Gallium naphthalocyanine salts for use as improved infrared...

Compositions: coating or plastic – Coating or plastic compositions – Marking

Reexamination Certificate

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C540S131000, C540S132000, C540S133000

Reexamination Certificate



There is provided an IR-absorbing naphthalocyanine dye of formula (I):whereinM is Ga(A1);A1is an axial ligand selected from —OH, halogen, —OR3, —OC(O)R4or —O(CH2CH2O)eRewherein e is an integer from 2 to 10 and Reis H, C1-8alkyl or C(O)C1-8alkyl;R1and R2may be the same or different and are selected from hydrogen or C1-12alkoxy;R3is selected from C1-12alkyl, C5-12aryl, C5-12arylalkyl or Si(Rx)(Ry)(Rz);R4is selected from C1-12alkyl, C5-12aryl or C5-12arylalkyl;Rx, Ryand Rzmay be the same or different and are selected from C1-12alkyl, C5-12aryl, C5-12arylalkyl, C1-12alkoxy, C5-12aryloxy or C5-12arylalkoxy; andeach B is independently selected from a base, wherein BH+has a pKaof between 4 and 9. The dye is suitable for use in IR-absorbing inkjet inks, providing compatibility with known CMYK inks together with an optimally red-shifted λmax.

patent: 4648992 (1987-03-01), Graf et al.
patent: 4864618 (1989-09-01), Wright et al.
patent: 5051736 (1991-09-01), Bennett et al.
patent: 5477012 (1995-12-01), Sekendur
patent: 5652412 (1997-07-01), Lazzouni et al.
patent: 5661506 (1997-08-01), Lazzouni et al.
patent: 5692073 (1997-11-01), Cass
patent: 5852434 (1998-12-01), Sekendur
patent: 6076734 (2000-06-01), Dougherty et al.
patent: 6964374 (2005-11-01), Djuknic et al.
patent: 7122076 (2006-10-01), Vonwiller et al.
patent: 7148345 (2006-12-01), Vonwiller et al.
patent: 2008/0006177 (2008-01-01), Indusegaram et al.
patent: 2306669 (1997-05-01), None
patent: WO-99/18487 (1999-04-01), None
patent: WO-99/50787 (1999-10-01), None
patent: WO 2006/015414 (2006-02-01), None
patent: WO 2006/015415 (2006-02-01), None
Dymetman, M., and Copperman, M., “Intelligent Paper in Electronic Publishing, Artist Imaging, and Digital Typography, Proceedings of EP '98”, Mar./Apr. 1998, Springer Verlag LNCS 1375, pp. 392-406.


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