Abstract: An optical information recording medium is disclosed.The medium is comprised of a plastic substrate made of acrylic resin, an undercoating comprised at least one of polyvinyl pyrrolidone and polyvinyl formal on the substrate, and a heat mode recording layer comprised of metal on the undercoating. The recording medium has improved adhesion between the recording layer and the substrate without decreasing the sensitivity of the recording layer.

Abstract: A heat-mode recording material is disclosed. The material comprises a base which is overlaid with a recording layer made of a metal, semimetal or semiconductor containing at least hydrogen.

Abstract: A photosensitive image forming material comprising a tin sulfide image forming layer on a base and a photosensitive resin composition layer on said layer is disclosed. An image forming process using said material is also disclosed comprising imagewise exposing the same and then simultaneously developing the photosensitive resin composition layer and etching the exposed tin sulfide image forming layer. Alternatively, development and etching can be conducted as two separate steps.

Abstract: A photosensitive image forming material which comprises a photosensitive resin composition layer on a base and an image forming layer composed of a mixture of a metal and a sulfide between said base and said photosensitive resin composition layer.

Abstract: A method for forming images which comprises imagewise exposing a recording element comprising a support having directly or on a subbing layer thereon, as a recording layer, a vacuum deposited layer containing at least about 20% by volume of an organic substance, adhering a strippable film on the surface of the recording layer prior to or after the imagewise exposure, and peeling apart the strippable film from the recording layer after the imagewise exposure, whereby the exposed areas of the recording layer remain on the support and the non-exposed areas are transferred onto the strippable film.

Abstract: A mono- or multi- layer recording member, suitable for recording using e.g., a laser, comprising a support having a recording layer thereon wherein the recording layer contains (a) a metal selected from the group consisting of Sn, Bi and In and (b) a halide capable of being thermally or photo-chemically activated by high energy density light irradiation and which thereby can promote a thermally initiated phase or structure change of the metal (a).

Abstract: In an industrial dry cleaning operation in which wrinkles are removed from the cleaned garments by suspending them in a heated atmosphere, the garments are rendered soil-resistant by spraying them with a liquid containing a dilute polyfluoroalkyl stain repellent after cleaning and prior to suspending them in a heated atmosphere in which they are heated for a time period and at a temperature sufficient to first evaporate said liquid and then to set the stain repellent concurrently with the removal of wrinkles.

Abstract: A method for isolating and purifying a physiologically active substance contained in a tissue or a body fluid using an insoluble type naturally occurring proteolytic enzyme inhibitor or an insoluble type proteolytic enzyme alone or in combination with the insoluble type naturally occurring proteolytic enzyme inhibitor is disclosed.