公开(公告)号：JPH02163190A

公开(公告)日：1990-06-22

申请号：JP31612188

申请日：1988-12-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  MURAYAMA KAZUHIKO ,  KATO KIMITOSHI

IPC: C09K19/60 ,  C09B1/32 ,  G02F1/13

Abstract: PURPOSE:To obtain the subject novel blue dichroic coloring matter, consisting of a compound having decahydronaphthyl group-containing ester group introduced into an anthraquinone skeleton, having a high dichroic ratio and excellent in durability. CONSTITUTION:The objective dichroic coloring matter, obtained by introducing a decanaphthyl group-containing ester group of preferably a trans-form into the 2-position of an anthraquinone skeleton and expressed by the formula (R1 is H, halogen, alkyl or alkoxy; R2 and R3 are H, alkyl, aryl or aralkyl). The above-mentioned coloring matter is used in a concentration of 0.01-10wt.% (preferably 0.1-5wt.%) based on liquid crystals. The afore-mentioned coloring matter is obtained by converting 1-amino-4-bromoanthraquinone-2-carboxylic acid into an acid halide type with thionyl chloride, etc., reacting the resultant acid halide with 2-decahydronaphthols and then reacting the resultant ester compound derived therefrom with aniline substituted with amino group at the 4-position thereof.

公开(公告)号：JPH01172458A

公开(公告)日：1989-07-07

申请号：JP33016387

申请日：1987-12-28

Applicant: MITSUI TOATSU CHEMICALS

Inventor： OYAMA TSUKASA ,  KURODA SHIZUO ,  TAKUMA HIROSUKE ,  AIGA HIROSHI

IPC: G02B5/22 ,  C09B1/32 ,  C09K3/00 ,  G11B7/244

Abstract: NEW MATERIAL:An anthraquinone pigment of formula I (wherein at least one of the benzene nuclei A-D is substituted with a halogen, and the rest are substituted with a lower alkyl, a cycloalkyl, a lower alkoxyl, a trifluoromethyl, phenoxy or OH). USE:A highly pure anthraquinone pigment having absorption characteristics suitable for a near-infrared absorption filter and being suitable for a highly sensitive near-infrared absorption filter. PREPARATION:1,4,5,8-Tetrachloroanthraquinone recrystallized from a solvent such as monochlorobenzene, dichlorobenzene or nitrobenzene is reacted with at least 4mol., per mol. of the quinone, of an aniline derivative of formula II, III, IV or V at 80-170 deg.C for 5-10hr with agitation in the presence of a catalyst comprising 0.1-1mol., per mol. of the quinone, copper sulfate, 0.01-30mol. of a (substituted)benzyl alcohol and 0.1-1mol. of aliphatic carboxylic acid salt (e.g., potassium acetate).

公开(公告)号：JPS6474270A

公开(公告)日：1989-03-20

申请号：JP22982587

申请日：1987-09-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  OYAMA TSUKASA ,  AIGA HIROSHI

IPC: C09B1/26 ,  C09B1/22 ,  C09K19/60

Abstract: PURPOSE:To obtain a blue dichroic pigment for liquid crystal displays, having a high dichroic ratio and excellent durability, represented by a specified structural formula. CONSTITUTION:This dichroic pigment for liquid display is represented by formula I (wherein R1 is hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, R2 is a hydrogen atom, an alkyl group, an aryl group or an aralkyl group). The decahydronaphthyl group in formula I is preferably a trans isomer. This pigment is desirably used in a concentration of 0.1-5wt.% based on a liquid crystal.

公开(公告)号：JPS63196653A

公开(公告)日：1988-08-15

申请号：JP2740087

申请日：1987-02-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  AIGA HIROSHI

IPC: C09B3/78 ,  C08K5/00 ,  C08L101/00

Abstract: PURPOSE:To obtain a resin compsn. which efficiently condenses light and emits yellow fluorescence and has good durability, by incorporating a specified naphthacene derivative in a resin. CONSTITUTION:A resin compsn. comprising at least one compd. of the formula (wherein R1, R2, R3 and R4 are each (substd.)phenyl or naphthyl; R5 is H, an alkyl or an alkoxy). Examples of the compd. are 9,10,11,12-tetraphenylnaphth acene(rubrene), 9,11-dinaphthyl-10,12-diphenylnaphthacene, 2,6-diethyl-9,10,11,12- tetra(p-methoxyphenyl)naphthacene, etc. Resins which are optically transparent can be used. Examples thereof are polyvinyl butyral, bisallyl carbonate resins, polyesters, polystyrene, etc.

公开(公告)号：JPS63191884A

公开(公告)日：1988-08-09

申请号：JP2183787

申请日：1987-02-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  AIGA HIROSHI ,  SAITO SUGURU ,  MATSUO HIROSHI

IPC: C09K9/02 ,  C09K11/06

Abstract: PURPOSE:To provide the title compsn. which is transparent and colorless under usual light, emits bright red light upon being exposed to UV rays, has no effect on the human body through absorption of the UV rays, and has high durability and which comprises an Eu complex having a benzoyltrifluoroacetone ligand. CONSTITUTION:A resin compsn. comprising an Eu complex containing a benzoyltrifluoroacetone ligand of the formula (wherein R1 and R2 are each H, halogen, alkyl, alkoxy, amino, dialkylamino, alkylamino, aryl, or aralkyl; and A is an org. or inorg. ammonium, pyridinium, or phosphonium or a metallic cation). Although this resin compsn. is transparent and colorless under usual light, it emits bright red light upon being exposed to UV rays, has no effect on the human body because it can absorb the UV rays, and can suppress the deterioration of the resin, which renders the compsn. suitable for use in toys, stage and interior decorations, show windows, etc.

