公开(公告)号：JP2001051452A

公开(公告)日：2001-02-23

申请号：JP22476099

申请日：1999-08-09

Applicant: MITSUI CHEMICALS INC

Inventor： NARUSE HIROSHI ,  ITO NAOTO ,  WADA MASARU ,  KUSUMOTO MASAHIKO

IPC: G03G9/097

Abstract: PROBLEM TO BE SOLVED: To attain stable electrostatic charge characteristics even under a high temp. and a high humidity by using a specific compound. SOLUTION: An electrostatic charge control agent for a electrostatic charge image developing toner uses a compound expressed by the formula. In the formula, each of R1-R5 is independently a hydrogen atom, a (substituted) alkyl group, a (substituted) aryl group, a (substituted) aralkyl group or a halogen atom. Each of R1-R5 is preferably a hydrogen atom, a methyl group, an ethyl group, an isopropyl group, a butyl group, an isobutyl group, a fluorine atom, a chlorine atom, a bromine atom or the like and more preferably a hydrogen atom, a 1-4C alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, a cyclohexyl group, a benzyl group, a phenyl group and, in particular, at least one of R1-R5 is preferably a methyl group or an ethyl group.

公开(公告)号：JP2000345067A

公开(公告)日：2000-12-12

申请号：JP15588599

申请日：1999-06-03

Applicant: MITSUI CHEMICALS INC

Inventor： NISHIMURA TAKESHI ,  WADA MASARU ,  NAKATSUKA MASAKATSU ,  TANABE YOSHIMITSU ,  KIDA JOTARO

IPC: B41M5/28 ,  B41M5/26 ,  B41M5/30 ,  B41M5/333 ,  B41M5/337 ,  B41M5/42 ,  C09B11/28 ,  C09B67/42

Abstract: PROBLEM TO BE SOLVED: To provide a thermal recording material which is excellent in coloring sensitivity and in storage stabilty of colored image by using a developer composition prepared by compounding a sulfonamide derivative having a phenolic hydroxy group with a sulfonic ester derivative having an amino group or a sulfonamide derivative having a sulfonic ester group. SOLUTION: This developer composition is prepared by compounding 100 pts.wt. compound of formula I with 0.01-10 pts.wt. ingredient comprising a compound of formula II and/or a compound of formula III. In the formulas, X1 to X3 are each H, a halogen, alkyl, alkoxy, or hydroxyl; and R1 to R5, R11 to R15, and R31 to R35 are each H, a halogen, alkyl, alkoxy, or aryl provided that two adjacent groups selectd from among combinations of R1 with R2, R2 with R3, R11 with R12, R12 with R13, R21 with R22, R22 with R23, R31 with R32, and R32 with R33 may be bonded to each other to form, together with carbon atoms to which they are bonded, a carbocyclic aromatic ring. The composition is incorporated into an electron-accepting compound contained in a thermal recording layer formed on a substrate.

公开(公告)号：JP2000256278A

公开(公告)日：2000-09-19

申请号：JP6572699

申请日：1999-03-12

Applicant: MITSUI CHEMICALS INC

Inventor： NISHIMURA TAKESHI ,  TAKEDA FUMINORI ,  WADA MASARU

IPC: B01J23/44 ,  B01J23/96 ,  B01J38/64 ,  C07B61/00 ,  C07C209/26 ,  C07C209/36 ,  C07C211/48 ,  C07C227/18 ,  C07C229/60

Abstract: PROBLEM TO BE SOLVED: To provide an industrially useful method in producing an N- alkylaromatic amino compound by a reductive alkylation reaction of an aromatic amino compound by reusing a noble catalyst so as to advance the reaction in an extremely short time in a high yield. SOLUTION: In a method for producing an N-alkyl-substituted aromatic amino compound by reacting an aromatic amino compound or an aromatic nitro compound with an aldehyde compound and hydrogen in a solvent in the presence of a noble metal catalyst, the noble metal catalyst filtered and recovered after the reaction is over is washed with alkali water and reused. Preferably the aromatic amino compound or the aromatic nitro compound is reacted with the aldehyde compound in a batch.

