Abstract: A photosensitive composition containing a polymer, and a photosensitive material utilizing the composition are disclosed. The polymer, which may be in the form of a copolymer, includes a repeating unit of the formula (I): ##STR1## wherein Y is a divalent substituent; Z.sub.1 and Z.sub.2 independently each represents monovalent substituents; p and q are each 0 or an integer of 1 to 4; when p and q are each 2 or more, each of Z.sub.1 and Z.sub.2 may be the same or different; X.sup..crclbar. is an anion. The composition has high sensitivity and is capable of forming an image on a suitable photographic support without causing fog under incandescent lamps. The composition can be used to produce lithographic printing plates having high sensitivity as well as excellent ware resistance.

Abstract: A silver halide photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer. The material contains at least one compound selected from the group consisting of a compound represented by the following general formula (I) and a compound represented by the following general formula (II) in at least one layer of the silver halide emulsion layer and other hydrophilic colloid layers thereof; ##STR1## wherein R represents an alkyl group having 1 to 6 carbon atoms which may be substituted, an aryl group having 6 to 11 carbon atoms which may be substituted, or an aralkyl group having 7 to 12 carbon atoms which may be substituted; A represents a .sigma. bond or a divalent connecting group which links R and the nitrogen atom; R.sub.1 and R.sub.2 are independently hydrogen, an alkyl group having 1 to 6 carbon atoms which may be substituted, or an aralkyl group having 7 to 11 carbon atoms which may be substituted, or when A represents a .sigma. bond, R.sub.

Abstract: Static property in a photographic material is effectively prevented by incorporating a specific copolymer formed from, as the copolymerizable components, a betaine-containing polymerizable monomer and a fluorine-containing polymerizable monomer, in the protective layer, backing layer, or an overcoat of the photographic material without exhibiting adverse influences on the photographic properties of the photographic material.

Abstract: The antistatic properties of a photographic light-sensitive member is improved by adding to a surface protective layer a polymer or copolymer having a repeating unit represented by the formula (I) ##STR1## wherein R.sub.1 represents hydrogen or a methyl group, A represents a --COO-- or --CONH-- group, and B represents ##STR2## wherein R.sub.2 and R.sub.3 represent an alkyl group containing from 1 to 6 carbon atoms; R.sub.4 represents hydrogen or a methyl group; R.sub.5 represents an alkyl group containing from 1 to 3 carbon atoms; p is an integer of 2 to 6, q, when R.sub.4 is hydrogen, is an integer of from 1 to 4, and when R.sub.4 is a methyl group, is 1; and D represents a --COO or --SO.sub.3 group.

Abstract: A photographic light-sensitive material containing a copolymer comprising a betaine group-containing monomer and a fluorine atom-containing monomer in at least one photographic layer thereof, whereby the material is improved in the antistatic properties without adversely affecting its photographic properties.

Abstract: A silver halide photographic light-sensitive material is described containing a compound comprising at least one unsaturated group and at least one betaine group in at least one layer thereof.The photographic light-sensitive material has a high sensitivity without being accompanied by an undesirable increase in the formation of fog.

Abstract: A method for dispersing an oil-soluble photographic additive into water or a hydrophilic colloid composition wherein an oil-soluble photographic additive is dispersed in water or a hydrophilic colloid composition in the presence of a polymer having a recurring unit represented by the following formula (I):--(A).sub.x -- --(B).sub.y -- (I)wherein A represents an ethylenically unsaturated monomer containing a sulfonic acid group; B represents a copolymerizable ethylenically unsaturated monomer; x is about 10 to 100 mol%; and y is about 0 to 90 mol%.

Abstract: A photographic photosensitive material which is characterized by at least one surface layer of the photographic photosensitive material containing an organic carboxylic acid amide of the following formula (I) having one or more unsaturated bonds: ##STR1## wherein R.sub.1 represents a hydrocarbon group having 18 to 23 carbon atoms and at least one double bond and each of R.sub.2 and R.sub.3 represents a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms is disclosed.

Abstract: A silver halide photographic material having on a support at least one gelatin-containing layer containing as an antistatic agent a gelatin reactive surface active agent having at least one long chain hydrophobic group, at least one of a hydrophilic group selected from a cationic group, an anionic group, an amphoteric and a nonionic group, and at least one group reactive with gelatin in the molecule.