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公开(公告)号：DE3880939T2
公开(公告)日：1993-09-23
申请号：DE3880939
申请日：1988-09-13
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , KURODA SIZUO , OYAMA TSUKASA , AIGA HIROSHI
Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: wherein X is S or NH; R1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
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公开(公告)号：HK5594A
公开(公告)日：1994-01-28
申请号：HK5594
申请日：1994-01-20
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , KURODA SIZUO , OYAMA TSUKASA , AIGA HIROSHI
Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: wherein X is S or NH; R1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
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公开(公告)号：DE3880939D1
公开(公告)日：1993-06-17
申请号：DE3880939
申请日：1988-09-13
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , KURODA SIZUO , OYAMA TSUKASA , AIGA HIROSHI
Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: wherein X is S or NH; R1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
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公开(公告)号：SG116893G
公开(公告)日：1994-01-21
申请号：SG116893
申请日：1993-10-23
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , KURODA SIZUO , OYAMA TSUKASA , AIGA HIROSHI
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公开(公告)号：CA1290752C
公开(公告)日：1991-10-15
申请号：CA577340
申请日：1988-09-14
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA KEISUKE , KURODA SIZUO , OYAMA TSUKASA , AIGA HIROSHI
Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: wherein X is S or NH; R1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
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Patent Agency Ranking
公开(公告)号：JPH05229268A
公开(公告)日：1993-09-07
申请号：JP21048492
申请日：1992-08-06
Applicant: MITSUI TOATSU CHEMICALS , DAINIPPON PRINTING CO LTD
Inventor： TAKUMA HIROSUKE , SHIMOKAWA YASUSHI , MATSUZAKI YORIAKI , OYAMA TSUKASA , AIDA ISAMU , KOSHIDA HITOSHI , TAKIGUCHI RYOHEI , EGUCHI HIROSHI , KAFUKU MASAAKI , NAKAMURA MASAYUKI
Abstract: PURPOSE:To obtain a thermal transfer ink compsn. or sheet having a high sublimation speed and image stability after transfer by using a sublimable dye represented by a specific general formula as a thermal transfer recording dye. CONSTITUTION:An ink compsn. for thermal transfer recording containing a thermal transfer recording dye represented by formula I (wherein R1 is H, a 1-8C alkyl group or a cycloalkyl group, R2 is H, a halogen atom or an alkoxy group and R3 is a 3-5C branched alkyl group, an O-substituted oxycarbonyl group or an N-substituted aminocarbonyl group wherein an N-substituent may form a ring), a binder resin and an org. solvent and/or water is prepared. This ink compsn. is applied to one surface of a base sheet and dried to laminate a thermal transfer recording dye supporting layer to obtain a transfer sheet. The dye represented by the formula I is easily adapted to gradation recording and suitable for full color recording.
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公开(公告)号：JPH05202304A
公开(公告)日：1993-08-10
申请号：JP29013192
申请日：1992-10-28
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OYAMA TSUKASA , SHIMOKAWA YASUSHI , AIDA ISAMU , KOSHIDA HITOSHI , TAKUMA HIROSUKE , MATSUZAKI YORIAKI
Abstract: PURPOSE:To obtain a new compound useful for a coloring matter for heat- sensitive transfer recording, having excellent sublimation rate, image stability, storage stability, solubility, dispersibility, light resistance and fastness. CONSTITUTION:A compound of formula I (R is aryl or aryloxy; R to R are H, 1-4C alkyl or halogen; R and R are 1-4C alkyl) such as a compound of formula II. The compound of formula I is obtained by reacting a compound of formula III with a compound of formula IV. The maximum absorption wavelength of the compound in toluene is 629nm.
