Nippon Shokubai Co., Ltd.

Nippon Shobukai Co., Ltd.

Kiyoshi Masuda

Osamu Kaieda

Masunori Kitao

Minoru Aoki

Yukie Tamaura

Yasunori Okumura

Nobuhisa Noda

Takahiro Aoyama

Takashi Yodoshi

Toshifumi Nishida

Kouichi Hirota

Yukihide Hashimoto

Chie Tateyama

Hideki Ito

Yukihide Kobe-Okamoto Building No 3 Hashimoto

This invention relates to a method for the production of a halogen-containing phthalocyaline compound by the cyclization of phthalonitrile compounds either singly or in combination with a metal compound, characterized in effecting the cyclization in an organic compound having a hydroxyl group and/or a carboxylic acid in an amount in the range of 0.01-10 mass parts per one mass part of the phthalonitrile compounds while continuing the introduction of an inert gas. This method, by using a solvent capable of serving as a specific oxygen source destined to participate in the reaction of complexing a metal compound introduced into a phthalocyanine dye, permits the production of a phthalocyanine compound inexpensively in a high yield.

Method for production of halogen-containing phthalocyanine compound

A phthalocyanine compound (1) of a specific structure excelling in ability to absorb near infrared, ability to effect selective absorption of near infrared radiation particularly in a wavelength range exceeding 920 nm and falling short of 1050 nm, solubility in a solvent as well, compatibility with resin, and in such characteristic properties as heat resistance, light resistance, and weatherability, and a near infrared absorbing filter characterized by using the phthalocyanine compound (1) and phthalocyanine compound (2) having a maximum absorption wavelength at least in the range of 800&#x2013;920 nm are provided. It enjoys a long service life and permits extensive use without selecting a substrate.

Phthalocyanine compound, method for production thereof, and near infrared absorbing dye and near infrared absorbing filter using same

The present invention is directed to a near-infrared absorbing coat film comprising a near-infrared absorbing dye having a maximum absorption wavelength of 780 nm to 1200 nm, which has a residual near-infrared absorbing capacity of not less than 50% after 48 hours of light irradiation in an accelerated weathering test using a UV Auto Fade Meter.

Near-infrared absorbing coat film and near-infrared absorbing resin composition

A phthalocyanine compound is provided which exhibits particularly high transmittance to a visible ray, offers a highly efficient cut of a near infrared ray, excels in the ability to effect selective absorption in a near infrared region, excels in the solubility in a solvent, excels in the compatibility with a resin, and excels in heat resistance, light resistance, and weatherability, a method for the production thereof, a near infrared absorbable dye using the same, and a heat ray shielding material, a plasma display grade filter and a near infrared absorbable material formed thereof. The phthalocyanine compound of this invention is represented by the following formula (1):

Phthalocyanine compound, method for production thereof, and near infrared absorption dye using the compound

A phthalocyanine compound possessing an excellent ability to absorb near infrared ray, exhibiting excellent compatibility with resin, and excelling in such special qualities as heat resistance, light resistance, and resistance to weather conditions is provided. This phthalocyanine compound is represented by the following general formula (1) ##STR1## wherein Z.sub.2, Z.sub.3, Z.sub.6, Z.sub.7, Z.sub.10, Z.sub.11, Z.sub.14, and Z.sub.15 are independently SR.sup.1, OR.sup.2, or a fluorine atom, and at least one of them is for SR.sup.1 or OR.sup.2, Z.sub.1, Z.sub.4, Z.sub.5, Z.sub.8, Z.sub.9, Z.sub.12, Z.sub.13, and Z.sub.16 independently stand for NHR.sup.3, SR.sup.1, OR.sup.2, or a fluorine atom and at least one of them is NHR.sup.3, at least one of Z.sub.1 to Z.sub.16 is a fluorine atom or OR.sup.2, R.sup.1, R.sup.2, and R.sup.3 are independently a substituted or non-substituted phenyl group, a substituted or non-substituted aralkyl group, or a substituted or non-substituted alkyl group of 1 to 20 carbon atoms, and M is for a nonmetal, a metal, a metal oxide, or a metal halide.

Phthalocyanine compound, method for production thereof, and use thereof

A phthalocyanine compound of a structural formula of phthalocyanine represented by the general formula (1): ##STR1## wherein 1 to 8 of a total 16 positions are substituted with a phenoxy group, the phenoxy group at either of the ortho positions is substituted with an aryl group which may be substituted, all the atoms in the aryl group and the substituents at the residual ortho positions excluding the hydrogen atoms assume a total atomic radius of not less than 6.0 .ANG., and a central atom group M contains a metal atom of not less than trivalence, a bromine-substituent of the compound, a phthalocyanine composition comprising the phthalocyanine compound and the bromine atom-containing phthalocyanine compound, and an optical recording medium containing it in a recording layer.

Phthalocyanine compounds, process for preparing the same, and optical

A photosensitive resin coloring composition for use in a color filter containing a resin and a dye. The dye is manufactured with one member selected from the class consisting of a combination of (A)+(B) groups, a combination of (A)+(C) groups, a combination of (B)+(C) groups, and a combination of (A)+(B)+(C) groups, wherein (A) represents a group of quinizarine compounds, (B) represents a group of anthraquinone compounds, and (C) represents a group of phthalocyanine compounds.

Color filter grade photosensitive resin coloring composition and color

This invention is to provide a novel quinizarin compound which has a quinizarin structure represented by a following formula (1) having one to four of the 5, 6, 7, and 8 positions and at least either the 6 or 7 position formed of at least one member selected from the class consisting of secondary amino groups, alkylthio groups, and optionally substituted phenylthio groups, and having the remaining positions thereof formed of at least one member selected from the class consisting of hydrogen atom, halogen atoms, amino group, hydroxy group, alkoxy groups, and optionally substituted phenoxy groups, a method for the production thereof, and a dye, an electrophotographic grade color toner composition, a thermal-transfer recording sheet, an optical recording medium, an ink jet grade ink composition and a color filter severally comprising the quinizarin compound. ##STR1##

Quinizarin compound, method for production thereof, and use therefor

An electrophotographic plate-making quality matrix plate provided on an electroconductive substrate thereof with a photosensitive layer formed of an alkali-soluble binder resin containing an organic photoelectroconductive compound, which matric plate is characterized by the fact that said organic photoelectroconductive compound is a zinc phthalocyanine represented by the general formula I: ##STR1## wherein R is a --SZ group (where Z is a phenyl group, a phenyl group substituted with an alkyl group of 1 to 5 carbon atoms, or a naphthyl group), and said binder resin is a copolymer obtained by polymerizing a monomer mixture comprising (a) at least one compound selected from the group consisting of hydroxyalkyl acrylates and hydroxyalkyl methacrylates, (b) at least one copolymerizable unsaturated carboxylic acid, (c) at least one styrene compound, and (d) at least one compound selected from among acrylic esters other than said hydroxyalkyl acryaltes of (a).

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Ushiku, Japan

Kiyoshi Masuda