Abstract: A photosensitive material of the diazonium type which comprises a support, a precoat layer thereon and a photosensitive layer of a diazonium compound is improved by using a graft copolymer on a cellulose derivative as the precoat layer. A hydrophilic epoxy compound may be used in the precoat layer and a coupler and a benzenediazonium hexafluorophosphate derivative may be used in the photosensitive layer.

Abstract: Improved heat developable silver films are produced upon coating and drying a binder composition containing (a) a substantially light-insensitive silver sulfinate, (b) a silver halide photocatalyst, and (c) a developer. A preferred film contains (a) silver hexadecylsulfinate, (b) a separately sensitized silver halide emulsion and (c) a Phenidone or Dimezone moiety in a coalesced latex binder.

Abstract: A material for a planographic plate includes a thin layer of a water-resistant adhesive on a substrate and finely divided particles adhered to the adhesive. The method includes applying the finely divided particles to the adhesive in a manner such that the ratio of the thickness of the adhesive layer to the average diameter of the finely divided particles is in the range of from 0.2 to 0.4.

Abstract: Bilayer photosensitive imaging articles comprising a substrate coated with an image layer and a resist layer are disclosed. The substrate may be transparent, translucent or opaque to give imaging articles useful in different applications. The image layer which should be from about 0.3-3.0 microns in thickness includes an organic film-forming vehicle from the group of copolymers of the formula: ##STR1## where P is styrene, ethylene or methyl vinyl ether; m is 1-3; n is 1,10; X is OH, OHN.sub.2, ONH.sub.4, OR, ONH.sub.3 R, ONH.sub.2 R.sub.2, ONHR.sub.3, ONH.sub.3 RNH.sub.2, ONa, OK, OLi; R is an alkyl group in the range C.sub.1 -C.sub.10 optionally including a functional group such as ketone, alcohol, esther, ether alcohol or aryl; m=1-3, n=1-10; and the molecular weight is between 1,000-150,000. The image layer may also include a coloring medium. The resist layer, which should be from about 0.5 to about 2.

Abstract: A thermal recording element comprising a support having formed thereon a recording layer, a first protective layer comprising an organic high molecular weight material having a softening point below about 70.degree. C. formed on the recording layer, and a second protective layer comprising an organic high molecular weight material having high mechanical strength.

Abstract: An aqueous coating composition comprises (a) a hydrophilic binder; (b) an ester of cellulose having at least 8 acyl groups per C.sub.24 cellulose unit wherein at least a majority of the acyl groups are derived from an aliphatic polycarboxylic acid having from 3 to 6 carbon atoms; or a salt of the ester; and (c) a hardening agent in an amount sufficient to render the composition water-insoluble after coating and drying of the composition. This coating composition is useful for forming water-insoluble, conductive and highly-adherent layers in composite bases or elements, and particularly in photographic elements having hydrophobic supports. The conductive layers can be used, for example, as conducive subbing layers or conductive pelloid layers.

Abstract: An optical information recording medium capable of recording optical information thereon by application of high density energy beams thereto, the recorded information being thereafter reproducible therefrom, comprising a base and a recording layer formed on the base, the recording layer comprising a fluorine phthalocyanine of the following formula and capable of absorbing light with a wavelength of 700 nm or more: ##STR1## where M represents a member selected from the group consisting of hydrogen, a metal, a metal oxide and a metal halide, X represents fluorine; and n is an integer from 1 to 16.

Abstract: The addition of a class of compounds to a photothermographic emulsion reduces latent image fade.

Abstract: A method is disclosed for preparing an oleophilic drafting film and related light-sensitive reprographic member. An aqueous drafting composition is disclosed which is both compatible with hydrophobic material and diazo light-sensitive compositions which provides for an expedient method of fabricating drafting film. The drafting composition comprises an acrylic resin emulsion containing an aziridine hardening agent.

Abstract: A photographic element is described which is provided with a subbing layer comprising (1) a copolymer of a diolefin monomer and at least one vinyl monomer, and (2) a dichloro-2-triazine derivative.

Abstract: Radiation-curable compositions useful for restorative and/or protective treatment of photographic elements are comprised of a polymerizable epoxy compound, a cationic initiator for initiating polymerization of the epoxy compound, a polymerizable acrylic compound, a haloalkylated aromatic ketone which serves as a free-radical initiator for initiating polymerization of the acrylic compound, and a polymerizable organofunctional silane. Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element, and serves to protect it from abrasion and scratches, by coating the element with the radiation-curable composition and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer.

