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JPH0148303B2 |
Imidazolylmethylene gp.-contg. dyes of formula (I) are new. In the formula, R1 is H, 1-6C alkyl or 2-6C alkenyl; each R2 and R3 independently is H, 1-5C alkyl or 2-5C alkenyl; R4 is 1-12C alkyl and X(-) is an anion. F is a (m+n)-valent r...
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JPH01258659A |
NEW MATERIAL:2-Hydroxy-3-(2-methyl-4-chlorophenyl)carbamoylbenzo
>>a] carbazole. USE: Useful as a coupler to obtain an azo compound usable as an electric charger generating substance in an electrophotographic sensitized material. PREPARA...
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JPH01258660A |
NEW MATERIAL:2-Hydroxy-3-carbamoylbenzo>>a]carbazole derivative shown by the formula. EXAMPLE: 2-Hydroxy-3-(2,3-dimethylphenyl)carbamoylbenzo>>a]carbazole.
USE: A coupler for synthetic azo compounds useful as an organic photoconductive ...
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JPH01258661A |
NEW MATERIAL:2-Hydroxy-3-carbamoylbenzo>>a]carbazole derivative shown by the formula. EXAMPLE: 2-Hydroxy-3-(2,3-dimethylphenyl)carbamoylbenzo>>a]carbazole-
8- chlorobenzo>>a]carbazole. USE: A coupler for synthetic azo compounds useful as...
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JPH01250349A |
NEW MATERIAL:A compound of formula I [R1, R2 are H, alkyl, aryl, heterocyclic residue or incorporate to form a ring; R3 is H except the case where R4 is H, alkyl, alkoxy, alkylsulfonyl, alkylmercapto, halogen, nitro, aryl; n is 1W4; R4 i...
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JPH0144740B2 |
The invention relates to a process for coloring polyamides in the melt with azo pigments of the formula wherein A is the radical of a diazo or tetraazo component, R1, R2 and R3 are hydrogen atoms or alkyl, cyclo alkyl, phenylalkyl or ary...
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JPH0144235B2 |
A cholesteric guest-host liquid crystal composition having a positive dielectric anisotropy and consisting of a positive nematic host component, an optically active cholesteric component, and a tetra-azo dichroic dye guest component havi...
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JPH01222264A |
PURPOSE: To elevate sensitivity, sensitivity after repeated use, to reduce fluctuation of chargeability and optical fatigue, and to improve durability, of an electrophotographic sensitive body by using a specified azo compd. CONSTITUTION...
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JPH01210960A |
PURPOSE: To increase sensitivity and durability of an electrophotographic sensitive body by incorporating a specified trisazo dye into a photoconductive layer. CONSTITUTION: A trisazo dye expressed by formula I is incorporated as a charg...
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JPH01210464A |
PURPOSE: To attain suitablity for ink jet printing ink by turning a trisazo dye having a specific structure into a lithium salt to improve preservable stability, viscosity, surface tension or the like. CONSTITUTION: The lithium salt of t...
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JPH01201670A |
PURPOSE: To provide an electrophotographic sensitive body which has excellent carrier generatability, high sensitivity and high durability and is excellent in combination with a wide range of carrier transfer materials by providing a pho...
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JPH01201668A |
PURPOSE: To provide an electrophotographic sensitive body which has excellent carrier generating property, high sensitivity and high durability and is excellent in combination with a wide range of carrier transfer materials by providing ...
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JPH01201669A |
PURPOSE: To provide an electrophotographic sensitive body which has excellent carrier generating property, high sensitivity and high durability and is excellent in combination with a wide range of carrier transfer materials by providing ...
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JPH01200362A |
PURPOSE: To improve stability by forming a photosensitive layer contg. a specified bisazo compd. on an electrically conductive support. CONSTITUTION: A photosensitive layer contg. a bisazo compd. represented by formula I is formed on an ...
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JPH0138108B2 |
Heterocyclic compounds of the formula wherein R1 denotes a substituent, R2 denotes an optionally substituted carbocyclic-aromatic or heterocyclic-aromatic radical and n denotes 0, 1, 2, 3 or 4, and azo colorants of the formula wherein D ...