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8.发明专利
公开(公告)号：JPH05185752A
公开(公告)日：1993-07-27
申请号：JP20489692
申请日：1992-07-31
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KOSHIDA HITOSHI , TAKUMA HIROSUKE , AIDA ISAMU , OYAMA TSUKASA
Abstract: PURPOSE:To make stability of shelf life of coloring matter in a binder on a transfer sheet good by a method wherein a thermal transfer layer containing black coloring matter for thermal transfer recording in which orange coloring matter of a specific structure and blue coloring matter of a specific structure are mixed, is provided on a base material. CONSTITUTION:Ink is prepared by dissolving or dispersing coloring matter for thermal transfer recording wherein respective specific amounts of orange coloring matter expressed by the formula I (Ar1, Ar2, Ar3 express an aryl group) and blue coloring matter expressed by the formula II (R1, R2, R3 express a hydrogen atom, a halogen atom, a nitro group, a hydroxy group, an alkyl group, etc., and R4, R5 express an alkyl group.) are mixed, together with binder resin in an organic solvent. A thermal transfer layer is laminated by coating and drying that ink on a base material of condenser paper, a plastic film, etc., and a transfer sheet is formed. After superimposing the transfer sheet on a material to be recorded, the transfer sheet is heated and pressurized from a rear surface of the transfer sheet with a thermal recording head to transfer the coloring matter on the transfer sheet onto the material to be recorded.
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公开(公告)号：JPH05169858A
公开(公告)日：1993-07-09
申请号：JP34141391
申请日：1991-12-24
Applicant: MITSUI TOATSU CHEMICALS , DAINIPPON PRINTING CO LTD
Inventor： OYAMA TSUKASA , SHIMOKAWA YASUSHI , AIDA ISAMU , KOSHIDA HITOSHI , TAKUMA HIROSUKE , TAKIGUCHI RYOHEI , EGUCHI HIROSHI , KAFUKU MASAAKI
IPC: B41M5/392 , B41M5/385 , B41M5/388 , B41M5/39 , C09D11/00 , C09D11/02 , C09D11/023 , C09D11/033 , C09D11/037
Abstract: PURPOSE:To obtain dyestuffs and an ink composition for thermal transfer recording having high sublimating speed and excellent image stability after transfer by using dyestuffs being shown in specific chemical formula and having superior solubility to an ink solvent and the low melting point as sublimating dyestuffs for thermal transfer recording. CONSTITUTION:In a thermal transfer recording system employing sublimating dyestuffs, a transfer sheet, in which a base film is coated with sublimating dyestuffs, is used, and the transfer sheet is heated selectively by a thermal head, thus conducting transfer to recording paper. Dyestuffs shown in general formula mentioned on the right are employed as the sublimating dyestuffs at that time. In formula, R represents a hydrogen atom, a halogen atom or an alkyl group, R the hydrogen atom, the alkyl group or the halogen atom, R , R the hydrogen atom, a substituted or non-substituted alkyl group, an alkenyl group or an aralkyl group, and X, Y a hetero ring including at least one oxygen atom or nitrogen atom. The dyestuffs are kneaded with a binder resin, an organic solvent, etc., thus acquiring an ink composition for thermal transfer recording.
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10.发明专利
公开(公告)号：JPH05169853A
公开(公告)日：1993-07-09
申请号：JP34502491
申请日：1991-12-26
Applicant: MITSUI TOATSU CHEMICALS , DAINIPPON PRINTING CO LTD
Inventor： OYAMA TSUKASA , SHIMOKAWA YASUSHI , AIDA ISAMU , KOSHIDA HITOSHI , TAKUMA HIROSUKE , TAKIGUCHI RYOHEI , EGUCHI HIROSHI , KAFUKU MASAAKI
Abstract: PURPOSE:To obtain dyestuffs and an ink composition for thermal transfer recording having high sublimating speed and excellent image stability after transfer by using dyestuffs being shown in specific chemical formula and having superior solubility to an ink solvent and the low melting point as sublimating dyestuffs for thermal transfer recording. CONSTITUTION:In a thermal transfer recording system using sublimating dyestuffs, a transfer sheet, in which condenser paper, a PET FILM, etc., are coated with sublimating dyestuffs changed into ink, is employed, and the transfer sheet is heated selectively by a thermal head, thus conducting transfer to recording paper. Dyestuffs shown in general formula mentioned on the right are used as the sublimating dyestuffs at that time. In formula, R , R represent a hydrogen atom, a substituted or non-substituted alkyl group, an aryl group, an alkenyl group, a aralkyl group, R , R the hydrogen atom, an alkyl group, an alkoxy group, a substituted or non-substituted alkoxy carbonyl group, etc., and X O or NH. The dyestuffs are kneaded with a binder resin, an organic solvent, etc., thus acquiring an ink composition for thermal transfer recording.
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