Abstract: A photopolymerizable composition comprising (a) a chlorinated polyolefin, (b) a monomer having at least one ethylenically unsaturated bond capable of addition polymerization and (c) a photopolymerization initiator.

Abstract: A process for forming an image comprising image-wise exposing a support having thereon a cinnamoyl group containing light-sensitive polymers containing at least 64 mol % of cinnamoyl groups is disclosed.

Abstract: 2-Arylnaphtho[1,8-bc]furan-5-ones represented by general formula (I): ##STR1## wherein G represents a substituted phenyl group, an unsubstituted or substituted 1-naphthyl group and an unsubstituted or substituted 2-naphthyl group, with the substituents being selected from the group consisting of a straight chain or branched chain alkyl group having 1 to 5 carbon atoms, a straight chain or branched chain alkoxy group having 1 to 3 carbon atoms and a halogen atom; are disclosed as well as photopolymerizable compositions containing at least one of the above compounds as a photopolymerization initiator for addition polymerizable ethylenically unsaturated compounds.

Abstract: A process for intensifying a silver image formed photographically to obtain a non-silver metal image of high optical density comprising treatment with a non-silver physical developer solution containing (1) at least one of an amine borane compound and a borohydride compound, (2) at least one of an amine compound and an ammonium compound, and (3) a compound of a non-silver metal, within a specified temperature range and the non-silver physical developer solution used therein.

Abstract: 1-PHTHALAZINONE AND 1-PHTHALAZINONE DERIVATIVES OF THE FOLLOWING FORMULA: ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group, an aralkyl group, an acyloxyl group, an alkoxyl group, a halogen atom, a nitro group, an amino group or an amido group; and R.sup.2 represents a hydrogen atom, an alkyl group or an aryl group. Such can be prepared at good yields by the reaction of a benzoic acid derivative of the following formula: ##STR2## wherein R.sup.1 has the same meanings as defined above; X represents a halogen atom; and Y represents a hydroxyl group, an alkoxyl group or a halogen atom; with hydrazine or a hydrazine derivative of the following formula:R.sup.2 -- NH -- NH.sub.2 (III)wherein R.sup.2 has the same meanings as defined above.

Abstract: Two components consisting of an organic halogen compound generating halogen containing free-radicals and/or halogen ions due to the action of radiation and a color generator reacting with the thus generated halogen containing free-radicals and/or halogen ions to form a visible image are subjected to dispersion in the form of discrete globules in a hydrophilic binder, and the thus dispersed mixture is applied on a suitable support to thereby obtain a recording material. The entire surface of the thus obtained recording material is heated prior to the action of the radiation forming the visible color image in a dry treatment. The described process is suitable for image formation by negative-positive working photographic procedures.

Abstract: A photosensitizer for electrophotographic photosensitive materials comprising inorganic or organic acid salts of indoline spirobenzopyranes of the formula ##STR1## R.sub.1, R hd 2, R.sub.3, X and Y are defined in the specification.

Abstract: A light-sensitive etching agent comprising (a) a photodecomposable compound forming upon decomposition a material capable of etching a silicon compound containing film or capable of etching the film after reaction with another material, (b) a material capable of forming water upon exposure to light, (c) a binder and (d) a solvent, and a method of making a semiconductor device utilizing the light-sensitive etching agent.

Abstract: Spiro-pyrazoline derivatives of the general formula ##SPC1##Where Z.sub.1, Z.sub.2, R.sub.1 to R.sub.4 are as defined hereinafter and methods for their preparation are disclosed. The compounds are useful as organic photoconductors, organic fluorescent materials and as additives for silver salt and non-silver salt photographic materials.

Abstract: A photo-polymerizable composition comprising (A) a photopolymerization initiator comprising at least one inorganic or organic acid salt of an indolinobenzospiropyran represented by the following general formula (I): ##SPC1##wherein R.sub.1 represents an alkyl group, substituted alkyl group or a phenyl group; R.sub.2 and R.sub.3 each represents an alkyl group or a phenyl group or, when taken together, R.sub.2 and R.sub.3 form a methylene chain CH.sub.2 wherein n is an integer of 4 or 5; X represents a hydrogen atom, a nitro group, a halogen atom, a carboxy group; and Y represents one or more substituents selected from the group consisting of a hydrogen atom, a nitro group, a halogen atom, a formyl group and an alkoxy group, and (B) at least one cationically polymerizable substance.

Abstract: An information display method comprising forming an image of a chemiluminescent component on a support according to information to be recorded and placing the support bearing the image of the material in an atmosphere capable of effecting the chemiluminescence of the material to thereby display the image based on a difference in luminance.

Abstract: An electrophotographic member comprising a resin binder and an organic photoconductive composition and a process using the electrophotographic member, the composition consisting essentially of a compound of the formula (A), its dimeric compound or its polymeric compound: ##SPC1##Whereim R.sub.1 is hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, alkoxycarbonyl group having alkyl group 1 to 4 carbon atoms, nitro group, alkylene group having 1 to 3 carbon atoms which is capable of forming a bis-compound, or a bond which is capable of forming a bis-compound, R.sub.