Abstract: A photographic element formed from a substrate and light sensitive coating on the substrate wherein the coating comprises a mixture of a diazo compound and an aromatic carboxylic coupling agent having phenolic hydroxy groups, in an acidic medium.

Abstract: This invention relates to an improved negative- or positive-working, single sheet color proofing method which can accurately reproduce said images on diverse paper stocks by using a carrier to transfer the processed images to paper receiver bases. The final construction is useful in predicting the image quality from a lithographic printing process.

Abstract: This invention relates to a method for making a dry transfer, photopolymerizable positive-working imaging system which provides a photopolymerizable layer on a support and a colored layer on a substrate. Upon imagewise exposure of the photopolymerizable layer, subsequent lamination of the colored layer to the photopolymerized layer and peel apart, a colored image is produced due to the preferred adhesion of the colored layer to the nonexposed areas of the photopolymerized layer.

Abstract: A process for converting a normally positive working photosensitive composition to a negative working composition. One forms a composition containing an alkali soluble resin, a 1,2 quinone diazide-4-sulfonyl compound and an acid catalyzed crosslinker in a solvent mixture. After drying and imagewise exposing, the composition is baked and developed to produce a negative image.

Abstract: The invention relates to negative photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process.

Abstract: A process for converting a normally positive working photosensitive composition to a negative working composition is disclosed. One forms a composition containing an alkali soluble resin, a 1,2 quinone diazide-4-sulfonyl compound and an acid catalyzed crosslinker in a solvent mixture. After drying and imagewise exposing, the composition is baked and developed to produce a negative image. The image-reversal negative-working photoresists of this invention have superior storage stability and shelf life.

Abstract: This invention relates to a radiation polymerizable composition for use in a photographic element such as a lithographic printing plate comprising in admixture(a) a binder resin having the general formula--A--B--C--wherein a plurality of each of components A, B and C occur in ordered or random sequence in the resin and wherein A is present in said resin at about 5% to about 20% by weight and comprises groups of the formula ##STR1## B is present in said resin at about 4% to about 30% by weight and comprises groups of the formula ##STR2## and C is present in said resin at about 50% to about 91% by weight and comprises acetal groups consisting of groups of the formulae ##STR3## where R is lower alkyl or hydrogen, and wherein said group I is present in component C from about 75% to about 85%, group II is present in component C from about 3% to about 5%; and group III is present in component C from about 10% to about 22%;(b) a photoinitiator; and(c) an acrylic monomer having one or more unsaturated groups.

Abstract: A light-sensitive compound having the formula: ##STR1## wherein R.sub.3 is selected from the group consisting of phenyl and C.sub.1 to C.sub.4 alklyl substituted phenyl.--K-- is selected from the group consisting of ##STR2## --S--, --O--, and --CH.sub.2 --, or is absent; R.sub.1 and R.sub.2 are independently selected from the group consisting of C.sub.1 to C.sub.4 alkyl, methoxy, ethoxy, butoxy, and H;X-- is an anion; andR denotes a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group.

Abstract: This invention relates to water developable, negative working photosensitized sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to predict the image quality from a lithographic printing process. The invention provides both overlay and transfer type proofing sheets which have good fingerprint resistance.

Abstract: A developing and finishing composition for lithographic printing plates containing:a. a mono-, di-, or tri-sodium potassium or lithium phosphate; andb. benzyl alcohol, phenoxyethanol or phenoxypropanol; andc. polyvinyl pyrrolidone, dextrin, poly (methyl vinyl ether/maleic acid) or gum arabic; andd. citric acid or benzoic acid; ande. sodium or potassium octyl sulfate; andf. sodium, potassium or lithium benzoate; andg. sodium, potassium or ammonium citrate; andh. sodium, potassium or ammonium sorbate; andi. sufficient water to formulate an effective developer.

Abstract: This invention relates to positive-working, photopolymerizable containing sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image on conventional paper with an adhesive layer pretreatment. The construction is useful as a peel apart color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.

Abstract: The invention relates to mixed ester photosensitive compounds and photosensitizer compositions comprised thereof. The photosensitive compounds and photosensitizer compositions are prepared by condensing phenolic compounds with a 1,2-naphthoquinonediazide-4-sulfonic acid halide and an organic acid halide in specific ratios. Photoresist compositions comprising the photosensitive compounds and photosensitizer compositions are also disclosed. The photosensitizer compositions exhibit excellent solution stablity and resistance to precipitation when formulated in alkali-soluble resin photoresist compositions. The photoresist compositions have improved shelf life.

