Record receiver having plural interactive leaves or a colorless – Having plural interactive leaves
Reexamination Certificate
2005-03-22
2005-03-22
Hess, B. Hamilton (Department: 1774)
Record receiver having plural interactive leaves or a colorless
Having plural interactive leaves
C106S031430, C106S031450
Reexamination Certificate
active
06869909
ABSTRACT:
Disclosed is a dye combination and a thermal dye transfer yellow donor element containing the combination of dyes useful for forming a light stable yellow image comprising a yellow dye having the formula:wherein:R1and R2each independently represents an alkyl group of from 1 to 10 carbons atoms or a cycloalkyl group of from 5 to 7 carbon atoms;R3and R4each independently represents hydrogen, or an unsubstituted lower alkyl group of 1 to 4 carbon atoms;each Y independently represents halogen, or a lower alkyl or alkoxy group of 1 to 4 carbon atoms; andm is 0 to 4.Such a dye combination and element provide improved color and stability, especially for proofing.
REFERENCES:
patent: 4701439 (1987-10-01), Weaver et al.
patent: 4833123 (1989-05-01), Hashimoto et al.
patent: 5081101 (1992-01-01), Evans et al.
L. A. Kaszczuk, et al, “Thermal Yellow Donor and Dyes”, USSN 10/ , (D-83869) filed May 22, 2002.
Carroll-Lee Ann L.
Chapman Derek D.
Kaszczuk Linda A.
Wang Ruizheng
Weidner Charles H.
Eastman Kodak Company
Hess B. Hamilton
Manne Kathleen Neuner
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