Patent ID: 7816472
Filing Date: 2010-10-19
Classification: C08G,C09D,Y10T

Abstract:
1. A polymer prepared by a method comprising: providing an isocyanate-reactive component; providing a diacetylene-containing isocyanate-reactive component; providing an isocyanate-functional component; providing a reactive emulsifying compound; and optionally providing a catalyst; combining the isocyanate-reactive component, the diacetylene-containing component, the isocyanate-functional component, the reactive emulsifying compound, and the optional catalyst in an organic solvent and allowing them to react to form a diacetylene-containing polymer; and dispersing, and optionally chain extending, the diacetylene-containing polymer in a dispersing medium comprising water to form an aqueous dispersion comprising the diacetylene-containing polymer; wherein the diacetylene-containing polymer undergoes a color change upon irradiation to form a polydiacetylene-containing polymer; wherein the reactive emulsifying compound is represented by Formula (IV): wherein: or the reactive emulsifying compound is represented by Formula (V): wherein: