Abstract: A photographic material comprising (I) a styrene-based polymer support having thereon a subbing layer which comprises a partial or complete reaction product of (a) a copolymer of styrene or vinyl acetate with maleic anhydride with (b) water or a hydroxy compound such as alcohol and (II) a photographic layer comprising a hydrophilic resin binder bearing on the subbing layer, wherein a compound containing two or more epoxy groups per molecule is contained in the subbing layer or in both of the subbing layer and the photographic layer.

Abstract: A method of subbing plastic films, particularly for use in photography, comprising applying an aqueous subbing composition to a surface thereof, the aqueous subbing composition comprising a polymer prepared from 45 to 99.5% by weight of at least one monomer selected from the group consisting of vinylidene chloride and vinyl chloride; 0.1 to 15% by weight of at least one monomer selected from vinyl monomers having one or more alcohol groups in their side chains; and 0 to 54.4% by weight of at least one monomer selected from the group consisting of acrylates, methacrylates, acrylonitrile, methacrylonitrile, alkyl vinyl esters, and alkyl vinyl ethers.

Abstract: A silver halide photographic light-sensitive material comprising a hydrophilic organic colloid layer containing a photographic additive dispersed therein using as a solvent a benzoic acid ester which has a boiling point of greater than 250.degree. C at atmospheric pressure, which is soluble in water in a proportion of less than about 10% by weight, and which dissolves water in a proportion of less than about 5% by weight. The benzoic acid ester does not have any harmful influence on the human body and does not cause environmental pollution.

Abstract: A recording sheet comprising a support and a developer layer, which develops color images on reacting with a color former, on the support containing a dimer of the compound represented by the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group, and n is 1 to 4.

Abstract: Water-soluble oxidation-reduction polymers containing therein recurring units of the formula (I): ##STR1## or recurring units of formula (II): ##STR2## wherein X represents a hydrogen atom, a halogen atom, an alkyl group, an allyl group or an aryl group; R.sub.1 represents a hydrogen atom or an alkyl group; R.sub.2 represents a hydrogen atom, an alkyl group or an aryl group; R.sub.3 represents a divalent group; and M represents a cation. These polymers have excellent oxidation-reduction properties.

Abstract: A photographic light-sensitive material including a support, a non-light sensitive uppermost layer consisting of at least one organic synthetic high polymer compound as a film forming material and at least one light-sensitive layer between the support and the uppermost layer, said organic high polymer compound being selected from the group consisting of the following polymers (A) to (F):polymer (A) comprising repeating units a.sub.1 and a.sub.2 ;______________________________________ a.sub.1 : ##STR1## 80 - 97 mol% a.sub.2 : ##STR2## 3 - 20 mol% ______________________________________Wherein M represents a cation, and m represents 0, 3 or 4;Polymer (B) comprising repeating units b.sub.1, b.sub.2 and b.sub.3 ; ______________________________________ b.sub.1 : ##STR3## 5 - 30 mol% b.sub.2 : ##STR4## 5 - 75 mol% b.sub.3 : ##STR5## 20 - 65 mol% ______________________________________Wherein R.sub.1 and R.sub.2 each represents --CH.sub.3 or --C.sub.2 H.sub.5, R.sub.3 and R.sub.5 each represents --H or --CH.sub.

Abstract: A polyester based adhesive comprising the reaction product of (a) an aromatic dicarboxylic acid and (b) a glycol component comprising (i) a mixture of ethylene glycol and at least one glycol selected from the glycols represented by the following formula (I), or (ii) a mixture of ethylene glycol, triethylene glycol, and at least one glycol selected from the glycols represented by the following formula (I): ##EQU1## wherein R.sub.1 and R.sub.3 each represents a hydrogen atom or a methyl group; R.sub.2 is (CH.sub.2 CH.sub.2 CH.sub.2).sub.x (CH.sub.2).sub.y, --CH.sub.2 --C(CH.sub.3).sub.2 --CH.sub.2 --, --CH.sub.2 (C.sub.6 H.sub.10)CH.sub.2 --, ##EQU2## --C.sub.6 H.sub.4 --, --C.sub.10 H.sub.6 --, --C.sub.6 H.sub.4 --O--C.sub.6 H.sub.4 --, (CH.sub.2 CH.sub.2 O).sub.x CH.sub.2 CH.sub.2, --C.sub.6 H.sub.4 --C.sub.6 H.sub.4 --, --CH.sub.2 C.sub.6 H.sub.4 CH.sub.2 --, --C.sub.6 H.sub.4 --SO.sub.2 --C.sub.6 H.sub.4 --, or --C.sub.6 H.sub.4 CH=CH--C.sub.6 H.sub.

Abstract: Liquid developer compositions for use in developing a recording surface bearing an electrostatic latent image comprising finely divided colored marking particles substantially homogeneously dispersed in a carrier liquid, the colored marking particles comprising pigment particles substantially completely covered with a positive charge adjusting agent comprising a polymer of alkyl methacrylate-styrene-vinyltriethoxysilane. Imaging processes employing said liquid developer compositions are also disclosed.

Abstract: A photographic emulsion containing a novel amphoteric copolymer which comprises:A. 0.5 to 30 mole % of cation-site containing repeating units of the formula (I) ##EQU1## wherein R.sub.1 represents a hydrogen atom or a methyl group and n is 1, 2, 3 or 4;B. 0.5 to 30 mole % of anion-site containing repeating units of the formula (II) ##EQU2## wherein R.sub.2 represents a hydrogen atom or a methyl group, and X represents ##SPC1##--COOM, --SO.sub.3 M or --COO(CH.sub.2).sub.m SO.sub.3 M, where M is a cation and m is 3 or 4; andC. the balance of repeating units of the formula (III) ##EQU3## wherein R.sub.3 represents a hydrogen atom or a methyl group, R.sub.4 and R.sub.5 each represents a hydrogen atom or a lower alkyl group or a substituted alkyl group thereof. The novel amphoteric copolymer can be substituted partly or entirely for the gelatin in a photographic emulsion, with excellent photographic effects.