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JPH01200266A |
PURPOSE: To obtain an electrophotographic sensitive body having excellent characteristic of high sensitivity, small residual potential and excellent durability by the excellent carrier generatability of a bisazo compd. by incorporating t...
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JPH01200363A |
PURPOSE: To improve stability by forming a photosensitive layer contg. a specified bisazo compd. on an electrically conductive support. CONSTITUTION: A photosensitive layer contg. a bisazo compd. represented by formula I is formed on an ...
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JPH01200264A |
PURPOSE: To obtain an electrophotographic sensitive body which has high sensitivity and small residual potential and excellent durability by the characteristic of a bisazo compd. that said compd. is excellent in carrier generatability by...
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JPH01200265A |
PURPOSE: To obtain an electrophotographic sensitive body having excellent characteristics of high sensitivity, small residual potential and high durability by the excellent carrier generatability of a bisazo compd. by incorporating the b...
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JPH01198763A |
PURPOSE:To provide the electrophotographic sensitive body which is excellent in both sensitivity and durability by providing a photosensitive layer contg. a specific bisazo compd. on a conductive base. CONSTITUTION:This electrophotograph...
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JPH01198761A |
PURPOSE: To improve carrier generatability by having a photosensitive layer contg. a specific bisazo compd. on a conductive base. CONSTITUTION: This photosensitive body has the photosensitive layer contg. the bisazo compd. expressed by t...
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JPH01198666A |
Heterocyclic compounds of the formula wherein R1 denotes a substituent, R2 denotes an optionally substituted carbocyclic-aromatic or heterocyclic-aromatic radical and n denotes 0, 1, 2, 3 or 4, and azo colorants of the formula wherein D ...
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JPH01198762A |
PURPOSE: To provide the electrophotographic sensitive body which s excellent in both sensitivity and durability by providing a photosensitive layer contg. a specific bisazo compd. on a conductive base. CONSTITUTION: This electrophotograp...
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JPH01197760A |
PURPOSE: To enhance carrier genetability and to obtain a photosensitive body having high sensitivity, small residual potential and high durability by using the bisazo compd. expressed by the prescribed formula. CONSTITUTION: A photosensi...
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JPH01191153A |
PURPOSE:To decrease potential fluctuation at and under a high temp. and high humidity by incorporating a specific disazo pigment into a photoconductive layer. CONSTITUTION:This electrophotographic sensitive body contains the disazo pigme...
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JPH01191154A |
PURPOSE:To decrease potential fluctuation at and under a high temp. and high humidity by incorporating a specific disazo pigment into a photoconductive layer. CONSTITUTION:This electrophotographic sensitive body contains the disazo pigme...
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JPH01186962A |
PURPOSE: To improve sensitivity and durability by incorporating a specific diazo pigment into a photoconductive layer. CONSTITUTION: The diazo pigment expressed by the formula I is incorporated into the photoconductive layer. In the form...
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JPH01186963A |
PURPOSE: To improve sensitivity and durability by incorporating a specific trisazo pigment into a photoconductive layer. CONSTITUTION: The trisazo pigment expressed by the formula I is incorporated into the photoconductive layer. In the ...
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JPH01183665A |
PURPOSE: To improve the sensitivity and repetitive characteristic of a photosensitive body by providing a photosensitive layer contg. specific disazo compds. CONSTITUTION: One or more than one kinds of the compds. expressed by formula I ...
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JPH01180559A |
PURPOSE: To obtain an electrophotographic sensitive body high in sensitivity in both of positive and negative charging conditions and superior repetition characteristics by using a specified disazo pigment as an electric charge generatin...
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JPH01180557A |
PURPOSE: To obtain an electrophotographic sensitive body high in sensitivity in both of positive and negative charging conditions and superior repetition characteristics by using a specified disazo pigment as an electric charge generatin...
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JPH01180558A |
PURPOSE: To obtain an electrophotographic sensitive body high in sensitivity in both of positive and negative charging conditions and superior repetition characteristics by using a specified disazo pigment as an electric charge generatin...
