Abstract: A plate making film has a layer provided on a transparent substrate, the layer consisting essentially of a polymeric compound composed of a repeating unit represented by the following general formula (1): &Brketopenst;AXAR1&Brketclosest;  (1) where A is x, y and z each denote an integer of 1 or more, X is a residue of an organic compound having 2 active hydrogen groups, Y is a hydrocarbon group having 1 or more carbon atoms, and R1 is a dicarboxylic acid compound residue, or a diisocyanate compound residue. On the plate making film, an image is formed, preferably, by ink jets using, preferably, a plate making ink containing a mono- or disazo dye which is a yellow dye highly ultraviolet absorbing properties for a wavelength of 350 to 450 nm. An inexpensive, high resolution, high grade photomask for plate making is produced thereby.

Abstract: A plate making film has a layer provided on a transparent substrate, the layer consisting essentially of a polymeric compound composed of a repeating unit represented by the following general formula (1):

Abstract: An object of the present invention is to provide a water-absorptive material having a satisfactory water-absorptivity in an ion-exchanged water as well as an ionic aqueous solution and also having a satisfactory thermoplastic moldability, and also to provide a water-absorptive molded product having an excellent fabricability including heat-sealability.Thus, the present invention provides a water-absorptive material crosslinked by irradiation with an ionizing radiation or ultraviolet rays, which comprises a hydrophilic high molecular compound having a weight average molecular weight of at least 10,000 obtained by reaction of (i) a polyalkylene oxide compound having an organic compound containing two active hydrogen groups addition-polymerized with an alkylene oxide comprising ethylene oxide as the main component and (ii) a polycarboxylic acid, a polycarboxylic acid anhydride, a lower alkyl ester of polycarboxylic acid or a diisocyanate.

Abstract: A water-soluble composite film including a special film mainly made of water soluble high molecular compound composed of a specific repetitive unit and a polyvinyl alcohol resin film layered thereon to be laminated. This composite film can be used as a packaging material for chemicals and the like with the above special film inside. Thus, this water soluble composite film can be employed as a unit package material for bactericide, insecticide, dyestuff, pesticide and the like, or as a packaging material for disposable commodities of laundry bags, sanitary napkins and the like.