Inkjet inks for printing coded data comprising...

Details Inkjet inks for printing coded data comprising... Inkjet inks for printing coded data comprising...

2006-06-19

2010-11-23

Klemanski, Helene (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

Reexamination Certificate

active

07837775

ABSTRACT:
The present invention provides an inkjet ink comprising an IR-absorbing naphthalocyanine dye of formula (I):whereinM is selected from Si(A1)(A2), Ge(A1)(A2), Ga(A1), Mg, Al(A1), TiO, Ti(A1)(A2), ZrO, Zr(A1)(A2), VO, V(A1)(A2), Mn, Mn(A1), Fe, Fe(A1), Co, Ni, Cu, Zn, Sn, Sn(A1)(A2), Pb, Pb(A1)(A2), Pd and Pt;A1and A2are axial ligands, which may be the same or different, and are selected from —OH, halogen or —OR3;R1and R2are selected from H or C1-12alkoxy;R3is selected from C1-12alkyl, C5-12aryl, C5-12arylalkyl or Si(Rx)(Ry)(Rz); andRx, Ryand Rzmay be the same or different and are selected from C1-12alkyl, C5-12aryl, C5-12arylalkyl, C1-12alkoxy, C5-12aryloxy or C5-12arylalkoxy;W is selected from a sulfonic acid group (including salts thereof) or a sulfonamide group;n1 is 0, 1, 2 or 3;n2 is 0, 1, 2 or 3;n3 is 0, 1, 2 or 3;n4 is 0, 1, 2 or 3;provided that at least one of n1, n2, n3 or n4 is greater than 0. Inks of this type are especially suitable for use in netpage and Hyperlabel systems.

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