Abstract: The present invention provides blue-light emitting compounds capable of emitting blue light at a high luminance for a long time upon the application of electric energy, processes of producing the compounds, and luminescent elements including the blue light-emitting compounds. One of the compounds according to the present invention is characterized by the chemical structure represented by formula (1).

Abstract: The objectives of the present invention are to provide a red light-emitting compound capable of emitting red light at high color purity and strong luminance, and excellent in fastness, and to provide a luminescent element capable of emitting red light at strong luminance. The objectives are achieved by the Nile Red luminescent compound emitting red light represented by formula (1): wherein X is cyano group or a fluorohydrocarbyl group, and a luminescent element, the light-emitting layer of which includes the compound.

Abstract: The objective of the present invention is to provide a blue light-emitting polymer capable of emitting blue light for a long time, and further excellent in durability, processes of producing the polymer, and a luminescent element. The blue light-emitting polymer of the invention has a repeating unit represented by formula (1): wherein each of Ar1 and Ar2 is a benzene derivative, a naphthalene derivative, or an anthracene derivative. The present invention also provides processes of producing the blue light-emitting polymer, and a luminescent element including the polymer.

Abstract: The present invention provides luminescent polymers which can easily be formed into a film or a sheet, and which can easily be incorporated into a luminescent element. The present invention also provides luminescent elements which can be produced easily by the employment of the luminescent polymers.

Abstract: In view of the fact that luminescent compounds and polymers capable of emitting blue light for a long time and excellent in durability have not been developed, the present invention provides blue light-emitting compounds having special structures, blue light-emitting polymers having special repeating units, processes of producing the compounds, and luminescent elements including the polymers.

Abstract: A recording medium comprising a substrate and a non-porous ink receiving layer is provided. The ink receiving layer contains a water-insoluble polymer containing a cationic resin. The recording medium may be employed for recording by attaching droplets of a recording liquid thereon.

Abstract: A method for thermal transfer printing on an OHP sheet, comprising the steps of laying a backing sheet on a surface of said OHP sheet opposite a printing surface thereof, and conducting printing the printing surface of said OHP sheet by the use of a thermal transfer printer.

Abstract: A method for thermal transfer printing on an OHP sheet, comprising the steps of laying a backing sheet on a surface of said OHP sheet opposite a printing surface thereof, and conducting printing the printing surface of said OHP sheet by the use of a thermal transfer printer.

Abstract: A recording member comprises a condensation product of an isocyanate compound and a polyether-polyol. A recording member comprises a substrated and an ink-receiving layer formed thereon in which a condensation product of an isocyanate compound and a polyether-polyol is contained. A recording member comprises a condensation product of an isocyanate compound and a polyether-polyol as main component and is in the form of a film.

Abstract: A recording medium comprising a substrate and a non-porous ink receiving layer is provided. The ink receiving layer contains a water-insoluble polymer containing a cationic resin. The recording medium may be employed for recording by attaching droplets of a recording liquid thereon.

Abstract: There are disclosed an ink-receiving composite polymer material wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving polymer forming, from any one surface side thereof, and a recording medium for ink-jet recording wherein a nonvolatile organic compound is caused to penetrate into and diffuse through an ink-receiving layer, from the surface thereof.

Abstract: A recording medium comprises an ink receiving layer provided on a substrate, wherein said ink receiving layer contains a cationically modified product of polyvinyl alcohol and a water soluble polymer having no active hydrogen.

Abstract: A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10.sup.14 .OMEGA./cm.sup.2, and has property of trapping a recording agent which is soluble and/or dispersible in an aqueous medium.

Abstract: A light-transmissive recording member comprises a light-transmissive substrate and an ink acceptor provided on said substrate, wherein powdery particles are imparted onto the surface of said ink acceptor.

Abstract: A recording medium for recording with aqueous ink without direct contact of recording means therewith comprises an under layer and an upper layer provided thereon. The upper layer is formed of substantially water-resistant resin and is sufficiently thin to provide immediate water and air permeability and the under layer is more hydrophilic than the upper layer. There is also provided a recording process employing aqueous ink droplets and a recording medium as mentioned above.