Ultraviolet radiation curable ink composition and a process for its application on glass substrates
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United States of America Patent
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Sep 28, 2004
Grant Date -
May 23, 2002
app pub date -
Aug 9, 2001
filing date -
Dec 22, 1998
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Abstract
An ultraviolet radiation curable organic ink composition, comprising 80% to 95% by weight of an epoxy-polyurethane-based ink; 0.5% to 8% by weight of an additive including a mixture of polyethylenic waxes and polythetrafluoroethylenic waxes; 1% to 8% by weight of a blocked aliphatic polyisocyanate catalyst; and an adhesion promoter primer including 0.15% to 3% by weight of a silane, which can be directly included in the ultraviolet radiation curable organic ink composition or independently applied to a substrate, in order that the blocked aliphatic polyisocyanate catalyst promote a polymerization reaction and a crosslinking reaction between the epoxy-polyurethane-based ink and the adhesion promoter, when heated to 160 to 200.degree. C., forming an interpenetration network.
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