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31. 发明专利

JPH02215760A NEW NAPHTHALENEDICARBONITRILE COMPOUND 失效
公开(公告)号：JPH02215760A
公开(公告)日：1990-08-28
申请号：JP3362589
申请日：1989-02-15
申请人： MITSUI TOATSU CHEMICALS , YAMAMOTO CHEMICALS INC
发明人： OGUCHI TAKAHISA , ITO NAOTO , ENOMOTO TSUYOSHI , NISHIZAWA ISAO
IPC分类号： C07C255/52 , B41M5/26 , C07C253/02 , C07C255/54 , C09B47/04
摘要： NEW MATERIAL:The compound of formula (R is 4-18C alkyl; Y to Y are H, 1-10C alkyl, halogen or 1-10C alkoxy). EXAMPLE:3-Octyl-1,2-naphthalenedicarbonitrile. USE:A raw material for dye, pigment, polymer, etc. Especially, a raw material for 1,2-naphthalocyanine pigment having high solubility and high reflectivity. PREPARATION:The compound of formula can be produced by diazotizing a 1-amino-naphthalenecarbonitrile compound with a diazotizing agent such as sodium nitrite and nitrosylsulfuric acid and subjecting the product to Sandmeyer process for cyaniding with a cyanidation agent such as cuprous cyanide, potassium cyanide or sodium cyanide.

32. 发明专利

JPH02173654A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPH02173654A
公开(公告)日：1990-07-05
申请号：JP32787488
申请日：1988-12-27
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMADA YASUYUKI , ITO NAOTO , NISHIZAWA ISAO , YAMAGUCHI TERUHIRO
IPC分类号： G03G5/06
摘要： PURPOSE:To enhance sensitivity and durability incorporating a specified disazo compound in a photosensitive layer. CONSTITUTION:The electrophotographic sensitive body superior in characteristics, such as sensitivity and durability, by incorporating one of the disazo compounds represented by formula I in the photosensitive layer formed on a conductive substrate. In formula I, A is a coupler residue.

33. 发明专利

JPH02127475A PRODUCTION OF BENZOINDOLENINE CYANINE DYESTUFF 失效
公开(公告)号：JPH02127475A
公开(公告)日：1990-05-16
申请号：JP28050688
申请日：1988-11-08
申请人： MITSUI TOATSU CHEMICALS , YAMAMOTO CHEMICALS INC
发明人： ENOMOTO TSUYOSHI , ITO NAOTO , OGUCHI TAKAHISA , NISHIZAWA ISAO
IPC分类号： C09B23/00 , C09B23/08
摘要： PURPOSE:To safely and profitably provide the subject dyestuff useful as a dye, pigment, colorant for filters or recording medium by adding a specific compound to a solution containing a specified compound, a base and a carboxylic acid anhydride at a high temperature. CONSTITUTION:A compound of formula II (Y is CH3COO or halogen ion) is added to a solution containing a compound of formula I [R is (substituted) alkyl; X is arylsulfonate ion, alkylsulfonate ion, alkoxylsulfonate ion or halogen], a base (e.g., sodium acetate) and a carboxylic acid anhydride (preferably acetic anhydride) in a range of 100 deg.C to the refluxing temperature of a solvent to provide a 6,7-benzoindolenine cyanine dyestuff of formula III.

34. 发明专利

JPH0273871A NAPHTHALOCYANINE POLYMER AND OPTICAL RECORDING MEDIUM USING THE SAME 失效
公开(公告)号：JPH0273871A
公开(公告)日：1990-03-13
申请号：JP22355788
申请日：1988-09-08
申请人： MITSUI TOATSU CHEMICALS , YAMAMOTO CHEMICALS INC
发明人： ITO NAOTO , ENOMOTO TSUYOSHI , OGUCHI TAKAHISA , NISHIZAWA ISAO
IPC分类号： B41M5/26 , C09B69/10 , G11B7/24 , G11B7/244
摘要： PURPOSE:To obtain the subject polymer, having a specific structure, good com patibility with resins or solvents and capable of providing excellent optical recording media due to small wavelength dependence of reflectance when formed into a thin film. CONSTITUTION:The objective polymer expressed by formula I [Met is Si(IV), Sn(IV), etc.; Y to Y are alkyl, amino, etc.; R and R are alkyl or aryl; P, Q, R and S are 0-6; n and m are 1-30]. The above-mentioned polymer is obtained by reacting, e.g., a compound expressed by formula II with a compound expressed by formula III and reacting the resultant compound expressed by formula IV in the presence of NH3.NaOMe in methanol, further reacting the obtained compound expressed by formula V in the presence of SiCl4 and a compound expressed by formula VI, then reacting the resultant dichloro deriva tive expressed by formula VII with NH4OH and reacting the formed diol deriva tive expressed by formula VIII with a compound expressed by the formula RR'SiCl2.

35. 发明专利

JPH024865A NEAR INFRARED RAY ABSORBER AND OPTICAL RECORDING MEDIUM USING SAID ABSORBER 失效
公开(公告)号：JPH024865A
公开(公告)日：1990-01-09
申请号：JP15215788
申请日：1988-06-22
申请人： MITSUI TOATSU CHEMICALS , YAMAMOTO CHEMICALS INC
发明人： ENOMOTO TSUYOSHI , ITO NAOTO , OGUCHI TAKAHISA , NISHIZAWA ISAO
IPC分类号： B41M5/26 , C09B47/04 , C09B47/18 , C09K3/00 , G11B7/24 , G11B7/244
摘要： NEW MATERIAL:A tetranaphthoporphyrazine compound expressed by formula I [R to R are H, (substituted) aryl or (substituted) alkyl; Met is two atoms of H, bivalent metal, mono-substituted trivalent metal, di-substituted tetravalent metal or oxymetal; k, l, m and n are 0-5] or isomer thereof. USE:A near infrared ray absorber useful as optical recording media. PREPARATION:One to four kinds of compounds expressed by formula II or III are thermally reacted with a metallic complex, e.g., oxide, halide, ionized acetic acid, sulfate or acetylacetonate salt, in the presence of a solvent, e.g., urea or chloronaphthalene.

