Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-03-15
2005-03-15
Yoon, Tae H. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S804000, C524S812000, C524S819000, C524S832000, C523S202000
Reexamination Certificate
active
06867251
ABSTRACT:
This invention relates to a process for making polymer-dye particles comprising, in order:I) forming a colorant mixture comprising a water insoluble dye and an organic medium containing at least one ethylenically-unsaturated monomer;II) combining the colorant mixture with an aqueous mixture comprising a surfactant and a co-stabilizer to form a colorant mixture/aqueous mixture;III) causing the colorant mixture/aqueous mixture to form a stable aqueous droplet mixture via strong agitation; andIV) initiating polymerization to form composite polymer-dye particles comprising a colorant phase and a polymer phase;wherein an addition polymerization initiator is added prior to initiating polymerization.It further relates to composite polymer dye particles prepared by the above process and to composite polymer dye particles comprising a colorant phase containing a water insoluble dye, and a polymer phase, said particles being associated with a co-stabilizer.
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U.S. Appl. No. 09/510,879 of Huijuan D. Chen et al, filed Feb. 23, 2000 “Ink Jet Printing Method”.
Chen Huijuan D.
Wang Xiaoru
Eastman Kodak Company
Meeks Roberts Sarah
Yoon Tae H.
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