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1. 发明专利

JPH11227337A NEW HEAT-SENSITIVE COLOR DEVELOPER, AND MATERIAL FOR HEAT-SENSITIVE RECORDING 失效
公开(公告)号：JPH11227337A
公开(公告)日：1999-08-24
申请号：JP3633598
申请日：1998-02-18
申请人： ASAHI CHEMICAL IND
发明人： IWAYA TETSUO , KABASHIMA KAZUO
IPC分类号： B41M5/337 , B41M5/26 , B41M5/30 , B41M5/323 , C09B67/44
摘要： PROBLEM TO BE SOLVED: To improve the image preserving property, and the color developing sensitivity by a method wherein in a heat-sensitive color developer which is used for a material for heat-sensitive recording, an isocyanate compound, a colorless or pale colored electron donative dye precursor, and a hydroxyl group- containing heterocyclic compound are contained. SOLUTION: In a heat-sensitive color developer for a heat-sensitive recording material which is used for a heat-sensitive recording method, an isocyanate compound, a colorless or pale colored electron donative dye precursor, and a hydroxyl group-containing heterocyclic compound are contained. The isocyanate compound which is used in this case, is an isocyanate adduct compound of which the melting point is 40 deg.C or higher, and for such an isocyanate adduct compound, preferably, those which are represented by formulas I, II are used. In the formulas, (m) indicates an integer of 0-5, and (n) indicates an integer of 1-2. Also, hydrogen atom of a benzene ring may be replaced by an aromatic compound residue, or an aliphatic compound residue or a heterocyclic compound residue, X1 , X2 indicate -SO2 -, -O- or the like.

2. 发明专利

JPH08175018A THERMAL COLOR FORMER AND THERMAL RECORDING SHEET 失效
公开(公告)号：JPH08175018A
公开(公告)日：1996-07-09
申请号：JP31718494
申请日：1994-12-20
申请人： ASAHI CHEMICAL IND
发明人： TANAKA MIGAKU , KABASHIMA KAZUO
IPC分类号： B41M5/323 , B41M5/30
摘要： PURPOSE: To impart excellent image preservability, to show a developable hue from orange to red and to enable multi-coloration by using a thermal agent based on a specific imino compd. and a specific aromatic isocyanate compd. CONSTITUTION: The thermal agent contained in the color forming layer provided on the support of a thermal recording sheet is based on an imino compd. represented by formula I (A is C=O or C=NH, X is a substituent of which the σ-value of Hammet is +0.2 or less and n is an integer of 1-4) and an aromatic isocyanate compd. represented by formula II (Z is -CH2 -, -CHR-, -C- or -NH-, X1 and X2 are halogen, an alkyl group, an aryl group or an alkoxyl group and a1 -c2 are an integer and satisfy specific relation). By using this imino compd., excellent image preservability is imparted and it is possible to express a hue from orange to red and multi-coloration can be realized.

3. 发明专利

JPH08169185A THERMOSENSITIVE COLOR COUPLER AND THERMOSENSITIVE RECORDING MATERIAL 失效
公开(公告)号：JPH08169185A
公开(公告)日：1996-07-02
申请号：JP31359894
申请日：1994-12-16
申请人： ASAHI CHEMICAL IND
发明人： TANAKA MIGAKU , KABASHIMA KAZUO
IPC分类号： B41M5/323 , B41M5/30
摘要： PURPOSE: To make multicoloration possible in addition to a known chromogenic system ranging from yellow to red which has high image preservability and gives color development by constituting a heat sensitizer of an imino compound and an aromatic isocyanate compound shown respectively by specific formulae as main components. CONSTITUTION: A heat sensitizer is constituted of an imino compound shown by formula I and an aromatic isocyanate compound by formula II. In the formula I, A is C=O or C=NH; X is a substituent with Hammett's σ value (para) is +0.2 or less; and n is an integer of 1-4, if n is 2 or more, X may different from each other. On the other hand, in the formula II, X is halogen, an alkyl group, N,N-dialkylamino group, etc.; a-c is an integer to meet the following relationship; 1

4. 发明专利

JPH08169184A THERMOSENSITIVE COLOR COUPLER AND THERMOSENSITIVE RECORDING SHEET 失效
公开(公告)号：JPH08169184A
公开(公告)日：1996-07-02
申请号：JP31359794
申请日：1994-12-16
申请人： ASAHI CHEMICAL IND
发明人： TANAKA MIGAKU , KABASHIMA KAZUO
IPC分类号： B41M5/323 , B41M5/30
摘要： PURPOSE: To obtain a heat sensitizer which attains multicoloration in addition to a known chromogenic system ranging from orange to red as developable colors with outstanding image preservability by constituting the heat sensitizer of an imino compound and an aromatic isocyanate compound shown respectively by specific formulae as main components. CONSTITUTION: This heat sensitizer is composed mainly of an imino compound shown by formula I and an aromatic isocyanate compound shown by formula II. In the formula I, A is C=O or C=NH; X is a substituent with Hammett's σvalue (para) is +0.2 or less; and n is an integer of 1-4, if n is 2 or more, X may be different from each other. On the other hand, in the formula II, X is halogen, an alkyl group, an aryl group, N,N-dialkylamino group. Further, a-c each is an integer to meet the following relationship; 1

