Abstract: Provided is an aqueous gel preparation for covering wounds which contains a paste having a gel strength, in water, of 7.5 to 100 g. Such a wound covering preparation is effective for promoting wound healing, is capable of absorbing exudate sufficiently, does not adhere to the wound surface and can be held at the affected part stably.

Abstract: An anti-inflammatory analgesic plaster carries thereon a base which comprises piroxicam and a polyoxyethylene nonionic surfactant having 5-15 moles of added ethylene oxide.

Abstract: A carrier for developing electrostatic latent images is disclosed, which comprises a core material at least a part of which is coated with a resin containing a copolymer comprised of vinylidene chloride and at least one monomer having an unsaturated double bond and being copolymerizable with vinylidene chloride, wherein the copolymer is comprised of (a) from 70 to 30 mol % of vinylidene chloride, (b) from 20 to 60 mol % of acrylonitrile and/or an acrylonitrile derivative, and (c) from 0 to 40 mol % of a monomer having an unsaturated double bond and being copolymerizable with components (a) and (b). An electrophotographic developer containing the carrier and an electrophotographic developing process using the developer are also disclosed.

Abstract: An image readout device having a plurality of readout elements for converting image into electrical signals, each element having a photoconductive layer and a pair of electrodes which contact the photoconductive layer, and between which the layer is disposed. The photoconductive layer contains a charge generation material and a charge transport material. Oxytitanium phthalocyanine is used as the charge generation material.

Abstract: An organic electroluminescent device having an anode, an organic hole injection transport layer, an organic luminescent layer and a cathode formed sequentially in this order, wherein the organic hole injection transport layer contains a metal complex and/or a metal salt of an aromatic carboxylic acid.

Abstract: A diclofenac sodium plaster has a backing material and a paste spread on the backing material. The paste is composed of diclofenac sodium, a penetration enhancer composed of 1-menthol and propylene glycol, and a hydrophilic base composed principally of a water-soluble polymer.

Abstract: According to the present invention, there is provided a layered-type organic electrophotographic photoreceptor in which a charge generating layer containing organic charge generating material and a charge transporting layer containing organic charge transporting material are constructed on an electroconductive support, characterized in that a value n is not greater than 0.5 in the following equation (1):.eta.=.eta..sub.o E.sup.n (1)where .eta. represents a quantum yield as the whole photoreceptor, E represents an electric field and .eta..sub.o represents a constant, and that a film thickness of said charge transporting layer is not less than 30 .mu.m.

Abstract: An electrophotographic photoreceptor having an electrically conductive substrate and a photosensitive layer formed thereon, the photosensitive layer comprising a charge-generating agent, an organic charge-transporting agent and an anti-oxidant having the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl groups, is disclosed herein. The electrophotographic photoreceptor according to this invention has an improved durability in repeated copying operations and therefore a prolonged life.

Abstract: Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transport layer, said charge transport layer having the thickness of 27 .mu.m or above and being formed with a coating solution containing a condensation polymer of the viscosity-average molecular weight of 15,000 to 25,000 as a binder resin according to the dip coating method. The electrophotographic photoreceptor according to the present invention has the excellent durability because the resultant charge transport layer has the increased and uniform thickness without changing the electric properties, especially the charged potential.

Abstract: An electrophotographic photoreceptor comprising an electroconductive substrate and a photosensitive layer thereon containing a carrier generation material, a carrier transport material and an amine compound represented by the following formula (I): ##STR1## wherein A represents one selected from the group consisting of (i) --CH.sub.2 X,(ii) --CH.sub.2 CH.sub.2 X,wherein X represents an aromatic carbocyclic ring residue, an aromatic heterocyclic ring residue, a cycloalkyl group or a heterocycloalkyl group which may have a substituent,(iii) a cycloalkyl group or a heterocycloalkyl group which may have a substituent, and(iv) an aromatic carbocyclic ring residue or an aromatic heterocyclic ring residue which may have a substituent; B represents one selected from the group consisting of (i), (ii) and (iii) as defined in A; and R represents a hydrogen, alkyl group which may have a substituent or aralkyl group which may have a substituent is disclosed.

Abstract: Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transport layer, the charge transport layer containing a metal complex or salt of an aromatic carboxylic acid represented by the following general formula (I):ArCOOH (I)wherein Ar is an aromatic cyclic residue or an aromatic heterocyclic residue, optionally having one or more substituents. The electrophotographic photoreceptor according to the present invention has the excellent durability.