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JPH01180561A |
PURPOSE:To obtain a photoconductive film having high sensitivity by incorporating a specific hexaazo compd. therein. CONSTITUTION:At least one kind of the hexaazo compd. expressed by the formula I is incorporated into the above-mentioned...
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JPH01180554A |
PURPOSE:To obtain an electrophotographic sensitive body high in characteristics of each of potential acceptance, sensitivity, and image formation, small in variance of sensitivity and potential acceptance even at the time of repeated use...
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JPH01180560A |
PURPOSE:To obtain a photoconductive film having high sensitivity and an electrophotographic sensitive body formed by using said film by using a specific hexaazo compd. CONSTITUTION:At least one kind of the hexaazo compd. expressed by the...
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JPH01179160A |
PURPOSE:To enhance sensitivity of a photosensitive body, to reduce its residual potential, and to elevate its durability by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION:The photosensitive layer 4 form...
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JPH01179161A |
PURPOSE:To enhance sensitivity and durability of a photosensitive body and to reduce its residual potential by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION:The photosensitive layer 4 formed on a condu...
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JPH01179155A |
PURPOSE: To enhance sensitivity of a photosensitive body, to reduce its residual potential, and to elevate its durability by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION: The photosensitive layer 4 fo...
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JPH01179162A |
PURPOSE: To enhance sensitivity of a photosensitive body, to reduce its residual potential, and to elevate its durability by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION: The photosensitive layer 4 fo...
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JPH01179158A |
PURPOSE: To enhance sensitivity of a photosensitive body, to reduce its residual potential, and to elevate its durability by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION: The photosensitive layer 4 fo...
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JPH01179156A |
PURPOSE: To enhance sensitivity and durability of a photosensitive body and to reduce its residual potential by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION: The photosensitive layer 4 formed on a con...
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JPH01179159A |
PURPOSE: To enhance sensitivity and durability of a photosensitive body and to reduce its residual potential by incorporating a specified bisazo compound in a photosensitive layer. CONSTITUTION: The photosensitive layer 4 formed on a con...
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JPH01172969A |
PURPOSE:To obtain an electrophotographic sensitive body having high sensitivity and excellent repetitive characteristics by providing a photosensitive layer contg. at least one kind among specific disazo compds. CONSTITUTION:The photosen...
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JPH01159660A |
PURPOSE: To obtain a photoconductive film high in sensitivity by incorporating a specified tetrakisazo pigment. CONSTITUTION: The photoconductive film contains at least one of the tetrakisazo pigments represented by formula I in which A ...
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JPH01159661A |
PURPOSE: To obtain a photoconductive film high in sensitivity by incorporating a specified tetrakisazo pigment. CONSTITUTION: The photoconductive film contains at least one of the tetrakisazo pigments represented by formula I in which A ...
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JPH01142727A |
PURPOSE:To obtain a photoconductive film sensitive body high in sensitivity and low in residual potential and an electrophotographic sensitive body good in durability b incorporating at least one of styryl compounds specified in structur...
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JPH01121273A |
NEW MATERIAL:The B-form polymorphic substance of 2-(2-dimehylamino-5- methxybenzylfulfinyl)benzimidazole expressed by the formula. USE: An antiulcer agent and cell protective agent. PREPARATION: 2-(2-Dimethylamino-5-methoxybenzylsulfinyl...
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JPH01107267A |
PURPOSE: To improve the sensitivity for the whole region of visible rays and the durability of an electrophotographic sensitive body by incorporating a specified azo compd. into a photosensitive layer formed on an electroconductive base ...
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JPH01100556A |
PURPOSE: To obtain a photosensitive body having excellent characteristics after repetitive uses and excellent durability by providing a layer contg. a specific bis-azo pigment on a conductive base. CONSTITUTION: This photosensitive body ...
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JPH01100559A |
PURPOSE: To obtain an excellent effect of having sensitivity up to a long wavelength region by incorporating a specific tris-azo pigment into a photosensitive layer. CONSTITUTION: This photosensitive body contains the tris-azo pigment ex...
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