Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2006-09-19
2006-09-19
Klemanski, Helene (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C106S031600, C106S031430, C106S031750, C106S031470, C106S031490, C106S031770, C106S031780, C252S301160, C252S301340, C252S301350, C427S466000, C427S511000, C427S394000
Reexamination Certificate
active
07108742
ABSTRACT:
The invention relates to an ink composition containing (a) a compound of formula (I), Lm−Ln3+(Ch−)n(I), wherein Ln represents a lanthanide, CH−is a negatively charged ligand containing at least one UV absorbing double bond, n denotes 3 or 4, m denotes a number from 1 to 4, in case n is 3, m denotes a number from 1 to 4 and L is a neutral monodentate or polydentate nitrogen-, oxygen- or sulfur-containing UV absorbing ligand with the exception of 2,2′-bipyridyl or, in case n is 4, m denotes 1 and L is a single-charged cation; and (b) a liquid ink carrier, which can be used for applying hidden mark on objects which can only be revealed under UV exposure.
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Hall-Goulle Veronique
Koller Stefan
Mheidle Mickael
Ciba Specialty Chemicals Corporation
Klemanski Helene
Stevenson Tyler A.
Suhadolnik Joseph C.
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