Nonpolar liquid and solid phase change ink compositions comprising nanosized particles of benzimidazolone pigments
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United States of America Patent
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Dec 28, 2010
Grant Date -
Oct 7, 2010
app pub date -
Jun 21, 2010
filing date -
Mar 7, 2008
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Abstract
An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is a substituted pyridine derivative, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
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