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JPH0450345B2 |
A recording liquid is characterized by containing as a dye a compound represented by the formula wherein R1 represents hydrogen or C1-C2 alkyl, R2 and R3 each represent hydrogen, C1-C2 alkyl, or C1-C2 alkoxy, R4 and R5 represent hydrogen...
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JPH0449585B2 |
NEW MATERIAL:A compound of formula I [R1 and R2 are H, lower alkyl, (substituted) aralkyl, (substituted) aromatic group or (substituted) heterocyclic ring or R1 and R2 together may form a ring]. USE:An electric charge generating substanc...
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JPH0447714B2 |
NEW MATERIAL:A compound of formula I [R1 and R2 are lower alkyl, (substituted) aralkyl, (substituted) aromatic group or (substituted) heterocyclic ring or R1 and R2 together may form a ring]. USE:Useful as a photosensitive material in el...
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JPH0446317B2 |
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JPH0441339B2 |
Disazo compounds as well as the compositions and electrophotographic light-sensitive materials utilizing them are disclosed. The disazo compounds are represented by the general formula (I): wherein the substituents within general formula...
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JPH0441341B2 |
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JPH0441342B2 |
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JPH0441343B2 |
An electrophotographic light sensitive element is disclosed. The element is comprised of a photoconductive support base having provided thereon a disazo compound dispersed in a binder or a charge carrier-transporting medium. A novel grou...
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JPH0435067B2 |
PURPOSE:To obtain an electrophotographic sensitive body which has high sensitivity and small residual potential, maintains the initial characteristics without change even after repetitive use and has excellent durability by using a speci...
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JPH0435068B2 |
PURPOSE:To enhance sensitivity, to reduce residual potential, to prevent these characteristics from change due to repeated uses, and to enhance durability by incorporating a specified azo compd. in a photosensitive layer. CONSTITUTION:Th...
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JPH0427545B2 |
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JPH0426347B2 |
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JPH0422267B2 |
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JPH0422265B2 |
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JPH0422263B2 |
PURPOSE:To enhance stability of a photosensitive body by forming a photosensitive layer contg. a specified disazo pigment as an effective component on a conductive supporting material. CONSTITUTION:A photosensitive layer formed on a cond...
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JPH0422261B2 |
PURPOSE:To obtain an electrophotographic sensitive body high in sensitivity and long in life by laminating an electrostatic charge generating layer contg. a specified disazo compd. as a charge generating agent, on a charge transfer layer...
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JPH0422262B2 |
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JPH0422268B2 |
PURPOSE:To enhance stability of a photosensitive body by forming a photosensitive layer contg. a specified disazo pigment as an effective component on a conductive supporting material. CONSTITUTION:A photosensitive layer formed on a cond...
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JPH0422264B2 |
PURPOSE:To obtain easily producible laminated photosensitive body having high sensitivity with its photosensitive wavelength region in short wavelength region by providing a photoconductive layer contg. a specified diazo compd. on an ele...
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JPH0422266B2 |
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JPH0421707B2 |
Compounds of the formula wherein each A, independently, is a wherein R1 is hydrogen, halo, C1-4alkyl or C1-4alkoxy, R2 is hydrogen, halo, C1-4alkyl, C1-4alkoxy, -NHCONH2 or -NHCOC1-4alkyl, R3 is hydrogen or methoxy, and m is 0, 1 or 2, e...
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JPH0420952B2 |
A disazo pigment is prepared by coupling the tetrazo compound of 3,3'-dichlorobenzidine with an acetoacetanilide compound which is other than those represented by the below-described general formula (I) and is free of water-soluble group...
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JPH0420948B2 |
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JPH0417428B2 |
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JPH0417426B2 |
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JPH0417427B2 |
A function separated type electrophotographic photosensitive member for infrared rays comprises a combination of a charge generation material and a charge transport material, wherein the electrophotographic photosensitive member for infr...
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JPH0417423B2 |
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JPH0415265B2 |
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JPH0410514B2 |
A composition for use in thermally-addressable liquid crystal display devices, comprising a smectic liquid crystal material and a helichromic compound possessing both a chromophoric moiety and an optically-active moiety. The helichromic ...
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JPH0445166A |
NEW MATERIAL:Compounds of formula I (R1 and R2 are H, alkyl, OH, alkoxy(carbonyl), carboxy, acyl, aryl, halogen, carbamoyl or cyano; R3 is alkyl, alkoxy, amino, N-substituted amino, aryl, halogen, OH, carboxy, acyl, alkoxycarbonyl, carba...
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JPH0445162A |
NEW MATERIAL:Compounds of formula I (A is coupler residue). EXAMPLE: A compound of formula II. USE: A charge-producing material in a photoreceptor for electrophotography. PREPARATION: Sodium nitrite, etc., is added dropwise to an acidic ...
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JPH0445165A |
NEW MATERIAL:Compounds of formula I (A is coupler residue). EXAMPLE: A compound of formula II. USE: A charge-producing material in a photoreceptor for electrophotography. PREPARATION: A diamine of formula III is diazotized to obtain its ...
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JPH0445161A |
NEW MATERIAL:Compounds of formulae I and II (A is coupler residue; Z is O or S). EXAMPLE: A compound of formula III. USE: A charge-producing material in a photoreceptor for electrophotography. PREPARATION: Sodium nitrite, etc., is added ...
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JPH042948B2 |
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JPH042944B2 |
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JPH042945B2 |
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JPH0374831B2 |
The integrated type electrophotographic light-sensitive material is disclosed, the material comprising two layers comprising (1) an electric charge generating layer containing an electric charge generating material and (2) an electric ch...
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JPH0374832B2 |
A photoconductive composition is disclosed, containing at least one trisazo compound represented by the following general formula (1):wherein Z represents, -0-, -S-, or -Se-; R6 represents a hydrogen atom, a lower alkyl group, an aryl gr...
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JPH0373672B2 |
Using the method of azoic dyeing, fast blue dyeings are obtained when the bis-diazotable diazo component used is a compound of the general formula (1) (1) in which R is a straight-chain or branched alkyl group of 3 to 5 carbon atoms or a...
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JPH03258858A |
PURPOSE: To obtain the subject economic pigment showing a peak at a specified diffraction angle of its X-ray diffraction pattern, excellent in coloring power, etc., and useful as a pigment for a printing ink by coupling a specified coupl...
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JPH0370217B2 |
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JPH0370218B2 |
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JPH0370219B2 |
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JPH0368070B2 |
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JPH0363745B2 |
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JPH0360424B2 |
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JPH0359424B2 |
A light-sensitive composition is disclosed, containing at least one of tetrakisazo compounds having the following general formula [1]: [1] wherein Cp represents a coupler residue; A is a single bond, in which n is an integer of from 1 to...
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JPH0358106B2 |
Disclosed is a photosensitive material for electrophotography, which comprises a photosensitive layer containing a tetrakis-azo pigment represented by the following formula: wherein X1 stands for a lower alkyl group, a lower alkoxy group...
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JPH0356263B2 |
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JPH0354140B2 |
Asymmetric molecules having a plurality of arylazo linking groups bis-substituted aryl thiazyl end groups, and either naphthyl perimidine or julolidene end groups, are found to be dichroic dyes which form guest-host combinations with nem...
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