Abstract: The present invention provides novel .mu.-Oxo-aluminum/gallium phthalocyanine dimer having a structure of the formula (A): ##STR1## The .mu.-oxo-aluminum/gallium phthalocyanine dimer, and the mixed crystals comprising the .mu.-oxo-aluminum/gallium phthalocyanine dimer are suitable as a charge generating material for an organic photoconductive material, such as an electrophotographic photoreceptor.

Abstract: Positively-chargeable charge control agent and toner for developing electrostatic images that comprises a coloring agent, a resin for toners, and said positively-chargeable charge control agent. The positively-chargeable charge control agent comprises a metal complex salt or metal complex of an aromatic dicarboxylic acid having at least 1 perfluoroalkyl group, wherein the central atom of the metal complex salt or metal complex is a trivalent metal.

Abstract: Metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen, a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 may bind together to form an aromatic or aliphatic ring which may have one or more substituents of a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; M represents a metal; m represents an integer of 3 or more; n represents an integer of 2 or more.

Abstract: The present invention provides .mu.-oxo-gallium phthalocyanine dimer having a novel polymorph. The .mu.-oxo-gallium phthalocyanine dimer may be applied as a charge generator for an organic photoconductive material, such as a photoreceptor of practical use and a high-gamma photoreceptor. The resulting organic photoconductive material has good stability and good electronic properties. The .mu.-oxo-gallium phthalocyanine dimer having a novel polymorph which shows diffraction peaks at a Bragg angle (2.theta..+-.0.2.degree.) of 6.8.degree., 12.9.degree., 19.0.degree., 19.6.degree., 20.3.degree., 25.5.degree., 25.9.degree. and 26.9.degree. in an X-ray diffraction spectrum by CuK .alpha.-ray.

Abstract: Positively-chargeable charge control agent and toner for developing electrostatic images that comprises a coloring agent, a resin for toners, and said positively-chargeable charge control agent. The positively-chargeable charge control agent comprises a metal complex salt or metal complex of an aromatic dicarboxylic acid having at least 1 perfluoroalkyl group, wherein the central atom of the metal complex salt or metal complex is a trivalent metal.

Abstract: Metal compound of formula [I] which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent a hydrogen, a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; R.sup.1 and R.sup.2, R.sup.2 and R.sup.3, and R.sup.3 and R.sup.4 may bind together to form an aromatic or aliphatic ring which may have one or more substituents of a linear or branched alkyl group, or a linear or branched unsaturated alkyl group; M represents a metal; m represents an integer of 3 or more; n represents an integer of 2 or more.

Abstract: Polyethylene terephthalate resin composition comprising a polyethylene terephthalate resin and nigrosine, optionally containing fibrous reinforcing material, e.g. in an amount of about 10 to 120% by weight relative to the polyethylene terephthalate resin. The polyethylene terephthalate resin composition enables the production of molded products good in appearance, surface gloss, mechanical characteristics and light fastness. The composition has a crystallization rate upon molding which is lower than that of a corresponding natural polyethylene terephthalate resin containing no coloring agents and which is also lower than that of a corresponding polyethylene terephthalate resin composition comprising a polyethylene terephthalate resin and carbon black. The composition is capable of forming a molded product that can elongate more than 200% and also more than two times relative to a corresponding natural polyethylene terephthalate resin containing no coloring agents.

Abstract: Charge control agent and toner for developing electrostatic images comprising such a charge control agent whose active ingredient is a calix (n) arene compound of formula I: ##STR1## wherein x+y=n; x and y each is an integer of 1 or more; n is an integer of 4-8; the x repeat units and y repeat units can be arranged in any order; R.sup.1 and R.sup.2 each is H, C.sub.1-12 alkyl, C.sub.2-12 alkenyl, C.sub.7-12 aralkyl, phenyl, C.sub.4-8 cycloalkyl, halogen, nitro, amino, alkyl- or phenyl-substituted amino, --Si(CH.sub.3).sub.3, or --SO.sub.3 H; and of the n R radicals in the --OR groups, 1 to (n-1) are H, with the remaining (n-1) to 1 being alkyl, alkenyl, phenyl, aralkyl, cycloalkyl, --COR.sup.3 ?wherein R.sup.3 is H, alkyl, alkenyl, phenyl, aralkyl, or cycloalkyl!, --Si(CH.sub.3).sub.3, --(CH.sub.2).sub.m COOR.sup.4 ?wherein R.sup.4 is H or lower alkyl and m is an integer of 1-3!, --(CH.sub.2 CH.sub.2 O).sub.

Abstract: The present invention provides .mu.-oxo-gallium phthalocyanine dimer having a novel polymorph. The .mu.-oxo-gallium phthalocyanine dimer may be applied as a charge generator for an organic photoconductive material, such as a photoreceptor of practical use and a high-gamma photoreceptor. The resulting organic photoconductive material has good stability and good electronic properties. The .mu.-oxo-gallium phthalocyanine dimer having a novel polymorph which shows diffraction peaks at a Bragg angle (2 .theta..+-.0.2.degree.) of 6.8.degree., 12.9.degree., 19.0.degree., 19.6.degree., 20.3.degree., 25.5.degree., 25.9.degree. and 26.9.degree. in an X-ray diffraction spectrum by CuK .alpha.-ray.

