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    • 24. 发明专利
    • COLORED RESIN COMPOSITION
    • JPH06279635A
    • 1994-10-04
    • JP6796193
    • 1993-03-26
    • MITSUBISHI PETROCHEMICAL CO
    • OHASHI TOYOJIOOYA YUKAKOISHIBASHI TOSHIAKI
    • C08L25/04C08G59/32C08L63/00C08L67/00C08L67/02
    • PURPOSE:To obtain the subject composition excellent in color homogeneity and protective effect for surface property deterioration and useful for coating, etc., by compounding a styrene polymer, a thermoplastic polyester and a specific polymerization product with a coloring agent contained in a dispersing phase. CONSTITUTION:The objective composition is obtained by heat-melting and kneading (A) styrene polymer constituting a matrix phase, (B) thermoplastic polyester constituting a dispersion phase, (C) polymer reaction product obtained by reacting styrene polymer having an epoxy group with thermoplastic polyester containing a carboxyl group at the end of molecular chain, whose equivalents of epoxy group and carboxy group preferably become identical with each other at the end of reaction and (D) a coloring agent (preferably having larger affinity with component B and smaller particle size than dispersion phase particles, e.g. carbon black and Ferroin yellow). Preferable addition ratios are as follows: component A/component B=55/45-95/5; the amounts of component C and component D based on 100 pts.wt. of the total of component A and component B are respectively 1-20 pts.wt. and 0.5-15 pts.wt.
    • 25. 发明专利
    • PRODUCTION OF PHTHALOCYANINE-TYPE PHOTO-CONDUCTIVE COMPOSITION
    • JPH06212092A
    • 1994-08-02
    • JP654093
    • 1993-01-19
    • MITSUBISHI PETROCHEMICAL CO
    • KOBAYASHI MARIKOOHASHI TOYOJISHIGEMATSU YASUYUKI
    • C09B47/04C09B67/50G03G5/06
    • PURPOSE:To obtain the subject composition useful for photosensitive material, etc., giving a high-quality image having sharp edge by stirring phthalocyanine and a phthalocyanine derivative substituted with a specific number of electron- attracting groups in the presence of an organic solvent under application of external mechanical force. CONSTITUTION:The objective composition is capable of outputting a digital signal by inputting analog light as well as digital light, usable as a photosensitive material for digital-recording electrophotography and gives a high-quality image having sharp edge even by using in a photosensitive material for receiving analog light. The composition can be produced by stirring (A) phthalocyanine and (B) a phthalocyanine derivative having halogen atoms or electron-attracting groups substituting the benzene nucleus of the phthalocyanine molecule (e.g. tetranitro-nonmetallic phthalocyanine) in the presence of an organic solvent excluding aromatic organic solvent under application of external mechanical force for >=30min. The ratio of the number of the halogen atoms or the electronattracting groups to the total number of phthalocyanine units of the phthalocyanine and the phthalocyanine derivative is 0.001-0.5.
    • 28. 发明专利
    • PRODUCTION OF PHTHALOCYANINE COMPOSITION
    • JPH0570702A
    • 1993-03-23
    • JP26127791
    • 1991-09-13
    • MITSUBISHI PETROCHEMICAL CO
    • OHASHI TOYOJIISHIBASHI TOSHIAKIGODA JUNKOITSUBO AKIRAKOYAMA TOSHIYUKIOZAWA MASATOMIIIJIMA KATSUTOSHI
    • C09B47/06
    • PURPOSE:To provide a phthalocyanine composition for use as a digital optical input photoreceptor in electrophotography by mixing to specific phthalocyanine compounds and mixing the mixture with another specific phthalocyanine derivative. CONSTITUTION:100 pts.wt. phthalic anhydride is mixed with 0.001-5 pts.wt. phthalic anhydride having an electron-attracting group (e.g., nitro group), 15-40 pts.wt. metal halide, 100-200 pts.wt. nitrogen donor (e.g., urea), and l-3 pts.wt. catalyst (e.g., ammonium molybdate). This mixture is heated in a solvent (e.g., nitrobenzene) at 180-250 deg.C for 3-8hr. The resulting hot mixture is filtered and the reaction product is purified by treating it with an acid and an alkali, thereby to obtain a mixture (a) of phthalocyanine compounds respectively represented by formulae 3 and 4 (wherein M is H, Cu, etc., and r to R each is H or an electron-attracting group). 0.01-10 pts.wt. phthalocyanine derivative represented by formula 5 (wherein M is H, CU, etc., and R to R each is H or an electron- attracting group) (e.g., a tetranitrophthalocyanine) is added to 100 pts.wt. mixture (a). The resulting mixture is dissolved in an acid (e.g., methanesulfonic acid) and reprecipitated by dilution with water thereby to obtain a phthalocyanine composition.