Soybean oil-based intaglio ink and method for making same
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United States of America Patent
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Oct 29, 1996
Grant Date -
N/A
app pub date -
May 31, 1995
filing date -
May 31, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is an intaglio ink comprising a varnish comprising an alkyd-modified soybean oil and method for producing same. Preferably, the alkyd-modified soybean oil is made by combining soybean oil, pentaerythritol and trimellitic anhydride at elevated temperature. The varnish may further comprise a thermoplastic phenolic resin. Methods of making the alkyd modified soybean oil, thermoplastic phenolic resin, the varnish and the ink are also disclosed.
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