36. 发明专利

JPH01319480A PURIFICATION OF CARBOXYLIC ACID ANHYDRIDE 失效
公开(公告)号：JPH01319480A
公开(公告)日：1989-12-25
申请号：JP15235988
申请日：1988-06-22
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , MISAWA TSUTAYOSHI
IPC分类号： C07D405/04
摘要： PURPOSE:To readily obtain the subject compound of high purity by using secondary amine as solubilizer in solvent, converting granular dicarboxylic acid anhydride as intermediate of coloring matter to amic acid in solvent, purifying to amic acid of high purity and treating with acid. CONSTITUTION:Granular dicarboxylic acid anhydride expressed by formula I (X is alkyl, halogen or H) as intermediate of dye for liquid crystal or disperse dye is treated with secondary amine expressed by formula II (R , R is 1-10C alkyl, alkoxyalkyl or hydroxyalkyl) in a solvent such as ethyl cellosolve or amyl alcohol at 10-300 deg.C for 0.5-30 hour, converted to amic acid and solubilized in solvent, filtered and the filtrate is condensed under reduced pressure and purified to amic acid of high purity, then subjected to acid treatment with hydrochloric acid or hydrobromic acid, etc., thus dicarboxylic acid anhydride of high purity expressed by formula I is obtained. As said secondary amine, n-dibutylamine, di-(methoxyethyl)amine or diethanolamine, etc., is used.

37. 发明专利

JPH01229203A FILTER PRODUCED FROM POLYIMIDE RESIN 失效
公开(公告)号：JPH01229203A
公开(公告)日：1989-09-12
申请号：JP5346588
申请日：1988-03-09
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , ENOMOTO TSUYOSHI , NISHIZAWA ISAO , OTA MASAHIRO , YAMAGUCHI TERUHIRO
IPC分类号： G02B5/20
摘要： PURPOSE:To obtain a filter having high heat resistance and high moisture resistance by using a polyimide resin having specified recurrent units. CONSTITUTION:A filter is from a polyimide resin having recurrent units expressed by formula I, wherein (n) is an integer 0-4; A is a joint group. A is, for example, a group derived from phenylene, such as 1,4-phenylene group, etc., or a group derived from naphthylene such as 1,4-naphthylene, etc. A is most preferred to be a group expressed by formula II, wherein B is a joint group derived from a phenol deriv. such as phenylene group, biphenylene group, etc.

38. 发明专利

JPS6411153A NEAR INFRARED-ABSORBING POLYMER COMPOSITION 失效
公开(公告)号：JPS6411153A
公开(公告)日：1989-01-13
申请号：JP16520887
申请日：1987-07-03
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , NISHIZAWA ISAO , SASAGAWA KATSUYOSHI
IPC分类号： C08K5/08 , C08G18/08 , C08K5/34 , C08L75/00 , C08L75/04
摘要： PURPOSE:To obtain a stable composition resistant to the peeling off and decomposition of compounded absorbent during use, by mixing a specific polyisocyanate compound with a hydroxyl-containing compound and a near infrared absorber and polymerizing the mixture. CONSTITUTION:The objective composition can be produced by polymerizing a mixture of (A) a polyisocyanate compound having m isocyanate groups (m is integer of >=2) in one molecule, (B) a compound having n thiol groups (n is integer of >=0) and l hydroxyl groups (l is integer of >=0) in one molecule and (C) a near infrared absorber. The near infrared absorber is a naphthalocyanine derivative of formula (R -R are alkyl, etc.; Met is H, transition metal, etc.).

39. 发明专利

JPS6339582B2 失效
公开(公告)号：JPS6339582B2
公开(公告)日：1988-08-05
申请号：JP11514483
申请日：1983-06-28
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , NISHIHARA MASUMI , AIGA HIROSHI
IPC分类号： C09B29/08 , C07C67/00 , C07C231/00 , C07C231/02 , C07C231/12 , C07C233/43

40. 发明专利

JPS63120768A BORON COMPOUND AND OPTICAL RECORDING MEDIUM OBTAINED USING SAID COMPOUND 失效
公开(公告)号：JPS63120768A
公开(公告)日：1988-05-25
申请号：JP26653386
申请日：1986-11-11
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO NAOTO , NAKATSUKA MASAKATSU , ENOMOTO TSUYOSHI , NISHIZAWA ISAO
IPC分类号： C09B57/00 , C09B69/02 , G03C1/72 , G11B7/24 , G11B7/244
摘要： PURPOSE:To provide an optical recording medium having excellent durability, fastness to moisture, performance and processability, having a recording layer composed of a specified boron compd. CONSTITUTION:An anionic atom of a known cationic dye is exchanged with a compd. of formula I (wherein the ring A of formula II is F- or trifluoromethyl- substd. phenyl, naphthyl or derivative group thereof) to obtain a boron compd. of formula III (Wherein Dye is a cationic color molecule). A soln. obtd. by dissolving 10 -10 mol of the boron comp.d per liter and 0-20% binder resin in a solvent (e.g., methanol) is applied to the surface of a transparent substrate (e.g., polycarbonate resin) by means of a spin coater for form a recording layer, thus obtaining an optical recording medium.

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