公开(公告)号：JP2000256277A

公开(公告)日：2000-09-19

申请号：JP6106499

申请日：1999-03-09

Applicant: MITSUI CHEMICALS INC

Inventor： TAKEDA FUMINORI ,  NISHIMURA TAKESHI ,  WADA MASARU

IPC: C07C209/26 ,  C07B61/00 ,  C07C211/48 ,  C07C211/52 ,  C07C213/00 ,  C07C215/74 ,  C07C217/78 ,  C07C221/00 ,  C07C225/22 ,  C07C227/18 ,  C07C229/54 ,  C07C229/60 ,  C07C303/22 ,  C07C309/45

Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as an intermediate for dye, coloring matter, pigment, etc. by reacting an aromatic amino compound with an aldehyde compound and hydrogen in a solvent in the presence of a noble metal catalyst so as to advance the reaction in a short time in a high yield. SOLUTION: An aromatic primary and/or secondary amino compound (preferably 3-aminobenzoic acid) is reacted with an aldehyde compound and hydrogen in a solvent (e.g. water, methanol, etc.), in the presence of a noble metal catalyst (e.g. palladium/carbon supported catalyst, etc.), to give the objective compound (preferably 3-dimethylaminobenzoic acid). The reaction is carried out by successively feeding the aromatic primary and/or secondary amino compound and the aldehyde compound. The reaction is performed under 2-5 kg/cm2 at 40-60 deg.C. The total amount of the solvent used is 4-10 times as much as the total amount of the aromatic primary and/or secondary amino compound used. The total amount of the noble metal catalyst used is preferably 0.03-0.12 wt.% calculated as a metal atom.

公开(公告)号：JP2000136167A

公开(公告)日：2000-05-16

申请号：JP30767798

申请日：1998-10-28

Applicant: MITSUI CHEMICALS INC

Inventor： NARUSE HIROSHI ,  WADA MASARU

IPC: B01J21/18 ,  C07B61/00 ,  C07C209/60 ,  C07C209/78 ,  C07C211/54

Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound as a new starburst-type amine with high heat resistance and low ionization potential. SOLUTION: This new compound is a compound of formula I (R1 and R2 are each H or an alkyl), e.g. N,N,N',N'- 4,4',4",4'''-tetras[N-(2-methylphenyl)-N- phenylamino]phenyl}-1,4-diaminobenzene. The compound of formula I (for example, when R is H or a 3-methyl group) is obtained by reaction of an N,N,N',N '-(4,4',4",4'''-tetrakisarylaminophenyl)-1,4-diaminobenzene with a cyclohexanone compound of formula III (e.g. cyclohexanone, methylcyclohexanone) in the presence of a hydrogen-transfer catalyst.

公开(公告)号：JP2000095739A

公开(公告)日：2000-04-04

申请号：JP27362098

申请日：1998-09-28

Applicant: MITSUI CHEMICALS INC

Inventor： NISHIMURA TAKESHI ,  TAKEDA FUMINORI ,  WADA MASARU ,  KANEMURA YOSHINOBU

IPC: C07C227/18 ,  C07C229/54

Abstract: PROBLEM TO BE SOLVED: To provide an industrially useful method for producing an N-alkyl substituted aromatic amino compound by which the reaction proceeds in high yield and in an ultrashort reactional time. SOLUTION: An aromatic amino compound is collectively reacted with an aldehyde compound at a temperature within the range of 20-70 deg.C in a method for reacting the aromatic amino compound with the aldehyde compound and hydrogen in the coexistence of an organic solvent and producing an N-alkyl substituted aromatic amino compound.

公开(公告)号：JP2000095721A

公开(公告)日：2000-04-04

申请号：JP27361898

申请日：1998-09-28

Applicant: MITSUI CHEMICALS INC

Inventor： NAGATOMO AKINORI ,  WADA MASARU

IPC: A61K8/30 ,  A61K8/00 ,  A61K8/33 ,  A61Q19/02 ,  C07C37/00 ,  C07C37/055 ,  C07C39/16 ,  C07C41/18 ,  C07C43/205 ,  C07C43/23 ,  A61K7/00

Abstract: PROBLEM TO BE SOLVED: To provide a new hydrochalcone derivative having high tyrosinase inhibiting activity, high safety to the skin, excellent storage stability even in a state compounded to various cosmetics and excellent ultraviolet absorbing property, etc. SOLUTION: The objective compound is expressed by formula I [R1 to R4 are each H, a 1-20C alkyl, an alkenyl or a (substituted)benzyl], e.g. 1-(2,4- dihydroxyphenyl)-3-(2,4-dimethoxyphenyl)propane of formula II. The compound of formula I can be produced by subjecting a chalcone derivative of formula III [R5 to R8 are each H, a 1-20C alkyl, an alkenyl, an acyl or a (substituted) benzyl] [e.g. 1,3-bis(2,4-dimethoxyphenyl)-2-propen-1-one] to catalytic hydrogenative reduction or catalytic hydrogenative reduction and deprotection preferably at 0-100 deg.C. The objective cosmetic can be produced by including the compound of formula I in an amount of 0.0001-30 wt.%.