公开(公告)号：JPS63191870A

公开(公告)日：1988-08-09

申请号：JP2183687

申请日：1987-02-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  AIGA HIROSHI ,  SAITO SUGURU ,  MATSUO HIROSHI

IPC: C09D11/00

Abstract: PURPOSE:To provide the title ink compsn. which gives print and record which cannot be recognized under normal light and emit clear red light by irradiation with ultraviolet light, containing a europium complex having a benzoyltrifluoroacetone ligand. CONSTITUTION:A compd. of the formula (wherein R1 and R2 are each H, halogen, an alkyl, an alkoxy, amino, a dialkylamino, an alkylamino, an aryl or an aralkyl; A is an org. or inorg. ammonium cation, a pyridinium cation, a phosphonium cation or a metal cation) is prepd. The compd. is incorporated in a varnish for ink to obtain a desired luminescent ink compsn. An example of the compd. of the formula is piperidium tetra(benzoyltrifluoroacetone) europium complex. The compd. is used in an amount of 0.001-10wt.% based on the ink compsn.

公开(公告)号：JPS63175073A

公开(公告)日：1988-07-19

申请号：JP500287

申请日：1987-01-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  IGATA AKITOSHI ,  KURODA SHIZUO ,  AIGA HIROSHI

IPC: C09K19/60 ,  C09B1/50

Abstract: NEW MATERIAL:A compound of formula I [R1 and R2 are each alkyl, (substituted)phenyl, cyclohexyl or aralkyl; n is integer 2-10]. EXAMPLE:1,5-Diamino-4,8-dihydroxy-7-(2-phenoxy)ethoxy-2-(4-n-octyl)phenyl anth raquinone. USE:Dichromatic coloring matters, liquid crystals for display device. PREPARATION:For example, a 1,5-diamino-4,8-dihydroxyanthraquinone disulfonic acid compound of formula II is allowed to react with a phenyl ether to form a compound of formula III followed by reaction of this compound with an omega-R1-oxyalkanol of formula R1O(CH2)nOH in the presence of a base such as potassium hydroxide, thus obtaining the objective compound of the formula I.

公开(公告)号：JPS5615252A

公开(公告)日：1981-02-14

申请号：JP8978079

申请日：1979-07-17

Applicant: MITSUI TOATSU CHEMICALS

Inventor： NAKAMURA KATSUJI ,  KURODA SHIZUO ,  YOSHIURA KOUICHI ,  ISHIBASHI MASAAKI ,  TANAKA TAKASUMI ,  WATANABE TETSUO

IPC: C09B1/48 ,  C07C225/34 ,  C07C233/33 ,  C07C233/43

Abstract: PURPOSE:To prepare the titled compound in high qualities, smoothly, by heating on aminoanthraquinone and a halogenoanthraquinone or a halogenobenzanthrone in an aqueous solvent containing an inert organic solvent in the presence of a catalyst, etc., under pressure. CONSTITUTION:The titled compound is prepared by condensing (A) an aminoanthraquinone (which may be substituted with halogen, amino, acylamino, alkyl, or alkoxy) with (B) a halogenoanthraquinone (which may be substituted with halogen, amino, acylamino, alkyl, or alkoxy) or a halogenobenzanthrone (which may be substituted with halogen), in an aqueous solvent containing an inert organic solvent (e.g. nitrobenzene) in the presence of a copper catalyst (e.g. copper powder, copper acetate, etc). and an acid acceptor (e.g. Na2CO3), under pressure at 170- 250 deg.C. USE:Raw material of dyes.

公开(公告)号：JP2574143B2

公开(公告)日：1997-01-22

申请号：JP21036995

申请日：1995-08-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  KURODA SHIZUO ,  NAGAYOSHI TATSUYA ,  AIGA HIROSHI

IPC: C09K11/06 ,  C07F5/00 ,  C08K5/45 ,  C08L101/00 ,  C09D5/22 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033

公开(公告)号：JPH07267942A

公开(公告)日：1995-10-17

申请号：JP6245894

申请日：1994-03-31

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  NUKII YASUHIRO ,  KURODA SHIZUO

IPC: G03F7/031 ,  C07D311/16 ,  C07D311/18 ,  C07D491/052 ,  C07D491/16 ,  C08F2/50

Abstract: PURPOSE:To provide a new bis[3-(4-substituted coumaryl)]ketone compound having high sensitivity to visible light and excellent storage stability and solubility in resin and useful as a photosensitizer for information recording field, etc. CONSTITUTION:This ketone compound is expressed by formula I [R1 and R2 each is H, an (alkoxy)alkyl, an alkenyl, a hydroxyalkyl, an aralkyl, etc.; R3 is H, an (alkoxy)alkyl, a hydroxyalkyl, a halogenoalkyl, OH, sulfonic acid group, a halogen, etc.; R4 is a (cyclo)alkoxy, OH, an aryloxy, an alkenyloxy, etc.], e.g. bis[3-(4-ethoxycarbonyl-7-diethylaminocoumaryl) ]ketone. The compound of formula I can be produced by reacting a compound of formula II with ethyl acetonedicarboxylate, cyanating the resultant compound of formula III to obtain a compound of formula IV, carboxylating the cyano group of the compound and reacting the product with alcohols, amino compounds, alkyl halides, various tosylates, etc.