Abstract: The present invention relates to an improved photographic polyester support base coated with a first hydrophobic subbing layer and a second hydrophilic subbing layer, the improvement consisting of having said second subbing layer derived from a hardener containing, aqueous coating composition including (1) gelatin, (2) a vinyl addition polymer compound and (3) a low viscosity highly sulfonated water soluble polyacetal compound derived from the reaction of an aldehyde sulfonic acid compound with a polyvinyl alcohol compound, the relative quantities of said gelatin and vinyl addition polymer compound to the polyacetal compound being such as to provide good adhesion characteristics without any significant loss in antistatic properties.

Abstract: A color imaging device which comprises an adhesive layer between (a) means for sensing radiation comprising a planar array of charge-handling semiconductive photosensors, and (b) superimposed filter means for controlling access of radiation to the sensing means comprising a transparent polymer layer capable of receiving dyes such as heat transferable dyes; the adhesive layer comprising a polyester selected from the group consisting of (1) polyesters having recurring carboxylate units of which at least 80 mole percent are terephthalate units, and recurring alkylene units derived from glycols of which at least 40 mole percent are ether alkylene units, with the proviso that either (a) the recurring alkylene units comprise at least 60 mole percent ether alkylene units or (b) either the recurring carboxylate units comprise at least 2 mole percent pyromellitic tetracarboxylate units or at least 10 mole percent of linear aliphatic dicarboxylate units having at least 8 carbon atoms, and that when at least 10 mole per

Abstract: A drafting film comprising a hydrophobic support and a matte layer formed thereon, said matte layer comprising silicon dioxide as a matting agent and a mixture of polymethyl methacrylate or a copolymer thereof and nitrocellulose. The drafting film show excellent adaptability for writing or drawing and revising or erasing.A wash-off type photographic film is also provided by forming a wash-off silver halide photosensitive emulsion layer on the drafting film.

Abstract: A coated film base suitable for coating with a light-sensitive photographic emulsion film comprises a self-supporting film of a synthetic linear polyester and a continuous subbing layer applied to at least one surface of said self-supporting film comprising a water-insoluble copolymer of (a) a comonomer selected from acrylic acid, methacrylic acid or a derivative of acrylic acid or methacrylic acid and (b) a copolymerizable sulphonated ethylenically unsaturated comonomer having the general structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, halogen, alkyl, nitrile, amide, amine, ketone, ether or vinyl;R.sub.

Abstract: A multi-layer light-sensitive photographic material comprising a support and a light-sensitive layer, which have a surface layer which does not adhere even under a high temperature and high humidity conditions when the front surface layer thereof is contacted with the other surface layer and which is hardly subject to scratching and free from the so-called "blooming" phenomenon.The light-sensitive material according to this invention comprises, in at least one of the front and back sides thereof, at least one light-insensitive layer containing a high polymer having at least 20% by weight of a repeating unit represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group, and R.sup.2 represents a straight chain alkyl group having 12 to 24 carbon atoms.

Abstract: For the production of positive photographic prints a composite material in strip form is used as an intermediary to form the print images and is then adhered in a continuous procedure to a main support strip such as paper. The resultant strip is then cut to separate the individual prints. The composite material has a transparent film of biaxially-oriented plastics film not more than 50.mu. thick and water-resistant and to which photosensitive emulsions are applied, and a further layer overlying the emulsions to protect them, the further layer being adhered to the main support. This layer is reflective, as by incorporation of a white pigment, so that the image is seen through the transparent film against the background of this layer rather than the main support. The reflective layer may contain other chemicals relevant to processing.

Abstract: A coated film base suitable for coating with a light-sensitive photographic emulsion layer comprises a self-supporting film of a synthetic linear polyester and a continuous subbing layer applied to at least one surface of said self-supporting film comprising a water-insoluble copolymer of (a) styrene or a derivative of styrene, (b) a comonomer selected from acrylic acid, methacrylic acid or a derivative of acrylic acid or methacrylic acid and (c) a copolymerizable sulphonated ethylenically unsaturated comonomer having the general structure: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent hydrogen, halogen, alkyl, nitrile, amide, amine, ketone, ethyl or vinyl;R.sub.

Abstract: Radiation-curable compositions useful for restorative and/or protective treatment of photographic elements are comprised of an acrylated urethane, an aliphatic ethylenically-unsaturated carboxylic acid, a multifunctional acrylate, and a siloxy-containing polycarbinol. Photographic elements, such as still films, motion picture films, paper prints, microfiche, and the like, are provided with a protective overcoat layer which is permanently bonded to the element, and serves to protect it from abrasion and scratches, by coating the element with the radiation-curable composition and irradiating the coating to bond it to the element and cure it to form a transparent, flexible, scratch-resistant, cross-linked polymeric layer. The protective overcoat layer can be applied to the image-bearing side of the element or to the support side of the element or to both sides.