Abstract: The present invention provides an aqueous black ink composition for a writing board which hardly causes thickening, coagulation of the pigment, decreasing of writing density due to sedimentation, clogging in a penpoint, and break in writing. The aqueous black ink composition comprises water, the oxidized carbon black obtained by oxidizing carbon black using hypohalogenous acid and/or salt thereof, a film forming agent, and a release agent.

Abstract: The present invention provides a deodorizer consisting of the water-soluble metallophthalocyanine represented by the formula: ##STR1## wherein, "Met" is a central metal, X is an acidic group or alkali metal salt thereof, m and p are respectively an integer of from 1 to 15, and m+p is not more than 16. The deodorizer shows excellent deodorizing ability for an aldehyde-origin odor.

Abstract: An aqueous pigment ink composition comprising an oxidized carbon black obtained by wet-oxidation of a carbon black using a hypohalous acid and/or salt thereof, and a water-soluble cationic polymer or oligomer in an aqueous medium. The aqueous pigment ink composition of the present invention does not cause clogging in a nozzle when used for ink jet recording, enables smooth writing from a narrow pen tip, and provides a recorded image excellent in water resistance and light resistance and excellent in density and hue.

Abstract: Disclosed is an aqueous pigment ink composition comprising water and oxidized carbon black dispersed stably in the water, wherein said oxidized carbon black is obtained by oxidizing carbon black using hypohalous acid and/or salt thereof and wherein at least a part of an acidic group existing on the surface of said oxidized carbon black associates with an amine compound to form an ammonium salt. The aqueous pigment ink composition realizes smooth printing with ink jet nozzle, and smooth writing with fine pen tip and it has sufficient density. Further, the recorded traces obtained by using the ink composition is excellent in water resistance.

Abstract: Monoazo metal compound of formula ?I! which is excellent in charge control or charge-enhancing property, and toner for developing electrostatic images and powdery paint for electrostatic painting incorporating thereof:D.sub.3 (Met).sub.2 ?I!D is a ligand based on a monoazo compound of formula ?II! or ?III!, Met is a metal atom, and the 3 molecules of D are coordinated to the 2 atoms of Met: ##STR1## R.sup.1 -R.sup.10 and R.sup.21 -R.sup.28 are each H, halogen, nitro, alkyl or haloalkyl, aryl, aralkyl, --SO.sub.2 N(R.sup.11).sub.2 (R.sup.11 is H, alkyl, aryl, aralkyl), --N(R.sup.12).sub.2 (R.sup.12 is H, lower alkyl, aryl, aralkyl, acyl), --CONH(R.sup.13) (R.sup.13 is H, a lower alkyl, aryl, aralkyl); 2 or more of R.sup.1 -R.sup.10 and/or R.sup.21 -R.sup.28 may bind together to form an aromatic or aliphatic ring.

Abstract: Colored thermoplastic resin composition comprising a transparent thermoplastic resin and a black dye contained therein, wherein said black dye is a black dye obtained by reaction of at least one anionic surfactant selected from the group consisting of(a) sulfuric acid ester-series surfactants,(b) phosphoric acid ester-series surfactants,(c) sulfonic acid-series surfactants and(d) carboxylic acid-series surfactants, and nigrosine.

Abstract: A black polyamide resin composition comprising a polyamide resin and coloring agents, wherein nigrosine, aniline black and carbon black are contained as the coloring agents.

Abstract: A disazo dye composition comprising at least a disazo dye represented by the formula (I) and a disazo dye represented by the formula (II): ##STR1## (wherein X and Y indicate an alkoxy group having 1 to 4 carbon atoms, and M indicates hydrogen or a cation selected from the group consisting of, alkaline metal, NH.sub.4, alkyl-substituted ammonium, alkanolammonium, morpholinium and piperidinium), wherein, when the disazo dye composition is analyzed by liquid chromatography, the area ratio of the peak area (Sp) of the disazo dye represented by the formula (I) to the peak area (Sc) of the disazo dye represented by the formula (II), that is Sp:Sc is from 1:0.4 to 1:2.4. This disazo dye composition provides a high quality image, rapid ink fixing and the like even on the plain paper.

Abstract: A green or near infrared light absorbing water-soluble phthalocyanine or naphthalocyanine derivative which has excellent water resistance after dyeing, is provided. The present invention provides a phthalocyanine or naphthalocyanine derivative represented by the formula: ##STR1## wherein X represents a halogen atom substituted at nucleus; M represents two hydrogen atoms, a divalent metal atom, a trivalent mono-substituted metal atom, or a tetravalent di-substituted metal atom; m represents 4 or 8; and n represents an integer of 0 to 12.

Abstract: Toner for developing electrostatic images that comprises a binder resin, a coloring agent and a calixarene compound as a charge control agent, wherein some of the phenolic OH groups of said calixarene compound are metallized with alkali metal or alkaline earth metal.

Abstract: The present invention provides .mu.-oxo-aluminum phthalocyanine dimer having a novel polymorph. The .mu.-oxo-aluminum phthalocyanine dimer may be applied to as a charge generator for an organic photoconductive material, such as a high-gamma photoreceptor which is corresponding to a short-wavelength of light sauce (LED). The .mu.-oxo-aluminum phthalocyanine dimer having a novel polymorph which shows diffraction peaks at a Bragg angle (20.theta..+-.0.2.degree.) of 6.9.degree., 9.7.degree., 13.8.degree., 15.4.degree., 23.9.degree., and 25.9.degree. in a X-ray diffraction spectrum by CuK .alpha.-ray.