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公开(公告)号:DE3048058A1
公开(公告)日:1982-07-01
申请号:DE3048058
申请日:1980-12-19
Applicant: HOECHST AG
IPC: C07C309/02 , C01B17/90 , C07C20060101 , C07C67/00 , C07C301/00 , C07C303/14 , C07C303/44 , C07C309/04 , C07C139/14 , C07C139/04 , C07C143/02
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公开(公告)号:DE2855883A1
公开(公告)日:1980-07-10
申请号:DE2855883
申请日:1978-12-23
Applicant: HOECHST AG
Inventor: ARNDT OTTO DIPL CHEM DR , PAPENFUHS THEODOR DIPL CHEM DR , BOEHME PETER DIPL CHEM DR , TRONICH WOLFGANG DIPL CHEM DR , MEES BERNHARD DIPL CHEM DR
IPC: C07B61/00 , C07C67/00 , C07C239/00 , C07C275/40 , C07D235/02 , C07D235/26 , C07C127/19
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公开(公告)号:DE2157609A1
公开(公告)日:1973-05-30
申请号:DE2157609
申请日:1971-11-20
Applicant: HOECHST AG
Inventor: MEES BERNHARD DIPL CHEM DR , RIBKA JOACHIM DIPL CHEM DR
IPC: C08K5/00 , C08K5/22 , C08L7/00 , C08L21/00 , C09B29/15 , C09B67/22 , C09D7/00 , C09D7/12 , C09D11/00 , C09D11/02 , C10L1/00 , C09B29/10
Abstract: 1407059 Oil-soluble monoazo dye mixtures HOECHST AG 15 Nov 1972 [20 Nov 1971] 52739/72 Heading C4P Mixtures of monoazo dyes of formula wherein represents the residue of a mixture of 2 to 10 diazotized anilines, R 1 and R 2 are H atoms or C 1-4 alkyl or alkoxy groups and A is the residue of phenol and #-naphthol are prepared by coupling the mixture of diazotized anilines with a mixture of phenol and #-naphthol. The dyes may be used to colour lacquers, printing pastes, resins, fibrous materials and paper in orange shades but are preferably dissolved in aromatic solvents during or after manufacture and the concentrates obtained used to colour gasoline and mineral oils.
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公开(公告)号:DE2905126A1
公开(公告)日:1980-08-21
申请号:DE2905126
申请日:1979-02-10
Applicant: HOECHST AG
Inventor: MEES BERNHARD DIPL CHEM DR , RIBKA JOACHIM DIPL CHEM DR
IPC: C07D235/26
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公开(公告)号:DE2639668A1
公开(公告)日:1978-03-09
申请号:DE2639668
申请日:1976-09-03
Applicant: HOECHST AG
Inventor: FUCHS OTTO DIPL CHEM DR , MEES BERNHARD DIPL CHEM DR , BERTHOLD RUEDIGER DIPL CHEM DR , LANGE SIEGFRIED DIPL-CHEM DR
IPC: A61K31/195 , C07C67/00 , C07C301/00 , C07C303/22 , C07C309/51 , C07C143/67
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公开(公告)号:DE2455704A1
公开(公告)日:1976-08-12
申请号:DE2455704
申请日:1974-11-25
Applicant: HOECHST AG
IPC: C07B61/00 , C07C20060101 , C07C67/00 , C07C213/00 , C07C213/02 , C07C217/84 , C07C93/14
Abstract: 1527892 Preparation of 4-chloro-2,5-dimethoxyaniline HOECHST AG 25 Nov 1975 [25 Nov 1974] 48445/75 Heading C2C 4 - Chloro - 2,5 - dimethoxyaniline or a salt thereof is obtained by treating a mixture comprising water and particles of 4-chloro-2,5- dimethoxynitrobenzene having an average size of less than 100 microns with hydrogen in the presence of a nickel catalyst, and if desired, converting the 4-chloro-2,5-dimethoxyaniline to a salt thereof.
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公开(公告)号:DE2654850A1
公开(公告)日:1978-06-08
申请号:DE2654850
申请日:1976-12-03
Applicant: HOECHST AG
IPC: C07C69/67 , B01J31/00 , C07B61/00 , C07C45/00 , C07C45/72 , C07C45/75 , C07C49/603 , C07C67/00 , C07C69/757 , C07C69/74 , C07C49/48
Abstract: The known condensation reaction of lower alkanoylacetic acid lower alkyl esters with aldehydes catalyzed by amines proceeds safe and in high yields if the amineis an aliphatic tertiary amine. The products are precursors of aromatic amines.
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公开(公告)号:DE2621168A1
公开(公告)日:1977-11-17
申请号:DE2621168
申请日:1976-05-13
Applicant: HOECHST AG
Inventor: ARNDT OTTO DIPL CHEM DR , MEES BERNHARD DIPL CHEM DR
IPC: C07C309/30 , C07C67/00 , C07C301/00 , C07C303/06 , C07C143/28 , C07C139/00
Abstract: Pure toluene-4-sulfonic acid is obtained without forming any by-products by sulfonating toluene with sulfuric acid at an elevated temperature, separating a first batch of toluene-4-sulfonic acid hydrate, washing it free of isomers with sulfuric acid, combining the mother liquor and the washing effluent, heating them, allowing a second batch of hydrate to crystallize and, optionally, working up the final mother liquor by hydrolizing the toluene sulfonic acids therein and recycling the toluene so formed and the sulfuric acid after concentrating it to its initial strength.
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公开(公告)号:DE2328678A1
公开(公告)日:1975-01-02
申请号:DE2328678
申请日:1973-06-06
Applicant: HOECHST AG
Inventor: HUNGER KLAUS DIPL CHEM DR , MEES BERNHARD DIPL CHEM DR
IPC: C08K5/00 , C08K5/22 , C08L1/00 , C08L7/00 , C08L21/00 , C08L27/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L77/00 , C09B35/03 , C09B35/34 , C09D11/00 , C09D11/02 , C09B33/14
Abstract: Novel valuable, water-insoluble disazo pigments of the general formula 1 WHEREIN R is hydrogen, methyl, methoxy or halogen, preferably chlorine or bromine, and X also represents hydrogen or halogen, preferably chlorine. The disazo compounds are obtained by bisdiazotizing a 2,7-diaminodiphenylenesulfone and coupling it on an acetoacetylbenzimidazolone. These pigments are suitable for preparing printing inks, color lakes and dispersion paints, for dyeing rubber, plastics and natural or synthetic resins. Furthermore, they are suitable for the printing of pigments on substrates, especially textile fibre materials or other flat articles such as paper.
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公开(公告)号:DE2758818A1
公开(公告)日:1979-07-12
申请号:DE2758818
申请日:1977-12-30
Applicant: HOECHST AG
Inventor: ARNDT OTTO DIPL CHEM DR , MEES BERNHARD DIPL CHEM DR , TRONISCH WOLFGANG DIPL CHEM DR , DIETZ ERICH DIPL CHEM DR
IPC: C07D235/26 , C09B29/20 , C09B29/22 , C09B67/10 , C09B67/48
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