Internally cross-linked macromolecules

Abstract From the Canadian patent

There are provided internally cross-linked stable polymeric, materials, in the form of substantially spherical particles each particle , consisting, essentially of a single macromolecule. They have the unusual property of being soluble or dispersible in a liquid medium without significantly increasing the viscosity of the medium, rendering them potentially useful in imaging applications, such as ink jet printers. They can be prepared by dissolving polymeric material in, a solvent system to form a solution of the polymeric material at a concentration, therein of less than the critical concentration for the polymer causing the , polymeric, material to contract into an approximately …