Abstract: The invention is directed to polymeric materials which undergo deformation upon exposure to actinic radiation. These polymeric materials contain at least one photoionizable group attached to a polymer backbone structure. Typically, photoionizable groups can include N,N-dimethyl-p-phenylenediamine, tetrathiafulvalene, tetraselenafulvalene, ferrocene, tetrathiatetracene and leuco dyes such as leuco methyl violet. Polymer backbone structures which can be used can be chosen from polyacrylics, polyglutamate, polyvinyl amine, polyvinyl alcohol, polystyrene and the like.Films of these materials when exposed to actinic radiation display deformations with dilations of about 35% in each dimension. They are useful for forming relief images for printing, three dimensional photography, photocopy, holographic information storage, information storage and actinometry.

Abstract: This invention relates to the production of information carriers on which the information is recorded along a track; the process of making the information carrier comprises a first step of materializing the track itself before recording any information by forming a groove in an auxiliary layer, the track thus being capable of being optically detected, and a second step of recording the information in a photosensitive layer in contact with the auxiliary layer along the track previously formed.

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: An original of an information carrier, and a process of making the carrier is disclosed in which the carrier comprises a layer of carrier material to which a layer of recording material has been applied, which recording layer contains a relief image reproducing the information. The relief image is comprised of a plurality of part-images in one plane, adjoining one another without overlapping, and having superimposed thereon a relief grid of different depths in the areas of the individual relief part-images. At least four relief part-images are utilized corresponding to the projection colors yellow, red, blue-violet and green.

Abstract: A process for producing a relief original information carrier is disclosed comprising the steps of exposing a recording layer mounted on a carrier to a grating pattern, image-wise exposing the recording layer through at least one of individual color separation originals to form relief part-images and developing the exposed recording layer. The grating pattern exposure is made for a time sufficient to provide, upon subsequent development, a uniform relief depth corresponding to a certain predetermined color. The subsequent image-wise exposure is made utilizing individual color separation originals which are transparent in the areas of the particular projection colors of the individual color separation originals and which form relief part-images of the projection color which adjoin one another without overlap.

Abstract: A photographic material for the production of an image in a dry process by forming a vesicle image upon the decomposition of a peroxide compound at image nuclei of silver by providing a layer containing a silver salt which forms upon exposure to light, in imagewise distribution, image nuclei. The silver salt has a grain size of less than 0.3 .mu.m and is present in the layer in an amount of from 1-500 mg/m.sup.2.

Abstract: This invention relates to the production of information carriers on which the information is recorded along a track; the process of making the information carrier comprises a first step of materializing the track itself before recording any information by forming a groove in an auxiliary layer, the track thus being capable of being optically detected, and a second step of recording the information in a photosensitive layer in contact with the auxiliary layer along the track previously formed.

Abstract: An image recording material formed with a support, a photosensitive composition layer formed on the support, and a mono-particle layer of solid particles of different optical transmittances formed on the photosensitive composition layer. When the recording material is exposed to light, the firmness with which the photosensitive composition holds the solid particles varies locally from point to point in accordance with the exposure energies of light passed through the solid particles. Thus by causing the dissolving force of the solvent or other physical forces to act on the photosensitive composition, the particles held weakly are selectively removed from the recording material, whereby an image is formed by the particles left on the recording material. The recording material on which the image has been formed can be used as a printing form as it is or by being subjected to simple after-treatment.

Abstract: The invention is directed to polymeric materials which undergo deformation upon exposure to actinic radiation. These polymeric materials contain at least one photoionizable group attached to a polymer backbone structure. Typically, photoionizable groups can include N,N-dimethyl-p-phenylenediamine, tetrathiafulvalene, tetraselenafulvalene, ferrocene, tetrathiatetracene and leuco dyes such as leuco methyl violet. Polymer backbone structures which can be used can be chosen from polyacrylics, polyglutamate, polyvinyl amine, polyvinyl alcohol, polystyrene and the like.Films of these materials when exposed to actinic radiation display deformations with dilations of about 35% in each dimension. They are useful for forming relief images for printing, three dimensional photography, photocopy, holographic information storage, information storage and actinometry.