Abstract: Disclosed are substituted derivatives of 5-diazobarbituric acid selected from those having the formulas: ##STR1## wherein R.sub.1 and R.sub.2 are substituents selected from the group consisting of C.sub.3 to C.sub.12 alkyl, cyclohexyl, benzyl and C.sub.2 to C.sub.6 aralkyl groups, wherein R.sub.3 and R.sub.4 are substituents selected from the group consisting of C.sub.1 to C.sub.12 alkyl, cyclohexyl, benzyl or other C.sub.2 to C.sub.6 aralkyl groups and R.sub.5 is selected from the group consisting of .alpha.,.omega.-disubstituted C.sub.2 to C.sub.12 alkyl, methylene dicyclohexyl, or C.sub.1 to C.sub.6 dialkylphenylene.These compounds provide DUV response with an absorption maximum near 260 nm. The substituents are chosen to be nonabsorbing alkyl groups that allow efficient photobleaching of the sensitizer during exposure.The sensitizers of the present invention are designed to function in the DUV region and are useful in the manufacture of semi-conductor devices.

Abstract: A photoimaged article having a protected image composed of a colored image on a support; and a thin, transparent, flexible, nonself supporting, protective layer on the surface of the image. The layer is substantially nontacky at room temperature, and has at least a major amount based on the weight of the layer of one or more thermoplastic resins of a vinyl acetal, vinyl chloride, or acrylic polymer or copolymer having a Tg of from about 35.degree. C. to about 110.degree. C. The layer is capable of being adhesively transferred directly to the image when the layer is first applied on the release surface of a temporary support, and the image and protective layer are laminated together under pressure at temperatures of between about 60.degree. C. to about 180.degree. C. with subsequent removal of the temporary support. The side of said layer opposite to the image is free from additional layers. The adhesive layer is one which does no cohesively block at temperatures ofabout 50.degree. or less.

Abstract: A circuit/device that can be designed into new telephone subsets as well as connected to existing telephones to prevent unwanted telephone extensions from interfering with the controlling extension. The device is operated by a single push-button located on certain or all extensions. When operated from a certain extension, it disconnects all other extensions that are fitted with the same device until such time that either the push-button at the controlling extension is operated again or the telephone is placed "on-hook." The present device has a very simple circuit located at each extension telephone and communicates over an unused yellow wire found in standard 4-wire telephone circuits.

Abstract: This invention relates to a radiation polymerizable composition for use in a photographic element such as a lithographic printing plate comprising in admixture(a) a binder resin having the general formula-A-B-C-wherein a plurality of each of components A, B and C occur in ordered or random sequence in the resin and wherein A is present in said resin at about 5% to about 20% by weight and comprises groups of the formula ##STR1## B is present in said resin at about 4% to about 30% by weight and comprises groups of the formula ##STR2## and C is present in said resin at about 50% to about 91% by weight and comprises acetal groups consisting of groups of the formulae ##STR3## where R is lower alkyl or hydrogen, and wherein said group I is present in component C from about 75% to about 85%, group II is present in component C from about 3% to about 5%; and group III is present in component C from about 10% to about 22%;(b) a photoinitiator;(c) a photopolymerizable mixture of(1) a polyethoxylate diacrylate monomer; a

Abstract: This invention relates to positive working photopolymerizable sheet constructions which, upon exposure to an actinic radiation source through a screened image, can accurately reproduce said image. The construction is useful as a color proofing film which can be employed to accurately predict the image quality from a lithographic printing process.

Abstract: The invention relates to new mixed ester photosensitive compounds and photosensitizer compositions comprised thereof. The photosensitive compounds and photosensitizer compositions are prepared by condensing phenolic compounds with a 1,2-naphthoquinonediazide-5-sulfonic acid halide and an organic acid halide in specific ratios. Photoresist compositions comprising the photosensitive compounds and photosensitizer compositions are also disclosed. The photosensitizer compositions exhibit excellent solution stability and resistance to precipitation when formulated in alkali-soluble resin photoresist compositions. The photoresist compositions have enhanced lithographic properties.

Abstract: A liquid crystal display having display filter elements in registration with display electrodes. The filters are produced using color proofing films which are imaged to produce a regular pattern of dots. Filter elements are illuminated by electrodes selection to produce changeable images.

Abstract: A process for forming a multi-level positive working photosensitive element. One forms a composition containing an alkali soluble resin, an o-quinonediazide compound and an in-situ generated acid catalyzed crosslinker in a solvent mixture. After coating on a substrate, drying and partially cross-linking the first layer, a second positive working light sensitive layer is applied. Each light sensitive layer is activated by u.v. radiation in different parts of the spectrum. The top layer is imagewise exposed and developed to form a mask. The second layer is flood exposed through this mask and developed. Each development is conducted with an aqueous alkaline solution.