5. 发明专利

JPH08157453A IMINO COMPOUND COMPOSITION 失效
公开(公告)号：JPH08157453A
公开(公告)日：1996-06-18
申请号：JP30604894
申请日：1994-12-09
申请人： ASAHI CHEMICAL IND
发明人： TANAKA MIGAKU , KABASHIMA KAZUO
IPC分类号： B41M5/323 , B41M5/132 , B41M5/26 , B41M5/30 , C07D209/44 , C07D245/04
摘要： PURPOSE: To obtain the subject composition reduced in the discoloration due to solar light, fluorescent lamp light, etc., and useful as a raw material for heat-resistant pigments, a heat-sensitive coloring agent, etc., by reducing a specific photocoloration-causing substance contained in 4,5,6,7-tetrachloro-1,3- diiminoisoindolenine to

6. 发明专利

JPH07101926A AROMATIC DIISOCYANATE AND ITS PRODUCTION 失效
公开(公告)号：JPH07101926A
公开(公告)日：1995-04-18
申请号：JP24716793
申请日：1993-10-01
申请人： ASAHI CHEMICAL IND
发明人： KABASHIMA KAZUO
IPC分类号： C07C263/10 , C07C265/12
摘要： PURPOSE:To provide a new aromatic diisocyanate having low toxicity owing to extremely low vapor pressure at normal temperature, exhibiting high stability and useful as a raw material for heat-sensitive recording material, a raw material for coloring pigment, a raw material for polyurethpne resin and polyurea resin, etc. CONSTITUTION:4,4''-Diisocyanato-2,5-dimethoxytriphenylamine expressed by the formula I. The compound of the formula I can be produced either by directly reacting 4',4''-diamino-2,5-dimethoxytriphenylamine of formula II with phosgene or by suspending or dissolving e.g. the hydrochloric acid salt of the triphenylamine of the formula II in an inert reaction solvent and reacting with phosgene. The isocyanate of the formula I can be used e.g. as a heat-sensitive color-developing agent to be used as a raw material for a heat-sensitive recording material. An excellent heat-sensitive recording paper can be produced by dispersing or coating the compound. A polyurethane resin or a polyurea resin produced by using the compound of the formula I as a raw material can be used as a foamed material, elastic material, synthetic leather, coating material adhesive, sealant, film, etc.

7. 发明专利

JPH068632A THERMAL AGENT 失效
公开(公告)号：JPH068632A
公开(公告)日：1994-01-18
申请号：JP16903092
申请日：1992-06-26
申请人： ASAHI CHEMICAL IND
发明人： NANAUMI MASAAKI , KABASHIMA KAZUO
IPC分类号： B41M5/323 , B41M5/26 , B41M5/30
摘要： PURPOSE:To provide a thermal agent for producing a thermal recording material excellent in image preservability and the yellowing resistance due to the light of a background. CONSTITUTION:The content of the aromatic urea compd. in a thermal agent mainly composed of an aromatic isocyanate compd. is set to 20wt.% or less and the average particle size of the thermal agent is set to 3mum or less. By this constitution, the yellowing properties against the light of the background of a thermal recording material are reduced.

8. 发明专利

JPH0516422B2 失效
公开(公告)号：JPH0516422B2
公开(公告)日：1993-03-04
申请号：JP3459085
申请日：1985-02-25
申请人： ASAHI CHEMICAL IND
发明人： KABASHIMA KAZUO , KITAOKA ATSUSHI
IPC分类号： C07C265/12 , C07C67/00 , C07C241/00 , C07C263/10

9. 发明专利

JPH0377073B2 失效
公开(公告)号：JPH0377073B2
公开(公告)日：1991-12-09
申请号：JP1970583
申请日：1983-02-10
申请人： ASAHI CHEMICAL IND
发明人： KABASHIMA KAZUO , KITAOKA ATSUSHI
IPC分类号： B41M5/28 , B41M5/132 , B41M5/30 , B41M5/337

10. 发明专利

JPS6433556A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS6433556A
公开(公告)日：1989-02-03
申请号：JP9671488
申请日：1988-04-21
申请人： ASAHI CHEMICAL IND
发明人： KABASHIMA KAZUO , KOBAYASHI YUTAKA
IPC分类号： C09B23/00 , C07C211/21 , C09B55/00 , G03G5/06
摘要： PURPOSE:To allow a sensitive body to withstand repeated use over a long period by incorporating a specified enamine compd. as an electric charge transferring agent into the photosensitive layer formed on the electrically conductive support. CONSTITUTION:A sensitive body having superior sensitivity and durability is obtd. by using an enamine compd. represented by formula I in an electric charge transferring layer. In formula I, each of R1-R5 is optionally substd. alkyl, aralkyl, aryl or an arom. heterocyclic residue, R1 and R2 may form a ring, one of R3 and R4 may be H and R5 may be H. A concrete example of the compd. represented by formula I is represented by formula I-1.

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