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公开(公告)号：BR7608409A
公开(公告)日：1977-12-13
申请号：BR7608409
申请日：1976-12-15
Applicant: HOECHST AG
IPC: C08K5/00 , C08K5/22 , C08L7/00 , C08L21/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L77/00 , C09B35/34 , C09D7/00 , C09D7/12
Abstract: 1527009 Disazo pigments HOECHST AG 17 Dec 1976 [20 Dec 1975] 52818/76 Heading C4P Novel disazo pigments having the formula (where each K independently is the radical of a coupling component which does not contain watersolubilizing groups) are prepared by tetraazotizing 3,8-diamino-phenanthridone and coupling with 2 mols. of a coupling component, or a mixture of coupling components of formula K-H. The coupling is preferably carried out in the presence of a surfactant and organic solvent. The product is preferably heated in an aqueous, aqueous organic or organic medium at 100-200‹ C. to modify the physical form. The pigments are used in spin dyeing and also to colour printing inks, lacquers, dispersion paints, rubbers, plastics materials and natural or synthetic resins and paper.
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公开(公告)号：DK134116C
公开(公告)日：1977-04-12
申请号：DK190374
申请日：1974-04-05
Applicant: HOECHST AG
Inventor： WEINGARTEN F W , HUNGER K , KLAPPERT E
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公开(公告)号：IN140296B
公开(公告)日：1976-10-09
申请号：IN113CA1974
申请日：1974-01-16
Applicant: HOECHST AG
Inventor： WEINGARTEN F , RIEPER W , HUNGER K , RIBKA J
Abstract: Process for the aftertreatment of the azo pigment of the formula C.I. PIGMENT ORANGE 36 wherein the crude pigment obtained after coupling is heated to temperatures from 100 DEG to 150 DEG C. in dry or wet condition in a solvent which is water-immiscible or not indefinitely water-miscible and the pigment is isolated in known manner. The pigment aftertreated in this way shows substantially improved hiding power while the same pigment prepared in the usual way has poor hiding power and can not be used in stoving lacquers.
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Patent Agency Ranking
公开(公告)号：DK300074A
公开(公告)日：1975-02-17
申请号：DK300074
申请日：1974-06-04
Applicant: HOECHST AG
IPC: C08K5/22 , C08K5/00 , C08L1/00 , C08L7/00 , C08L21/00 , C08L27/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L77/00 , C09B35/03 , C09B35/34 , C09D11/00 , C09D11/02
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：BR7402714D0
公开(公告)日：1974-11-05
申请号：BR271474
申请日：1974-04-05
Applicant: HOECHST AG
Inventor： WEINGARTEN F , HUNGER K , KLAPPERT E
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公开(公告)号：CA918657A
公开(公告)日：1973-01-09
申请号：CA59618
申请日：1969-08-15
Applicant: HOECHST AG
Inventor： HUNGER K , MEININGER F , SPRINGER H
IPC: C09B62/457
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公开(公告)号：DK145547B
公开(公告)日：1982-12-06
申请号：DK271178
申请日：1978-06-16
Applicant: HOECHST AG
Inventor： FROELICH H , HUNGER K
IPC: C08K5/00 , C08K5/22 , C08K5/23 , C08L7/00 , C08L21/00 , C08L23/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L101/00 , C09B29/33 , C09B67/22 , C09D7/00 , C09D7/12 , C09D11/00 , C09D11/02
Abstract: Mixtures of monoazo compounds which are obtainable by diazotizing 0.75 to 0.85 molar equivalent of 5-nitro-2-amino-anisol and 0.25 to 0.15 molar equivalent of 3-nitro-4-amino-anisol and coupling onto 2-acetoacetylamino-anisol are pigments of high tinctorial strength, transparency, gloss and fastness to light having good rheological properties.
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