公开(公告)号：JPH0247668A

公开(公告)日：1990-02-16

申请号：JP19709788

申请日：1988-08-09

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: G03G9/09

Abstract: PURPOSE:To obtain an image of a bright cyan color without having fogging by incorporating a specific anthraquinone dye into a resin binder. CONSTITUTION:The dye expressed by the formula I is incorporated into the binder resin. In the formula I, R denotes a hydrogen atom, halogen atom, alkyl group, alkoxy group, alkoxy alkyl group, alkoxyalkoxy group, aralkyl group, alkoxycarbonyl group or alkylcarboxy group. The dye which is stable in the image density obtd. in continuous copying by repetitive development, does not generate fogged development and is good in the fastness of a cyan color to light, etc., is obtd. in this way.

公开(公告)号：JPH0559111A

公开(公告)日：1993-03-09

申请号：JP22202491

申请日：1991-09-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI

IPC: C07D417/04 ,  C08F2/50

Abstract: PURPOSE:To provide a photopolymerizable resin composition containing a photosensitive resin, a photopolymerization initiator and a specific biscoumarin compound as a photosensitizer, having excellent solubility to resin and storage stability and giving a photosensitive layer having excellent aging stability and sensitivity. CONSTITUTION:The objective composition having excellent characteristics as a photosensitizer contains (A) a photosensitive resin, (B) a photopolymerization initiator such as methyl ketone peroxide and (C) a biscoumarin compound of formula I [R1 and R2 are H, alkyl, etc.; R3 and R4 are H, alkoxy, etc. ; X is group of formula II (Y is alkylene or phenylene)] as a photosensitizer.

公开(公告)号：JPH02108068A

公开(公告)日：1990-04-19

申请号：JP26065288

申请日：1988-10-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: C09B1/54 ,  G03G9/09

Abstract: PURPOSE:To obtain the pigment which has excellent melting miscibility, is stable in the image densities obtd. in continuous copying by repetitive developing and has good light resistant fastness, etc., with a magenta color by incorporating a specific anthraquinone pigment into a resin binder. CONSTITUTION:The anthraquinone pigment expressed by formula I is incorporated into the binder resin. In formula I, X denotes formula II, R denotes an alkyl group, alkoxy group; n denotes 2 to 4 integer, R , R denote the same or different alkyl group, alkoxy group; l and m denote 0 to 4 integer. The pigment which has the excellent melting miscibility, is stable in the image densities obtd. in continuous copying by repetitive developing and has the good light resistant fastness, etc., with the magenta color is obtd. in this way.

公开(公告)号：JPH0251166A

公开(公告)日：1990-02-21

申请号：JP20186988

申请日：1988-08-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: G03G9/09

Abstract: PURPOSE:To obtain a yellow color toner compsn. capable of providing distinct picture images contg. no fog and having improved light fastness by incorporating a specified pyridone dye into a binder resin. CONSTITUTION:A color toner is obtd. by incorporating 0.1-10pts.wt. compd. expressed by formula I into a binder resin. In formula I, R1 is an H atom, halogen atom, alkyl group, or alkoxy group; R2 is an alkyl group, alkoxyalkyl group, or aralkyl group. By this constitution, a toner compsn. having superior miscibility in the molten state and high practical value is obtd. The toner contains a yellow dye having high light fastness which provides a stable picture image density in a continuous copy in repetitive development.

公开(公告)号：JPH02243662A

公开(公告)日：1990-09-27

申请号：JP6220389

申请日：1989-03-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KATO KIMITOSHI ,  YOSHIDA MARI

IPC: B01J23/72 ,  B01J27/122 ,  B01J31/04 ,  C07B61/00 ,  C07C221/00 ,  C07C225/22

Abstract: PURPOSE:To obtain the subject high-quality substance useful as an intermediate for vat dyes, organic photoelectric materials, etc., in high yield by subjecting a halogenobenzanthrone to amino substitution with ammonia in the presence of a copper catalyst. CONSTITUTION:A halogenobenzanthrone (preferably 3-bromo- and 3,9- dibromobenzanthrone) is reacted with ammonia at 200-210 deg.C under 5-70kg/cm pressure using a copper catalyst in an amount of 0.05-0.5pt.wt. based on 1pt.wt. halogenobenzanthrone to afford the subject substance. The ammonia is used in a molar amount of normally >=4 times based on 1mol halogenobenzanthrone and an aqueous solution of the ammonia in >=15wt.% concentration is preferably used. The aqueous ammonia is also a reaction solvent and further toluene, xylene, etc., may be mixed therewith for use. Electrolytic copper, copper oxide, copper acetate, etc., are used as the copper catalyst. The process is simplified by the aforementioned method without producing waste acids.

公开(公告)号：JPH0248676A

公开(公告)日：1990-02-19

申请号：JP19890288

申请日：1988-08-11

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: C09B1/58 ,  G03G9/09

Abstract: PURPOSE:To eliminate the fogging of the image obtd. by copying and to obtain the sharp yellow color image by incorporating the anthraquinone dye expressed by the general formula I into the binder resin of the yellow dye color toner compsn. for electrostatic charge development. CONSTITUTION:This compsn. contains the anthraquinone dye expressed by the general formula I into the binder resin of the yellow color toner. In this formula, R denotes a hydrogen atom, halogen atom, alkyl group, alkoxy group, alkoxy alkyl group, alkoxycarbonyl group or alkylcarboxy group. The dye of the excellent melt miscibility of the toner compsn. is provided and the copying is executed by the developer consisting of such compsn., by which the sharp yellow color image having no fogging is obtd.

公开(公告)号：JPH02110573A

公开(公告)日：1990-04-23

申请号：JP26271388

申请日：1988-10-20

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: C09B1/32 ,  G03G9/09

Abstract: PURPOSE:To obtain images of a bright cyan color free from fogging by incorporating a specific anthraquinone dye into a binder resin. CONSTITUTION:The dye expressed by the formula I is incorporated into the binder resin. This toner compsn. is the dye which has excellent melting miscibility, is stable in the image density obtd. in continuous copying by repetitive developing and has the good right resistant fastness of the cyan color. The production of the color toner by using the dye of this cyan color is executed by incorporating the compd. expressed by the formula I preferably at 0.1 to 10wt.% into the binder resin, by which the color toner is obtd. The images of the bright cyan color having no fogging are obtd. in this way.

公开(公告)号：JPH0251165A

公开(公告)日：1990-02-21

申请号：JP20186888

申请日：1988-08-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TAKUMA HIROSUKE ,  YOSHIDA MARI ,  MIKOTA TAMIO ,  IGATA AKITOSHI

IPC: C09B1/54 ,  G03G9/09

Abstract: PURPOSE:To obtain a distinct picture image of Magenta color contg. no fog and to improve color fastness of the picture image by incorporating a specified anthraquinone dye into a binder resin. CONSTITUTION:A color toner is obtd. by incorporating pref. 0.1-10pts.wt. compd. expressed by formula I into a binder resin. In formula I, R is an H atom, halogen atom, alkyl group, alkoxy group, alkoxyalkyl group, alkoxyalkoxy group, aralkyl group, alkoxycarbonyl group, or alkyl carboxy group. Thus, a toner compsn. having high miscibility in molten state is obtd. Its practical value is increased because the toner compsn. contains a Magenta dye having high light fastness and provides picture images having a stable image density when it is used for continuous copy in a repetitive development.