Abstract: Certain organic, carbon acid silver halide complexing agents in a photographic diffusion transfer system provide suitable replacement for conventional silver halide complexing agents. Such organic, silver halide complexing agents include certain sulfones, nitriles and onium salts. These are especially useful in a silver salt diffusion transfer system. They can be employed with silver halide developing agents, such as in a monobath, and are especially suitable with a hydroxylamine silver halide developing agent. Other addenda commonly employed in photographic diffusion transfer systems can be employed in combination with these silver halide complexing agents.

Abstract: A radiation-sensitive element in which silver halide is the sole source of image-forming silver containing incorporated processing chemicals is processed in a fluid activator which does not cause the processed element to be tacky. The element includes a fluid-impermeable support having thereon a radiation-sensitive material in a hydrophobic binder which is impermeable to water. Activation of the exposed radiation-sensitive material by the fluid activating agent results in a processed element which is dry to the touch and is substantially free from tackiness when removed from contact with the fluid activator. If a stabilizer precursor is incorporated in the element, the image is unaffected by further exposure to radiation.

Abstract: A radiation-sensitive element comprises a support having thereon a composition comprising a depolymerizable polymer, such as a polymer of an aromatic 1,2-dialdehyde, and may also contain a radiation-sensitive substance or combination of substances, binder and/or a color-forming substance or combination of substances.A negative-working radiation-sensitive process comprises exposing a radiation-sensitive element to radiation, following which the element is heated in order to accelerate the depolymerization reaction. A visible image can be formed during heating by the reaction of the released monomer, such as an aromatic 1,2-dialdehyde, with a color-forming substance included in the element or contained in a separate element, or by heat treatment in the presence of a gaseous color-forming reagent.

Abstract: Compositions are provided comprising a film-forming crystalline polypropylene, crystalline block copolymer of propylene and at least one other .alpha.-monoolefin selected from the group of ethylene and .alpha.-monoolefin hydrocarbons of 4 to 10 carbon atoms or mixtures of the block copolymer and the polypropylene, having incorporated therein about 15 to 40% by weight talc, 5 to 15% by weight titanium dioxide pigment, 5 to 20% of an elastomer and one-tenth to 1% by weight of a polyolefin antioxidant.The films or sheets prepared from these polyolefin compositions have the stiffness, opacity and printability normally associated with paper and provide excellent replacements for paper used in photographic elements. In addition, they have excellent tear strength and elongation.

Abstract: A method of providing a printing plate comprises coating on a support a layer having a hydrophilic surface comprising the homogeneous reaction product of hydrolyzed polyvinyl acetate and hydrolyzed tetraethyl orthosilicate. The coating may also contain pigments such as titanium dioxide and the like. A printing plate is provided having a support having thereon a layer having a hydrophilic surface and over the layer a silver precipitating layer, preferably comprising nickel sulfide and silver iodide. An image is provided in the silver precipitating layer by diffusion transfer and treated with a thiol or similar sulfur-containing material to improve the ink-water balance of the plate.