Dual image formation on separate supports of photocurable composition

Claim 2

The process according to claim 2 wherein the background material is white.

Claim 3

The process according to claim 1 wherein the support film is a member of the group consisting of plastic, glass, and quartz.

Claim 4

The process according to claim 4 wherein the plastic is a member of the group consisting of polyethylene, polypropylene, poly-4-methylpentene, polystyrene, polyethylene terephthalate and cellulose acetate.

Claim 5

The process according to claim 1 wherein the composition contains in addition a member of the group consisting of a plasticizer, a filler, an odor mask, a light scattering agent and an antioxidant in an amount equal to 0.0005 to 500 parts per 100 parts of the composition.

Claim 6

The process according to claim 1 wherein the photosensitizer is a member of the group consisting of benzophenone, acetophenone, acenapthene-quinone, methyl ethyl ketone, valerophenone, hexanophenone, Alpha -phenyl-butyrophenone, p-morpholinopropiophenone, dibenzosuberone, 4-morpholinobenzophenone, 4''-morpholinodeoxybenzoin, p-diacetylbenzene, 4-aminobenzophenone, 4''methoxyacetophenone, benzaldehyde, Alpha -tetralone, 9-acetylphenanthrene, 2-acetylphenanthrene, 1-thioxanthenone, 3-acetylphenanthrene, 3-acetylindole, 9-fluorenone, 1-indanone, 1,3,5-triacetylbenzene, thioxanthen-9-one, xanthrene-9-one, 7-H-benz(de)anthracene-7-one, 1-naphthaldehyde, 4,4''-bis (dimethylamino) benzophenone, fluorene-9-one, 1''-acetonaphthone, 2''-acetonaphthone, 2,3-butanedione, tert.-butyl anthraquinone, benzoin, benzoin methyl ether, and mixtures thereof.

Claim 7

A process for forming two silverless, continuous tone, photographic images from a single photosensitive layer in a camera which comprises forming a photographic film by sandwiching a layer adjusted to a uniform thickness in the range 0.2 to 50 mils of a composition consisting essentially of a uniform mixture of (1) a liquid photosensitive material having a viscosity in the range 0 to 20 million centipoises at 130* C. consisting essentially of 98 to 2 percent by weight of said composition of a polyene containing at least 2 reactive unsaturated carbon to carbon bonds per molecule and 2 to 98 percent by weight of said composition of a polythiol containing at least 2 thiol groups per molecule, the total combined functionality of (a) the reactive unsaturated carbon to carbon bonds per molecule in the polyene and (b) the thiol groups per molecule in the polythiol being greater than 4; (2) 0.0005 to 35 percent by weight of said composition of a photosensitizer and (3) a member of the group consisting of 1 to 25 percent by weight of said composition of a pigment and 0.1 to 25 percent by weight of a dye, between two support films both of which are transparent to actinic radiation, inserting the thus formed photographic film in a camera, exposing said photographic film to actinic radiation reflected from a continuous tone scene onto said composition thereby causing portions of the composition exposed to actinic radiation to form a solidified reverse image relative to said scene on transparent support film proximate the aperture and/or lens system, turning the photographic film over and exposing the other side of said composition to actinic radiation reflected from a continuous tone scene onto said composition thereby causing portions of the composition exposed to actinic radiation to form a solidified reverse image relative to said scene on said other transparent support film, removing said photographic film sandwich from said camera, separating said support films and removing the soluble unexposed portion of the photosensitive composition from both support films thus forming a silverless, continuous tone, photographic image on each support film.

Claim 8

The process according to claim 8 wherein the resultant image is laminated to a substantially non-transparent, contrasting background material to give a continuous tone photographic print.

Claim 9

A process for forming two silverless half tone photographic images from a single photosensitive layer in a camera which comprises forming a photographic film by sandwiching a layer adjusted to a uniform thickness in the range 0.2 to 50 mils of a composition consisting essentially of a uniform mixture of (1) a liquid photosensitive material having a viscosity in the range 0 to 20 million centipoises at 130* C. consisting essentially of 98 to 2 percent by weight of said composition of a polyene containing at least 2 reactive unsaturated carbon to carbon bonds per molecule and 2 to 98 percent by weight of said composition of a polythiol containing at least 2 tHiol groups per molecule, the total combined functionality of (a) the reactive unsaturated carbon to carbon bonds per molecule in the polyene and (b) the thiol groups per molecule in the polythiol being greater than 4; (2) 0.0005 to 33% by weight of said composition of a photosensitizer and (3) a member of the group consisting of 1 to 25 percent by weight of said composition of a pigment and 0.1 to 25 percent by weight of a dye, between two support films both of which support films are transparent to actinic radiation, inserting the thus formed photographic film in a camera, exposing said photographic film through a screen to actinic radiation reflected from a continuous tone scene onto said composition thereby causing portions of the composition exposed to actinic radiation to form a solidified reverse image relative to said scene on said transparent support film proximate the aperture and/or lens system, turning the photographic film over and exposing the other side of said composition through a screen to actinic radiation reflected from a continuous tone scene onto said composition thereby causing portions of the composition exposed to actinic radiation to form a solidified reverse image relative to said scene on said other transparent support film, removing said photographic film sandwich from said camera, separating said support films and removing the soluble unexposed portion of the photosensitive composition from both support films thus forming a silverless, half tone, photographic image on each support film.

Claim 10

The process according to claim 10 wherein the halftone image is used directly or is laminated to a transparent background material to give a half tone transparency.

Claim 11

The process according to claim 10 wherein the half tone image is laminated to a substantially non-transparent, contrasting, background material to give a half tone photographic print.

Claim 12

A process for forming two enlarged, silverless, continuous tone, photographic images from a single layer of photosensitive material which comprises forming a photographic film by sandwiching a layer adjusted to a uniform thickness in the range 2 to 50 mils of a composition consisting essentially of a uniform mixture of (1) a liquid photosensitive material having a viscosity in the range 0 to 20 million centipoises at 130* C. consisting essentially of 98 to 2 percent by weight of said composition of a polyene containing at least 2 reactive unsaturated carbon to carbon bonds per molecule and 2 to 98 percent by weight of said composition of a polythiol containing at least 2 thiol groups per molecule, the total combined functionality of (a) the reactive unsaturated carbon to carbon bonds per molecule in the polyene and (b) the thiol groups per molecule in the polythiol being greater than 4; (2) 0.0005 to 33 percent by weight of said composition of a photosensitizer and (3) a member of the group consisting of 1 to 25 percent by weight of said composition of a pigment and 0.1 to 25 percent by weight of said composition of a dye between two support films both support films being transparent to actinic radiation, projecting the actinic radiation in an enlarger apparatus through an image-bearing transparency mounted in the slide-holder provided, through the lens system onto one surface of said composition for a time sufficient to solidify the portions of said composition exposed to actinic radiation, in like matter exposing the other surface of said composition separating said support films and removing the soluble unexposed portion of the photosensitive composition from both support films thus forming an enlarge, silverless, continuous tone, photographic image on each support film.

Claim 13

The process according to claim 13 wherein the resultant enlarged image is laminated to a substantially non-transparent, contrasting backgrOund material to give a continuous tone photographic print.