Industrial deinking of ink compositions
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United States of America Patent
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Oct 20, 2020
Grant Date -
Jun 23, 2016
app pub date -
Jun 27, 2014
filing date -
Jun 28, 2013
priority date (Note) -
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Abstract
The ink composition comprises pigment particles and a stimulus responsive dispersing agent for dispersing said pigment particles in a protic polar solvent, for instance for inkjet printing, which stimulus responsive dispersing agent comprises an anchoring part for anchoring to said pigment particles, a stimulus responsive part as shown in formula (XXa) or (XXb) and a hydrophilic part for solvent stabilization of the pigment, wherein the stimulus responsive part upon exposure to a stimulus initiates decomposition of the stimulus responsive dispersing agent. The paper with the printed ink can be deinked in an industrial deinking process.
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