Metal salt activators for use in leuco dye compositions

Details Metal salt activators for use in leuco dye compositions Metal salt activators for use in leuco dye compositions

2005-05-10

2005-05-10

Mulvaney, Elizabeth (Department: 1774)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C428S064800, C430S270110, C430S495100, C503S212000, C503S216000

Reexamination Certificate

active

06890614

ABSTRACT:
Compositions and methods for production of color images using leuco dye-containing color forming compositions are described. The color forming composition can include a color forming leuco dye, a metal salt activator, a suppression agent configured for inhibiting the activity of the metal salt activator until application of energy in the form of heat or light, and an initiator precursor. The initiator precursor is capable of liberating scavenger species which reduce the inhibiting action of the suppression agent. The color forming compositions can be a single phase mixture of a leuco dye, metal salt activator, suppression agent, and initiator precursor which are stable under ambient conditions and form a colored composition upon application of energy.

REFERENCES:
patent: 2777780 (1957-01-01), Cormack et al.
patent: 3445233 (1969-05-01), Cescon
patent: 3658543 (1972-04-01), Gerlach, Jr. et al.
patent: 3767449 (1973-10-01), Hayashi et al.
patent: 3900218 (1975-08-01), Miyamoto et al.
patent: 3952117 (1976-04-01), Miyamoto
patent: 4180405 (1979-12-01), Lawton
patent: 4876175 (1989-10-01), Chen et al.
patent: 5500040 (1996-03-01), Fujinami
patent: 5672560 (1997-09-01), Rush
patent: 5880062 (1999-03-01), Sanders et al.
patent: 6015589 (2000-01-01), Mehta et al.
patent: 6251571 (2001-06-01), Dessauer et al.
patent: 6329035 (2001-12-01), Iwasaki et al.
patent: 6432624 (2002-08-01), Kikuchi et al.
patent: 6660452 (2003-12-01), Iwasaki et al.
patent: 20030108708 (2003-06-01), Anderson et al.
patent: 20040146812 (2004-07-01), Gore et al.
patent: 20040213922 (2004-10-01), Abrams et al.
patent: 20040219327 (2004-11-01), Matsuishi et al.
patent: 0 381 492 (1990-08-01), None
patent: WO 0214442 (2002-02-01), None
patent: WO 03032299 (2003-04-01), None

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