Phase change ink formulation using urethane isocyanate-derived resins and a polyethylene wax
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United States of America Patent
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Jan 25, 2000
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app pub date -
Feb 13, 1998
filing date -
Jun 28, 1996
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Abstract
Urethane resins are made by reacting selected nucleophiles, including alcohols, with an isocyanate. The order of addition of the isocyanate and the different nucleophiles can tailor the distribution of di-urethane and mixed urethane/urea molecules in the final resin product. The isocyanate-derived resin materials are useful as ingredients as phase change ink carrier compositions used to make phase change ink jet inks.
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