公开(公告)号：JP2000063357A

公开(公告)日：2000-02-29

申请号：JP23312498

申请日：1998-08-19

Applicant: MITSUI CHEMICALS INC

Inventor： MIZUTA HIDEKI ,  WADA MASARU ,  NAGATA TERUYUKI

IPC: C07D233/34

Abstract: PROBLEM TO BE SOLVED: To obtain an extremely high-purity dialkyl imidazolidinone in high yield by adding an acid to a byproduct-contg. dialkyl imidazolidinone followed by distillation to effect easy elimination of byproducts. SOLUTION: This 1,3-dialkyl-2-imidazolidinone of formula III is obtained in high purity and yield by reaction of urea with an N,N'-dialkyl ethylenediamine of formula I (R is a 1-4C alkyl) followed by adding an acid (pref. isocyanuric acid) to the resultant reaction liquor and then performing a distillation pref. under reduced pressures to eliminate a 1,3-dialkyl-2- imidazolidineimine. For example, a reaction vessel is charged with N,N'-dimethyl ethylenediamine, urea and 1,3-dimethyl-2-imidazolidinone (hereafter, abbreviated as DMI) as solvent followed by conducting a reaction at 210 deg.C for 3 h, isocyanuric acid is then added to the resultant reaction liquor followed by agitation at 140-150 deg.C for one hour and then conducting a distillation at 20 mmHg to obtain 99.95%-purity DMI.

公开(公告)号：JPH11171991A

公开(公告)日：1999-06-29

申请号：JP34685597

申请日：1997-12-16

Applicant: MITSUI CHEMICALS INC

Inventor： NAGATOMO AKINORI ,  WADA MASARU ,  SUKEGAWA MAKOTO

IPC: C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a cross-linked polyaspartic acid- based resin having high water-absorption properties in high productivity and with excellent operability. SOLUTION: This method for producing a cross-linked polyaspartic acid based resin comprises adding an internal cross-linking agent to a solution obtained by dissolving a polysuccinimide in a good solvent to carrying out a cross-linking, inserting a disperser to the obtained material to form the reaction system into a dispersed state, adding a surface cross-linking agent at the time after or simultaneous with the insertion of the disperser to carrying out the cross-linking reaction, and hydrating the remaining imide ring after cross- linking reaction.

公开(公告)号：JPH11158273A

公开(公告)日：1999-06-15

申请号：JP32647297

申请日：1997-11-27

Applicant: MITSUI CHEMICALS INC

Inventor： NAGATOMO AKINORI ,  WADA MASARU ,  SUKEGAWA MAKOTO

IPC: C08J3/24 ,  C08G69/10 ,  C08G73/10 ,  C08L101/16

Abstract: PROBLEM TO BE SOLVED: To obtain a resin having (bio)degradability and excellent water absorptivity and water absorption rates by simultaneously adding a dispersant and a crosslinking agent to a solution prepared by dissolving a polysuccinimide in a good solvent, subjecting the resulting mixture in the state of a dispersion to a crosslinking reaction, and hydrolyzing the remaining imide rings. SOLUTION: To a solution prepared by dissolving a polysuccinimide having a weight-average molecular weight of 10,000 or above in a good solvent being at least one amidic organic solvent (e.g. N,N-dimethylformamide) or sulfur- containing organic solvent, a dispersant (e.g. water) being a poor solvent for the polysuccinimide and a crosslinking agent such as lysine, cystine, or ornithine, as separate feeds or as a premixed solution of both, are added dropwise over a period of time of 10 min to 3 hr to effect a crosslinking reaction at, desirably, 10-80 deg.C. The imide rings remaining after the crosslinking are hydrolyzed in the presence of water and a water-miscible organic solvent in hot water at 40-100 deg.C The weight of the good solvent used is 2-100 times as large as the weight of the polysuccinimide.