer, oligomer or copolymer contains at least about 5 mole % of a basic amino acid,each R.sup.1 is selected from the group consisting of H, C.sub.1 -C.sub.18 saturated or unsaturated, branched or linear alkyl, C.sub.2 -C.sub.18 saturated or unsaturated, branched or linear hydroxyalkyl, C.sub.3 -C.sub.8 cycloalkyl, C.sub.6 -C.sub.18 aryl and C.sub.7 -C.sub.18 alkylaryl;each R.sup.2 is independently selected from the group consisting of H, NH.sub.2, ##STR10## each R.sup.3 is independently selected from the group consisting of OH, OM, N (R.sup.1).sub.2, ##STR11## each R.sup.5 is independently selected from the group consisting of C.sub.1 -C.sub.12 linear or branched alkylene, cyclic alkylene, C.sub.2 -C.sub.12 linear oxa-substituted alkylene, C.sub.2 -C.sub.12 branched oxa-substituted alkylene, C.sub.3 -C.sub.12 cyclic oxa-substituted alkylene, and ##STR12## wherein: each x is independently from 0 to about 200,each y is independently from 0 to 10,each z is independently from 1 to about 7each a is independently from about 1 to about 12,M is selected from compatible cations; andprovided that:the sum of all x's is from 2 to about 200;any basic amine site on the polymer, oligomer, or copolymer may be optionally protonated, alkylated or quaternized with groups selected from the group consisting of H, alkyl, hydroxyalkyl, benzyl and mixtures thereof,any amine site may be optionally alkoxylated, andwhen two R.sup.1 groups are attached to a common nitrogen, the two R.sup.1 's may form a cyclic structure selected from the group consisting of C.sub.5 -C.sub.8 -alkylene, and C.sub.4 -C.sub.7 -alkyleneoxyalkylene.