Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Patent
1996-09-05
1998-04-28
Baxter, Janet C.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
430320, 430915, 430325, G03C 1492, G03F 500
Patent
active
057442800
ABSTRACT:
Storage-stable photoimageable leuco dye/photooxidant compositions and imaging processes utilizing these compositions are disclosed. These compositions comprise deuterated leuco compounds, e.g., deuterated aminotriarylmethanes, wherein the extent of deuteration is preferably at least 60%. These new compositions and the processes utilizing these new compositions afford improved monochrome images having enhanced film stabilities and image contrast characteristics, wherein desirable higher optical densities in imaged areas (D.sub.imaged) and desirable lower optical densities in unimaged areas (D.sub.unimaged, D.sub.fixed, and D.sub.forccd) are simultaneously both achieved in accordance with the compositions and processes of the instant invention.
REFERENCES:
patent: 3598592 (1971-08-01), Cescon
patent: 4602263 (1986-07-01), Borror et al.
patent: 4720449 (1988-01-01), Borror et al.
patent: 4945020 (1990-07-01), Kempf et al.
patent: 5236884 (1993-08-01), Boggs et al.
patent: 5256618 (1993-10-01), Takahashi et al.
patent: 5350870 (1994-09-01), Boggs et al.
patent: 5391748 (1995-02-01), Berneth
patent: 5395736 (1995-03-01), Grasshoff et al.
patent: 5445917 (1995-08-01), Grasshoff et al.
patent: 5449657 (1995-09-01), Takahashi
patent: 5453345 (1995-09-01), Grasshoff et al.
patent: 5527655 (1996-06-01), Bonham et al.
patent: 5534388 (1996-07-01), Grasshoff et al.
Richie, C P. et al., "Application of Linear Free Energy Relationships to Some Reactions of Triarylmethane Derivatives," J.Am.Chem.Soc., 84, 2349, 1962.
MacLachlan, A., "The Carbon Tetrachloride Sensitized Photooxidation of Leuco Ethyl Crystal Violet," J.Phys.Chem., 71, 718, 1967.
Lewis, E. S., et al. "Rates and Isotope Effects in the Quinone Oxidation of Leuco Triphenylmethane Dyes," J.Am.Chem.Soc., 92, 899-905, 1970.
MacLachlan, A., et al., "The Biimidazole-Sensitized Photooxidation of Leuco Triphenylmethane Dyes," J.Org.Chem., 36, 16, 2275-2280, 1971.
Ayyangar, N. R., et al., "Basic Dyes," The Chemistry of Synthetic Dyes, IV, 103-160, 1971.
Saeva, F. D., et al., "Carbocation Photochemistry. Electron Transfer Mechanism for the Pyrylium Salt Sensitized Photo-oxidation of Leuco Crystal Violet," J.C.S.Chem.Comm., 943-944, 1976.
Kuder, J. E., et al., "Anodic and Photochemical Oxidation of Triphenylmethanes," J.Org.Chem.,44(5), 761-766, 1979. Resolved Investigations of the Mechanism of the Photooxidation of Leucocrystal Violet," J.Prakt.Chem., 326, 6:899-909, 1984.
Nishimura, N., et al., "Mechanism of the Hydride Transfer Reaction of Leuco Crystal Violet with Cyanomethylene Acceptors," J.Phys.Org.Chem., 7, 218-220, 1994.
Rates and Isotope Effects in the Quinone Oxidation of Leuco Triphenylmethane Dyes, Lewis et al., J. Amer. Chem. Soc., vol. 92, 1970, pp. 899-905.
Application of Linear Free Energy Relationships to Some Reactions of Triarylmethane Derivatives, Ritchie et al., J. Amer. Chem. Soc. vol. 84 (12). 1962. pp. 2349-2356.
Kinetics of Hydrogen-Deuterium Exchange in the Methine Chain of Simple Polymethine, Radeglia et al., 1978.
Carbocation Photochemistry. Electron Transfer Mechanism for the Pyrylium Salt Sensitized Photo-Oxidation of Leuco Crystal Violet, Saeva et al., Journal of the Chemical Society, vol. 22, 1976, pp. 943-944.
Hawley's Condensed Chemical Dictionary, Van Nostrand, NY, 1993, p. 357.
Mooney, III William Frank
Patricia Jeffrey J.
Ashton Rosemary
Baxter Janet C.
E. I. Du Pont de Nemours and Company
LandOfFree
Storage-stable photoimageable deutero leuco dye/photooxidation c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Storage-stable photoimageable deutero leuco dye/photooxidation c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Storage-stable photoimageable deutero leuco dye/photooxidation c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1530814