Tellurium imaging composition including improved reductant precursor and method
AssigneeEnergy Conversion Devices, Inc.
InventorsTerry T. Yu, Mei-Rong Yen
Life of this patent
Estimating the term…
Abstract
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y.sub.1 is alkoxy, Y.sub.2 is chloro or alkoxy and Y.sub.3 is hydrogen, chloro or alkoxy. Methods are provided for synthesizing the reductant precursors.
Claims39
A film for forming an image comprising a composition on a substrate, which composition comprises:
- (a) an image forming tellurium compound;
- (b) a reductant precursor which will abstract labile hydrogen from a labile hydrogen source under the influence of imaging energy to become a reducing agent with respect to the image forming tellurium compound, said reductant precursor selected from the group consisting of 3-chloro-2-isopropoxy-1,4-naphthoquinone, 2-isopropoxy-1,4-anthraquinone, 3-chloro-2-isopropoxy-1,4-anthraquinone, 3-chloro-2-(3'-pentoxy)-1,4-naphthoquinone, 3-chloro-2-(2'-butoxy)-1,4-naphtoquinone, 3-chloro-2-(3',3'-dimethyl-2'-butoxy)-1,4-naphtoquinone and 2,3-diisopropoxy-1,4-naphthoquinone;
- (c) a source of labile hydrogen for reaction with said reductant precursor;
- and
- (d) a matrix in which said tellurium compound, reductant precursor and source of labile hydrogen are combined in amounts effective which may be applied to a substrate
A composition responsive to activating energy for forming an imaging film, which composition comprises:
- (a) an image forming tellurium compound;
- (b) a reductant precursor, which will abstract labile hydrogen from a labile hydrogen source under the influence of imaging energy to become a reducing agent with respect to the image forming tellurium compound, said reductant precursor selected from the group consisting of 3-chloro-2-isopropoxy-1,4-naphthoquinone, 2-isopropoxy-1,4-anthraquinone, 3-chloro-2-isopropoxy-1,4-anthraquinone, 3-chloro-2-(3'-pentoxy)-1,4-naphthoquinone, 3-chloro-2-(2'-butoxy)-1,4-naphthoquinone, 3-chloro-2-(3',3'-dimethyl-2'-butoxy)-1,4-naphthoquinone and 2,3-diisopropoxy-1,4-naphthoquinone;
- (c) a source of labile hydrogen for reaction with said reductant precursor;
- and
- (d) a matrix in which said tellurium compound, reductant precursor and source of labile hydrogen are combined in amounts effective which may be applied to a substrate.
A method for recording electromagnetic radiation, comprising imagewise impinging said radiation upon a photosensitive film to produce a change in at least one property thereof, which film is a photosensitive composition carried by a substrate, which composition comprises:
- (a) an image forming tellurium compound;
- (b) a reductant precursor, which will abstract labile hydrogen from a labile hydrogen source under the influence of imaging energy to become a reducing agent with respect to the image forming tellurium compound, said reductant precursor selected from the group consisting of 3-chloro-2-isopropoxy-1,4-naphthoquinone, 2-isopropoxy-1,4-anthraquinone, 3-chloro-2-isopropoxy-1,4-anthraquinone, 3-chloro-2-(3'-pentoxy)-1.4-naphthoquinone, 3-chloro-2-(2'-butoxy)-1,4-naphthoquinone, 3-chloro-2-(3',3'-dimethyl-2'-butoxy)1,4 -naphthoquinone and 2,3-diisopropoxy-1,4-naphthoquinone;
- (c) a source of labile hydrogen for reaction with said reductant precursor;
- and
- (d) a matrix in which said tellurium compound, reductant precursor and source of labile hydrogen are combined in amounts effective which may be applied to a substrate.
Dependencies are inferred from the claim text.