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公开(公告)号：DE3787780D1
公开(公告)日：1993-11-18
申请号：DE3787780
申请日：1987-08-27
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI MITSUI TOATSU , ITOH HISATO MITSUI TOATSU APAA , NISHIZAWA TSUTOMU , YAMAGUCHI AKIHIRO
Abstract: Disclosed herein is an electrophotographic photoreceptor having high sensitivity and excellent durability. The photoreceptor has a photosensitive layer which contains at least one disazo compound having the 2-phenyl-benzooxazole skeleton.
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公开(公告)号：CH669758A5
公开(公告)日：1989-04-14
申请号：CH369885
申请日：1985-12-19
Applicant: MITSUI TOATSU CHEMICALS
Inventor： HOSONUMA SIN , FUJIO JUNICHI , TANAKA KOZO , SUZUKI HARUE , BABA KENICHI , NAKAMURA KATSUJI , NAKATSUKA MASAKATSU , NISHIZAWA TSUTOMU
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公开(公告)号：FR2542323B1
公开(公告)日：1987-05-22
申请号：FR8403601
申请日：1984-03-08
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , NISHIZAWA TSUTOMU , MIKODA TAMIO , MIYAHARA TOORU , KIKUTSUGI MASAHARU
Abstract: An anthraquinonic dye of the formula (I) is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
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公开(公告)号：CA1211753A
公开(公告)日：1986-09-23
申请号：CA448887
申请日：1984-03-05
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , NISHIZAWA TSUTOMU , MIKODA TAMIO , MIYAHARA TOORU , KIKUTSUGI MASAHARU
Abstract: TITLE OF THE INVENTION DICHROIC DYE AND LIQUID CRYSTALLINE COMPOSITION FOR COLOR DISPLAY An anthraquinonic dye of the formula (I) is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
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公开(公告)号：CH643289A5
公开(公告)日：1984-05-30
申请号：CH203080
申请日：1980-03-14
Applicant: MITSUI TOATSU CHEMICALS
Inventor： MORINAKA RYOICHI , TUKAHARA RYOICHI , NISHIZAWA TSUTOMU , HIDAKA TUNEO
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Patent Agency Ranking
公开(公告)号：DE3750498T2
公开(公告)日：1995-02-09
申请号：DE3750498
申请日：1987-06-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , ITOH HISATO , NISHIZAWA TSUTOMU , YAMAGUCHI AKIHIRO
Abstract: This new photosensitive material for electrophotography consists of a photosensitive layer that contains at least one azo compound represented by the general formula (I), where A is a coupling residual group; Q is sulphur atom or SO2, l, m is independently 1 or 0. The photosensitive layer contains, in addition to the azo compound, charge-transfer materials and binders and optionally other materials. The amount of azo compound is 50 wt.% or less (better 30 wt.% or less) while the amount of charge transfer materials is 10-95 wt.%. The photosensitive layer is laminated with a charge-producing layer containing azo compounds and a charge transfer layer containing charge transfer materials.
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公开(公告)号：GB2140816B
公开(公告)日：1986-09-03
申请号：GB8405976
申请日：1984-03-07
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , NISHIZAWA TSUTOMU , MIKODA TAMIO , MIYAHARA TOORU , KIKUTSUGI MASAHARU
Abstract: An anthraquinonic dye of the formula (I) is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
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公开(公告)号：GB2140816A
公开(公告)日：1984-12-05
申请号：GB8405976
申请日：1984-03-07
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , NISHIZAWA TSUTOMU , MIKODA TAMIO , MIYAHARA TOORU , KIKUTSUGI MASAHARU
Abstract: An anthraquinonic dye of the formula (I) is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
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公开(公告)号：DE3408484A1
公开(公告)日：1984-09-13
申请号：DE3408484
申请日：1984-03-08
Applicant: MITSUI TOATSU CHEMICALS
Inventor： YAMADA YASUYUKI , NISHIZAWA TSUTOMU , MIKODA TAMIO , MIYAHARA TOORU , KIKUTSUGI MASAHARU
Abstract: An anthraquinonic dye of the formula (I) is provided. When used as dichloric dyes in liquid crystalline color display elements, these dyes (1) have sufficient coloring ability in small amounts, (2) have a high dichloric ratio, (3) are fully soluble in liquid crystals, and (4) have excellent durability, are stable and do not degrade the performance of a display device upon long-term use.
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公开(公告)号：CH615952A5
公开(公告)日：1980-02-29
申请号：CH1130576
申请日：1976-09-06
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TSUJIMOTO MICHIHIRO , TSUKAHARA RYOICHI , NISHIZAWA TSUTOMU , OKUBO ICHIRO
IPC: C08L67/00 , C07C67/00 , C07C231/00 , C07C235/40 , C07C235/82 , C07C237/26 , C08K5/00 , C08K5/07 , C08K5/08 , C08K5/13 , C08K5/16 , C08K5/42 , C08K5/43 , C08L1/00 , C08L7/00 , C08L21/00 , C08L23/00 , C08L27/00 , C08L51/00 , C08L51/02 , C08L101/00 , C09B3/58 , D06P1/16 , D06P3/00 , D01F1/06 , C09B13/00
Abstract: 1491343 Naphthacenequinone compounds MITSUI TOATSU CHEMICALS Inc 4 Feb 1975 [7 Feb 1974] 4766/75 Heading C4P Naphthacene quinone derivatives have the formula in which R 1 , R 2 , R 3 and -CO-X-CO- are substituents in the optional positions on the rings of the compound; R 1 and R 3 may be the same or different and represent a hydrogen atom, a chlorine atom, an hydroxyl or an amino group; R 2 represents a radical represented by the formulae: (i) -COOR 4 in which R 4 represents a hydrogen atom, an alkyl, alkoxyalkyl, cyclohexyl or aralkyl group or a cation; in which R 5 and R 6 may be the same or different and represent a hydrogen atom, an alkyl or aryl group; (iii) -CONH-R 7 in which R 7 represents an amino group; in which R 8 and R 9 may be the same or different and represent a hydrogen atom, an alkyl, alkoxyalkyl, or aryl group; (v) in which R 10 represents a methyl group or a chlorine atom, or (vi) -SO 3 -R 11 in which R 11 represents a cation; and X represents a hydrazo or an aromatic diamino group. The compounds may be used as dyes or pigments with synthetic or semisynthetic high molecular weight organic compounds, such as amino-formaldehyde resin, polymers or copolymers of methacrylic acid ester, vinyl chloride, vinylidine chloride, olefines or styrene, polyamides, polyesters, or plyacrylic, polyacetal, phenol, alkyd, epoxy, cellulose acetate, nitrocellulose or cellulose ester resins.
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