Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2005-01-25
2005-01-25
Klemanski, Helene (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C106S031320, C106S031640, C252S301350
Reexamination Certificate
active
06846350
ABSTRACT:
Disclosed is a red luminous ink composition comprising a europium complex represented by the formula:wherein R1is a hydrogen atom or a substituent selected from the group consisting of an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms and a halogen atom, R is a group selected from the group consisting of a fluorine-comprising alkyl group having from 1 to 20 carbon atoms, a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms, a substituted or unsubstituted aralkyl group having from 7 to 10 carbon atoms and a substituted or unsubstituted aryl group having from 6 to 12 carbon atoms. The red luminous ink composition exhibits satisfactory emission intensity under ultraviolet irradiation.
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Imanishi Keishi
Yamasaki Yasuhiro
Klemanski Helene
Orient Chemical Industries Ltd.
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