Thermosetting dyed latex colorant dispersions

Details Thermosetting dyed latex colorant dispersions Thermosetting dyed latex colorant dispersions

1987-08-18

1990-07-31

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523402, 523412, 523414, C08L 6300, C08K 320

Patent

active

049451219

ABSTRACT:
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.

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