Abstract: Disclosed herein is an electrophotographic apparatus and method which repeatedly use an electrophotographic photoreceptor having on an electroconductive support a photosensitive layer formed by dispersing a charge-generating substance in a binder containing a charge-transporting substance and a binder resin and a means or step for optically erasing the residual charges on the photoreceptor after transfer, the main component of a light used in the means for optically erasing the residual charges having the wavelength range which satisfies the condition defined in the formula (1):l/d.ltoreq.0.5 (1)ps wherein l is the distance of penetration of the light, i.e. the distance in the direction of depth in which the light incident on the photosensitive layer is attenuated to one tenth in intensity, and d is the thickness of the photosensitive layer.

Abstract: An electrophotographic photoreceptor according to this invention has an electrically conductive support, a charge-generation layer, a charge-transport layer and a protective layer which consists essentially of a thermo-setting silicone resin and a polyvinyl acetal resin.The electrophotographic photoreceptor according to this invention has improved durability in repeated copying operations due to the inclusion of the polyvinyl acetal resin into the protective layer.

Abstract: A dual layer photoreceptor for use in electrophotography, wherein a charge transport layer containing a hydrazone compound and a binder polymer is laminated on a charge generation layer containing a titanium phthalocyanine compound of the formula: ##STR1## wherein X represents hydrogen atom, lower alkyl group, lower alkoxy group, allyloxy group, nitro group, cyano group, hydroxy group, benzyloxy group or halogen atom, Y represents halogen atom, alkoxy group or oxygen atom, n represents an integer of 1 or 2 and m represents an integer of 0 to 4, and a binder polymer, formed on an electroconductive substrate.

Abstract: Disclosed is a crystalline oxytitanium phthalocyanine which shows intense diffraction peaks at Bragg angles (2.theta..+-.0.2.degree.) of 9.3.degree., 10.6.degree., 13.2.degree., 15.1.degree., 15.7.degree., 16.1.degree., 20.8.degree., 23.3.degree., 26.3.degree. and 27.1.degree. in the X-ray diffraction spectrum, the intensity of the diffraction peak at Bragg angle of 26.3.degree. being most strong and the intensity of the diffraction peaks at Bragg angles between 4.degree.-8.degree. being less than 5% of the intensity of the diffraction peak at Bragg angle of 26.3.degree.. Further, disclosed is a photoreceptor for use in electrophotography, comprising at least a charge carrier generation layer in which the oxytitanium phthalocyanine above is dispersed in a binder polymer and a charge carrier transport layer laminated thereon.

Abstract: A double-layered electrophotographic plate having at least a charge generating layer and a charge transporting layer on an electroconductive substrate, wherein said charge transporting layer comprises(a) a dicyano vinyl compound represented by general formula (I): ##STR1## where R.sup.1 and R.sup.3 independently represent hydrogen, halogen, cyano, nitro or a substituted- or unsubstituted-arylcarbonyloxy group, and R.sup.2 represents hydrogen, halogen, cyano or a substituted- or unsubstituted-arylcarbonyloxy group with the proviso that R.sup.1, R.sup.2 and R.sup.3 are not simultaneously hydrogen, and/or a dicyano vinyl compound represented by general formula (II): ##STR2## where R.sup.4 represents hydrogen, halogen, lower alkyl or aryl group, and(b) an electron-donating organic compound.

Abstract: An electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound represented by the general formula (I): ##STR1## (wherein R.sup.1 and R.sup.2 are an alkyl, aralkyl or aryl group which may or may not have a substituent, n is a number of 1 or 2, and A is an aromatic hydrocarbyl group or aromatic heterocyclic group which may or may not have a substituent) and a binder.

Abstract: An electrophotographic plate comprising a conductive substrate and a photosensitive layer containing an organic photoconductor layer composed of a hydrazone compound represented by the general formula (I): ##STR1## (wherein R.sup.1 and R.sup.2 are an alkyl, aralkyl or aryl group which may or may not have a substituent, n is a number of 1 or 2, and A is an aromatic hydrocarbyl group or aromatic heterocyclic group which may or may not have a substituent) and a binder.

Abstract: A photosensitive composition which comprises an electron donative organic photoconductive compound and a sensitizer having the formula ##STR1## wherein A represents an aromatic group or heterocyclic group which can be substituted by an inert group; R represents cyano, nitro, akoxycarbonyl, aryl or carbamoyl group; and n is 0 or 1.