ROSIN-MODIFIED PHENOLIC RESIN, PROCESS FOR PRODUCTION THEREOF, VARNISH FOR PRINTING INK, AND PRINTING INK
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United States of America Patent
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Issued Date -
Mar 14, 2013
app pub date -
May 19, 2010
filing date -
May 19, 2010
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Abstract
A rosin-modified phenolic resin, which consists of a reaction product among (a) a rosin that contains a component derived from communic acid in an amount of 0.1 to 0.8 wt %, (b) a condensation product of a phenol and formaldehyde, and (c) a polyol. The rosin-modified phenol resin makes it possible to produce a printing ink which has a good balance among ink performances such as fluidity, emulsification resistance, misting resistance, drying properties, and gloss.
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