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公开(公告)号：IN175637B
公开(公告)日：1995-07-29
申请号：IN750CA1990
申请日：1990-08-31
Applicant: HOECHST AG
Inventor： KUHN REINHARD , BOOS MARGARETA , BINDER RUDOLF , HOFMANN KLAUS
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Patent Agency Ranking
公开(公告)号：ES2054373T3
公开(公告)日：1994-08-01
申请号：ES90914724
申请日：1990-09-04
Applicant: HOECHST AG
Inventor： KUHN REINHARD , BOOS MARGARETA , BINDER RUDOLF , HOFMANN KLAUS
Abstract: PCT No. PCT/EP90/01480 Sec. 371 Date Apr. 20, 1992 Sec. 102(e) Date Apr. 20, 1992 PCT Filed Sep. 4, 1990 PCT Pub. No. WO91/04302 PCT Pub. Date Apr. 4, 1991.Coupling products of diazotized o- or p-toluidines to 3-hydroxy-2-naphthoic acid p-anisidide do not produce optimum dyeing properties in HT exhaustion dyeing of wound packages of synthetic fiber materials. Filtration occurs time after time under critical conditions, since these single dyestuffs and also mixtures of these with one another build up too slowly in the heating-up phase. A bright red multi-component system of the same color shade, which exhibits a significantly improved exhaustion capacity by synergism during HT dyeing of wound packages and no longer presents difficulties in respect of filtration, can be obtained by mixing monoazo dyestuffs which are obtained by coupling diazotized aniline and p-toluidine in each case to 3-hydroxy-2-naphthoic acid p-anisidide.
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公开(公告)号：ES2049231T3
公开(公告)日：1994-04-16
申请号：ES88113818
申请日：1988-08-25
Applicant: HOECHST AG
Inventor： HAHNKE MANFRED DR , KUHN REINHARD
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公开(公告)号：BR8406766A
公开(公告)日：1985-10-22
申请号：BR8406766
申请日：1984-12-28
Applicant: HOECHST AG
Inventor： HAHNKE MANFRED , KUHN REINHARD , HAHNLE REINHARD , SCHICKFLUSS RUDOLF
Abstract: Disperse Blue 56 is an important blue dyestuff for dyeing PES fibers at the boil or under high-temperature conditions. This anthraquinonoid compound Disperse Blue 56, in addition to its advantages (high light fastness, pH/reduction insensitivity, purity of hue), has some technical disadvantages (poor leveling properties, pronounced staining of adjacent fiber, metameric red shift). By combining a plurality of blue disperse azo dyestuffs having selected structural features in the form of mixtures or mix-crystals it is possible to match the advantages of Disperse Blue 56 while substantially avoiding its disadvantages at the same time. These azo dyestuffs are based on coupling products of diazotized 2,6-substituted 4-nitroanilines with substituted N,N-dialkylanilines.
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公开(公告)号：MX174610B
公开(公告)日：1994-05-30
申请号：MX2235690
申请日：1990-09-12
Applicant: HOECHST AG
Inventor： HOFMANN KLAUS , KUHN REINHARD , BOOS MARGARETA , BINDER RUDOLF
Abstract: PCT No. PCT/EP90/01480 Sec. 371 Date Apr. 20, 1992 Sec. 102(e) Date Apr. 20, 1992 PCT Filed Sep. 4, 1990 PCT Pub. No. WO91/04302 PCT Pub. Date Apr. 4, 1991.Coupling products of diazotized o- or p-toluidines to 3-hydroxy-2-naphthoic acid p-anisidide do not produce optimum dyeing properties in HT exhaustion dyeing of wound packages of synthetic fiber materials. Filtration occurs time after time under critical conditions, since these single dyestuffs and also mixtures of these with one another build up too slowly in the heating-up phase. A bright red multi-component system of the same color shade, which exhibits a significantly improved exhaustion capacity by synergism during HT dyeing of wound packages and no longer presents difficulties in respect of filtration, can be obtained by mixing monoazo dyestuffs which are obtained by coupling diazotized aniline and p-toluidine in each case to 3-hydroxy-2-naphthoic acid p-anisidide.
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公开(公告)号：MX173941B
公开(公告)日：1994-04-11
申请号：MX1639389
申请日：1989-06-09
Applicant: HOECHST AG
Inventor： HAHNKE MANFRED , KUHN REINHARD , BUHLER ULRICH
Abstract: A dye preparation in the form of a multiple component mixture or of a mixed crystal of disperse blue azo dyes, characterised in that it consists of the dyes of the formulae I and II … … and optionally of the formulae III and/or IV … … and also of the dyes of the formulae V and/or VI and/or VII and/or VIII … … or contains these.
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