Dispersed pigmented hot melt ink
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United States of America Patent
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Oct 1, 1991
Grant Date -
N/A
app pub date -
May 23, 1990
filing date -
May 23, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the embodiments described in the specification, a dispersed, pigmented hot melt ink contains a thermoplastic vehicle, a colored pigment, and a dispersing agent to inhibit settling or agglomeration of pigment when the ink is molten comprising an isocyanate-modified microcrystalline wax or lignite wax in an amount of 2 to 100 weight percent of the weight of the vehicle. Preferred is the isocyanate-modified microcrystalline wax marketed as Petrolite WB17.
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