04945121 is referenced by 21 patents and cites 41 patents.

Process characterized by dissolving a dye in a solution of organic solvent and an epoxy type polymer, which requires a curing agent in order to create a resultant nanosphere that will crosslink through the action of the curing agent, and not simply as the result of a solvent removal which defined each nanosphere. The dye may be in concentration range of 1% to 50% by weight of solvent, and the organic solvent must have limited solubility in water, typically less than 20%. An initial intermolecular mixing step dissolves dye and epoxy resin within a solvent so as to make a homogeneous solvent/polymer/dye intermediate mixture, that then is dispersed as nanoparticles in water, and thereafter crosslinked. Surfactants may be used to assist in dispersing the dye/polymer/solvent solution into the water continuous phase.

Title
Thermosetting dyed latex colorant dispersions
Application Number
7/86741
Publication Number
4945121
Application Date
August 18, 1987
Publication Date
July 31, 1990
Inventor
Garry T Gwozdz
Nazareth
PA, US
Fortunato J Micale
Bethlehem
PA, US
Agent
Fitzpatrick Cella Harper & Scinto
Assignee
Koh I NOOR Radiograph
NJ, US
IPC
C08K 3/20
C08L 63/00
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