Nippon Kayaku Kabushiki Kaisha

Toppan Printing Co., Ltd.

Takaaki Kurata

Masaaki Ikeda

Kyohei Miyanaga

Daisuke Kobayashi

Takashi Yamauchi

Takafumi Fujii

Chihaya Adachi

Takashi Yoneda

Yuichiro Matsuo

Yutaka Ishii

Yoshiki Akatani

Tadayuki Kiyoyanagi

Satoshi Ohkuma

Koji Hirota

Yasuyuki Demachi

Takashi Fujii

Hayato Motohashi

Noriko Asahi

Hiroyuki Tsukui

Masahiro Naitou

Syouichi Kaneko

Junichi Segawa

Teppei Tsuchida

Tsunetoshi Egusa

The content of compound(s) having a molecular weight of 650-670, typically a molecular weight of 660, as measured by mass spectrometry, is reduced to 0.5 mass % or less in a heat-sensitive recording material comprising 3,3'-diallyl-4,4&#x2032;-dihydroxy diphenylsulfone, or in a diphenylsulfone or a color-developing agent. Provided is, thereby, a heat-sensitive recording material, a color-developing agent, or a diphenylsulfone which cause less background fogging under moisture and heat conditions and which has excellent preservation stability of a colored image.

Heat-sensitive recording material and diphenylsulfone

To provide a heat-sensitive recording material which produces images with excellent resistance to water, while producing background with resistance to heat. A heat-sensitive recording material which is characterized by containing at least one compound represented by general formula (1) as a color-developing compound: wherein, R1-R5 each independently represents a hydrogen atom, a halogen atom, a nitro group, an amino group, an alkyl group, an alkoxy group, an aryloxy group, an alkylcarbonyloxy group, an arylcarbonyloxy group, an alkylcarbonylamino group, an arylcarbonylamino group, an alkylsulfonylamino group, an arylsulfonylamino group, a monoalkylamino group, a dialkylamino group or an arylamino group.

Heat-sensitive recording material

This heat-sensitive recording material is configured to contain, as a color-developing compound, at least one compound represented by one of formulas (1)-(3): 

The present invention relates to an ultraviolet-curable adhesive to be used for laminating a first optical base material and a second optical base material having a light-shielding portion on a surface thereof to each other, the ultraviolet-curable adhesive containing (A) a specified compound represented by the following formula (1), (B) a photopolymerizable compound, and (C) a photopolymerization initiator; a cured product obtained by irradiating the adhesive with an ultraviolet ray; and an optical member having the cured product, such as a touch panel: 

Optical member and ultraviolet-curable adhesive to be used for producing the same

Disclosed is a dye-containing blue color composition for color filter, including a triarylmethane-based dye having a structure represented by the following formula (1): wherein R, R, R, R, Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a substituent, a phenyl group which may have a substituent or a benzyl group which may have a substituent, R, R, R, R, R, R, R, R, R, R, R, R, Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a substituent or a halogen atom and X represents a tristrifluoromethanesulfonylmethide anion.

Blue color composition containing dye, color filter and liquid crystal display device and organic EL display provided with the color filter

The present invention relates to an aqueous solution composition (water-based ink composition) containing a water-soluble naphthalocyanine coloring matter represented by the following formula (1): wherein, M represents a hydrogen atom, a metal atom, a metal oxide, a metal hydroxide or a metal halide, X represents a carbonyl group or a sulfonyl group, Wto Ware each independently a hydrogen atom, an ionic hydrophilic group or the like, at least one of Wto Wis a group other than a hydrogen atom, and n represents an integer number of 1 to 24, respectively, or a salt thereof, and a novel naphthalocyanine coloring matter, and said compound is useful as a near-infrared ray absorbent because it has a high absorption in the near-infrared region, and it is useful as a near-infrared ray absorbing water-based ink because it has an excellent storage stability in aqueous solution.

Water-soluble naphthalocyanine coloring matter and water-based ink containing the same

Disclosed is a near-infrared absorbing compound which does not contain antimony or arsenic, and has excellent stability, especially excellent heat resistance, light resistance and moist heat resistance. Also disclosed are a near-infrared absorbing filter, which is produced by using the near-infrared absorbing compound, and has excellent resistance such as light resistance and heat resistance, an optical filter and an optical recording medium. Specifically disclosed are a diimmonium compound represented by the formula (1) below and a near-infrared absorbing filter obtained by using such a diimmonium compound. Further specifically disclosed are a near-infrared absorbing filter wherein an adhesive layer containing the diimmonium compound is arranged on a transparent supporting body, and an optical filter using such a near-infrared absorbing filter. (In the formula (1), Rto Rindependently represent a hydrogen atom or an optionally substituted aliphatic hydrocarbon residue; Rto Rindependently represent an aliphatic hydrocarbon residue which may have a halogen atom; and rings A and B may further have a substituent).

Diimmonium compound and use thereof

The device according to the invention is a device having organic thin films containing a light-emitting layer between an anode and a cathode that emits light by application of electric energy, characterized in that the light-emitting device contains at least a compound having the basic skeleton represented by the following General Formula (1) or (2). Use of the condensed polycyclic compound according to the invention allows production of high-brightness, high-efficiency light-emitting device superior in color purity.

Light-emitting device, condensed polycyclic compound used therein and method for producing same

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Tokyo, Japan

Takaaki Kurata