| abstract |
Properly arranged tertiary amino groups, such as tethered tertiary amino groups separated from the skeleton by at least two intervening atoms or terminal tertiary amino groups having multiple tertiary amino groups per terminus An aqueous cationic polyurethane dispersion for aqueous digital printing applications and other applications, comprising an aqueous dispersion of a polyurethane having the amino groups optionally quaternized and / or neutralized. Specifically, the present invention is directed to environmentally friendly (ie, having a substantially low solvent content) aqueous cationic, preferably high molecular weight polyurethane dispersions having a high solids content and a low viscosity. |