Abstract: A photohardenable element useful, for example, in color proofing and the like, additionally containing a protective top-coat comprised of tacky material, e.g. a layer containing unexposed photohardenable monomer and plasticizer, said top-coat being dusted with a powdered material capable of rendering the layer non-tacky and suitable for further handling. The powdered material additionally gives the surface of the element a matte finish.

Abstract: A method of manufacturing a decorative panel having an embossed surface and different degrees of glass corresponding to a pattern, thereby producing a stereoscopic aspect, i.e., the impression of relief and solidity.

Abstract: Vesicular recording materials incorporate a sensitized layer comprising, as vehicle for the sensitizing agent, a quaternized polyelectrolyte, e.g. preferably polymers of dimethylamino ethyl methacrylate. The water sensitivity of the preferred polymers is reduced by copolymerisation with insolubilizing comonomers such as itaconic acid.

Abstract: Vesicular recording materials include a sensitized layer which comprises a polymeric vehicle for the sensitizing agent which is a copolymer of 62 to 95 mole % of acrylonitrile or a derivative thereof with acrylamide or a derivative thereof. Preferred copolymers are derived from acrylonitrile and N-tert.butyl acrylamide or diacetone acrylamide. The sensitized layers may contain a surfactant and may be subjected to water treatment.

Abstract: A latent-imaging photopolymer system for recording thick refractive index patterns is disclosed. The system utilizes a porous matrix which has been sensitized by chemisorption of a photosensitive polymerization initiator. The sensitized matrix is exposed to light in the desired pattern. This light destroys initiator to impress the pattern. Then the pores are filled with a monomer composition. Finally the entire filled matrix is irradiated to induce polymerization initiation by the sensitizer remaining after the initial exposure. Polymerization produces locally induced refractive index gradients corresponding to the pattern of the light in the initial exposure step.

Abstract: A latent-imaging photopolymer system for recording thick refractive index patterns is disclosed. The system utilizes a porous matrix which has been sensitized by chemisorption of a photosensitive polymerization initiator. The sensitized matrix is exposed to light in the desired pattern. This light destroys initiator to impress the pattern. Then the pores are filled with a monomer composition. Finally the entire filled matrix is irradiated to induce polymerization initiation by the sensitizer remaining after the initial exposure. Polymerization produces locally induced refractive index gradients corresponding to the pattern of the light in the initial exposure step.

Abstract: Light-sensitive vesicular imaging materials, suitable for the production of colored labels, etc., comprise a light-sensitive vesicular imaging layer applied to one surface of a transparent self-supporting plastics sheet or film such as a linear polyester, e.g. polyethylene terephthalate film, said light-sensitive vesicular imaging layer comprising a polymeric vehicle having uniformly dispersed therein a sensitizing agent which releases a vesicle-forming gas, preferably nitrogen, upon exposure to light and optionally including a pigment or dye, said polymeric vehicle comprising a thermoplastic polymer having a nitrogen permeability constant in the range 1.times.10.sup.-15 to 1.times.10.sup.

Abstract: Vesicular recording materials are described which include a sensitized layer comprising a polyeric vehicle for the sensitizing agent which is an acrylonitrile/substituted or unsubstituted styrene copolymer with at least 55 mole % of acrylonitrile and preferably less than 85 mole %. The copolymer is usually homogeneous and preferably derived from acrylonitrile and the styrene comonomer along and most preferably contains from 65 to 82 mole % of acrylonitrile. The copolymer is softenable on heating to permit the gas released by the sensitizing agent in the light struck areas to form light-scattering or reflecting vesicles therein.A surfactant in an amount of at least 1% by weight, based on the weight of the copolymer, is essential to vesiculation and anionic surfactants are especially effective in providing a wide tonal range and good speed rating, amounts up to 20% by weight being preferred.