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公开(公告)号：CA1182473A
公开(公告)日：1985-02-12
申请号：CA391845
申请日：1981-12-09
Applicant: BASF AG
Inventor： HUSSLEIN GERD , HAMPRECHT GERHARD , KOENIG KARL-HEINZ , BOEHM WALTER , GAENG MANFRED
IPC: C07C59/68 , C07C51/00 , C07C51/363 , C07C51/367 , C07C59/70 , C07C67/00
Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or .alpha.-2,4-dichloro- or .alpha.-2-methy1-4-chlorophenoxypro-pionic acid by reacting phenoxyacetic or 2-methylphenoxy-acetic acid or .alpha.-phenoxypropionic or .alpha.-2-methylphenoxy-propionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or .alpha.-phenoxypro-pionic or .alpha.-2-methylphenoxypropionic acid in water at from 30 to 70.degree.C at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro-or 2-methyl-4-chloro-phenoxyacetic acid or .alpha.-2,4-dichloro-or .alpha.-2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.
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公开(公告)号：DD201772A5
公开(公告)日：1983-08-10
申请号：DD23589881
申请日：1981-12-17
Applicant: BASF AG
Inventor： HUSSLEIN GERD , HAMPRECHT GERHARD , KOENIG KARL-HEINZ , BOEHM WALTER , GAENG MANFRED
IPC: C07C59/68 , C07C51/00 , C07C51/363 , C07C51/367 , C07C59/70 , C07C67/00
Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.
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公开(公告)号：DE19831291A1
公开(公告)日：2000-01-20
申请号：DE19831291
申请日：1998-07-13
Applicant: BASF AG
Inventor： GAENG MANFRED , KRUEGER RUDOLF , MIEDERER PETER
Abstract: Concentrated leuco-indigo solutions consisting essentially of 25-55 wt. % leuco-indigo in the form of a salt of a mixture of at least two alkali metal hydroxides containing not more than 70 mol. % of any one metal hydroxide, in the stoichiometric amount required for conversion of the leuco-indigo into the neutral indigo salt, together with water. Independent claims are also included for a process for the production of leuco-indigo solutions by catalytic hydrogenation of a 20-30 wt. % aqueous indigo suspension containing 4-10 wt. % alkali metal hydroxide mixture as defined above, after which the leuco-indigo content is adjusted to the required level by: (a) adding more indigo and optionally more alkali and continuing the hydrogenation; or (b) evaporation of the solution.
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公开(公告)号：AU679782B2
公开(公告)日：1997-07-10
申请号：AU7611994
申请日：1994-08-09
Applicant: BASF AG
Inventor： GAENG MANFRED , MIEDERER PETER , SCHULTZ PETER
IPC: C09B67/28
Abstract: PCT No. PCT/EP94/02637 Sec. 371 Date Feb. 12, 1996 Sec. 102(e) Date Feb. 12, 1996 PCT Filed Aug. 9, 1994 PCT Pub. No. WO95/05421 PCT Pub. Date Feb. 23, 1995Leucoindigo preparations in granule form consisting essentially of leucoindigo and alkali metal hydroxide and production of these preparations and use thereof for dyeing cellulose-containing textile material.
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公开(公告)号：IN155195B
公开(公告)日：1985-01-12
申请号：IN1392CA1981
申请日：1981-12-07
Applicant: BASF AG
Inventor： HUSSLEIN GERD , HAMPRECHT GERHARD , KOENIG KARL-HEINZ , BOEHM WALTER , GAENG MANFRED
IPC: C07C59/68 , C07C51/00 , C07C51/363 , C07C51/367 , C07C59/70 , C07C67/00 , C07C53/00
Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.
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Patent Agency Ranking
公开(公告)号：AU539818B2
公开(公告)日：1984-10-18
申请号：AU7906681
申请日：1981-12-30
Applicant: BASF AG
Inventor： HUSSLEIN GERD , HAMPRECHT GERHARD , KOENIG KARL-HEINZ , BOEHM WALTER , GAENG MANFRED
IPC: C07C59/68 , C07C51/00 , C07C51/363 , C07C51/367 , C07C59/70 , C07C67/00
Abstract: A process for the preparation of 2,4-dichloro- or 2-methyl-4-chlorophenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chlorophenoxypropionic acid by reacting phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid with chlorine in water, wherein phenoxyacetic acid or phenoxypropionic acid is precipitated from an aqueous solution thereof, chlorine gas is passed into the resulting suspension of phenoxyacetic or 2-methylphenoxyacetic acid or alpha -phenoxypropionic or alpha -2-methylphenoxypropionic acid in water at from 30 DEG to 70 DEG C. at a rate not exceeding the rate at which it is consumed in the suspension, until from 100 to 110% of the theoretically required amount of chlorine gas has been taken up by the suspension, and the 2,4-dichloro- or 2-methyl-4-chloro-phenoxyacetic acid or alpha -2,4-dichloro- or alpha -2-methyl-4-chloro-phenoxypropionic acid is isolated from the suspension.
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公开(公告)号：ZA8109006B
公开(公告)日：1982-12-29
申请号：ZA8109006
申请日：1981-12-30
Applicant: BASF AG
Inventor： HUSSLEIN GERD , HAMPRECHT GERHARD , KOENIG KARL HEINZ , BOEHM WALTER , GAENG MANFRED
IPC: C07C59/68 , C07C51/00 , C07C51/363 , C07C51/367 , C07C67/00 , C07C
CPC classification number: C07C51/363 , C07C51/367 , C07C59/70 , C07C59/68
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公开(公告)号：ZA200101170B
公开(公告)日：2002-05-13
申请号：ZA200101170
申请日：2001-02-12
Applicant: BASF AG
Inventor： GAENG MANFRED , KRUEGER RUDOLF , MIEDERER PETER
Abstract: Concentrated leuco indigo solutions useful for dyeing cellulosic textile material consist essentially of from 25 to 55% by weight of leuco indigo in the form of the leuco indigo salt, an amount which is essentially stoichiometrically sufficient to convert the leuco indigo into the neutral leuco indigo salt of a mixture of at least two alkali metal hydroxides wherein none of the alkali metal hydroxides accounts for more than 70 mol %, and water.
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公开(公告)号：BR9407245A
公开(公告)日：1996-09-24
申请号：BR9407245
申请日：1994-08-09
Applicant: BASF AG
Inventor： GAENG MANFRED , MIEDERER PETER , SCHULTZ PETER
IPC: C09B67/28
Abstract: PCT No. PCT/EP94/02637 Sec. 371 Date Feb. 12, 1996 Sec. 102(e) Date Feb. 12, 1996 PCT Filed Aug. 9, 1994 PCT Pub. No. WO95/05421 PCT Pub. Date Feb. 23, 1995Leucoindigo preparations in granule form consisting essentially of leucoindigo and alkali metal hydroxide and production of these preparations and use thereof for dyeing cellulose-containing textile material.
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公开(公告)号：AU7611994A
公开(公告)日：1995-03-14
申请号：AU7611994
申请日：1994-08-09
Applicant: BASF AG
Inventor： GAENG MANFRED , MIEDERER PETER , SCHULTZ PETER
IPC: C09B67/28
Abstract: PCT No. PCT/EP94/02637 Sec. 371 Date Feb. 12, 1996 Sec. 102(e) Date Feb. 12, 1996 PCT Filed Aug. 9, 1994 PCT Pub. No. WO95/05421 PCT Pub. Date Feb. 23, 1995Leucoindigo preparations in granule form consisting essentially of leucoindigo and alkali metal hydroxide and production of these preparations and use thereof for dyeing cellulose-containing textile material.
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