Abstract: Improvements in coated film bases. Photobase comprising a film support, e.g. a polyethylene terephthalate film, having a copolymeric subbing layer comprising a copolymer of acrylic acid or an alkyl ester thereof/methacrylic acid or an alkyl ester thereof/itaconic acid or itaconic anhydride, e.g. an ethyl acrylate/methyl methacrylate/itaconic acid copolymer, and containing free itaconic acid, half ester or anhydride which is directly adherent to light-sensitive photographic emulsions.

Abstract: Light-sensitive photographic films are produced by coating polyester films with aqueous dispersions of polyesters or copolyesters containing free-functional acid groups. Corona discharge treatment of the polyester or copolyester layers is disclosed for direct adhesion to photographic emulsions or indirect adhesion via a polymeric sub and/or gelatin sub.

Abstract: A polyester film coated with an antistatic coating is provided. The film includes a polyester film support coated on at least one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a concentration in the range of between about 2.75 percent and 3.25 percent by weight, based on the total weight of the latex coating. The coating further includes a cross-linkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed.

Abstract: A polyester film coated with a slip composition is provided. The film includes a polyester film support coated on at least one side with a latex coating. The coating includes stearamidopropyldimethyl-.beta.-hydroxy-ethylammonium nitrate present in a coating weight in the range of up to 0.003 pounds per thousand square feet of biaxially oriented polyester film. The coating further includes a cross-linkable methylmethacrylate-ethylacrylate-methacrylamide terpolymer having a glass transition temperature in the range of between about 40.degree. C. and 50.degree. C. The terpolymer is present in a concentration in the range of between about 0.75 percent and 1.25 percent by weight, based on the total weight of the latex coating. The weight ratio of the nitrate to the terpolymer ranges between about 2.75:1 to below 3:1.A process for forming the above film is also disclosed. In this process a latex coating of the composition described above is coated onto a uniaxially drawn polyester film support.

Abstract: Photographic silverhalide containing materials having improved mechanical and electrostatic properties are obtained by adding to at least one of the layers of the material a cross-linked polymer of acrylic acid and/or methacrylic acid which is prepared either (a) by inverse emulsion polymerization of acrylic and/or methacrylic acid monomers in the presence of polyfunctional cross-linking monomers and an emulsifier and breaking of the emulsion and redispersion of the polymer particles in water; or (3) by emulsion polymerization of aliphatic esters of acrylic and/or methacrylic acid in water in the presence of polyfunctional cross-linking monomers and of an emulsifier, followed by saponification of the polymer.

Abstract: Photographic elements, two-sheet diffusion transfer assemblages containing such elements, and dye image-receiving elements are described. The photographic element comprises a support, a neutralizing layer, a timing layer, a vinylidene chloride polymeric layer, a polymeric primer layer, and at least one silver halide emulsion layer having a dye image-providing material associated therewith. The vinylidene chloride polymeric layer and the polymeric primer layer prevent unwanted transfer of portions of the emulsion layer to a receiver when the receiver and photographic element are peeled apart. The polymeric primer layer can be either a particular ionic vinyl polymer or a particular ionic polyester.

Abstract: Two-sheet diffusion transfer assemblages and photographic elements are described which contain a primer layer located between a polymeric acid layer and a timing layer. The primer layer prevents unwanted transfer of portions of the emulsion layer to the receiver when the receiver and photographic element are peeled apart. The primer layer comprises:(a) a mixture of gelatin and cellulose nitrate, or(b) a mixture of an acrylic acid copolymer and a particular acrylic acid terpolymer, or(c) an acrylic acid copolymer as described herein.

Abstract: Adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester substrate is achieved by providing the substrate with a surface layer containing free carboxy groups and incorporating in the emulsion a cross-linking agent which can cross-link the emulsion and the carboxy containing surface layer. Carbodiimides are a class of cross-linking agents having this capability.

Abstract: Film base material is provided which comprises a film of biaxially oriented synthetic linear polyester of highly hydrophobic character having superimposed thereon adherent to said film a subbing layer obtained from an aqueous latex of a copolymer which has been prepared by copolymerizing vinylidene chloride, an alkyl acrylate or methacrylate and optionally a copolymerizable acid and/or at least one allyl, methallyl or vinyl monomer which contains either an active halogen group or an active methylene group in the presence of a mixture of (a) an anionic surfactant which is either an alkyl aryl polyether sulphate, sulphonate or phosphate and (b) a nonionic surfactant which is an alkyl aryl polyalkylene oxide adduct containing at least some units derived from propylene oxide.The subbing layer improves the adhesion between the film support and the photographic emulsion layers and prevents the separation or frilling of the layers when the final photographic film is processed.

Abstract: A vesicular photographic material comprising a polymeric matrix containing a sensitizer which liberates gas when exposed to light, and a process for manufacture of said material. The polymeric matrix comprises a blend of polymethacrylonitrile homopolymer with another resin selected from the group consisting of vinyl polymers and copolymers; epoxy polymers; and copolymers with polyurethane segments. Improved photometrics, particularly film speed, are realized.

Abstract: A thermally developable light-sensitive element comprising a support having in one or more layers thereon at least (a0) an organic silver salt, (b) light-sensitive silver halide grains and (c) a reducing agent, wherein the average grain size of the light-sensitive silver halide grains is not less than about 0.05 .mu. and the support is gas permeable and, in addition, carries thereon a subbing layer composed of at least one copolymer selected from the group consisting of a vinyl chloride type copolymer in which vinyl chloride is present in the copolymer in an amount of about 50 molar % or higher and a vinylidene chloride type copolymer in which vinylidine chloride is present in the copolymer in an amount of about 50 molar % or higher. The thermally-developable light-sensitive element of the invention is highly sensitive and in addition, has a good storage stability retaining on storage the properties possessed by the "fresh" photosensitive element even under high humidity and/or high temperature conditions.

Abstract: A process for forming a subbing layer in photographic sensitive materials which comprises applying an aqueous dispersion of a copolymer consisting of at least one diolefin monomer and one or more vinyl monomers to a plastic film base in which the gel fraction of the copolymer in said aqueous dispersion is about 80% by weight or less.

Abstract: A photographic support of a composite polyester film in which additives and oligomers can be incorporated in the support without exerting any undesirable effects upon photographic characteristics, which film is constructed by an inner layer of polyester containing volatile diffusible substances or exudative substances, and a covering layer of another sort of polyester, with which both sides of the inner layer are covered, not containing the above-described substances judging from practical viewpoint and that, having a glass transition point equal to or higher than that of the inner layer, and which film is orientated along at least one prescribed axis.

Abstract: Light-sensitive photographic films are produced by coating polyester films with aqueous dispersions of polyesters or copolyesters containing free-functional acid groups. Corona discharge treatment of the polyester or copolyester layers is disclosed for direct adhesion to photographic emulsions or indirect adhesion via a polymeric sub and/or gelatin sub.

Abstract: Film base material is provided which comprises a film of biaxially oriented synthetic linear polyester of highly hydrophobic character having superimposed thereon adherent to said film a subbing layer obtained from an aqueous latex of a copolymer which has been prepared by copolymerizing vinylidene chloride, an alkyl acrylate or methacrylate and optionally a copolymerizable acid and/or at least one allyl, methallyl or vinyl monomer which contains either an active halogen group or an active methylene group in the presence of a mixture of (a) an anionic surfactant which is either an alkyl aryl polyether sulphate, sulphonate or phosphate and (b) a nonionic surfactant which is an alkyl aryl polyalkylene oxide adduct containing at least some units derived from propylene oxide.The subbing layer improves the adhesion between the film support and the photographic emulsion layers and prevents the separation or frilling of the layers when the final photographic film is processed.

Abstract: Provided is a method of preparing film base material consisting of biaxially oriented synthetic linear polyester which comprises stretching extruded synthetic polyester material in one direction and then coating on this material a copolymer in form of an aqueous latex of vinylidene chloride, a plasticising comonomer for the vinylidene chloride and optionally other comonomers together with 10 to 40 percent by weight of solids in the latex of at least one phosphoric acid derivative of the formula ##STR1## wherein M is hydrogen, ammonium or an alkali metal, R is methyl, ethyl or an ethylene oxide and/or propylene oxide units containing group, and R.sub.1 is hydrogen, methyl or ethyl, drying this coating and completing the orientation of the polyester film material.A photographic silver halide emulsion can be coated directly on this base without the need to apply any intermediate gelatin subbing layer.

Abstract: An antistatic composition for photographic films which can withstand wet processing is formed by reacting (1) a hydrophobic polymer containing carboxyl groups, (2) a water-soluble copolymer of the sodium salt of styrene sulfonic acid and a carboxyl-containing monomer and (3) carboxylic groups on the film surface to be protected, with (4) a water-soluble polyfunctional aziridine crosslinking agent.